#include #include //#include #include "avr/delay.h" #include "compiler.h" uint8_t c = 0; int main(void) { /* Initializes MCU, drivers and middleware */ cli(); atmel_start_init(); sei(); //PORTC_toggle_pin_level(3); /* Replace with your application code */ while (1) { //PORTC_toggle_pin_level(3); //while (!(USART0.STATUS & USART_DREIF_bm)); if(USART0.STATUS & USART_RXCIF_bm) { Status_toggle_level(); c = USART0_RXDATAL; } //USART0.TXDATAL = b; _delay_ms(20); } }