UART support for Borg16; using Peter Fleury's UART library
This commit is contained in:
Christian Kroll
parent
c6fde40211
commit
fca9b8f07a
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@ -62,6 +62,11 @@ source src/can/config.in
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###############################################################################
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###############################################################################
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### UART Menu #################################################################
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source src/uart/config.in
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###############################################################################
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### Borg Menu #################################################################
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### Borg Menu #################################################################
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dep_bool "Menu Support" MENU_SUPPORT $JOYSTICK_SUPPORT
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dep_bool "Menu Support" MENU_SUPPORT $JOYSTICK_SUPPORT
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depends on JOYSTICK_SUPPORT
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depends on JOYSTICK_SUPPORT
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@ -0,0 +1,162 @@
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#
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# Automatically generated by make menuconfig: don't edit
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#
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#
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# General Setup
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#
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MCU=atmega644
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FREQ=16000000
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#
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# Borg Hardware
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#
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NUM_ROWS=16
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NUM_COLS=16
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NUMPLANE=3
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BORG_HW=HW_BORG_16
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#
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# Borg16 port setup
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#
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UART_SUPPORT=y
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UART_BAUDRATE_SETTING=19200
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COLPORT1=PORTC
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COLPORT2=PORTA
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ROWPORT=PORTD
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PIN_MCLR=4
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PIN_CLK=6
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PIN_DATA=7
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# REVERSE_COLS is not set
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# INVERT_ROWS is not set
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# INTERLACED_ROWS is not set
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# INTERLACED_COLS is not set
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#
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# Features
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#
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RANDOM_SUPPORT=y
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# LAP_TIME_EXTENSION is not set
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SCROLLTEXT_SUPPORT=y
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SCROLLTEXT_FONT=FONT_ARIAL8
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SCROLLTEXT_BUFFER_SIZE=128
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SCROLL_X_SPEED=20
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SCROLL_Y_SPEED=20
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SCROLLTEXT_TEXT="</#www.das-labor.org"
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# RFM12_SUPPORT is not set
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#
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# Joystick Support
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#
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JOYSTICK_SUPPORT=y
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JOYSTICK_CHOICE=JOY_PARALLEL
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#
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# Joystick Settings
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#
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PARALLEL_JOYSTICK_SUPPORT=y
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JOYSTICK_PIN_UP=PINB
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JOYSTICK_BIT_UP=0
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JOYSTICK_PIN_DOWN=PINB
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JOYSTICK_BIT_DOWN=1
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JOYSTICK_PIN_LEFT=PINB
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JOYSTICK_BIT_LEFT=2
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JOYSTICK_PIN_RIGHT=PINB
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JOYSTICK_BIT_RIGHT=3
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JOYSTICK_PIN_FIRE=PIND
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JOYSTICK_BIT_FIRE=3
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CAN_SUPPORT=y
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# SPI_HARDWARE is not set
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SPI_PORTIDX=1
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SPI_PIN_MOSI=5
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SPI_PIN_MISO=6
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SPI_PIN_SCK=7
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SPI_PIN_SS=4
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# CAN_INTERRUPT is not set
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SPI_REG_PIN_MCP_INT=PIND
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SPI_PIN_MCP_INT=2
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MENU_SUPPORT=y
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#
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# Games
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#
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GAME_TETRIS_CORE=y
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GAME_TETRIS=y
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GAME_BASTET=y
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GAME_TETRIS_FP=y
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GAME_SPACE_INVADERS=y
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GAME_SNAKE=y
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GAME_BREAKOUT=y
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GAME_KART=y
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#
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# Animations
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#
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ANIMATION_SCROLLTEXT=y
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ANIMATION_SPIRAL=y
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SPIRAL_DELAY=5
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ANIMATION_JOERN1=y
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ANIMATION_SNAKE=y
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SNAKE_GAME_DELAY=200
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SNAKE_ANIM_DELAY=100
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SNAKE_TERMINATION_DELAY=60
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SNAKE_MAX_LENGTH=64
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SNAKE_MAX_APPLES=10
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ANIMATION_CHECKERBOARD=y
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ANIMATION_FIRE=y
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FIRE_S=30
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FIRE_N=5
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FIRE_DIV=44
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FIRE_DELAY=50
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FIRE_CYCLES=800
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ANIMATION_MATRIX=y
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MATRIX_STREAMER_NUM=30
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MATRIX_CYCLES=500
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MATRIX_DELAY=60
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ANIMATION_RANDOM_BRIGHT=y
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ANIMATION_STONEFLY=y
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ANIMATION_FLYINGDOTS=y
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ANIMATION_GAMEOFLIFE=y
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GOL_DELAY=100
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GOL_CYCLES=360
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ANIMATION_BREAKOUT=y
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# ANIMATION_MHERWEG is not set
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ANIMATION_MOIRE=y
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ANIMATION_LTN_ANT=y
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# ANIMATION_TIME is not set
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TIME_MASTER_ADDR=0x00
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TIME_UPDATE_TIMEOUT=23
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ANIMATION_BMSCROLLER=y
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ANIMATION_LABORLOGO=y
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# ANIMATION_AMPHIBIAN is not set
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# ANIMATION_LOGO_OOS is not set
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ANIMATION_FAIRYDUST=y
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#
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# Fixed-point math patterns
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#
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ANIMATION_PLASMA=y
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FP_PLASMA_DELAY=1
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ANIMATION_PSYCHEDELIC=y
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FP_PSYCHO_DELAY=15
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ANIMATION_BLACKHOLE=y
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ANIMATION_DNA=y
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ANIMATION_SQUARES=y
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ANIMATION_TESTS=y
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ANIMATION_OFF=y
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#
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# small Animations
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#
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# SMALLANIMATION_ROWWALK is not set
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SMALLANIMATION_ROWWALK_SPEED=50
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SMALLANIMATION_ROWWALK_COUNT=10
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# SMALLANIMATION_COLWALK is not set
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SMALLANIMATION_COLWALK_SPEED=50
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SMALLANIMATION_COLWALK_COUNT=10
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# SMALLANIMATION_ROWBOUNCE is not set
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SMALLANIMATION_ROWBOUNCE_SPEED=50
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SMALLANIMATION_ROWBOUNCE_COUNT=10
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# SMALLANIMATION_COLBOUNCE is not set
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SMALLANIMATION_COLBOUNCE_SPEED=50
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SMALLANIMATION_COLBOUNCE_COUNT=10
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@ -17,6 +17,19 @@ comment "Borg16 port setup"
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#//das dier sind die individuellen Dateneingänge für die Schieberegister
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#//das dier sind die individuellen Dateneingänge für die Schieberegister
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#define PIN_SHFT1 PD7
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#define PIN_SHFT1 PD7
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bool "UART Support" UART_SUPPORT n
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choice 'Baud Rate' \
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"2400 2400 \
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4800 4800 \
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9600 9600 \
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14400 14400 \
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19200 19200 \
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28800 28800 \
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38400 38400 \
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57600 57600 \
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76800 76800 \
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115200 115200" \
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'19200' UART_BAUDRATE_SETTING
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choice 'Column Port 1 (right)' \
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choice 'Column Port 1 (right)' \
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"PORTA PORTA \
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"PORTA PORTA \
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13
src/main.c
13
src/main.c
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#include <setjmp.h>
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#include <setjmp.h>
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#include <avr/interrupt.h>
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#include <avr/interrupt.h>
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#include <avr/pgmspace.h>
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#include <stdio.h>
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#include <stdio.h>
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#include "config.h"
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#include "config.h"
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#include "can/borg_can.h"
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#include "can/borg_can.h"
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#endif
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#endif
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#ifdef UART_SUPPORT
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# include "uart/uart.h"
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#endif
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#ifdef RFM12_SUPPORT
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#ifdef RFM12_SUPPORT
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#include "rfm12/borg_rfm12.h"
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#include "rfm12/borg_rfm12.h"
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#endif
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#endif
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@ -41,12 +46,12 @@ int main (void){
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bcan_init();
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bcan_init();
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#endif
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#endif
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#ifdef JOYSTICK_SUPPORT
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#ifdef UART_SUPPORT
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joy_init();
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uart_init(UART_BAUD_SELECT(UART_BAUDRATE_SETTING, F_CPU));
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#endif
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#endif
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#ifdef UART_SUPPORT
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#ifdef JOYSTICK_SUPPORT
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uart_init();
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joy_init();
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#endif
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#endif
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sei();
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sei();
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MAKETOPDIR = ../..
