Can't get Keil to break at Main

RE: Can't get Keil to break at Main

Vidar Berg — Wed, 10 Dec 2014 08:18:42 GMT

You can program the softdevice stack using Ulink via keil using the approach described here: www.keil.com/.../uv4_fl_hexdownload.htm

Note that the application start address should be 0x16000 with softdevice s110 v.7x.x. The memory sections are described in more detail in chapter 10 in the S110-SDS

RE: Can't get Keil to break at Main

mac — Wed, 10 Dec 2014 01:11:50 GMT

I am not able to program the softdevice into our custom board. I have programmed 7.0.0 into said device. I then built my application and have the application loading to address 0x14000. When I use keil and start debug my main routine is never hit. Halting the debugger It seems to be in a loop where it is looping to the same address almost as if it is in some sort of hard reset loop. If I then load the applications reset_Handler() address, which I got from the .map file" and hit run everything runs as expected. So, what am I missing?

RE: Can't get Keil to break at Main

c cook — Thu, 04 Dec 2014 20:14:36 GMT

Mac - I'm fairly new to Nordic myself, and have been through the issues you're describing. When I can't break at main, it's either because I didn't have the stack programmed, or in Keil under Project/Options, C/C++ I didn't have the IROM1 and IRAM1 memory correct. I'm not sure what they should be for the PCA10028 - It has more RAM than the older PCA10003 board that I'm using.

To program the stack the easiest thing is make sure you have a current version of nRFgo Studio, the current softdevice stack's hex file. Plug your board into the USB port of you PC, and start nRFgo Studio. Left side of the opening screen is a Device Manager Pain. You should see your board labelled Seggar (s/n on seggar chip). Double click on you board. The large right area of studio's window should have a window with 3 tabs, the left labelled "Program Softdevice" Choose that tab, browse to you S110 hex file. and click program. You should be good to go.

RE: Can't get Keil to break at Main

Asbjørn — Thu, 04 Dec 2014 15:21:22 GMT

You can program custom boards through nRFgo Studio, but it's limited to Segger J-link devices. That's the missing link in your setup. How did the original development company program the units? There's a M0 on board, so you should be able to use a U-LINK, but we don't have any example on this specific setup.

RE: Can't get Keil to break at Main

mac — Thu, 04 Dec 2014 15:12:03 GMT

Yea, I have read that chapter. I do not have a segger device. All I have is a Keil ULINK2 device. We do not have any EVKs. This project was given to us by the original development company and all I have is a custom board. So, I need to download the S110 Soft device. nRFgo Studio offers no way to program a custom board.

RE: Can't get Keil to break at Main

Asbjørn — Thu, 04 Dec 2014 15:06:41 GMT

Instructions on how to program the board and softdevice can be found in chapter 6 of the nRF51822-EK user guide.

Exactly which kit do you have? Make sure you select j-link as option in the debug section as it's a j-link that's on our development and evaluation kits.

RE: Can't get Keil to break at Main

mac — Thu, 04 Dec 2014 14:42:39 GMT

I am attempting to program the Soft Device now. Can't find documentation that explains this procedure. I a VERY new to Nordic devices and I have to say I am struggling. Any help would be appreciated.

RE: Can't get Keil to break at Main

John — Thu, 04 Dec 2014 14:15:33 GMT

Did you program the soft device executable onto your board before programming and attempting to debug the example? I've seen the behavior you describe when I've forgotten to program the soft device onto a newly built custom board.