Boot loader corrupt after using ARM-USB-OCD

Development Boards MicroMod
1

Hi Folks,

I just started to use OpenOCD using Olimex cable. After first use, I wanted to download firmware using standard flash loader application. However I’m not able to download the firmware. Looks like boot loader is not getting activated.

So I have two questions

1.Does OpenOCD can corrupt system boot loader?

2.Is it possible to reprogram old boot loader to make it work like before?

I’m using stm32f103z.

Thanks in advance!!!

Cheers,

Junaid

2

I think the boot loader is okay as it is in internal ROM.

May be instruction which jumps to bootloader is overwritten falsely?

Cheers,

Junaid

3

I realized with JTAG cable connected one cannot use flash loader.

Issue resolved,. :slight_smile:

Cheers,

Junaid