device-crash-when-adding-new-ble-service ble-services-beginner-tutorial

[Geoffroy]

hi,

I'm trying to add a new BLE service to my device. I've followed the instructions in tutorial : devzone.nordicsemi.com/.../ble-services-a-beginners-tutorial, up to step 4, but the device is not advertising. In fact, the software seems to fail entirely

to precise, device is working and advertising before i try to add a service

i have err_code = 0x04 no memory for operation

i don't understand how should i change values on file ble_app_template_gcc_nrf52.ld, now i have default values  :

MEMORY
{
  FLASH (rx) : ORIGIN = 0x26000, LENGTH = 0xda000
  RAM (rwx) :  ORIGIN = 0x20002210, LENGTH = 0x3ddf0
}

 i tryed to change values like increasing ram but it didn't work, i don't know which values to use.

for p_app_ram_start i have 0x2003ff3c (value found in debug mode)

thank you for help,

Geoffroy

 devzone.nordicsemi.com/.../134131

[Hakon]

Hello,

try these values for RAM;

Start - 0x20002220

Size - 0xDDE0

[Geoffroy]

thank you, i don't have err_code for no_memory anymore.

it still didn't advertise much more so i had to change a define

instead of : #define BLE_GATTS_VLOC_STACK         0x01

i wrote :

#define BLE_GATTS_VLOC_STACK         0x02

(same value as for BLE_GATTS_VLOC_USER)

because i read on nordic devzone to replace all BLE_GATTS_VLOC_STACK  by BLE_GATTS_VLOC_USER.

Right now i'm advertising with this solution.

I'm not totaly convinced by this solution, what do you think ?

[Hakon]

It just means that attribute data is being stored in user memory rather than in the soft device. I think the solution seems fine.

[Geoffroy]

ok thank you i understand better,

this ticket can be close except if someone else disagree

[Hakon]

Hello again. I correct myself. The solution that you found on devzone seems fine. What you did there is not what the devzone post said. You need to change BLE_GATTS_VLOC_STACK to BLE_GATTS_VLOC_USER, not change the value.