xod/uart/print
Writes a string bytes per byte into UART.
Possible errors:
— No bytes written. Probably due to buffer overflow
print
@/print
Writes a string bytes per byte into UART.
Possible errors:
— No bytes written. Probably due to buffer overflow
UART@/uart
An UART object
DATAstring
String to be sent into UART.
Could contain "\r\n" symbols to sent few lines.
SENDpulse
Triggers write of a string into UART
DONEpulse
Pulses when all String has been 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);
auto data = getValue<input_DATA>(ctx);
for (auto it = data.iterate(); it; ++it) {
bool err = !(uart->writeByte((char)*it));
if (err)
return raiseError(ctx);
}
if (!uart->writeByte('\r'))
return raiseError(ctx);
if (!uart->writeByte('\n'))
return raiseError(ctx);
uart->flush();
emitValue<output_DONE>(ctx, 1);
}
}