Can mbed hex app run on custom board?

RE: Can mbed hex app run on custom board?

Anders Strand — Fri, 01 Apr 2016 09:23:42 GMT

It is possible that the mBed code requires an external 32 Khz crystal. That is why i asked you if you had any BLE libraries in your project. Can you either send a link to the project, or export the project to Keil, and then upload it here?

RE: Can mbed hex app run on custom board?

gdou — Fri, 18 Mar 2016 15:44:58 GMT

Thanks Anders - Yes it will work on a nRF51 DK, but it does not work on the custom board. I made it pin11 high instead of blinky just to make it simple - and HIGH should light the LED in my board. I am wondering if the mbed compiles the HEX with a setting that does not work with my nRF51822 version, which is NRF51822-QFAB-R7. Is that possible?

RE: Can mbed hex app run on custom board?

Anders Strand — Fri, 18 Mar 2016 13:09:28 GMT

I flashed your hex to a nRF51 DK. Pin 11 is high. If you are making a "blinky", you should turn it off AND on, then it is easier to see if anything happens. Many LED's will turn on when the output is LOW. Maybe this is why your led is not lighting up?

RE: Can mbed hex app run on custom board?

gdou — Fri, 18 Mar 2016 05:24:35 GMT

I have added the HEX file in the original post. Thanks for the help!

RE: Can mbed hex app run on custom board?

Anders Strand — Thu, 17 Mar 2016 12:14:38 GMT

Hello.

The hex generated from mbed should work.

Does your blinky project include any BLE libraries, or is it a pure blinky? Since you do not have a 32Khz crystal, a softdevice might not work because it uses an external 32kHz crystal by default.

The softdevice is places in the bottom of flash (address 0x00). The softdevice region error you get, is given because the blinky app is also compiled to be at address 0x00. Can you try the blinky example from our SDK, and see if that works? By doing this, we can eliminate the custom hardware.

Yes, but it does not mean that the application will run without errors.
It should work.

Can you send a link to the mbed project, or attach the hex file?

-Anders