LPCXpresso IDEのトピックProblem to enter in ISP mode

Problem to enter in ISP mode

lpcware — Wed, 15 Jun 2016 23:33:17 GMT

Content originally posted in LPCWare by guillaumeL on Tue Oct 30 09:55:26 MST 2012
Hi,

I have a setup to enter in ISP mode set ISP to low & pulse a reset. It works fine the first time but if I want to redo that again it fails. It is impossible to enter in ISP mode. I have to unplug/plug the supply of the LPC1769 before enter again in the ISP mode. Is there any raison?

It is a big problem because I can't unplug/plug the power supply in my final setup. Do you have an idea?

Regards

Re: Problem to enter in ISP mode

lpcware — Wed, 15 Jun 2016 23:33:18 GMT

Content originally posted in LPCWare by Ex-Zero on Tue Oct 30 10:26:20 MST 2012

Quote: guillaumeL
Do you have an idea?

IAP 57 :eek:

Re: Problem to enter in ISP mode

lpcware — Wed, 15 Jun 2016 23:33:19 GMT

Content originally posted in LPCWare by guillaumeL on Wed Oct 31 14:02:06 MST 2012
Does it means I have to reinvoke the ISP (IAP 57) at the end of my code to give him the possibility to accept a new memory programmation if needed?

Regards

Re: Problem to enter in ISP mode

lpcware — Wed, 15 Jun 2016 23:33:19 GMT

Content originally posted in LPCWare by Ex-Zero on Wed Oct 31 18:11:10 MST 2012
UM10360:

Quote:
32.8.9 Re-invoke ISP
Command code: 57
This command is used to [COLOR=Red]invoke the boot loader in ISP mode[/COLOR]....This command may be
used when a valid user program is present in the internal flash memory and the
P2.10 pin is not accessible to force the ISP mode.

What's not clear there?