Good day Nordic people, I am facing a problem when erasing or writing to internal flash memory after enabling softdevice. here the details and tests:
Setup: - GCC, arm toolchain, make files under linux OS. Visual studio code for editing.
Exact problem: - when trying to erase or write to internal flash, it throw an exception at PC address 0x15074. sure this after SD enable.
Testing and Tries: - Am using SD flash APIs. - I tried to access sd flash function directly and within fstorage APIs. - I tried Segger Fstorage example and it was working fine so i moved this example to my setup but no luck. - i tried to disable softdevice before Flash operation and enable after finishing, it is working sometimes... in all cases i don't recommend this way of solving this problem. - before enabling softdevice, I was able to master flash operation without any problem. - I tried many configuration for sofdevice lf_clock, RC, XTAL and SYNTH
I think, there is a missed configuration is done by IDE like Segger, I didn't use it. But what is this configuration, i don't know.
What SDK are you using exactly? I think it's not recommended to do flash operation inside interrupts like this, especially in applications with the SoftDevice, since the SoftDevice has higher priority than most other peripherals/functions and may at any time interrupt operations like this to do something time critical.
Hi Simon, Almost solved my issue, i have one question: is that possible to disable softdevice inside an ISR and then can use SD_FLASH_ERASE function? if possible, how is that with a tested case please.
No, that's not possible. SD_... functions are SoftDevice functions that the SoftDevice calls and manages, so disabling the SoftDevice won't let you use any of these functions. I don't see how it makes sense to disable the SoftDevice in the middle of your application at all, and I do not recommend doing so.
