Part Number:OMAP-L138
Hi,
I have customized OMAP-L138 PCB, initial testing for JTAG detection is working fine. I am able run/dump the codes, with VOICE Input (Sine Wave, 2kHz, 500mVpp) to CODEC>DSP LOOPBACK>CODEC the LOOPBACK VOICE Communication. was successful.
But after some iteration of above, all of a sudden: the OMAP Processor JTAG detection is failing (i.e., TMS Pin is showing Low Impedance ~ 40ohm)
After replacement with new OMAP Processor, board starts working, the same happened multiple times
Kindly assist for possible reasons of JTAG failure (TMS pin).
Reg,
Vinod