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TARGET = libuart.a
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SRC_SIM :=
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include $(MAKETOPDIR)/defaults.mk
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ifeq ($(UART_SUPPORT),y)
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SRC = uart.c
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SRC += uart_commands.c
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endif
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include $(MAKETOPDIR)/rules.mk
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include $(MAKETOPDIR)/depend.mk
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@ -0,0 +1 @@
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# nothing for now
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809
src/uart/uart.c
809
src/uart/uart.c
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/* USART-Init beim ATmegaXX */
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/*************************************************************************
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Title: Interrupt UART library with receive/transmit circular buffers
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Author: Peter Fleury <pfleury@gmx.ch> http://jump.to/fleury
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File: $Id: uart.c,v 1.12 2014/01/08 21:58:12 peter Exp $
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Software: AVR-GCC 4.1, AVR Libc 1.4.6 or higher
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Hardware: any AVR with built-in UART,
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License: GNU General Public License
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DESCRIPTION:
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An interrupt is generated when the UART has finished transmitting or
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receiving a byte. The interrupt handling routines use circular buffers
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for buffering received and transmitted data.
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The UART_RX_BUFFER_SIZE and UART_TX_BUFFER_SIZE variables define
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the buffer size in bytes. Note that these variables must be a
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power of 2.
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USAGE:
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Refere to the header file uart.h for a description of the routines.
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See also example test_uart.c.
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NOTES:
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Based on Atmel Application Note AVR306
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LICENSE:
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Copyright (C) 2006 Peter Fleury
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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*************************************************************************/
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#include <avr/io.h>
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <avr/interrupt.h>
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#include <stdlib.h>
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#include <avr/pgmspace.h>
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#include "config.h"
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#include "uart.h"
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#include "uart.h"
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#ifdef ATMEGA128
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#define UCSRB UCSR0B
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/*
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#define UCSRC UCSR0C
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* constants and macros
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#define UDR UDR0
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*/
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#define UBRRH UBRR0H
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#define UBRRL UBRR0L
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/* size of RX/TX buffers */
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#define URSEL UMSEL
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#define UART_RX_BUFFER_MASK ( UART_RX_BUFFER_SIZE - 1)
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#define UART_TX_BUFFER_MASK ( UART_TX_BUFFER_SIZE - 1)
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#if ( UART_RX_BUFFER_SIZE & UART_RX_BUFFER_MASK )
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#error RX buffer size is not a power of 2
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#endif
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#if ( UART_TX_BUFFER_SIZE & UART_TX_BUFFER_MASK )
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#error TX buffer size is not a power of 2
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#endif
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#if defined(__AVR_AT90S2313__) \
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|| defined(__AVR_AT90S4414__) || defined(__AVR_AT90S4434__) \
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|| defined(__AVR_AT90S8515__) || defined(__AVR_AT90S8535__) \
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|| defined(__AVR_ATmega103__)
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/* old AVR classic or ATmega103 with one UART */
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#define AT90_UART
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#define UART0_RECEIVE_INTERRUPT UART_RX_vect
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#define UART0_TRANSMIT_INTERRUPT UART_UDRE_vect
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#define UART0_STATUS USR
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#define UART0_CONTROL UCR
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#define UART0_DATA UDR
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#define UART0_UDRIE UDRIE
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#elif defined(__AVR_AT90S2333__) || defined(__AVR_AT90S4433__)
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/* old AVR classic with one UART */
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#define AT90_UART
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#define UART0_RECEIVE_INTERRUPT UART_RX_vect
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#define UART0_TRANSMIT_INTERRUPT UART_UDRE_vect
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#define UART0_STATUS UCSRA
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#define UART0_CONTROL UCSRB
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#define UART0_DATA UDR
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#define UART0_UDRIE UDRIE
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#elif defined(__AVR_ATmega8__) || defined(__AVR_ATmega16__) || defined(__AVR_ATmega32__) \
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|| defined(__AVR_ATmega323__)
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/* ATmega with one USART */
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#define ATMEGA_USART
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#define UART0_RECEIVE_INTERRUPT USART_RXC_vect
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#define UART0_TRANSMIT_INTERRUPT USART_UDRE_vect
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#define UART0_STATUS UCSRA
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#define UART0_CONTROL UCSRB
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#define UART0_DATA UDR
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#define UART0_UDRIE UDRIE
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#elif defined (__AVR_ATmega8515__) || defined(__AVR_ATmega8535__)
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#define ATMEGA_USART
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#define UART0_RECEIVE_INTERRUPT USART_RX_vect
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#define UART0_TRANSMIT_INTERRUPT USART_UDRE_vect
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#define UART0_STATUS UCSRA
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#define UART0_CONTROL UCSRB
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#define UART0_DATA UDR
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#define UART0_UDRIE UDRIE
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#elif defined(__AVR_ATmega163__)
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/* ATmega163 with one UART */
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#define ATMEGA_UART
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#define UART0_RECEIVE_INTERRUPT UART_RX_vect
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#define UART0_TRANSMIT_INTERRUPT UART_UDRE_vect
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#define UART0_STATUS UCSRA
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#define UART0_CONTROL UCSRB
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#define UART0_DATA UDR
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#define UART0_UDRIE UDRIE
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#elif defined(__AVR_ATmega162__)
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/* ATmega with two USART */
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#define ATMEGA_USART0
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#define ATMEGA_USART1
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#define UART0_RECEIVE_INTERRUPT USART0_RXC_vect
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#define UART1_RECEIVE_INTERRUPT USART1_RXC_vect
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#define UART0_TRANSMIT_INTERRUPT USART0_UDRE_vect
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||||||
|
#define UART1_TRANSMIT_INTERRUPT USART1_UDRE_vect
|
||||||
|
#define UART0_STATUS UCSR0A
|
||||||
|
#define UART0_CONTROL UCSR0B
|
||||||
|
#define UART0_DATA UDR0
|
||||||
|
#define UART0_UDRIE UDRIE0
|
||||||
|
#define UART1_STATUS UCSR1A
|
||||||
|
#define UART1_CONTROL UCSR1B
|
||||||
|
#define UART1_DATA UDR1
|
||||||
|
#define UART1_UDRIE UDRIE1
|
||||||
|
#elif defined(__AVR_ATmega64__) || defined(__AVR_ATmega128__)
|
||||||
|
/* ATmega with two USART */
|
||||||
|
#define ATMEGA_USART0
|
||||||
|
#define ATMEGA_USART1
|
||||||
|
#define UART0_RECEIVE_INTERRUPT USART0_RX_vect
|
||||||
|
#define UART1_RECEIVE_INTERRUPT USART1_RX_vect
|
||||||
|
#define UART0_TRANSMIT_INTERRUPT USART0_UDRE_vect
|
||||||
|
#define UART1_TRANSMIT_INTERRUPT USART1_UDRE_vect
|
||||||
|
#define UART0_STATUS UCSR0A
|
||||||
|
#define UART0_CONTROL UCSR0B
|
||||||
|
#define UART0_DATA UDR0
|
||||||
|
#define UART0_UDRIE UDRIE0
|
||||||
|
#define UART1_STATUS UCSR1A
|
||||||
|
#define UART1_CONTROL UCSR1B
|
||||||
|
#define UART1_DATA UDR1
|
||||||
|
#define UART1_UDRIE UDRIE1
|
||||||
|
#elif defined(__AVR_ATmega161__)
|
||||||
|
/* ATmega with UART */
|
||||||
|
#error "AVR ATmega161 currently not supported by this libaray !"
