AnsweredAssumed Answered

lpc1817 jtag disabled

Question asked by Jos Visser on Nov 21, 2018
Latest reply on Nov 22, 2018 by Jos Visser

I have a few boards with an LPC1817 on which the JTAG is no longer working.

I have checked all the conditions that may disable the JTAG.

- Pin 28 DBGEN is not connected and pulled up internally

- OTP bank 3 is not progammed

- The CRP is not active

- CREG5 is not loaded


Can anybody give me a hint why the JTAG stops working.

I have connected both LPC-Link2 and J-LinkPro without success.

I can only program through ISP.