Content originally posted in LPCWare by frankee on Mon Jun 29 07:44:16 MST 2015
Hi,
Thanks for the response.
I have added a 10K pull-up to one of the failed boards, and it has no effect: the pin is connected(shorted) to ground internally and the program boots to the boot loader.
We have made 1000's of boards without the pull-up, and no problems, the problem is only when we short the ISP to ground in a fixture for testing/development, and afterwards most of the boards experience the problem described.
Frank