|
||||||
|
#elif defined(__AVR_ATmega169__)
|
||||||
|
/* ATmega with one USART */
|
||||||
|
#define ATMEGA_USART
|
||||||
|
#define UART0_RECEIVE_INTERRUPT USART0_RX_vect
|
||||||
|
#define UART0_TRANSMIT_INTERRUPT USART0_UDRE_vect
|
||||||
|
#define UART0_STATUS UCSRA
|
||||||
|
#define UART0_CONTROL UCSRB
|
||||||
|
#define UART0_DATA UDR
|
||||||
|
#define UART0_UDRIE UDRIE
|
||||||
|
#elif defined(__AVR_ATmega48__) || defined(__AVR_ATmega88__) || defined(__AVR_ATmega168__) || defined(__AVR_ATmega48P__) || defined(__AVR_ATmega88P__) || defined(__AVR_ATmega168P__) || defined(__AVR_ATmega328P__) \
|
||||||
|
|| defined(__AVR_ATmega3250__) || defined(__AVR_ATmega3290__) ||defined(__AVR_ATmega6450__) || defined(__AVR_ATmega6490__)
|
||||||
|
/* ATmega with one USART */
|
||||||
|
#define ATMEGA_USART0
|
||||||
|
#define UART0_RECEIVE_INTERRUPT USART_RX_vect
|
||||||
|
#define UART0_TRANSMIT_INTERRUPT USART_UDRE_vect
|
||||||
|
#define UART0_STATUS UCSR0A
|
||||||
|
#define UART0_CONTROL UCSR0B
|
||||||
|
#define UART0_DATA UDR0
|
||||||
|
#define UART0_UDRIE UDRIE0
|
||||||
|
#elif defined(__AVR_ATtiny2313__)
|
||||||
|
#define ATMEGA_USART
|
||||||
|
#define UART0_RECEIVE_INTERRUPT USART_RX_vect
|
||||||
|
#define UART0_TRANSMIT_INTERRUPT USART_UDRE_vect
|
||||||
|
#define UART0_STATUS UCSRA
|
||||||
|
#define UART0_CONTROL UCSRB
|
||||||
|
#define UART0_DATA UDR
|
||||||
|
#define UART0_UDRIE UDRIE
|
||||||
|
#elif defined(__AVR_ATmega329__) || \
|
||||||
|
defined(__AVR_ATmega649__) || \
|
||||||
|
defined(__AVR_ATmega325__) || \
|
||||||
|
defined(__AVR_ATmega645__)
|
||||||
|
/* ATmega with one USART */
|
||||||
|
#define ATMEGA_USART0
|
||||||
|
#define UART0_RECEIVE_INTERRUPT USART0_RX_vect
|
||||||
|
#define UART0_TRANSMIT_INTERRUPT USART0_UDRE_vect
|
||||||
|
#define UART0_STATUS UCSR0A
|
||||||
|
#define UART0_CONTROL UCSR0B
|
||||||
|
#define UART0_DATA UDR0
|
||||||
|
#define UART0_UDRIE UDRIE0
|
||||||
|
#elif defined(__AVR_ATmega2560__) || defined(__AVR_ATmega2561__) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega1281__) || defined(__AVR_ATmega640__)
|
||||||
|
/* ATmega with two USART */
|
||||||
|
#define ATMEGA_USART0
|
||||||
|
#define ATMEGA_USART1
|
||||||
|
#define UART0_RECEIVE_INTERRUPT USART0_RX_vect
|
||||||
|
#define UART1_RECEIVE_INTERRUPT USART1_RX_vect
|
||||||
|
#define UART0_TRANSMIT_INTERRUPT USART0_UDRE_vect
|
||||||
|
#define UART1_TRANSMIT_INTERRUPT USART1_UDRE_vect
|
||||||
|
#define UART0_STATUS UCSR0A
|
||||||
|
#define UART0_CONTROL UCSR0B
|
||||||
|
#define UART0_DATA UDR0
|
||||||
|
#define UART0_UDRIE UDRIE0
|
||||||
|
#define UART1_STATUS UCSR1A
|
||||||
|
#define UART1_CONTROL UCSR1B
|
||||||
|
#define UART1_DATA UDR1
|
||||||
|
#define UART1_UDRIE UDRIE1
|
||||||
|
#elif defined(__AVR_ATmega644__)
|
||||||
|
/* ATmega with one USART */
|
||||||
|
#define ATMEGA_USART0
|
||||||
|
#define UART0_RECEIVE_INTERRUPT USART0_RX_vect
|
||||||
|
#define UART0_TRANSMIT_INTERRUPT USART0_UDRE_vect
|
||||||
|
#define UART0_STATUS UCSR0A
|
||||||
|
#define UART0_CONTROL UCSR0B
|
||||||
|
#define UART0_DATA UDR0
|
||||||
|
#define UART0_UDRIE UDRIE0
|
||||||
|
#elif defined(__AVR_ATmega164P__) || defined(__AVR_ATmega324P__) || defined(__AVR_ATmega644P__)
|
||||||
|
/* ATmega with two USART */
|
||||||
|
#define ATMEGA_USART0
|
||||||
|
#define ATMEGA_USART1
|
||||||
|
#define UART0_RECEIVE_INTERRUPT USART0_RX_vect
|
||||||
|
#define UART1_RECEIVE_INTERRUPT USART1_RX_vect
|
||||||
|
#define UART0_TRANSMIT_INTERRUPT USART0_UDRE_vect
|
||||||
|
#define UART1_TRANSMIT_INTERRUPT USART1_UDRE_vect
|
||||||
|
#define UART0_STATUS UCSR0A
|
||||||
|
#define UART0_CONTROL UCSR0B
|
||||||
|
#define UART0_DATA UDR0
|
||||||
|
#define UART0_UDRIE UDRIE0
|
||||||
|
#define UART1_STATUS UCSR1A
|
||||||
|
#define UART1_CONTROL UCSR1B
|
||||||
|
#define UART1_DATA UDR1
|
||||||
|
#define UART1_UDRIE UDRIE1
|
||||||
|
#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1287__)
|
||||||
|
/* AT90USBxx with one USART */
|
||||||
|
#define AT90USB_USART
|
||||||
|
#define UART0_RECEIVE_INTERRUPT USART1_RX_vect
|
||||||
|
#define UART0_TRANSMIT_INTERRUPT USART1_UDRE_vect
|
||||||
|
#define UART0_STATUS UCSR1A
|
||||||
|
#define UART0_CONTROL UCSR1B
|
||||||
|
#define UART0_DATA UDR1
|
||||||
|
#define UART0_UDRIE UDRIE1
|
||||||
|
#elif defined __AVR
|
||||||
|
#error "no UART definition for MCU available"
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
|
|
||||||
#define UART_BAUD_CALC(UART_BAUD_RATE,F_OSC) ((F_OSC)/((UART_BAUD_RATE)*16L))
|
/*
|
||||||
|
* module global variables
|
||||||
|
*/
|
||||||
|
static volatile unsigned char UART_TxBuf[UART_TX_BUFFER_SIZE];
|
||||||
|
static volatile unsigned char UART_RxBuf[UART_RX_BUFFER_SIZE];
|
||||||
|
static volatile unsigned char UART_TxHead;
|
||||||
|
static volatile unsigned char UART_TxTail;
|
||||||
|
static volatile unsigned char UART_RxHead;
|
||||||
|
static volatile unsigned char UART_RxTail;
|
||||||
|
static volatile unsigned char UART_LastRxError;
|
||||||
|
|
||||||
|
#if defined( ATMEGA_USART1 )
|
||||||
#ifdef UART_INTERRUPT
|
static volatile unsigned char UART1_TxBuf[UART_TX_BUFFER_SIZE];
|
||||||
volatile static char rxbuf[UART_RXBUFSIZE];
|
static volatile unsigned char UART1_RxBuf[UART_RX_BUFFER_SIZE];
|
||||||
volatile static char txbuf[UART_TXBUFSIZE];
|
static volatile unsigned char UART1_TxHead;
|
||||||
volatile static char *volatile rxhead, *volatile rxtail;
|
static volatile unsigned char UART1_TxTail;
|
||||||
volatile static char *volatile txhead, *volatile txtail;
|
static volatile unsigned char UART1_RxHead;
|
||||||
|
static volatile unsigned char UART1_RxTail;
|
||||||
|
static volatile unsigned char UART1_LastRxError;
|
||||||
ISR(USART_UDRE_vect) {
|
|
||||||
#ifdef UART_LEDS
|
|
||||||
PORTC ^= 0x01;
|
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
if ( txhead == txtail ) {
|
|
||||||
UCSRB &= ~(1 << UDRIE); /* disable data register empty IRQ */
|
|
||||||
} else {
|
|
||||||
UDR = *txtail; /* schreibt das Zeichen x auf die Schnittstelle */
|
|
||||||
if (++txtail == (txbuf + UART_TXBUFSIZE)) txtail = txbuf;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
ISR(USART_RXC_vect) {
|
|
||||||
int diff;
|
|
||||||
|
|
||||||
#ifdef UART_LEDS
|
|
||||||
PORTC ^= 0x02;
|
ISR (UART0_RECEIVE_INTERRUPT)
|
||||||
|
/*************************************************************************
|
||||||
|
Function: UART Receive Complete interrupt
|
||||||
|
Purpose: called when the UART has received a character
|
||||||
|
**************************************************************************/
|
||||||
|
{
|
||||||
|
unsigned char tmphead;
|
||||||
|
unsigned char data;
|
||||||
|
unsigned char usr;
|
||||||
|
