SDK 9.0.0 S130 softdevice + Flash write

RE: SDK 9.0.0 S130 softdevice + Flash write

george — Sun, 21 Aug 2016 15:37:29 GMT

Hi,

Has this answer changed using the S130 SoftDevice v1.0.0? I am having similar trouble with the following code. I can't seem to read/write the FLASH memory.

uint32_t data_out[1];
uint8_t word_count = 1;
uint32_t* flash_value;
uint32_t pg_size = NRF_FICR->CODEPAGESIZE;
uint32_t pg_num  = NRF_FICR->CODESIZE - 1;  // Use last page in flash
uint32_t addr = (uint32_t *)(pg_size * pg_num);

debug_print("Code Size: ", pg_size);
debug_print("Page Number: ", pg_num);
debug_print("Address: ", addr);




//WRITE VALUE TO FLASH
data_out[0] = 0xDEADBEEF;
 sd_flash_write(addr , data_out, 1);
debug_print("Data Out w/ Write: ", data_out[0]);

//READ VALU FROM FLASH
flash_value = (uint32_t*)addr;
data_out[0] = *flash_value;
debug_print("Data Out: ", data_out[0]);

RE: SDK 9.0.0 S130 softdevice + Flash write

Einar Thorsrud — Thu, 05 Nov 2015 07:27:45 GMT

I'm glad to help. If you are satisfied with the answer I'd be happy if you could accept it.

RE: SDK 9.0.0 S130 softdevice + Flash write

HakJae — Thu, 05 Nov 2015 01:48:58 GMT

Thank you . It very helpful !

RE: SDK 9.0.0 S130 softdevice + Flash write

Einar Thorsrud — Wed, 04 Nov 2015 12:10:08 GMT

You should not access the flash directly (as in the Flash Write Example) when using the SoftDevice. Instead you have two options:

Using the sd_flash* functions from the SoftDevice SoC library API (such as sd_flash_write and sd_flash_page_erase)
Using the Persistent Storage Interface (pstorage)