Serial Port Question

[Vernon]

SerialClose(1);
fdserial = OpenSerial(1, 9600, 1 ,8, eParityNone);
SerialClose(0);
ffserial = OpenSerial(0, 115200, 1 ,8, eParityNone);

ReplaceStdio( 0, ffserial ); // stdin
ReplaceStdio( 1, fdserial ); // stdout
ReplaceStdio( 2, ffserial ); // stderr

I have the above. Is it possible to read from a port when it is not the stdio?

Thanks!

[rnixon]

Absolutely. I think the normal mode for any type of data port is to read/write directly. I only use stdio for debugging in release mode or status messages on a debug serial port.

[sblair]

Yes you can read/write to any serial port that you have opened an fd to regardless of the stdio settings. I use multiple serial ports all the time.

Scott

[pbreed]

functions are read
and write

read the header file

nburn\include\iosys.h



int read(int fd ,char * buf, int maxlen);
Where fd is the fd gotten from the serial open...
reads what is availible and returns.
If no data is availible it blocks until it gets at least one charactor...

If you need timeouts..
int ReadWithTimeout( int fd, char *buf, int nbytes, unsigned long timeout );


int write(int fd, const char * buf, int len);