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MQX 4.0.2 Telnet Server missing characters?

Question asked by wcampbell on May 8, 2014
Latest reply on May 11, 2014 by Martin Latal

I'm attempting to use the built-in MQX 4.0.2 (RTCS v3.08.00) telnet server on a V4 Coldfire 54415, but I'm running into a problem where it's losing data. I'm creating my task with TELNETSRV_init, and it is launching the task when I initiate a telnet connection to the device. In my task, I'm doing a loop that calls fgetc to grab each character, but only every other character is actually hitting my handler. The missed characters are being echoed back to my terminal program, but I can't find the source of the echo (I have echo turned off, and the characters that do hit my code are correctly not sending an echo). I don't even see the missing characters hitting the _io_telnet_read in telnetio.c. Has anyone else seen this behavior? Any suggestions on where I can look to see what's grabbing these extra bytes?