ble_stack_init() error code 4: Insufficient RAM allocated for the SoftDevice

RE: ble_stack_init() error code 4: Insufficient RAM allocated for the SoftDevice

Nguyen Hoan Hoang — Mon, 27 Aug 2018 23:37:25 GMT

What is showing is what you set in your ld. If your ld setting is less than require by SD, it will update the ram_start with the correct value. If it is already bigger than need it, it won't change it. I believe you made a typo mistake by adding an extra f to the address.

3ffdc = 255KB which is much bigger then 64KB ram limit.

3fdc = 15KB which is more likely the correct value.

RE: ble_stack_init() error code 4: Insufficient RAM allocated for the SoftDevice

run_ar — Mon, 27 Aug 2018 19:19:04 GMT

What is the ret_code returned by sd_ble_enable in this case? And how have you configured the SD?

RE: ble_stack_init() error code 4: Insufficient RAM allocated for the SoftDevice

KEITH — Mon, 27 Aug 2018 16:11:55 GMT

I'm confused now. Shouldn't we take the value from p_app_ram_start that we find in debug and use that value to update the value in the "RAM" line in the .ld file? Is so, then the above debugger screen shot is showing 0x2003ffdc not 0x20003fdc. Please help me understand.

RE: ble_stack_init() error code 4: Insufficient RAM allocated for the SoftDevice

Nguyen Hoan Hoang — Mon, 27 Aug 2018 01:24:22 GMT

exactly, your ram setting is wrong. It should be 3fdc not 3ffdc

RE: ble_stack_init() error code 4: Insufficient RAM allocated for the SoftDevice

KEITH — Mon, 27 Aug 2018 00:56:25 GMT

Here is a snapshot from eclipse debugger showing p_app_ram_start which is the value I am supposed to use:

RE: ble_stack_init() error code 4: Insufficient RAM allocated for the SoftDevice

Nguyen Hoan Hoang — Sun, 26 Aug 2018 23:50:29 GMT

are you sure the required ram start is 3ffdc and not 3fdc ? 3ffdc is beyond the total ram size of 0x10000 (64KB).

RE: ble_stack_init() error code 4: Insufficient RAM allocated for the SoftDevice

KEITH — Sun, 26 Aug 2018 23:07:09 GMT

Hello Nquyen, Yes I'm sure it is the correct .ld file because once I make the change to RAM Origin to the new value, 0x2003ffdc, the program won't event start in debug. If I change RAM Origin back to the previous value, 0x200022e0, the program will at least start in debug and execute up nrf_sdh_ble_enable command in ble_stack_init function.

RE: ble_stack_init() error code 4: Insufficient RAM allocated for the SoftDevice

Nguyen Hoan Hoang — Sun, 26 Aug 2018 20:57:32 GMT

Normally it should work. Check to see if the .ld you modified is actually the one linked with your project.