FreeCalypso > hg > fc-rfcal-tools
diff cmu200/sercmd.c @ 34:99f753d4ccaf
fc-cmu200d: check for errors on serial port write
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Tue, 23 May 2017 00:33:10 +0000 |
| parents | aeffe53e110d |
| children |
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--- a/cmu200/sercmd.c Tue May 23 00:12:10 2017 +0000 +++ b/cmu200/sercmd.c Tue May 23 00:33:10 2017 +0000 @@ -18,8 +18,15 @@ send_scpi_cmd(cmd) char *cmd; { + int cc, len; + printf("Command to CMU: %s", cmd); - write(target_fd, cmd, strlen(cmd)); + len = strlen(cmd); + cc = write(target_fd, cmd, len); + if (cc != len) { + perror("serial port write error"); + exit(1); + } } collect_instr_response()