unsigned char lastRxError;
|
||||||
|
|
||||||
|
|
||||||
|
/* read UART status register and UART data register */
|
||||||
|
usr = UART0_STATUS;
|
||||||
|
data = UART0_DATA;
|
||||||
|
|
||||||
|
/* */
|
||||||
|
#if defined( AT90_UART )
|
||||||
|
lastRxError = (usr & (_BV(FE)|_BV(DOR)) );
|
||||||
|
#elif defined( ATMEGA_USART )
|
||||||
|
lastRxError = (usr & (_BV(FE)|_BV(DOR)) );
|
||||||
|
#elif defined( ATMEGA_USART0 )
|
||||||
|
lastRxError = (usr & (_BV(FE0)|_BV(DOR0)) );
|
||||||
|
#elif defined ( ATMEGA_UART )
|
||||||
|
lastRxError = (usr & (_BV(FE)|_BV(DOR)) );
|
||||||
|
#elif defined( AT90USB_USART )
|
||||||
|
lastRxError = (usr & (_BV(FE1)|_BV(DOR1)) );
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
/* buffer full? */
|
/* calculate buffer index */
|
||||||
diff = rxhead - rxtail;
|
tmphead = ( UART_RxHead + 1) & UART_RX_BUFFER_MASK;
|
||||||
if ( diff < 0 ) diff += UART_RXBUFSIZE;
|
|
||||||
if (diff < UART_RXBUFSIZE -1) {
|
if ( tmphead == UART_RxTail ) {
|
||||||
// buffer NOT full
|
/* error: receive buffer overflow */
|
||||||
*rxhead = UDR;
|
lastRxError = UART_BUFFER_OVERFLOW >> 8;
|
||||||
if (++rxhead == (rxbuf + UART_RXBUFSIZE)) rxhead = rxbuf;
|
}else{
|
||||||
} else {
|
/* store new index */
|
||||||
UDR; //reads the buffer to clear the interrupt condition
|
UART_RxHead = tmphead;
|
||||||
}
|
/* store received data in buffer */
|
||||||
|
UART_RxBuf[tmphead] = data;
|
||||||
|
}
|
||||||
|
UART_LastRxError |= lastRxError;
|
||||||
}
|
}
|
||||||
|
|
||||||
#endif // UART_INTERRUPT
|
|
||||||
|
|
||||||
|
ISR (UART0_TRANSMIT_INTERRUPT)
|
||||||
void uart_init() {
|
/*************************************************************************
|
||||||
PORTD |= 0x01; //Pullup an RXD an
|
Function: UART Data Register Empty interrupt
|
||||||
|
Purpose: called when the UART is ready to transmit the next byte
|
||||||
UCSRA = 0;
|
**************************************************************************/
|
||||||
UCSRB |= (1<<TXEN); //UART TX einschalten
|
|
||||||
UCSRC |= (1<<URSEL)|(3<<UCSZ0); //Asynchron 8N1
|
|
||||||
|
|
||||||
UCSRB |= ( 1 << RXEN ); //Uart RX einschalten
|
|
||||||
|
|
||||||
// UBRRH=(uint8_t)(UART_BAUD_CALC(UART_BAUD_RATE,F_CPU)>>8);
|
|
||||||
// UBRRL=(uint8_t)(UART_BAUD_CALC(UART_BAUD_RATE,F_CPU));
|
|
||||||
|
|
||||||
UBRRL = 8;
|
|
||||||
|
|
||||||
#ifdef UART_INTERRUPT
|
|
||||||
// init buffers
|
|
||||||
rxhead = rxtail = rxbuf;
|
|
||||||
txhead = txtail = txbuf;
|
|
||||||
|
|
||||||
// activate rx IRQ
|
|
||||||
UCSRB |= (1 << RXCIE);
|
|
||||||
#endif // UART_INTERRUPT
|
|
||||||
}
|
|
||||||
|
|
||||||
#ifdef UART_INTERRUPT
|
|
||||||
void uart_putc(char c) {
|
|
||||||
volatile int diff;
|
|
||||||
|
|
||||||
/* buffer full? */
|
|
||||||
do {
|
|
||||||
diff = txhead - txtail;
|
|
||||||
if ( diff < 0 ) diff += UART_TXBUFSIZE;
|
|
||||||
} while ( diff >= UART_TXBUFSIZE -1 );
|
|
||||||
|
|
||||||
cli();
|
|
||||||
*txhead = c;
|
|
||||||
if (++txhead == (txbuf + UART_TXBUFSIZE)) txhead = txbuf;
|
|
||||||
|
|
||||||
UCSRB |= (1 << UDRIE); /* enable data register empty IRQ */
|
|
||||||
sei();
|
|
||||||
}
|
|
||||||
#else // WITHOUT INTERRUPT
|
|
||||||
void uart_putc(char c) {
|
|
||||||
while (!(UCSRA & (1<<UDRE))); /* warten bis Senden moeglich */
|
|
||||||
UDR = c; /* schreibt das Zeichen x auf die Schnittstelle */
|
|
||||||
}
|
|
||||||
#endif // UART_INTERRUPT
|
|
||||||
|
|
||||||
|
|
||||||
void uart_putstr(char *str) {
|
|
||||||
while(*str) {
|
|
||||||
uart_putc(*str++);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
void uart_putstr_P(PGM_P str) {
|
|
||||||
char tmp;
|
|
||||||
while((tmp = pgm_read_byte(str))) {
|
|
||||||
uart_putc(tmp);
|
|
||||||
str++;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
void uart_hexdump(char *buf, int len)
|
|
||||||
{
|
{
|
||||||
unsigned char x=0;
|
unsigned char tmptail;
|
||||||
char sbuf[3];
|
|
||||||
|
|
||||||
while(len--){
|
|
||||||
itoa(*buf++, sbuf, 16);
|
if ( UART_TxHead != UART_TxTail) {
|
||||||
if (sbuf[1] == 0) uart_putc(' ');
|
/* calculate and store new buffer index */
|
||||||
uart_putstr(sbuf);
|
tmptail = (UART_TxTail + 1) & UART_TX_BUFFER_MASK;
|
||||||
uart_putc(' ');
|
UART_TxTail = tmptail;
|
||||||
if(++x == 16) {
|
/* get one byte from buffer and write it to UART */
|
||||||
uart_putstr_P(PSTR("\r\n"));
|
UART0_DATA = UART_TxBuf[tmptail]; /* start transmission */
|
||||||
x = 0;
|
}else{
|
||||||
}
|
/* tx buffer empty, disable UDRE interrupt */
|
||||||
}
|
UART0_CONTROL &= ~_BV(UART0_UDRIE);
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
#ifdef UART_INTERRUPT
|
/*************************************************************************
|
||||||
char uart_getc()
|
Function: uart_init()
|
||||||
|
Purpose: initialize UART and set baudrate
|
||||||
|
Input: baudrate using macro UART_BAUD_SELECT()
|
||||||
|
Returns: none
|
||||||
|
**************************************************************************/
|
||||||
|
void uart_init(unsigned int baudrate)
|
||||||
{
|
{
|
||||||
char val;
|
UART_TxHead = 0;
|
||||||
|
UART_TxTail = 0;
|
||||||
|
UART_RxHead = 0;
|
||||||
|
UART_RxTail = 0;
|
||||||
|
|
||||||
while(rxhead==rxtail) ;
|
#if defined( AT90_UART )
|
||||||
|
/* set baud rate */
|
||||||
|
UBRR = (unsigned char)baudrate;
|
||||||
|
|
||||||
val = *rxtail;
|
/* enable UART receiver and transmmitter and receive complete interrupt */
|
||||||
if (++rxtail == (rxbuf + UART_RXBUFSIZE)) rxtail = rxbuf;
|
UART0_CONTROL = _BV(RXCIE)|_BV(RXEN)|_BV(TXEN);
|
||||||
|
|
||||||
return val;
|
#elif defined (ATMEGA_USART)
|
||||||
}
|
/* Set baud rate */
|
||||||
#else // WITHOUT INTERRUPT
|
if ( baudrate & 0x8000 )
|
||||||
char uart_getc()
|
{
|
||||||
|
UART0_STATUS = (1<<U2X); //Enable 2x speed
|
||||||
|
baudrate &= ~0x8000;
|
||||||
|
}
|
||||||
|
UBRRH = (unsigned char)(baudrate>>8);
|
||||||
|
UBRRL = (unsigned char) baudrate;
|
||||||
|
|
||||||
|
/* Enable USART receiver and transmitter and receive complete interrupt */
|
||||||
|
UART0_CONTROL = _BV(RXCIE)|(1<<RXEN)|(1<<TXEN);
|
||||||
|
|
||||||
|
/* Set frame format: asynchronous, 8data, no parity, 1stop bit */
|
||||||
|
#ifdef URSEL
|
||||||
|
UCSRC = (1<<URSEL)|(3<<UCSZ0);
|
||||||
|
#else
|
||||||
|
UCSRC = (3<<UCSZ0);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#elif defined (ATMEGA_USART0 )
|
||||||
|
/* Set baud rate */
|
||||||
|
if ( baudrate & 0x8000 )
|
||||||
|
{
|
||||||
|
UART0_STATUS = (1<<U2X0); //Enable 2x speed
|
||||||
|
baudrate &= ~0x8000;
|
||||||
|
}
|
||||||
|
UBRR0H = (unsigned char)(baudrate>>8);
|
||||||
|
UBRR0L = (unsigned char) baudrate;
|
||||||
|
|
||||||
|
/* Enable USART receiver and transmitter and receive complete interrupt */
|
||||||
|
