LPC Link failed to connect

lpcware · ‎06-15-2016

Content originally posted in LPCWare by Prithvi on Wed Dec 01 14:34:28 MST 2010
Hi everyone,
I was working on the the lpcxpresso 1343 board with it powering few leds and a MAX3232 level converter and everything was fine. This was in Vista SP2. And the next day I start again and I start getting the message saying:
"02: Failed on connect: Em(01). Cannot find selected MEM-AP (check target power):" I've attached the message pic.
I then installed lpc xpresso in XP. The DFU drivers were loaded sucessfully and the device was sucessfully recognized as a USB DFU device. But then debugging in lpcxpresso again gave the same message.

What could be the problem? Did I draw too much current and spoil the lpc1343?

Thanks in advance,
Prithvi

lpcware · ‎06-15-2016

Content originally posted in LPCWare by Prithvi on Sun Dec 05 22:11:54 MST 2010
Thanks, that solves that problem. :)

lpcware · ‎06-15-2016

Content originally posted in LPCWare by CodeRedSupport on Wed Dec 01 15:46:13 MST 2010

Quote: Prithvi

And the next day I start again and I start getting the message saying:

"02: Failed on connect: Em(01). Cannot find selected MEM-AP (check target power):" I've attached the message pic.
I then installed lpc xpresso in XP. The DFU drivers were loaded sucessfully and the device was sucessfully recognized as a USB DFU device. But then debugging in lpcxpresso again gave the same message.

What could be the problem? Did I draw too much current and spoil the lpc1343?

Prithvi

Did you modify any clock related setting? Before you got this message, the debug utility has done nothing more than talk with the debug port (DP) on the LPC1343. It is now attempting to access memory (i.e. MEM-AP), and the access is subject to the core clock speed.

To reconnect, you should boot the part into the ISP. This offers a known stable setup. See:

http://support.code-red-tech.com/CodeRedWiki/FailedToConnect