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Thanks for the suggestion, I tried it but it didn't work...the debugger works just fine. However, the I/O on the eTPU UART simply appears dead. If I comment out the InitializeNetworkGDB, the eTPU UART works, but, of course, the debugger doesn't work. At a loss as to why the two should have any ...

Just read my earlier post and forgot to mention - it is a MOD5234. We have an RS-422 driver connected to the associated eTPU pins and it works just fine unless debugging is enabled - then no I/O. It is really difficult to debug the interface protocols and the flash file system configuration file ...

I apologize if this is in a forum somewhere - I did a search with no results.

In UserMain, using the following code.

InitializeStack();
if (EthernetIP == 0) GetDHCPAddress();
OSChangePrio(MAIN_PRIO);
EnableAutoUpdate();
EnableTaskMonitor();
// InitializeNetworkGDB();

eTPUInit();

m_diagFd ...