UART0_CONTROL = _BV(RXCIE0)|(1<<RXEN0)|(1<<TXEN0);
|
||||||
|
|
||||||
|
/* Set frame format: asynchronous, 8data, no parity, 1stop bit */
|
||||||
|
#ifdef URSEL0
|
||||||
|
UCSR0C = (1<<URSEL0)|(3<<UCSZ00);
|
||||||
|
#else
|
||||||
|
UCSR0C = (3<<UCSZ00);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#elif defined ( ATMEGA_UART )
|
||||||
|
/* set baud rate */
|
||||||
|
if ( baudrate & 0x8000 )
|
||||||
|
{
|
||||||
|
UART0_STATUS = (1<<U2X); //Enable 2x speed
|
||||||
|
baudrate &= ~0x8000;
|
||||||
|
}
|
||||||
|
UBRRHI = (unsigned char)(baudrate>>8);
|
||||||
|
UBRR = (unsigned char) baudrate;
|
||||||
|
|
||||||
|
/* Enable UART receiver and transmitter and receive complete interrupt */
|
||||||
|
UART0_CONTROL = _BV(RXCIE)|(1<<RXEN)|(1<<TXEN);
|
||||||
|
|
||||||
|
#elif defined ( AT90USB_USART )
|
||||||
|
/* set baud rate */
|
||||||
|
if ( baudrate & 0x8000 )
|
||||||
|
{
|
||||||
|
UART0_STATUS = (1<<U2X1 ); //Enable 2x speed
|
||||||
|
baudrate &= ~0x8000;
|
||||||
|
}
|
||||||
|
UBRR1H = (unsigned char)(baudrate>>8);
|
||||||
|
UBRR1L = (unsigned char) baudrate;
|
||||||
|
|
||||||
|
/* Enable UART receiver and transmitter and receive complete interrupt */
|
||||||
|
UART0_CONTROL = _BV(RXCIE1)|(1<<RXEN1)|(1<<TXEN1);
|
||||||
|
|
||||||
|
/* Set frame format: asynchronous, 8data, no parity, 1stop bit */
|
||||||
|
UCSR1C = (1<<UCSZ11)|(1<<UCSZ10);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
}/* uart_init */
|
||||||
|
|
||||||
|
|
||||||
|
/*************************************************************************
|
||||||
|
Function: uart_getc()
|
||||||
|
Purpose: return byte from ringbuffer
|
||||||
|
Returns: lower byte: received byte from ringbuffer
|
||||||
|
higher byte: last receive error
|
||||||
|
**************************************************************************/
|
||||||
|
unsigned int uart_getc(void)
|
||||||
{
|
{
|
||||||
while (!(UCSRA & (1<<RXC))); // warten bis Zeichen verfuegbar
|
unsigned char tmptail;
|
||||||
return UDR; // Zeichen aus UDR zurueckgeben
|
unsigned char data;
|
||||||
}
|
|
||||||
#endif // UART_INTERRUPT
|
|
||||||
|
|
||||||
// returns 1 on success
|
|
||||||
#ifdef UART_INTERRUPT
|
if ( UART_RxHead == UART_RxTail ) {
|
||||||
char uart_getc_nb(char *c)
|
return UART_NO_DATA; /* no data available */
|
||||||
|
}
|
||||||
|
|
||||||
|
/* calculate /store buffer index */
|
||||||
|
tmptail = (UART_RxTail + 1) & UART_RX_BUFFER_MASK;
|
||||||
|
UART_RxTail = tmptail;
|
||||||
|
|
||||||
|
/* get data from receive buffer */
|
||||||
|
data = UART_RxBuf[tmptail];
|
||||||
|
|
||||||
|
data = (UART_LastRxError << 8) + data;
|
||||||
|
UART_LastRxError = 0;
|
||||||
|
return data;
|
||||||
|
|
||||||
|
}/* uart_getc */
|
||||||
|
|
||||||
|
|
||||||
|
/*************************************************************************
|
||||||
|
Function: uart_putc()
|
||||||
|
Purpose: write byte to ringbuffer for transmitting via UART
|
||||||
|
Input: byte to be transmitted
|
||||||
|
Returns: none
|
||||||
|
**************************************************************************/
|
||||||
|
void uart_putc(unsigned char data)
|
||||||
{
|
{
|
||||||
if (rxhead==rxtail) return 0;
|
unsigned char tmphead;
|
||||||
|
|
||||||
*c = *rxtail;
|
|
||||||
if (++rxtail == (rxbuf + UART_RXBUFSIZE)) rxtail = rxbuf;
|
|
||||||
|
|
||||||
return 1;
|
tmphead = (UART_TxHead + 1) & UART_TX_BUFFER_MASK;
|
||||||
}
|
|
||||||
#else // WITHOUT INTERRUPT
|
while ( tmphead == UART_TxTail ){
|
||||||
char uart_getc_nb(char *c)
|
;/* wait for free space in buffer */
|
||||||
|
}
|
||||||
|
|
||||||
|
UART_TxBuf[tmphead] = data;
|
||||||
|
UART_TxHead = tmphead;
|
||||||
|
|
||||||
|
/* enable UDRE interrupt */
|
||||||
|
UART0_CONTROL |= _BV(UART0_UDRIE);
|
||||||
|
|
||||||
|
}/* uart_putc */
|
||||||
|
|
||||||
|
|
||||||
|
/*************************************************************************
|
||||||
|
Function: uart_puts()
|
||||||
|
Purpose: transmit string to UART
|
||||||
|
Input: string to be transmitted
|
||||||
|
Returns: none
|
||||||
|
**************************************************************************/
|
||||||
|
void uart_puts(const char *s )
|
||||||
{
|
{
|
||||||
if (UCSRA & (1<<RXC)) { // Zeichen verfuegbar
|
while (*s)
|
||||||
*c = UDR;
|
uart_putc(*s++);
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
return 0;
|
}/* uart_puts */
|
||||||
|
|
||||||
|
|
||||||
|
/*************************************************************************
|
||||||
|
Function: uart_puts_p()
|
||||||
|
Purpose: transmit string from program memory to UART
|
||||||
|
Input: program memory string to be transmitted
|
||||||
|
Returns: none
|
||||||
|
**************************************************************************/
|
||||||
|
void uart_puts_p(const char *progmem_s )
|
||||||
|
{
|
||||||
|
register char c;
|
||||||
|
|
||||||
|
while ( (c = pgm_read_byte(progmem_s++)) )
|
||||||
|
uart_putc(c);
|
||||||
|
|
||||||
|
}/* uart_puts_p */
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* these functions are only for ATmegas with two USART
|
||||||
|
*/
|
||||||
|
#if defined( ATMEGA_USART1 )
|
||||||
|
|
||||||
|
ISR(UART1_RECEIVE_INTERRUPT)
|
||||||
|
/*************************************************************************
|
||||||
|
Function: UART1 Receive Complete interrupt
|
||||||
|
Purpose: called when the UART1 has received a character
|
||||||
|
**************************************************************************/
|
||||||
|
{
|
||||||
|
unsigned char tmphead;
|
||||||
|
unsigned char data;
|
||||||
|
unsigned char usr;
|
||||||
|
unsigned char lastRxError;
|
||||||
|
|
||||||
|
|
||||||
|
/* read UART status register and UART data register */
|
||||||
|
usr = UART1_STATUS;
|
||||||
|
data = UART1_DATA;
|
||||||
|
|
||||||
|
/* */
|
||||||
|
lastRxError = (usr & (_BV(FE1)|_BV(DOR1)) );
|
||||||
|
|
||||||
|
/* calculate buffer index */
|
||||||
|
tmphead = ( UART1_RxHead + 1) & UART_RX_BUFFER_MASK;
|
||||||
|
|
||||||
|
if ( tmphead == UART1_RxTail ) {
|
||||||
|
/* error: receive buffer overflow */
|
||||||
|
lastRxError = UART_BUFFER_OVERFLOW >> 8;
|
||||||
|
}else{
|
||||||
|
/* store new index */
|
||||||
|
UART1_RxHead = tmphead;
|
||||||
|
/* store received data in buffer */
|
||||||
|
UART1_RxBuf[tmphead] = data;
|
||||||
|
}
|
||||||
|
UART1_LastRxError |= lastRxError;
|
||||||
}
|
}
|
||||||
#endif // UART_INTERRUPT
|
|
||||||
|
|
||||||
|
ISR(UART1_TRANSMIT_INTERRUPT)
|
||||||
|
/*************************************************************************
|
||||||
|
Function: UART1 Data Register Empty interrupt
|
||||||
|
Purpose: called when the UART1 is ready to transmit the next byte
|
||||||
|
**************************************************************************/
|
