Check MCUCSR for WDRF flag only and add TODO

src/common/watchdog.c

@@ -74,8 +74,8 @@ bool WDT_HasTriggered(void)
 	// 7    6      5    4     3     2     1     0
 	// JTD  ISC2   –    JTRF  WDRF  BORF  EXTRF PORF 
 
-	// Is power-on reset flag not set?
-	isreset = ((MCUCSR & BIT(0)) == 0);
+	// Is watchdog reset flag set?
+	isreset = ((MCUCSR & BIT(3)) == 1);
 
 	// XXX: Reset flag detection should be a separate
 	// module to handle the different types.

src/main.c

@@ -10,13 +10,13 @@
 // TODO: Make sure wear leveling resets memory correctly.
 // TODO: Implement primary state machine for update loop.
 // TODO: Migrate to ATMega 1284P-PU for 2nd 16-bit timer.
-// TODO: Keep persistent TEMP and DEWP targets in EEPROM.
 // TODO: Check thermistor conversion results /w thermometer.
 // TODO: Implement optional CRC8 sensor measurement check.
 // TODO: Use 18.432MHz quarz crystal, burn required fuses.
 // TODO: Make sure nothing breaks with negative temperatures.
 // TODO: Write an improved command parser (low priority).
 // TODO: Proper error handling and recovery (after testing).
+// TODO: Check why the MCUCSR EXTRF reset flag is set.
 
 enum state_e
 {