I have an ADuC7023 evaluating board ---EVAL-ADUC7023QSPZ, when I'm writing the *.hex file, it shows can't connect with J-LINK. It was good when change the chip, it was damaged again after rewrite. Measured the P0.0 voltage, it's about 3.3V, and not in a serial download mode. J-FLASH has the tips as below:
“- Connecting ...
- ERROR: ADI system TAP: Could not read system TAP Id.
- ERROR: ADI system TAP: Could not read system TAP Id
For more details, pls look at the pictures!