||||||
|
{
|
||||||
|
unsigned char tmptail;
|
||||||
|
|
||||||
|
|
||||||
|
if ( UART1_TxHead != UART1_TxTail) {
|
||||||
|
/* calculate and store new buffer index */
|
||||||
|
tmptail = (UART1_TxTail + 1) & UART_TX_BUFFER_MASK;
|
||||||
|
UART1_TxTail = tmptail;
|
||||||
|
/* get one byte from buffer and write it to UART */
|
||||||
|
UART1_DATA = UART1_TxBuf[tmptail]; /* start transmission */
|
||||||
|
}else{
|
||||||
|
/* tx buffer empty, disable UDRE interrupt */
|
||||||
|
UART1_CONTROL &= ~_BV(UART1_UDRIE);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*************************************************************************
|
||||||
|
Function: uart1_init()
|
||||||
|
Purpose: initialize UART1 and set baudrate
|
||||||
|
Input: baudrate using macro UART_BAUD_SELECT()
|
||||||
|
Returns: none
|
||||||
|
**************************************************************************/
|
||||||
|
void uart1_init(unsigned int baudrate)
|
||||||
|
{
|
||||||
|
UART1_TxHead = 0;
|
||||||
|
UART1_TxTail = 0;
|
||||||
|
UART1_RxHead = 0;
|
||||||
|
UART1_RxTail = 0;
|
||||||
|
|
||||||
|
|
||||||
|
/* Set baud rate */
|
||||||
|
if ( baudrate & 0x8000 )
|
||||||
|
{
|
||||||
|
UART1_STATUS = (1<<U2X1); //Enable 2x speed
|
||||||
|
baudrate &= ~0x8000;
|
||||||
|
}
|
||||||
|
UBRR1H = (unsigned char)(baudrate>>8);
|
||||||
|
UBRR1L = (unsigned char) baudrate;
|
||||||
|
|
||||||
|
/* Enable USART receiver and transmitter and receive complete interrupt */
|
||||||
|
UART1_CONTROL = _BV(RXCIE1)|(1<<RXEN1)|(1<<TXEN1);
|
||||||
|
|
||||||
|
/* Set frame format: asynchronous, 8data, no parity, 1stop bit */
|
||||||
|
#ifdef URSEL1
|
||||||
|
UCSR1C = (1<<URSEL1)|(3<<UCSZ10);
|
||||||
|
#else
|
||||||
|
UCSR1C = (3<<UCSZ10);
|
||||||
|
#endif
|
||||||
|
}/* uart_init */
|
||||||
|
|
||||||
|
|
||||||
|
/*************************************************************************
|
||||||
|
Function: uart1_getc()
|
||||||
|
Purpose: return byte from ringbuffer
|
||||||
|
Returns: lower byte: received byte from ringbuffer
|
||||||
|
higher byte: last receive error
|
||||||
|
**************************************************************************/
|
||||||
|
unsigned int uart1_getc(void)
|
||||||
|
{
|
||||||
|
unsigned char tmptail;
|
||||||
|
unsigned char data;
|
||||||
|
|
||||||
|
|
||||||
|
if ( UART1_RxHead == UART1_RxTail ) {
|
||||||
|
return UART_NO_DATA; /* no data available */
|
||||||
|
}
|
||||||
|
|
||||||
|
/* calculate /store buffer index */
|
||||||
|
tmptail = (UART1_RxTail + 1) & UART_RX_BUFFER_MASK;
|
||||||
|
UART1_RxTail = tmptail;
|
||||||
|
|
||||||
|
/* get data from receive buffer */
|
||||||
|
data = UART1_RxBuf[tmptail];
|
||||||
|
|
||||||
|
data = (UART1_LastRxError << 8) + data;
|
||||||
|
UART1_LastRxError = 0;
|
||||||
|
return data;
|
||||||
|
|
||||||
|
}/* uart1_getc */
|
||||||
|
|
||||||
|
|
||||||
|
/*************************************************************************
|
||||||
|
Function: uart1_putc()
|
||||||
|
Purpose: write byte to ringbuffer for transmitting via UART
|
||||||
|
Input: byte to be transmitted
|
||||||
|
Returns: none
|
||||||
|
**************************************************************************/
|
||||||
|
void uart1_putc(unsigned char data)
|
||||||
|
{
|
||||||
|
unsigned char tmphead;
|
||||||
|
|
||||||
|
|
||||||
|
tmphead = (UART1_TxHead + 1) & UART_TX_BUFFER_MASK;
|
||||||
|
|
||||||
|
while ( tmphead == UART1_TxTail ){
|
||||||
|
;/* wait for free space in buffer */
|
||||||
|
}
|
||||||
|
|
||||||
|
UART1_TxBuf[tmphead] = data;
|
||||||
|
UART1_TxHead = tmphead;
|
||||||
|
|
||||||
|
/* enable UDRE interrupt */
|
||||||
|
UART1_CONTROL |= _BV(UART1_UDRIE);
|
||||||
|
|
||||||
|
}/* uart1_putc */
|
||||||
|
|
||||||
|
|
||||||
|
/*************************************************************************
|
||||||
|
Function: uart1_puts()
|
||||||
|
Purpose: transmit string to UART1
|
||||||
|
Input: string to be transmitted
|
||||||
|
Returns: none
|
||||||
|
**************************************************************************/
|
||||||
|
void uart1_puts(const char *s )
|
||||||
|
{
|
||||||
|
while (*s)
|
||||||
|
uart1_putc(*s++);
|
||||||
|
|
||||||
|
}/* uart1_puts */
|
||||||
|
|
||||||
|
|
||||||
|
/*************************************************************************
|
||||||
|
Function: uart1_puts_p()
|
||||||
|
Purpose: transmit string from program memory to UART1
|
||||||
|
Input: program memory string to be transmitted
|
||||||
|
Returns: none
|
||||||
|
**************************************************************************/
|
||||||
|
void uart1_puts_p(const char *progmem_s )
|
||||||
|
{
|
||||||
|
register char c;
|
||||||
|
|
||||||
|
while ( (c = pgm_read_byte(progmem_s++)) )
|
||||||
|
uart1_putc(c);
|
||||||
|
|
||||||
|
}/* uart1_puts_p */
|
||||||
|
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
|
||||||
232
src/uart/uart.h
232
src/uart/uart.h
|
|
@ -1,35 +1,219 @@
|
||||||
#ifndef UART_H
|
#ifndef UART_H
|
||||||
#define UART_H
|
#define UART_H
|
||||||
|
/************************************************************************
|
||||||
|
Title: Interrupt UART library with receive/transmit circular buffers
|
||||||
|
Author: Peter Fleury <pfleury@gmx.ch> http://jump.to/fleury
|
||||||
|
File: $Id: uart.h,v 1.12 2012/11/19 19:52:27 peter Exp $
|
||||||
|
Software: AVR-GCC 4.1, AVR Libc 1.4
|
||||||
|
Hardware: any AVR with built-in UART, tested on AT90S8515 & ATmega8 at 4 Mhz
|
||||||
|
License: GNU General Public License
|
||||||
|
Usage: see Doxygen manual
|
||||||
|
|
||||||
|
LICENSE:
|
||||||
|
Copyright (C) 2006 Peter Fleury
|
||||||
|
|
||||||
|
This program is free software; you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation; either version 2 of the License, or
|
||||||
|
any later version.
|
||||||
|
|
||||||
|
This program is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
************************************************************************/
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* UART Library
|
* @defgroup pfleury_uart UART Library
|
||||||
|
* @code #include <uart.h> @endcode
|
||||||
*
|
*
|
||||||
* #define F_CPU 16000000 // Oszillator-Frequenz in Hz
|
* @brief Interrupt UART library using the built-in UART with transmit and
|
||||||
* #define UART_INTERRUPT 1
|
* receive circular buffers.
|
||||||
* #define UART_BAUD_RATE 19200
|
|
||||||
* #define UART_RXBUFSIZE 16
|
|
||||||
* #define UART_TXBUFSIZE 16
|
|
||||||
* #define UART_LINE_BUFFER_SIZE 40
|
|
||||||
* #define UART_LEDS // LED1 and LED2 toggle on tx and rx interrupt
|
|
||||||
*
|
*
|
||||||
|
* This library can be used to transmit and receive data through the built in
|
||||||
|
* UART.
