Flashing external nRF51422

[Javi]

Hello,

I have developed a board with the integrated nRF51422 QFAA. I have the nRF51DK. To compile I have used both mbed and arm-gcc and the binaries work perfectly on the DK, but on my board these binaries do not work. Apparently they have been correctly programmed through the J19 connector, inasmuch as nRFgo Studio correctly detects the IC and in the log you can see the following

>Application 
C:/Users/Zol/Downloads/nRF5/SDK/examples/peripheral/blinky/pca10028/blank/armgcc/_build/nrf51422_xxaa.hex programmed successfully

After checking my board thoroughly and see that everything is correct, I decided to remove the nRF51422 from the DK and weld it to my board. Works correctly. So I put a new IC in the DK. When programming, show the previous message (correct) but it does not work

Any solution? Does the IC need any bootloader?

Thanks

[Hung Bui]

Hi Javi,

Are you saying that you are planing to do programming your external board by swapping the chip all the time ? I don't think it's a very good idea. You can use the nRF51 DK as a programmer and program the chip on your custom board. Check the Debug out port on the nRF51 DK.

Regarding your issue with the current IC, I guess you should try to debug it and check what's wrong. I suspect the crystals are not connected properly.