Flashing external nRF51422

RE: Flashing external nRF51422

Hung Bui — Tue, 01 Aug 2017 14:04:35 GMT

No, there is no bootloader. I don't really understand why you need to unmount the chip on the DK to solder on your board but not simply solder the new chip on your board and flash it. Please try to debug and check what could be wrong. You can start first with just blinking the LEDs before you test with BLE.

RE: Flashing external nRF51422

Javi — Tue, 01 Aug 2017 13:09:22 GMT

Thanks for the reply, probably I don't explain very well... I use nRF51 DK as a programmer both internal IC(DK) and customized board separately. Only works the DK. After this, I try to remove the IC one that was in the DK and solder it on my board. Works correctly. flashed now on my board and works fine. So I solder a new IC on the DK board, flashed correctly but doesn't works. Is it possible that DK ICs have some type of bootloader?

RE: Flashing external nRF51422

Hung Bui — Tue, 01 Aug 2017 11:46:55 GMT

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.