RE: Not able to erase only Flash using erasepage, sectorerase options

beemavishnu — Sun, 05 Jan 2020 16:07:27 GMT

Thank you for your inputs.

Yes, by updating command line tool, I am able to flash properly.

RE: Not able to erase only Flash using erasepage, sectorerase options

Vidar Berg — Fri, 03 Jan 2020 13:31:30 GMT

Hi Vishnu,

1 a) It erases the first page. Notice the output "erasing addresses 0x0 to 0xfff

1 b) This function erases 64KB

2) I guess this was resolved after you updated nrfjprog.

3) --verify is simply reading back the data and comparing it against the hex file it just programmed. nrfjprog will only read back data from addresses contained in the hex file. I.e., it won't read from UICR if the hex file didn't include any UICR data.

4) UICR is in flash memory so it's impossible to erase just a small section of it.

Best regards,

Vidar