topic Debuger not working on LPC11U68 XPRESSO V2 REV C in LPC Microcontrollers

Debuger not working on LPC11U68 XPRESSO V2 REV C

lpcware — Wed, 15 Jun 2016 19:35:34 GMT

Content originally posted in LPCWare by bruce1 on Sun Aug 30 22:01:51 MST 2015
Just received 4 new LPC11U68 Xpresso V2 REV C boards and am unable to get the debugger to load program and start debug session. Have been using several (10) REV B boards with no problems. I can load the J-link software via the LPCScrypt successfully. I remove the jumper remove the USB reconnect start a debug session with IAR it finds the debugger but it is always seeing it as busy and times out. a reset does not help. Using IAR 7.4 latest addition. What is different with the debugger circuitry? has any one else seen this with the REV c boards?

Re: Debuger not working on LPC11U68 XPRESSO V2 REV C

lpcware — Wed, 15 Jun 2016 19:35:35 GMT

Content originally posted in LPCWare by lpcxpresso-support on Tue Sep 01 01:04:51 MST 2015
I wouldn't expect you to have issues with the newer LPCXpresso11U68 revision. But differences between the board revisions can be found at:

https://www.lpcware.com/LPCXpressoV2Boards

It might be worth trying to boot the target MCU into ISP mode before starting your debug session, in case there is something in the flash that is preventing the debug connection.

https://www.lpcware.com/content/faq/lpcxpresso/regaining-debug-access

Regards,
LPCXpresso Support

Re: Debuger not working on LPC11U68 XPRESSO V2 REV C

lpcware — Wed, 15 Jun 2016 19:35:36 GMT

Content originally posted in LPCWare by bruce1 on Tue Sep 01 09:25:58 MST 2015
Seems to be an issue with IAR 7.4 tried IAR 7.3 and it works fine.