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9 years, 4 months ago.
Why does this not work? - Serial Question..
From the pc i send serial data to sINPUT and expect it to send that data out of sOUTPUT
Serial cant send getc
#include "mbed.h" Serial sOUTPUT(p9, p10); // tx, rx Serial sINPUT(USBTX, USBRX); // tx, rx int main() { sOutput.baud(921600); sINPUT.baud(921600); while (1) { sOutput.printf(sINPUT.getc()); } }
3 Answers
9 years, 4 months ago.
The first parameter to printf should be a string. You are giving it an int.
You could try sOutput.printf("%c", sINPUT.getc()), but it might be more efficient to use putc and getc instead. There is an example of doing this in the Handbook Serial page.
9 years, 4 months ago.
Use putc rather than printf. printf expects a char* and you're passing it a char.
The alternative would be sOutput.printf("%c",sINPUT.getc());
but that would be about 20 times slower than putc for no benefit