LPC MicrocontrollersのトピックRe: LPC43xx Reset script

LPC43xx Reset script

cescvaro — Tue, 21 Jan 2020 17:18:40 GMT

Hi,

I'm using an LPC4330 micro with a custom board and I'm using MCUXpresso 10.3.

I'm able to run a debug+flash session (the code is stored on an external flash) but I'm unable to properly lunch an attach debug session, after the IDE connects with the probe looks like it set (or jump) to adress 0x0 but the VTOR is not there.

What am I doing wrong?

Which Connect and Reset script should I use ?

How to properly tell gdb where VTOR is?

Re: LPC43xx Reset script

xiangjun_rong — Wed, 22 Jan 2020 07:55:54 GMT

Hi, Francesco,

Regarding your question for VTOR, obviously, the value of VTOR register is dependent on the position of vector table, the LPC4330 processor is flashless, in other words, the LPC4330 has not on-chip flash, I suppose you put the code and constant on external spi flash on your board, is it right? The spi flash is located at 0x1400-0000, if it is the case, the VTOR should be 0x1400-0000.

If it is not what you expected, pls post your project so that we can have a review.

Hope it can help you

XiangJun Rong

Re: LPC43xx Reset script

cescvaro — Wed, 22 Jan 2020 08:42:35 GMT

Hi XiangJun ,

thanks for the answer.

Yes you are right, there is a an external SPIFI Flash located at 0x1400_0000.

I suppose you put the code and constant on external spi flash on your board, is it right? => yes.

So, I'm not sure about how setup an attach only debug configuration (I'm using LPC Link 2).

My config option are:

Debug connection SWD
Additional options: empty
Attach onyl: True
Connect Script: not sure about this. Flash connect?
Debug Level: 2
Debugger memory cache: Disable
Disconnect behavior: cont
Flash Driver Reset Handling: Default
Load Image: Ture but should be no problem as is deprecated.
Maximum Wire Speed: empty
Memory Access Checking: off
Pre launch command: empty
Reset Handling: Default
Reset Script: not sure. LPC18LPC43ExternalFLASHBootResetscript.scp ?
Run/Continue image: cont
Semihosting support: off
Vector catch: False
Wirespeed: empty.

regards,

fv.

Re: LPC43xx Reset script

cescvaro — Tue, 28 Jan 2020 11:13:42 GMT

Hi,

any further detail that can help?

Basically about the Reset & Connect script.

thank you.

regards,