nRF51822 Programmer

RE: nRF51822 Programmer

Nguyen Hoan Hoang — Mon, 11 Nov 2019 13:35:16 GMT

Mojo is right, it is not the core. The core is the same among all silicon vendor except each vendor uses different flash chip hence the require driver for each one. For instance, same Cortex-M4 on STM32 or NXP do not program the same. You need to use the right flash algo to flash each. If you want to know more, look in the datasheet of each one and look at the core datasheet on ARM and look at the OpenOCD source code where you can find flash algo for each vendor.

RE: nRF51822 Programmer

TomaszZ — Mon, 11 Nov 2019 11:26:59 GMT

"The Flash memory however is what you need to program not the core processor" oh really? Where did you get that? 👀 Do you know that it's the processor that you talk to when programming the flash? :)

RE: nRF51822 Programmer

Kenneth — Mon, 11 Nov 2019 08:45:17 GMT

Personal preference is using SEGGER j-link, since Nordic provide the command line tool 'nrfjprog' to program all nRF5 based devices using it:
https://www.nordicsemi.com/Software-and-Tools/Development-Tools/nRF-Command-Line-Tools/Download

RE: nRF51822 Programmer

Mojo — Fri, 08 Nov 2019 16:30:29 GMT

Yes, to processor is ARM Cortex-M0. That is the core processor. The Flash memory however is what you need to program not the core processor. Of course you can use any jtag as long you have the driver for the target core and flash memory inside the target.

RE: nRF51822 Programmer

TomaszZ — Fri, 08 Nov 2019 16:27:04 GMT

I thought ARM ST link JTAG programmer would work with the chip?this chip is arm based isn't it?

RE: nRF51822 Programmer

Mojo — Fri, 08 Nov 2019 16:12:26 GMT

What do you mean st link ? This jtag is not st link. It's IDAP-Link designed specifically to flash nRF5x series. We use them for both development and production flashing

RE: nRF51822 Programmer

TomaszZ — Fri, 08 Nov 2019 16:10:39 GMT

Thanks!I have st link but it won't work.

RE: nRF51822 Programmer

Mojo — Fri, 08 Nov 2019 15:39:45 GMT

Try this one embeddedsoftdev.blogspot.com/.../idap-link.html