Update documentation

src/main.c

@@ -18,14 +18,14 @@
 int Init(void)
 {
 	// MOSFETS control things like the heating element
-	// so this is the highest priority to initialize
+	// so they are the highest priority to initialize
 	// to a default state via MOS_Init().
 
 	MOS_Init();
 
 	// The serial interface is required for output
 	// functions like Info() and Error() and it uses
-	// IRQs so we need to initialize it as soon as
+	// IRQs, so we need to initialize it as soon as
 	// possible and make sure to enable interrupts.
 
 	USART_Init();
@@ -34,10 +34,9 @@ int Init(void)
 	Info("Initializing...");
 
 	// There is a possiblity to use interrupt signals
-	// for I2C communication but it requires to have
-	// one large routine for basically the whole I2C
-	// implementation. The blocking approach used right
-	// now is fine.
+	// for I2C communication but only as one large
+	// branching routine for the whole I2C system.
+	// The blocking approach used right now is fine.
 
 	I2C_Init();
 	PWM_Init();
@@ -47,9 +46,8 @@ int Init(void)
 
 	// Only FAN01 and FAN02 are receiving the correct
 	// frequency (25 KHz) right now. The 16-bit timer on
-	// the ATMega32A only has two outputs so it would
-	// require software PWM to have a variable frequency
-	// on pin PD7.
+	// the ATMega32A has two outputs so it would require
+	// software PWM to have a variable frequency on PD7.
 
 	// A simple implementation will take up around 30-50
 	// percent of CPU time. Faster approaches are quite
@@ -62,8 +60,8 @@ int Init(void)
 
 	// The I2C_SetChannel command changes the channel
 	// setting of the PCA9546 I2C multiplexer. Any
-	// AHT20 command after it will only be sent on
-	// the respective channel.
+	// command after it will be sent to the device
+	// listening on that channel.
 
 	I2C_SetChannel(AHT01);
 	I2C_AHT20_Init();