90 lines
3.0 KiB
C++
90 lines
3.0 KiB
C++
/*****************************************************************************
|
|
* | File : DEV_Config.c
|
|
* | Author : Waveshare team
|
|
* | Function : Hardware underlying interface
|
|
* | Info :
|
|
*----------------
|
|
* | This version: V1.0
|
|
* | Date : 2020-02-19
|
|
* | Info :
|
|
#
|
|
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
# of this software and associated documnetation files (the "Software"), to deal
|
|
# in the Software without restriction, including without limitation the rights
|
|
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
# copies of the Software, and to permit persons to whom the Software is
|
|
# furished to do so, subject to the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be included in
|
|
# all copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
# THE SOFTWARE.
|
|
#
|
|
******************************************************************************/
|
|
#include "DEV_Config.h"
|
|
|
|
void GPIO_Config(void)
|
|
{
|
|
pinMode(EPD_BUSY_PIN, INPUT);
|
|
pinMode(EPD_RST_PIN , OUTPUT);
|
|
pinMode(EPD_DC_PIN , OUTPUT);
|
|
|
|
pinMode(EPD_SCK_PIN, OUTPUT);
|
|
pinMode(EPD_MOSI_PIN, OUTPUT);
|
|
pinMode(EPD_CS_PIN , OUTPUT);
|
|
|
|
digitalWrite(EPD_CS_PIN , HIGH);
|
|
digitalWrite(EPD_SCK_PIN, LOW);
|
|
}
|
|
/******************************************************************************
|
|
function: Module Initialize, the BCM2835 library and initialize the pins, SPI protocol
|
|
parameter:
|
|
Info:
|
|
******************************************************************************/
|
|
UBYTE DEV_Module_Init(void)
|
|
{
|
|
//gpio
|
|
GPIO_Config();
|
|
|
|
//serial printf
|
|
Serial.begin(115200);
|
|
|
|
// spi
|
|
// SPI.setDataMode(SPI_MODE0);
|
|
// SPI.setBitOrder(MSBFIRST);
|
|
// SPI.setClockDivider(SPI_CLOCK_DIV4);
|
|
// SPI.begin();
|
|
|
|
return 0;
|
|
}
|
|
|
|
/******************************************************************************
|
|
function:
|
|
SPI read and write
|
|
******************************************************************************/
|
|
void DEV_SPI_WriteByte(UBYTE data)
|
|
{
|
|
//SPI.beginTransaction(spi_settings);
|
|
digitalWrite(EPD_CS_PIN, GPIO_PIN_RESET);
|
|
|
|
for (int i = 0; i < 8; i++)
|
|
{
|
|
if ((data & 0x80) == 0) digitalWrite(EPD_MOSI_PIN, GPIO_PIN_RESET);
|
|
else digitalWrite(EPD_MOSI_PIN, GPIO_PIN_SET);
|
|
|
|
data <<= 1;
|
|
digitalWrite(EPD_SCK_PIN, GPIO_PIN_SET);
|
|
digitalWrite(EPD_SCK_PIN, GPIO_PIN_RESET);
|
|
}
|
|
|
|
//SPI.transfer(data);
|
|
digitalWrite(EPD_CS_PIN, GPIO_PIN_SET);
|
|
//SPI.endTransaction();
|
|
}
|