Add low-voltage warning blink

basic/basic.h

@@ -128,5 +128,6 @@ void delayms(uint32_t ms);
 
 // voltage.c
 void VoltageCheck(void);
+uint32_t GetVoltage(void);
 
 #endif

basic/voltage.c

@@ -2,9 +2,9 @@
 
 #include "basic/basic.h"
 
+uint32_t results=5000;
 
 void VoltageCheck(void){
-	uint32_t results;
 
 	results = adcRead(1);
 	results *= 10560;
@@ -18,3 +18,7 @@ void VoltageCheck(void){
 	    __asm volatile ("WFI");
     };
 };
+
+uint32_t GetVoltage(void){
+    return results;
+};

modules/default.c

@@ -1,4 +1,5 @@
 #include <sysinit.h>
+#include "basic/basic.h"
 
 /**************************************************************************/
 
@@ -15,6 +16,16 @@ void tick_default(void) {
         VoltageCheck();
         ctr=0;
     };
+    if(ctr%5==0){
+        if(GetVoltage()<3600){
+            IOCON_PIO1_11 = 0x0;
+            gpioSetDir(RB_LED3, gpioDirection_Output);
+            if( (ctr/5)%10 == 1 )
+                gpioSetValue (RB_LED3, 1);
+            else
+                gpioSetValue (RB_LED3, 0);
+        };
+    };
 
     return;
 };