I recently modified a DEMO908QB8 board by removing the resident processor and adding a connector to an adapter board that allows me to program 'QC16' 20-pin SOIC and TSSOP devices. The SOIC devices consistently program without any problems. However, with the TSSOP devices, the programmer initially connects and reports that the device responded properly but always stops and reports that it "could not measure target baudrate."
Both sockets are correctly wired for the different pinouts of each package type and the signals to either device look fine on a scope.
Do the TSSOP devices require a different programming algorithm or is there something in the literature that I have overlooked?
Any additional insight will be greatly appreciated.