Error in softdevice s310 programming using keil in nrf51422

[sumanta]

Hi, i am using the sru232 module (having nrf51422) in my project. I just want to program the softdevices-s310 using Keil-5 but i am not able to do so, while i am trying the same i am getting error
Erase Failed! Error: Flash Download failed - "Cortex-M0"

plz describe how to fix the issue

[tesc]

You can try erasing the flash using nrfjprog (nrfjprog -e) or nRFgo studio.

What is your setup for programming the module, what kind of programmer do you use?

[Jorge]

When you are getting that error the cause could be two things, from what I understand. One, the selected target is not the one you are using, or the IRAM and IROM don't have the right sizes or locations in the memory. You can see them in "Target options" and see if they match to your setup.

[sumanta]

yes i have tried the same but also i am getting the same Error the default value of the IROM-0X0 AND SIZE-0X40000 AND THE IROM-0X20000000 SIZE- 0X8000 . I have changed the location to IROM-0X16000 SIZE-0X29000 AND IROM-20002000 SIZE-0X2200 but still getting the error. I am using the STlink debugger and using the same i am able to program my application without any issue only i am not able to program the softdevice s310v3 .Plz let me know your answer

[sumanta]

nrfjprog i am not able to use as i am using SWD hardware to program the nrf51422 . So only i can use keil-v5 to program the soft-device s310v3. I can program my application without any problem but only problem i am facing with the soft-device. I am using the Stlink debugger for programming

[tesc]

Are there any other messages before the "Erase Failed!" etc., such as in this question: Using stlink and Keil to program nrf51

Have you seen this blogpost: Programming nRF51 with ST-Link & uVision

I also see that others on the forum has used an ST-Link for programming the nRF51, using OpenOCD.