RTC1_IRQHandler(); Error

[jackiemoon98]

Hi all,

I am debugging a program after compiling with no errors using the SDK 15.2.0 on a windows laptop and nRF52840 board. The program was designed to save 8 bytes of data to flash every 50ms for 3 days using fstorage. There should be enough storage on this particular board to allow for this, however I have not had a successful 3 day run yet. The latest bug in the code occurred at "void RTC1_IRQHandler();" in the call stack and about 90 minutes in with an error value of what looks to be 0x00026FC4, which doesn't make sense, at least not to me. I understand this has something to do with the timers, which I use to call the fstorage functions every 50ms. However, as a beginner programmer, I am unable to assess any issues at a lower level. Could someone give some suggestions as to what may be causing this issue?

Thanks,

Jack

[Simonr]

Hi Jack

Can you confirm that all the pages you are planning on writing to are erased prior to running the application. You won't be able to run flash write on flash pages that aren't empty. Please refer to the nRF52840 product specification on how to do this.

Best regards,

Simon

[jackiemoon98]

Hi Simon, 

I am always sure to either erase the device or change the start address for the memory write to an empty location. I have also forgotten to do this in the past and seen this behavior and am fairly certain this is a different error. I would also check in the memory 1 view to ensure the values were cleared. However, I will look into the product specifications to ensure I have been erasing the board properly. Could there be another cause for the error?

Thanks,

Jack