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UART RX is stuck

Question asked by Ariela Blumer on May 22, 2016
Latest reply on May 24, 2016 by Ariela Blumer



I'm using MQX w/ K66.

I use UART to communicate with a peripheral and it happens that the task waiting for UART data is stuck for minutes. I monitor the peripheral lines and I'm certain that data is transmitted.

I verified UART interrupt is enabled so I would expect the scheduler to preempt the task on first data transmission.

Any idea what may be the reason for this behavior?