About memory error after adding a VS service (using Embedded Studio)

[Jones]

Hi,

I have just added a VS service (PCA10040, s132 7.0.1, embedded studio v5.10a x64)and I understand I need to increase the ram given to the softdevice. However, I have try to add the followings in "Section Placement Macros".

FLASH_PH_START=0x0

FLASH_PH_SIZE=0x100000

RAM_PH_START=0x20000000

RAM_PH_SIZE=0x40000

FLASH_START=0x26000

FLASH_SIZE=0x5a000

SRAM_START=0x20002260

SRAM_SIZE=0xddc0

However, the program still crash when calling "err_code = nrf_sdh_ble_enable(&ram_start)".

The debug log is saying that I didn't change any macros

[2020-09-11_18:55:53:331]<info> app_timer: RTC: initialized.
[2020-09-11_18:55:53:331]<warning> nrf_sdh_ble: Insufficient RAM allocated for the SoftDevice.
[2020-09-11_18:55:53:331]<warning> nrf_sdh_ble: Change the RAM start location from 0x20002250 to 0x20002260.
[2020-09-11_18:55:53:331]<warning> nrf_sdh_ble: Maximum RAM size for application is 0xDDA0.
[2020-09-11_18:55:53:372]<error> nrf_sdh_ble: sd_ble_enable() returned NRF_ERROR_NO_MEM.
[2020-09-11_18:55:53:372]<error> app: Fatal error

Could you suggest how I can change them?

Jones

[Vidar Berg]

Hi,

SRAM_START and SRAM_SIZE should be named RAM_START and RAM_SIZE by default, maybe that's why the settings aren't applied in your case? And please remember to update RAM_SIZE according to the log output. The current RAM setting will lead to a hardfault if you are running the code on a pca10040 board.

Also, note that the FLASH_PH_SIZE and RAM_PH_SIZE are for the nRF52840 (1MB flash and 256KB RAM), not the nRF52832 which has 512KB flash and 64KB RAM.

Best regards,

Vidar

[Jones]

Hi Vidar,

Thank you for your quick reply.

Do you mean FLASH_PH_SIZE, FLASH_PH_START, RAM_PH_SIZE and RAM_PH_START are mutually exclusive to FLASH_SIZE, FLASH_START, RAM_SIZE and RAM_START?

Could you give me example on what should be needed for nRF52832 and nRF52840?

Do this MACROS of nRF52832 different from nRF52810?

Thanks,

Jones

[Vidar Berg]

Hi Jones,

FLASH_PH_* and RAM_PH_* specifies the total memory address range for the chip, while FLASH_* and RAM_* is for the application only.

Jones said:

Could you give me example on what should be needed for nRF52832 and nRF52840?

Do this MACROS of nRF52832 different from nRF52810?

 Please use the existing SDK examples as reference.