write-byte
xod/uart/write-byte
Writes a single byte in the UART.
Possible errors:
— No bytes written. Probably due to buffer overflow
write-byte
@/write-byte
Writes a single byte in the UART.
Possible errors:
— No bytes written. Probably due to buffer overflow
UART@/uart
An UART object
BYTEbyte
Byte to write
SENDpulse
Trigger writting of the byte
DONEpulse
Pulses when byte was successfully written
C++ implementation
#pragma XOD evaluate_on_pin disable
#pragma XOD evaluate_on_pin enable input_SEND
#pragma XOD error_raise enable
node {
void evaluate(Context ctx) {
if (!isInputDirty<input_SEND>(ctx))
return;
auto uart = getValue<input_UART>(ctx);
uint8_t byte = getValue<input_BYTE>(ctx);
bool res = uart->writeByte(byte);
if (res) {
emitValue<output_DONE>(ctx, 1);
} else {
raiseError(ctx); // No bytes written
}
}
}