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hugogogo
2025-03-09 13:41:54 +01:00
parent 00f1670c14
commit df7d962c7e
1 changed files with 6 additions and 6 deletions
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12
module02/ex03/main.c
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@@ -36,12 +36,6 @@ void uart_tx(char c) {
UDR0 = (unsigned char) c; // 20.11.1 : Put data into buffer, UDRn – USART I/O Data Register (read and write) UDR0 = (unsigned char) c; // 20.11.1 : Put data into buffer, UDRn – USART I/O Data Register (read and write)
} }
ISR(USART_RX_vect) { // Table 12-7 : we select the code for USART Receive
// char received_char = uart_rx();
char received_char = UDR0; // Read received character
uart_tx(SWITCH_CASE(received_char)); // Toggle case and send back
}
// send back caracters received on serial port with case toggling, using interupt and empty infinite loop // send back caracters received on serial port with case toggling, using interupt and empty infinite loop
// `screen /dev/ttyUSB0 115200` // `screen /dev/ttyUSB0 115200`
int main() { int main() {
@@ -51,3 +45,9 @@ int main() {
while(1); while(1);
} }
ISR(USART_RX_vect) { // Table 12-7 : we select the code for USART Receive
// char received_char = uart_rx();
char received_char = UDR0; // Read received character
uart_tx(SWITCH_CASE(received_char)); // Toggle case and send back
}