Consolidate unfinished tasks and update documentation

src/bus/i2c.c

@@ -14,12 +14,6 @@
 #define TW_MR_SLA_NACK 0x48  // SLA+R transmitted, NACK received
 #define TW_MR_DATA_ACK 0x50  // Data received, ACK returned
 
-// TODO: Error handling and recovery besides watchdog timer.
-// TODO: Add more documentation from the atmel data sheet.
-// TODO: ADS1115 continuous mode instead of single-shot?
-// TODO: Implement TWI_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);
 static void  I2C_AHT20_Calibrate(void);

src/bus/pwm.c

@@ -1,8 +1,6 @@
 #include "common.h"
 #include "bus/pwm.h"
 
-// TODO: Add documentation for timer3: TCCR3A, TCCR3B, etc.
-
 int PWM_Init(void)
 {
 	// PD4: PWM NF-12 Fan Peltier Hot Side
@@ -102,7 +100,6 @@ void PWM_SetValue(int port, int value)
 	if (port != FAN01 && port != FAN02 && port != FAN03)
 		return; // Invalid port
 
-	// Workaround: Missing third 16-bit timer output
 	n = CLAMP(value, 100, 0) * PWM_CYCLE_TOP / 100.0f;
 
 	Info("Setting duty cycle for %s to %d/%d...",

src/common/parser.c

@@ -6,11 +6,6 @@
 
 #define CMD_MAX_LEN 128
 
-// TODO: Write documentation.
-// TODO: Reset command buffer on timeout.
-// TODO: Test with different RXBUF sizes.
-// TODO: Add commands update, start and stop.
-
 static char cmdbuf[CMD_MAX_LEN + 1];
 static char *tail = cmdbuf + CMD_MAX_LEN;
 static char *head = cmdbuf;

src/main.c

@@ -6,17 +6,6 @@
 
 #include <avr/interrupt.h>
 
-// TODO: Facilitate software updates over serial port.
-// TODO: Check parser and circular buffer for edge cases.
-// TODO: Implement command parser timeout for large input.
-// TODO: Config header for chip specifics like EEPROM size.
-// TODO: Check thermistor conversion results /w thermometer.
-// TODO: Implement primary state machine for update loop.
-// TODO: Use 18.432MHz quarz crystal, burn required fuses.
-// TODO: Implement optional CRC8 sensor measurement check.
-// TODO: Proper error handling and recovery (after testing).
-// TODO: Check why the MCUCSR EXTRF reset flag is set.
-
 enum state_e
 {
 	S_IDLE,