|
||||||
|
*
|
||||||
|
* An interrupt is generated when the UART has finished transmitting or
|
||||||
|
* receiving a byte. The interrupt handling routines use circular buffers
|
||||||
|
* for buffering received and transmitted data.
|
||||||
|
*
|
||||||
|
* The UART_RX_BUFFER_SIZE and UART_TX_BUFFER_SIZE constants define the size of
|
||||||
|
* the circular buffers in bytes. Note that these constants must be a power of
|
||||||
|
* 2. You may need to adapt this constants to your target and your application
|
||||||
|
* by adding CDEFS += -DUART_RX_BUFFER_SIZE=nn -DUART_RX_BUFFER_SIZE=nn to your
|
||||||
|
* Makefile.
|
||||||
|
*
|
||||||
|
* @note Based on Atmel Application Note AVR306
|
||||||
|
* @author Peter Fleury pfleury@gmx.ch http://jump.to/fleury
|
||||||
*/
|
*/
|
||||||
|
|
||||||
#include <inttypes.h>
|
/**@{*/
|
||||||
#include <avr/pgmspace.h>
|
|
||||||
|
|
||||||
void uart_init();
|
|
||||||
|
|
||||||
void uart_putc(char c);
|
|
||||||
void uart_putstr(char * str);
|
|
||||||
void uart_putstr_P(PGM_P str);
|
|
||||||
void uart_hexdump(char *buf, int len);
|
|
||||||
|
|
||||||
char uart_getc();
|
|
||||||
char uart_getc_nb(char *c); // returns 1 on success
|
|
||||||
|
|
||||||
//get one Cariage return terminated line
|
|
||||||
//echo charakters back on Uart
|
|
||||||
//returns buffer with zero terminated line on success, 0 pointer otherwise
|
|
||||||
char * uart_getline_nb();
|
|
||||||
|
|
||||||
|
#if (__GNUC__ * 100 + __GNUC_MINOR__) < 304
|
||||||
|
#error "This library requires AVR-GCC 3.4 or later, update to newer AVR-GCC compiler !"
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* constants and macros
|
||||||
|
*/
|
||||||
|
|
||||||
|
/** @brief UART Baudrate Expression
|
||||||
|
* @param xtalcpu system clock in Mhz, e.g. 4000000UL for 4Mhz
|
||||||
|
* @param baudrate baudrate in bps, e.g. 1200, 2400, 9600
|
||||||
|
*/
|
||||||
|
#define UART_BAUD_SELECT(baudRate,xtalCpu) \
|
||||||
|
(((xtalCpu) + 8UL * (baudRate)) / (16UL * (baudRate)) -1UL)
|
||||||
|
|
||||||
|
/** @brief UART Baudrate Expression for ATmega double speed mode
|
||||||
|
* @param xtalcpu system clock in Mhz, e.g. 4000000UL for 4Mhz
|
||||||
|
* @param baudrate baudrate in bps, e.g. 1200, 2400, 9600
|
||||||
|
*/
|
||||||
|
#define UART_BAUD_SELECT_DOUBLE_SPEED(baudRate,xtalCpu) \
|
||||||
|
(((((xtalCpu) + 4UL * (baudRate)) / (8UL * (baudRate)) -1UL)) | 0x8000)
|
||||||
|
|
||||||
|
|
||||||
|
/** Size of the circular receive buffer, must be power of 2 */
|
||||||
|
#ifndef UART_RX_BUFFER_SIZE
|
||||||
|
#define UART_RX_BUFFER_SIZE 32
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/** Size of the circular transmit buffer, must be power of 2 */
|
||||||
|
#ifndef UART_TX_BUFFER_SIZE
|
||||||
|
#define UART_TX_BUFFER_SIZE 32
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/* test if the size of the circular buffers fits into SRAM */
|
||||||
|
#if ( (UART_RX_BUFFER_SIZE+UART_TX_BUFFER_SIZE) >= (RAMEND-0x60 ) ) && defined __AVR
|
||||||
|
#error "size of UART_RX_BUFFER_SIZE + UART_TX_BUFFER_SIZE larger than size of SRAM"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/*
|
||||||
|
** high byte error return code of uart_getc()
|
||||||
|
*/
|
||||||
|
#define UART_FRAME_ERROR 0x1000 /* Framing Error by UART */
|
||||||
|
#define UART_OVERRUN_ERROR 0x0800 /* Overrun condition by UART */
|
||||||
|
#define UART_PARITY_ERROR 0x0400 /* Parity Error by UART */
|
||||||
|
#define UART_BUFFER_OVERFLOW 0x0200 /* receive ringbuffer overflow */
|
||||||
|
#define UART_NO_DATA 0x0100 /* no receive data available */
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
** function prototypes
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
@brief Initialize UART and set baudrate
|
||||||
|
@param baudrate Specify baudrate using macro UART_BAUD_SELECT()
|
||||||
|
@return none
|
||||||
|
*/
|
||||||
|
extern void uart_init(unsigned int baudrate);
|
||||||
|
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Get received byte from ringbuffer
|
||||||
|
*
|
||||||
|
* Returns in the lower byte the received character and in the
|
||||||
|
* higher byte the last receive error.
|
||||||
|
* UART_NO_DATA is returned when no data is available.
|
||||||
|
*
|
||||||
|
* @param void
|
||||||
|
* @return lower byte: received byte from ringbuffer
|
||||||
|
* @return higher byte: last receive status
|
||||||
|
* - \b 0 successfully received data from UART
|
||||||
|
* - \b UART_NO_DATA
|
||||||
|
* <br>no receive data available
|
||||||
|
* - \b UART_BUFFER_OVERFLOW
|
||||||
|
* <br>Receive ringbuffer overflow.
|
||||||
|
* We are not reading the receive buffer fast enough,
|
||||||
|
* one or more received character have been dropped
|
||||||
|
* - \b UART_OVERRUN_ERROR
|
||||||
|
* <br>Overrun condition by UART.
|
||||||
|
* A character already present in the UART UDR register was not read
|
||||||
|
* by the interrupt handler before the next character arrived,
|
||||||
|
* one or more received characters have been dropped.
|
||||||
|
* - \b UART_FRAME_ERROR
|
||||||
|
* <br>Framing Error by UART
|
||||||
|
*/
|
||||||
|
extern unsigned int uart_getc(void);
|
||||||
|
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Put byte to ringbuffer for transmitting via UART
|
||||||
|
* @param data byte to be transmitted
|
||||||
|
* @return none
|
||||||
|
*/
|
||||||
|
extern void uart_putc(unsigned char data);
|
||||||
|
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Put string to ringbuffer for transmitting via UART
|
||||||
|
*
|
||||||
|
* The string is buffered by the uart library in a circular buffer
|
||||||
|
* and one character at a time is transmitted to the UART using interrupts.
|
||||||
|
* Blocks if it can not write the whole string into the circular buffer.
|
||||||
|
*
|
||||||
|
* @param s string to be transmitted
|
||||||
|
* @return none
|
||||||
|
*/
|
||||||
|
extern void uart_puts(const char *s );
|
||||||
|
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Put string from program memory to ringbuffer for transmitting via
|
||||||
|
* UART.
|
||||||
|
*
|
||||||
|
* The string is buffered by the uart library in a circular buffer
|
||||||
|
* and one character at a time is transmitted to the UART using interrupts.
|
||||||
|
* Blocks if it can not write the whole string into the circular buffer.
