handling missing i2c state

include/main.h

@@ -5,7 +5,7 @@
 #include "drivers/serial.h"
 
 #define SW_VER "DF00"
-#define SW_DATE "13042020"
+#define SW_DATE "28042020"
 
 #define SYSTICK_TICKS_PER_SECONDS 100
 #define SYSTICK_TICKS_PERIOD 10

src/main.c

@@ -149,8 +149,7 @@ static void message_callback(struct AX25Msg *msg) {
 
 }
 
-int
-main(int argc, char* argv[]){
+int main(int argc, char* argv[]){
   // Send a greeting to the trace device (skipped on Release).
 //  trace_puts("Hello ARM World!");
 

system/src/drivers/i2c.c

@@ -146,7 +146,13 @@ void i2cVariableReset(void) {
 }
 
 void i2cIrqHandler(void) {
-	//	int i;
+
+		if ((I2C1->SR1 & I2C_SR1_STOPF) == I2C_SR1_STOPF) {
+			I2C1->SR1 &= (0xFFFFFFFF ^ I2C_SR1_STOPF);
+			i2cStop();
+
+			i2c_state = I2C_ERROR;
+		}
 		if ((I2C1->SR1 & I2C_SR1_SB) == I2C_SR1_SB && (i2c_txing == 1 || i2c_rxing == 1)) {
 		// After Start conditions have been transmitted.
 			I2C1->DR = i2c_remote_addr;				// Loading the slave address into data register