able to do the OTA but when reset the nRF 7002dk kit then take old code

[ChiragBhavsar]

I used SDK v2.6.2 with the nRF7002 DK kit.i used mcu boot secondary with external flash. 

I was able to perform OTA using the nRF Connect app, but after resetting the DK kit, it reverts to the older firmware. How can I resolve this issue?

EMPTY_0:

address: 0xfe000

end_address: 0x100000

placement:

after:

- settings_storage

region: flash_primary

size: 0x2000

app:

address: 0x10200

end_address: 0xfc000

region: flash_primary

size: 0xebe00

external_flash:

address: 0xec000

end_address: 0x800000

region: external_flash

size: 0x714000

mcuboot:

address: 0x0

end_address: 0x10000

placement:

before:

- mcuboot_primary

region: flash_primary

size: 0x10000

mcuboot_pad:

address: 0x10000

end_address: 0x10200

placement:

before:

- mcuboot_primary_app

region: flash_primary

size: 0x200

mcuboot_primary:

address: 0x10000

end_address: 0xfc000

orig_span: &id001

- mcuboot_pad

- app

region: flash_primary

size: 0xec000

span: *id001

mcuboot_primary_app:

address: 0x10200

end_address: 0xfc000

orig_span: &id002

- app

region: flash_primary

size: 0xebe00

span: *id002

mcuboot_secondary:

address: 0x0

device: DT_CHOSEN(nordic_pm_ext_flash)

end_address: 0xec000

placement:

align:

start: 0x4

region: external_flash

share_size:

- mcuboot_primary

size: 0xec000

otp:

address: 0xff8100

end_address: 0xff83fc

region: otp

size: 0x2fc

rpmsg_nrf53_sram:

address: 0x20070000

end_address: 0x20080000

placement:

before:

- end

region: sram_primary

size: 0x10000

settings_storage:

address: 0xfc000

end_address: 0xfe000

placement:

align:

start: 0x4000

before:

- end

region: flash_primary

size: 0x2000

sram_primary:

address: 0x20000000

end_address: 0x20070000

region: sram_primary

size: 0x70000

[Håkon Alseth]

Hi,

 

Are you calling boot_write_img_confirmed() in your new application?

https://github.com/nrfconnect/sdk-nrf/blob/v2.9.0/samples/cellular/smp_svr/src/main.c#L32

 

Kind regards,

Håkon

[ChiragBhavsar]

No, I didn't call boot_write_img_confirmed().

Is there any specific reason to call boot_write_img_confirmed()?

[Håkon Alseth]

Hi,

 

This is for the new application to be able to run a self-test before confirming that the OTA image is indeed working as it should. If this is not run, it will revert to the old image.

 

Kind regards,

Håkon

[ChiragBhavsar]

Hi,

I add boot_write_img_confirmed() and problem is solve,
thanks for your support.

[Håkon Alseth]

Glad to hear that this helped. Hope you have a wonderful day!

 

Kind regards,

Håkon

[ChiragBhavsar]

when i do the OTA after the NVS flash memory is erase so how i can solve this problem

[Håkon Alseth]

Hi,

 

Did you use a static partition layout?

ie. do you have a pm_static.yml file in your application folder?

 

If not, you can copy it from build-folder/partitions.yml to ../pm_static.yml

 

Kind regards,

Håkon

[ChiragBhavsar]

Yes i used pm_static.yml file below is my partition and i used nvs_storage:

but when do the ota then which data i store in NVS flash was erase. 

using of below i init the nvs

#define NVS_PARTITION nvs_storage

#define NVS_PARTITION_DEVICE FIXED_PARTITION_DEVICE(NVS_PARTITION)

#define NVS_PARTITION_OFFSET FIXED_PARTITION_OFFSET(NVS_PARTITION)

static struct nvs_fs fs;

struct flash_pages_info info;

ssize_t FM_flashinit()

{

int rc = 0;

fs.flash_device = NVS_PARTITION_DEVICE;

if (!device_is_ready(fs.flash_device)) {

LOG_INF("Flash device %s is not ready", fs.flash_device->name);

return 0;

}

fs.offset = NVS_PARTITION_OFFSET;

rc = flash_get_page_info_by_offs(fs.flash_device, fs.offset, &info);

if (rc) {

LOG_INF("Unable to get page info");

return 0;

}

fs.sector_size = info.size;

fs.sector_count = 3U;

rc = nvs_mount(&fs);

if (rc) {

LOG_INF("Flash Init failed");

return 0;

}

return 1;

}

below is pm_static.yml partition  

EMPTY_0:
address: 0xfe000
end_address: 0x100000
placement:
after:
- settings_storage
region: flash_primary
size: 0x2000
app:
address: 0x10200
end_address: 0xfc000
region: flash_primary
size: 0xebe00
external_flash:
address: 0xec000
end_address: 0x800000
region: external_flash
size: 0x714000
mcuboot:
address: 0x0
end_address: 0x10000
placement:
before:
- mcuboot_primary
region: flash_primary
size: 0x10000
mcuboot_pad:
address: 0x10000
end_address: 0x10200
placement:
before:
- mcuboot_primary_app
region: flash_primary
size: 0x200
mcuboot_primary:
address: 0x10000
end_address: 0xfc000
orig_span: &id001
- mcuboot_pad
- app
region: flash_primary
size: 0xec000
span: *id001
mcuboot_primary_app:
address: 0x10200
end_address: 0xfc000
orig_span: &id002
- app
region: flash_primary
size: 0xebe00
span: *id002
mcuboot_secondary:
address: 0x0
device: DT_CHOSEN(nordic_pm_ext_flash)
end_address: 0xec000
placement:
align:
start: 0x4
region: external_flash
share_size:
- mcuboot_primary
size: 0xec000
otp:
address: 0xff8100
end_address: 0xff83fc
region: otp
size: 0x2fc
rpmsg_nrf53_sram:
address: 0x20070000
end_address: 0x20080000
placement:
before:
- end
region: sram_primary
size: 0x10000

nvs_storage:
address: 0xfa000
end_address: 0xfc000
placement:
before:
- settings_storage
region: flash_primary
size: 0x2000 # 8KB reserved for NVS
share_size:
- settings_storage # Prevents overlap with settings
settings_storage:
address: 0xfc000
end_address: 0xfe000
placement:
align:
start: 0x4000
before:
- end
region: flash_primary
size: 0x2000
sram_primary:
address: 0x20000000
end_address: 0x20070000
region: sram_primary
size: 0x70000