topic Re: on power on LPC1769, the code isn't executed in LPC Microcontrollers

on power on LPC1769, the code isn't executed

pedromoreira — Thu, 22 Sep 2016 13:36:17 GMT

Hi all, i'm testing LPC1769 on a LPCxpresso board, when I use debugger on IDE, the code is executed OK but when I power UP the board the code isn't executed, what is wrong?

many thanks

pmoreira

Re: on power on LPC1769, the code isn't executed

brendonslade — Fri, 23 Sep 2016 15:23:29 GMT

What code are you running and on which board exactly (OM13085?)

Did you try this using periph_blinky from the LPCOpen package?

Re: on power on LPC1769, the code isn't executed

ronwal — Thu, 15 Dec 2016 12:39:48 GMT

Hi, I´ve got the same problem. What is the cause for that?

On OM13000 it worked before.

My project is based on the uIP/ webserver sample.

Ron

Re: on power on LPC1769, the code isn't executed

brendonslade — Thu, 15 Dec 2016 18:45:16 GMT

This can be caused by an external reset being applied to the LPC11U35 debug probe on the board as the board starts up. The attached notes from Embedded Artists explain the problem and how to modify the board to avoid it.

Re: on power on LPC1769, the code isn't executed

ronwal — Fri, 16 Dec 2016 11:08:00 GMT

I´m using the OM13085 eval. board and it seems to behave differently than the OM13000, which I used before.

Where can I find the information exactly?

Thanks

Ron

Re: on power on LPC1769, the code isn't executed

brendonslade — Fri, 16 Dec 2016 18:24:26 GMT

Its an attachment to my response above (the LPCXpresso1769 CD Rev D Product Note PDF file.)

Re: on power on LPC1769, the code isn't executed

pedromoreira — Fri, 23 Dec 2016 12:51:46 GMT

Hi, the original problem was produced for a "printf()" statement, deleting this instruction the problem don't occur. I think that the cause for this anomaly is that the debug module load automatically the library that contain the code for the printf statement.

thanks

pmoreira