Unable to program the NRF51422 using J-link

RE: Unable to program the NRF51422 using J-link

Sigurd — Tue, 30 May 2017 07:41:58 GMT

Hi,

The Keil flashing-algorithm has a check that stops it from overwriting an existing SoftDevice with the application firmware. This is a safety mechanism put in place that prevents the application firmware to be flashed to the flash-region where the SoftDevice is located.

The “peripheral” examples in the SDK usually doesn’t use the SoftDevice, and is by default placed in the same flash-region where the SoftDevice is located (at the start of the flash). If you in this case have already flashed the SoftDevice, you will either need to move the application above the SoftDevice region, or erase the SoftDevice with nrfjprog using the eraseall command.

Note that you can use Keils integrated command line functionality with nrfjprog. See this blog post for more information about that.

RE: Unable to program the NRF51422 using J-link

myjtag — Tue, 30 May 2017 05:07:18 GMT

the problem was solved, there was a soft device programmed on the device, but why not supply the j-link ini setup file integrated into keils project so the keil could erase the chip too!!!!

RE: Unable to program the NRF51422 using J-link

Sigurd — Mon, 29 May 2017 06:54:09 GMT

What example in the SDK is this? Is the example using the SoftDevice? How does your IRAM/IROM settings look like?