Hi,
My UART interface RX stream is stuck and no new RX interrupt is received for any attempt to drive input.
I experience a UART overflow, caused by interrupt long latency, which leaves the system with no active interrupt but with a char in the buffer.
This prevents from new char to be received. the only thing that "releases" the UART interface is D read.
Following this read the interface is released and the RX flow runs once again.
The UART statuses doesn't apply to any reasonable cause.
See UART status log below:
4006A000: 00 36 00 2C C8 40 00 XX 00 00 08 00 00 00 00 AA
4006A010: 22 00 C5 00 00 01 00 AA 00 00 00 0A 00 01 00 00
4006A020: AA 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
4006A030: 00 00 AA AA AA AA AA AA AA AA
Please note that the XX located in 4006A007 is the D register. Once this address is called the block is released.
Tnx,
Gerry
