The questio of nrf_fstorage_write() of SDK17.02

[xiang san]

Hi,

  About the function : nrf_fstorage_write(nrf_fstorage_t const * p_fs,uint32_t dest,void const * p_src,uint32_t len,void * p_param);

   I customized an array of data ，but the source addresses is not  word-aligned ,so it returns NRF_ERROR_INVALID_ADDR,I want to know why? 

  the adrress of array is 0x2000a71d,it is not word-aligned, if it is 0x2000a71c ,it is word-aligned.

  thanks!

[Håkon Alseth]

Hi,

 

  the adrress of array is 0x2000a71d,it is not word-aligned, if it is 0x2000a71c ,it is word-aligned.

Yes, fstorage requires everything to be word aligned.

Try to align your buffer by adding "__ALIGN(4)" to the declaration of it. Example:

__ALIGN(4) uint8_t my_buffer[MY_SIZE];

 

Kind regards,

Håkon

[xiang san]

Hi，

   Thank you very much!My problem is solved. It's very effective by adding"__ALIGN(4)".

[Håkon Alseth]

Hi,

 

I am glad to hear this! Hope you have a wonderful day!

Kind regards,

Håkon