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MQX won't detect UART data present

Question asked by Roy Johnson on Nov 16, 2015
Latest reply on Nov 17, 2015 by Roy Johnson



I'm using the _io_fstatus() function to wait for a byte to show up on ittyc: on a K11 part.  I checked the 'D' register and can see the byte is reaching the micro but for some reason the call to _io_fstatus() is never returning true.  I have tried this on other UARTs on the same part and it works great.  I was wondering if anyone has any ideas or a list of things to check in order for this method to work correctly.  This is MQX v4.01.


Thanks in advance!