|
||||||
|
*
|
||||||
|
* @param s program memory string to be transmitted
|
||||||
|
* @return none
|
||||||
|
* @see uart_puts_P
|
||||||
|
*/
|
||||||
|
extern void uart_puts_p(const char *s );
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Macro to automatically put a string constant into program memory
|
||||||
|
*/
|
||||||
|
#define uart_puts_P(__s) uart_puts_p(PSTR(__s))
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
/** @brief Initialize USART1 (only available on selected ATmegas)
|
||||||
|
* @see uart_init
|
||||||
|
*/
|
||||||
|
extern void uart1_init(unsigned int baudrate);
|
||||||
|
|
||||||
|
/** @brief Get received byte of USART1 from ringbuffer (only available on
|
||||||
|
* selected ATmega)
|
||||||
|
* @see uart_getc
|
||||||
|
*/
|
||||||
|
extern unsigned int uart1_getc(void);
|
||||||
|
|
||||||
|
/** @brief Put byte to ringbuffer for transmitting via USART1 (only available
|
||||||
|
* on selected ATmega)
|
||||||
|
* @see uart_putc
|
||||||
|
*/
|
||||||
|
extern void uart1_putc(unsigned char data);
|
||||||
|
|
||||||
|
/** @brief Put string to ringbuffer for transmitting via USART1 (only available
|
||||||
|
* on selected ATmega)
|
||||||
|
* @see uart_puts
|
||||||
|
*/
|
||||||
|
extern void uart1_puts(const char *s );
|
||||||
|
|
||||||
|
/** @brief Put string from program memory to ringbuffer for transmitting via
|
||||||
|
* USART1 (only available on selected ATmega)
|
||||||
|
* @see uart_puts_p
|
||||||
|
*/
|
||||||
|
extern void uart1_puts_p(const char *s );
|
||||||
|
|
||||||
|
/** @brief Macro to automatically put a string constant into program memory */
|
||||||
|
#define uart1_puts_P(__s) uart1_puts_p(PSTR(__s))
|
||||||
|
|
||||||
|
/**@}*/
|
||||||
|
|
||||||
|
#endif // UART_H
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,114 @@
|
||||||
|
#include <stdint.h>
|
||||||
|
#include <string.h>
|
||||||
|
#include <ctype.h>
|
||||||
|
#include <stdbool.h>
|
||||||
|
#include <setjmp.h>
|
||||||
|
#include <avr/pgmspace.h>
|
||||||
|
#include "../config.h"
|
||||||
|
#include "../borg_hw/borg_hw.h"
|
||||||
|
#include "../scrolltext/scrolltext.h"
|
||||||
|
#include "uart.h"
|
||||||
|
#include "uart_commands.h"
|
||||||
|
|
||||||
|
#define UART_SCROLL_BUFFER_SIZE (SCROLLTEXT_BUFFER_SIZE + 8)
|
||||||
|
char g_rx_buffer[UART_SCROLL_BUFFER_SIZE];
|
||||||
|
uint8_t g_rx_index;
|
||||||
|
|
||||||
|
extern jmp_buf newmode_jmpbuf;
|
||||||
|
volatile unsigned char mode;
|
||||||
|
|
||||||
|
void uartcmd_clear_buffer(void) {
|
||||||
|
char *p = &g_rx_buffer[0];
|
||||||
|
for (uint8_t i = UART_SCROLL_BUFFER_SIZE; i--;) {
|
||||||
|
*p++ = 0;
|
||||||
|
}
|
||||||
|
g_rx_index = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
char const UART_STR_PROMPT[] PROGMEM = "\r\n> ";
|
||||||
|
char const UART_STR_ERROR[] PROGMEM = "\r\ntransmission error";
|
||||||
|
char const UART_STR_UNKNOWN[] PROGMEM = "\r\nunknown command";
|
||||||
|
char const UART_STR_TOOLONG[] PROGMEM = "\r\ncommand to long";
|
||||||
|
char const UART_STR_HELP[] PROGMEM = "\r\nhelp msg next prev reset scroll";
|
||||||
|
|
||||||
|
char const UART_CMD_HELP[] PROGMEM = "help";
|
||||||
|
char const UART_CMD_MSG[] PROGMEM = "msg ";
|
||||||
|
char const UART_CMD_NEXT[] PROGMEM = "next";
|
||||||
|
char const UART_CMD_PREV[] PROGMEM = "prev";
|
||||||
|
char const UART_CMD_RESET[] PROGMEM = "reset";
|
||||||
|
char const UART_CMD_SCROLL[] PROGMEM = "scroll ";
|
||||||
|
|
||||||
|
bool uartcmd_read_until_enter(void) {
|
||||||
|
while (g_rx_index < (UART_SCROLL_BUFFER_SIZE - 1)) {
|
||||||
|
int uart_result = uart_getc();
|
||||||
|
|
||||||
|
switch (uart_result & 0xFF00u) {
|
||||||
|
case 0:
|
||||||
|
if (!(uart_result == '\r' || uart_result == '\n')) {
|
||||||
|
g_rx_buffer[g_rx_index++] = uart_result;
|
||||||
|
uart_putc(uart_result);
|
||||||
|
} else {
|
||||||
|
g_rx_buffer[g_rx_index++] = 0;
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
|
||||||
|
case UART_FRAME_ERROR:
|
||||||
|
case UART_OVERRUN_ERROR:
|
||||||
|
case UART_PARITY_ERROR:
|
||||||
|
case UART_BUFFER_OVERFLOW:
|
||||||
|
uartcmd_clear_buffer();
|
||||||
|
uart_puts_p(UART_STR_ERROR);
|
||||||
|
uart_puts_p(UART_STR_PROMPT);
|
||||||
|
break;
|
||||||
|
|
||||||
|
case UART_NO_DATA:
|
||||||
|
default:
|
||||||
|
return false;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (g_rx_index >= (UART_SCROLL_BUFFER_SIZE - 1)) {
|
||||||
|
uartcmd_clear_buffer();
|
||||||
|
uart_puts_p(UART_STR_TOOLONG);
|
||||||
|
uart_puts_p(UART_STR_PROMPT);
|
||||||
|
}
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
void uartcmd_process(void) {
|
||||||
|
if (uartcmd_read_until_enter()) {
|
||||||
|
if (!strncmp_P(g_rx_buffer, UART_CMD_HELP, 4)) {
|
||||||
|
uart_puts_p(UART_STR_HELP);
|
||||||
|
} else if (!strncmp_P(g_rx_buffer, UART_CMD_MSG, 4)) {
|
||||||
|
g_rx_buffer[1] = '<';
|
||||||
|
g_rx_buffer[2] = '/';
|
||||||
|
g_rx_buffer[3] = '#';
|
||||||
|
// text must not be longer than the scroll text buffer
|
||||||
|
g_rx_buffer[1 + SCROLLTEXT_BUFFER_SIZE - 1] = 0;
|
||||||
|
scrolltext(&g_rx_buffer[1]);
|
||||||
|
} else if (!strncmp_P(g_rx_buffer, UART_CMD_NEXT, 4)) {
|
||||||
|
uart_puts_p(UART_STR_PROMPT);
|
||||||
|
uartcmd_clear_buffer();
|
||||||
|
longjmp(newmode_jmpbuf, mode);
|
||||||
|
} else if (!strncmp_P(g_rx_buffer, UART_CMD_PREV, 4)) {
|
||||||
|
uart_puts_p(UART_STR_PROMPT);
|
||||||
|
uartcmd_clear_buffer();
|
||||||
|
if (mode > 1) {
|
||||||
|
longjmp(newmode_jmpbuf, mode - 2);
|
||||||
|
}
|
||||||
|
} else if (!strncmp_P(g_rx_buffer, UART_CMD_RESET,
|
||||||
|
UART_SCROLL_BUFFER_SIZE)) {
|
||||||
|
timer0_off();
|
||||||
|
} else if (!strncmp_P(g_rx_buffer, UART_CMD_SCROLL, 7)) {
|
||||||
|
// text must not be longer than the scroll text buffer
|
||||||
|
g_rx_buffer[7 + SCROLLTEXT_BUFFER_SIZE - 1] = 0;
|
||||||
|
scrolltext(&g_rx_buffer[7]);
|
||||||
|
} else {
|
||||||
|
uart_puts_p(UART_STR_UNKNOWN);
|
||||||
|
}
|
||||||
|
uart_puts_p(UART_STR_PROMPT);
|
||||||
|
uartcmd_clear_buffer();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,13 @@
|
||||||
|
/*
|
||||||
|
* uart_commands.h
|
||||||
|
*
|
||||||
|
* Created on: 16.08.2014
|
||||||
|
* Author: chris
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef UART_COMMANDS_H_
|
||||||
|
#define UART_COMMANDS_H_
|
||||||
|
|
||||||
|
void uartcmd_process(void);
|
||||||
|
|
||||||
|
#endif /* UART_COMMANDS_H_ */
|
||||||
|
|
@ -19,6 +19,9 @@ extern jmp_buf newmode_jmpbuf;
|
||||||
# include "can/borg_can.h"
|
# include "can/borg_can.h"
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
|
#ifdef UART_SUPPORT
|
||||||
|
# include "uart/uart_commands.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
void wait(int ms){
|
void wait(int ms){
|
||||||
/* Always use Timer1 except for the Arduino/LoL Shield platform. */
|
/* Always use Timer1 except for the Arduino/LoL Shield platform. */
|
||||||
|
|
@ -41,6 +44,10 @@ void wait(int ms){
|
||||||
bcan_process_messages();
|
bcan_process_messages();
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
|
#ifdef UART_SUPPORT
|
||||||
|
uartcmd_process();
|
||||||
|
#endif
|
||||||
|
|
||||||
#ifdef RFM12_SUPPORT
|
#ifdef RFM12_SUPPORT
|
||||||
borg_rfm12_tick();
|
borg_rfm12_tick();
|
||||||
#endif
|
#endif
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue