I am not able to program the referenced device when using the XDS200 emulator but can when using the XDS510. The problem seems to be the XDS200 cannot pull the TRST line low enough to reset the device prior to programming. A check of the waveform on TRST shows the XDS200 only pulls the signal to ~1.7Vdc where the XDS510 pulls the signal to ~1.3Vdc. My design has a CPLD on the TRST line as well that provides a +3.3V logic level.
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