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Adventurer
Adventurer
5,501 Views
Registered: ‎05-17-2015

critical failure with uart - need help!

Hello,

 

I opened before a long list of SR about UART16550 with microblaze.

The uart has some severe problems, which were not yet resolved.

I am using SDK 2014.4 .

On simple change of the uart provided example to send less buffer than sending we get that if:

XUartNs550_Recv(UartInstancePtr, RecvBufferPtr[UartDeviceId], TEST_RCV_BUFFER_SIZE);
XUartNs550_Send(UartInstancePtr, SendBuffer, TEST_SENT_BUFFER_SIZE);
 

than:

TotalSentCount = 0  <---- ?????????????????????????????
TotalRecievedCount =  TEST_SENT_BUFFER_SIZE 

I debugged but have no clue for this behaviour. 

We are taking this issue for a lonbg time now, can anyone please advise ???????????

Please advice , ASAP.

Regards,

Ran

 

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