Cannot debug using Segger Embedded Studio

[konsang]

Hi, 

Previously, I have done a board and this board have completely no problem to debug in Segger embedded studio.

I have route a new board, this board is almost everything as same previous board.

In this board, I cannot debug in Segger embedded studio.

1.  When I run in debug mode, the left panel totally empty. I have no way to set any debug point.

2. When I keep the main code small as possible, just toggle LED. The debug still cannot work. 

Do you know what general root cause of such issue ?

Please advise.

[konsang]

Hi,

I found the issue.

It is because I am using module from Laird manufacturer.

The module is pre-installed with bootloader firmware.

So, I need to erase the flash for the first time then program.

Thanks