Implement USART with bot RX and TX interrupts

src/main.c

@@ -1,78 +1,28 @@
 #include "common.h"
-#include "serial.h"
-#include "parser.h"
+#include "bus/usart.h"
+#include "bus/twi.h"
 
-bool running;
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#define Sleep(ms) _delay_ms(ms)
 
-int main(void)
+int main(int argc, char **argv)
 {
-	char ch;
-	unsigned long i = 1;
-
 	USART_Init();
-	Enable();
+	TWI_Init();
 
-	for (;;) {
-		// Process rx ring buffer
-		while ((ch = USART_GetChar())) {
-			CMD_Parse(ch);
-		}
+	sei();
 
-		Sleep(3000);
-		if (running) {
-			// TODO: Main program
-			if (i >= 99999) i = 1;
-			Info("Fetching sensors #%05lu...", i++);
-		}
-	}
+	Info("Initializing...");
+	Sleep(500);
+
+	// ADS1115 (ADC)
+	// PCA9546 (Multiplexer TWI)
+	// ATH20 (3x)
+	// BMP280 (3x)
+
+	UNUSED(argc);
+	UNUSED(argv);
 
 	return 0;
 }
-
-void Enable(void)
-{
-	Info("Parsed 'CMD_RUN' token.");
-	if (running == true) {
-		Error("Already running.");
-		return;
-	}
-	running = true;
-	SetStateFlag(running);
-	Info("Program started.");
-}
-
-void Disable(void)
-{
-	Info("Parsed 'CMD_STOP' token.");
-	if (running == false) {
-		Error("Already stopped.");
-		return;
-	}
-	running = false;
-	SetStateFlag(running);
-	Info("Program stopped.");
-}
-
-void SetTemp(long val)
-{
-	Info("Parsed 'CMD_SET_TEMP', VAL='%ld'.", val);
-	if (val < 10) {
-		Error("Given temperature is too low.");
-		return;
-	} else if (val > 40) {
-		Error("Given temperature is too high.");
-		return;
-	}
-}
-
-void SetDewp(long val)
-{
-	Info("Parsed 'CMD_SET_DEWP', VAL='%ld'.", val);
-	if (val < 10) {
-		Error("Given dew point is too low.");
-		return;
-	} else if (val > 80) {
-		Error("Given dew point is too high.");
-		return;
-	}
-}