Write in flash nrf52832 sdk 11s132 softdevice

RE: Write in flash nrf52832 sdk 11s132 softdevice

emdi — Wed, 18 Oct 2017 07:49:44 GMT

I don't think the version of the fstorage library in SDK 11 allows to set your own p_start_addr and p_end_addr. You could try to use the SoftDevice function instead: sd_flash_write().

RE: Write in flash nrf52832 sdk 11s132 softdevice

annapalu — Wed, 18 Oct 2017 07:48:42 GMT

In the fds_init the p_config->p_end_addr = p_current_end; is always 0x8000

RE: Write in flash nrf52832 sdk 11s132 softdevice

annapalu — Wed, 18 Oct 2017 07:44:50 GMT

i use the sdk 11

RE: Write in flash nrf52832 sdk 11s132 softdevice

emdi — Wed, 18 Oct 2017 07:42:35 GMT

Which SDK version are you using?

RE: Write in flash nrf52832 sdk 11s132 softdevice

annapalu — Tue, 17 Oct 2017 19:38:38 GMT

This my code, and would use one page of flash to write a flag. I try to configuration for my application as:

// Our fstorage configuration.
FS_REGISTER_CFG(fs_config_t flashConfig) =
{
    .p_start_addr = (uint32_t *)0x2FE00,
    .p_end_addr   = (uint32_t *)0x2FE10,
    .callback  = DRV_FLASH_Callback,
    .num_pages = 1,
    
    // We register with the highest priority in order to be assigned
    // the pages with the highest memory address (closest to the bootloader).
    .priority  = 0xFE
};

but when the fs_init is called the start and stop address is different how i expect, and the reason is that in fs_init the end address is end of flash and consider the page allocated calculated the start address...

RE: Write in flash nrf52832 sdk 11s132 softdevice

annapalu — Tue, 17 Oct 2017 14:51:08 GMT

I would write in a flash memory a flag in case of reset of device simply.

But i would write in memory area outside the linker file. In other word, for my project i use flash memory until the address 0x0002FE00 and at first address useful i would write my flag in memory

RE: Write in flash nrf52832 sdk 11s132 softdevice

emdi — Tue, 17 Oct 2017 13:51:48 GMT

Short answer: yes.

In practice, a 'configuration' is just an area of flash plus a set of functions that fstorage uses to write to that area. You can 'share' a configuration or you can use different ones, depending on what you want to do.

RE: Write in flash nrf52832 sdk 11s132 softdevice

annapalu — Tue, 17 Oct 2017 13:42:47 GMT

I can use different configuration for every application that use fstorage?

RE: Write in flash nrf52832 sdk 11s132 softdevice

emdi — Tue, 17 Oct 2017 13:29:10 GMT

You can use the fstorage library for that, check out this page: infocenter.nordicsemi.com/index.jsp

RE: Write in flash nrf52832 sdk 11s132 softdevice

annapalu — Tue, 17 Oct 2017 13:26:06 GMT

i have looked the library. But i don't understand clearly if i can use it to write a value in a specific address of flash.

RE: Write in flash nrf52832 sdk 11s132 softdevice

emdi — Tue, 17 Oct 2017 11:34:19 GMT

You can't use those registers when the SoftDevice is present and enabled. I suggest you have a look at the fstorage and fds libraries.