I purchased three ULINK2 adapter in the past year but they do not communicate with my target board. I tried two older ULINK adapters they work OK using the same target and JTAG cable.
Connection: PC > USB Cable > ULINK2 > 20-pin JTAG cable > 20-pin to 9pin Converter PCB > 9-pin JTAG cable > Target Board > ARM7 Processor
Target: ARM7 Processor STR710FZ2 (VCC is supplied from Target board)
Adapters: ULINK2 JTAG (VCC Jumper is set to ARM with f/w v2.03 & set to CMSIS-DAP boot mode)
OS Platform: Windows 10 Pro
Application: MDK uVision 5.38
Keil Pack: MDK ARM7/9 Legacy Device Support V5.25
Things I have tried that work using old ULINK2 adapter and do not work on three new ULINK2 adapters: