nrf51822 oscillator requirement for flashing

[Flagada15]

Hi all !

Can you tell me if it is possible to flash a single nrf51822 ship directly or if it requires at least the minimum oscillator X1 in order to be flashed?

The reason I am asking is that I tried to sold a nrf51 on a home made pcb and currently with only the ship it doesn't seems to work but I don't know if my soldering is the cause, or if I burn the ship with the hot air or if I have to sold additional capacitor and quartz in order to be able to flash...

Thanks in advance for your response !!

[Flagada15]

Thank you very much for your answer, still not making it works but I will find :) It's a good thing that we can test the ship before to solder all the other components ;)

I am using a nrf51-dk via the p20 port to flash the standalone ship, what JLink command you would use in order to test the connexion? On my side, when I try to upload the .hex file I just receive a FAIL.TXT file saying "Error while connecting to CPU"...

[RK]

adding a blank line so that the formatting works ...

JLink -if swd -device nrf51

connect

try that - that's the most basic

[Flagada15]

ok I will try that thank you! solder those ships is harder than I though ;)

[RK]

It's very hard. I'm using a home made reflow oven and I've got 1 of 3 fully soldered the first time, one of the other two I never got to work and the other one I got working after a lot of messing about with hot air. I actually just ordered a stencil to try and make this a bit easier.