nRF Mesh can only find one of two identical nRF52840 dev kits

RE: nRF Mesh can only find one of two identical nRF52840 dev kits

tesc — Wed, 08 Mar 2023 09:16:44 GMT

Hi,

In general, for applications using flash for storage (in addition to the program code itself,) programming that application will only erase and write the flash area for the application itself, but leave the flash pages used for storage untouched.

In other words, the missing erase is not where the application itself is stored, but rather where the data read by the application is. With old data there, the application typically fails due to garbage data read from that storage.

Regards,
Terje

RE: nRF Mesh can only find one of two identical nRF52840 dev kits

SDPro — Fri, 03 Mar 2023 21:55:26 GMT

Erasing the board solved the problem. Thanks for the suggestion. I read up some on flash memory and it would seen we should always erase before we flash. As in erasing sets all bits to 1 and writing can leave them at 1 or set to 0. If that's the case, it would never work to flash a new image without erasing first, no? Again, thanks for the info.

RE: nRF Mesh can only find one of two identical nRF52840 dev kits

tesc — Fri, 03 Mar 2023 12:19:10 GMT

Hi,

When you rebuilt and flashed the boards, did you do a full flash erase (either separately erasing before flashing, or flashed with full flash erase)?

Regards,
Terje