Flashing NRF51822 with S130 and (almost) complete SDK

RE: Flashing NRF51822 with S130 and (almost) complete SDK

Susheel Nuguru — Thu, 19 Nov 2015 10:44:34 GMT

what are the versions of softdevice and chip your are using? nrfjprog will not allow you to write on dirty pages, you need to erase chip, program softdevice and then program the application. Everything will be flashed correctly if softdevice and application are not overlapping. If they do, then nrfjprog will give error like the one you mentioned.

Keil on the other part will be able to write on application dirty pages, this means that an application can be flashed to already flashed memory without the need of explicit erase operation. This is because the flash algorithm provided by nordic for Keil will internally erase necessary flash pages. On the other hand this is not the same if Keil sees that the application is trying to write to the softdevice flash area. It will then fail.

RE: Flashing NRF51822 with S130 and (almost) complete SDK

gortok — Wed, 18 Nov 2015 22:46:34 GMT

@shibshab Yes; I get a different error; It fails to flash, but doesn't mention anything about trying to overwrite protected memory.

RE: Flashing NRF51822 with S130 and (almost) complete SDK

shibshab — Wed, 18 Nov 2015 19:47:40 GMT

Have you tried using the built in Keil flasher instead of nrfjprog? You can choose this in 'Options for Target' -> 'Utilities' -> 'Use Target Driver for Flash Programming' and set it up to use the JLink driver with the 'SW' option.