Clone InitI2c() as InitI2cV2() and use it in the LPTMR interrupt handler to avoid the hard fault.

left/src/i2c_watchdog.c

@@ -21,13 +21,14 @@ void InitI2cWatchdog(void)
 
 void I2C_WATCHDOG_LPTMR_HANDLER(void)
 {
-    I2cWatchdog_OuterCounter++;
     TEST_LED_TOGGLE();
+    I2cWatchdog_OuterCounter++;
 
-    if (I2C_Watchdog == prevWatchdogCounter && I2cWatchdog_OuterCounter>10) { // Restart I2C if there hasn't been any interrupt during 100 ms
+    if (I2C_Watchdog == prevWatchdogCounter) { // Restart I2C if there hasn't been any interrupt during 100 ms
+//        NVIC_SystemReset();
         I2cWatchdog_InnerCounter++;
         I2C_SlaveDeinit(I2C_BUS_BASEADDR);
-        //InitI2c();
+        InitI2cV2();
     }
 
     prevWatchdogCounter = I2C_Watchdog;

left/src/init_peripherals.c

@@ -75,6 +75,29 @@ void InitI2c(void) {
     I2C_SlaveTransferNonBlocking(I2C_BUS_BASEADDR, &slaveHandle, kI2C_SlaveCompletionEvent);
 }
 
+void InitI2cV2(void) {
+    port_pin_config_t pinConfig = {
+        .pullSelect = kPORT_PullUp,
+    };
+
+    CLOCK_EnableClock(I2C_BUS_SDA_CLOCK);
+    CLOCK_EnableClock(I2C_BUS_SCL_CLOCK);
+
+    pinConfig.mux = I2C_BUS_MUX;
+    PORT_SetPinConfig(I2C_BUS_SDA_PORT, I2C_BUS_SDA_PIN, &pinConfig);
+    PORT_SetPinConfig(I2C_BUS_SCL_PORT, I2C_BUS_SCL_PIN, &pinConfig);
+
+    i2c_slave_config_t slaveConfig;
+    i2c_slave_handle_t slaveHandle;
+
+    I2C_SlaveGetDefaultConfig(&slaveConfig);
+    slaveConfig.slaveAddress = I2C_ADDRESS_LEFT_KEYBOARD_HALF_FIRMWARE;
+    I2C_SlaveInit(I2C_BUS_BASEADDR, &slaveConfig);
+    I2C_SlaveTransferCreateHandle(I2C_BUS_BASEADDR, &slaveHandle, i2cSlaveCallback, NULL);
+    slaveHandle.eventMask |= kI2C_SlaveCompletionEvent;
+    I2C_SlaveTransferNonBlocking(I2C_BUS_BASEADDR, &slaveHandle, kI2C_SlaveCompletionEvent);
+}
+
 void InitLedDriver(void) {
     CLOCK_EnableClock(LED_DRIVER_SDB_CLOCK);
     PORT_SetPinMux(LED_DRIVER_SDB_PORT, LED_DRIVER_SDB_PIN, kPORT_MuxAsGpio);
@@ -89,5 +112,5 @@ void InitPeripherals(void)
     InitTestLed();
     LedPwm_Init();
     InitI2c();
-    //InitI2cWatchdog();
+    InitI2cWatchdog();
 }

left/src/init_peripherals.h

@@ -12,5 +12,6 @@
 
     void InitPeripherals(void);
     void InitI2c(void);
+    void InitI2cV2(void);
 
 #endif