Flashing NRF51822 with STM32 JTAG Board

RE: Flashing NRF51822 with STM32 JTAG Board

godmode — Sat, 30 Jun 2018 09:02:11 GMT

I had the same problem: only higher version of SWD support daisy chaing not the one in Nordic chips. You need to use own build SWD multiplexer to programm/debug multiple devices:
devzone.nordicsemi.com/.../what-is-the-swd-driver-impedance-of-swdio-line

RE: Flashing NRF51822 with STM32 JTAG Board

Jørgen Holmefjord — Tue, 18 Apr 2017 10:40:56 GMT

nRF52832 does not support JTAG, only SWD interface. SWD does not support daisy-chaining.

RE: Flashing NRF51822 with STM32 JTAG Board

liudijiang — Tue, 18 Apr 2017 00:44:48 GMT

can nrf52832 use jtag chain ? i wanna program two nrf52832 with one connectors.

RE: Flashing NRF51822 with STM32 JTAG Board

Michael Dietz — Thu, 20 Oct 2016 11:27:43 GMT

I would highly recommend using a J-Link debugger (great quality and best support with nRF5 devices/Nordic tools). The next best option is probably pyOCD (open source and free, debuggers very cheap) where you can use a CMSIS-DAP/DAP-Link debugger.

Note: you don't need to buy a J-Link debugger. If you already have (or want to buy) an nRF5 dev kit which has an on board J-Link debugger, and then use the Debug Out pins on the DK to use the J-Link debugger with a custom board.

However if you are dead set on using STLink, you can use openOCD.

This can serve as a guide for using OpenOCD to program nRF5 via STLink: github.com/.../Board:-yunjia-nrf51822

Just note, openOCD is difficult to set up and it will cause you headaches but nRF5 devices are supported in openOCD.

RE: Flashing NRF51822 with STM32 JTAG Board

RK — Fri, 14 Oct 2016 01:30:20 GMT

Any debugger which supports SWD should work. Best is to get a proper Segger JLink, but there are CMSIS-DAP debuggers (there's a guy on the list sells one here embeddedsoftdev.blogspot.sg/.../idap-link.html, I haven't tried it), people have used STLINK although it seems they've had to work a bit. There are Segger clones on aliexpress although I wouldn't use one myself because 1) I don't think people should rip off Segger's IP like that and 2) software updates on the JLink side can break them.

What's important is the thing you pick ships with available tools you can use, not just to load code onto the device, but use as a full debugger. Debugging with printf() and UARTs is such a waste of time when full debug support is available.

I have a JLink EDU which I use for just about everything, it was worth the investment.

RE: Flashing NRF51822 with STM32 JTAG Board

anre — Fri, 14 Oct 2016 01:13:04 GMT

Do you have a recommendation on what to use to program the NRF51822 other then the official Nordic board?

RE: Flashing NRF51822 with STM32 JTAG Board

RK — Fri, 14 Oct 2016 00:48:31 GMT

well you should ask the person who made it and is selling it. Since the only Nordic thing on those two products is the chip on the bluetooth module, there are no instructions, no schematic, no information at all, it's sort of impossible to say.

My guess would be .. no that's not going to work.