Programming nRF51822?

[i_am_trying]

I will be building PCBs with an nRF51822 module. I was reading in another question that perhaps the best way to program the nRF51822 on multiple PCBs is to use the SEGGER flasher

is this the best way to get my program onto the nRF51822's?

i assume this will require a JTAG 20 pin connector?

thank you.

[Victor Nascimento]

For prototyping, we simply hooked the SWD interface to the Debug-out p19 port of the nRF51 DK. You just need 4 pins: SWDIO, SDWCLK, VCC and GND. After powering the board, when the Segger chip sees a 3.3V on the VCC pin (pin 1 of the p19 connector) it just uses the external SWD interface instead.

For mass production, Segger offers many solutions, even for parallel programming and stuff.

[i_am_trying]

Thank you. After your advice and looking at the nrf51 dk user's guide, i'll use p20 unless it is easy to get a cable attachment that has the tiny 10 pin female connector used by p19. What cable do you use? p20 has the advantage of having pins that i can attach a female jumper cable end to.

[Nguyen Hoan Hoang]

That cable is available here. Choose the 10 pins, 1.27mm pitch.