Please help me with the problem of the optimization set to 0 flash read and write error

[peter.min]

1. Optimization is set to 0 flash read and write errors, set to 3 flash read and write correctly?
2. Please tell me what effect the optimization is on flash reading and writing when it is set to 0nRF5_SDK_15.3.0_59ac345.peter.flash.rar?

[Jørgen Holmefjord]

Hi,

Fstorage is only able to write full words to flash. The data you are trying to write is not word-aligned. You can add the aligned-attribute to make sure that it is aligned:

static char  __attribute__((aligned))   Test[9] = { "12345678" };

Best regards,
Jørgen

[peter.min]

Thank you