hi:
We have a self made dual C6747 board, and a seedxds560 emulator. The JTAG chain worked fine for quite a few days but now the CCS4.1.3 is not able to connect to the board any more, although nothing was changed.
the SC_ERR_PATH_BROKEN-233 error repeats to show. we have
1. rebulid the driver for the seedxds560 emulator for CCS4
2. test another board (same layout)
but the same broblem repeats.
we have measured the TDO pin, when the jtag head was not connceted to the board, is 0v ; after we connected the emulator , it seems the votage lever was 1.7V;
when we tried to connect the board, TDI signal varied from 0 to 3.3V, but the TDO varied just form 1.7 to 3.3V. is that ok?
The TDI is 3.3V, TCK is 500KHZ.
Can any one help? thanks a lot!