Jump to reset vector when program exceeds specified watchdog timeout

src/bus/i2c.c

@@ -12,8 +12,9 @@
 #define TW_MR_SLA_NACK  0x48
 #define TW_MR_DATA_ACK  0x50
 
-// XXX: Handle interrupts in I2C_vect ISR? This may not
-// actually be much better than the blocking approach
+// XXX: Error handling and recovery without watchdog timer.
+// XXX: Implement I2C_vect ISR? This may not actually be
+// much better than the blocking approach.
 
 static void I2C_AHT20_Reset(void);
 static bool I2C_AHT20_IsCalibrated(void);

src/bus/mosfet.c

@@ -1,6 +1,9 @@
 #include "common.h"
 #include "bus/mosfet.h"
 
+// XXX: This might be too much specificity for something where
+// a generic digital output implementation would be adequate.
+
 int MOS_Init(void)
 {
 	// PB0: MOSFET #1 Peltier