SEGGER Embedded cannot initialize nfr52 SoftDevice

RE: SEGGER Embedded cannot initialize nfr52 SoftDevice

bjorn-spockeli — Wed, 22 Feb 2017 15:17:21 GMT

If you step into softdevice_enable(), then you can see which RAM start address the SoftDevice needs by looking at the app_ram_base variable which is returned by sd_ble_enable(p_ble_enable_params, &app_ram_base).

RE: SEGGER Embedded cannot initialize nfr52 SoftDevice

ndarkness — Wed, 22 Feb 2017 14:45:07 GMT

@Bjørn Spockeli , I understand, I have tried the same procedure but now with other example, ble_app_hrs_pca10040_s132 and I see exactly the same error that I mentioned in my original post, error_code 0x00000004 when invoking softdevice_enable(). This time I have used FLASH_START=0x1F000 SRAM_START=0x20002C38 as the .ld for that application says, should I set this parameters as well in the memory map macros field under the build ?

RE: SEGGER Embedded cannot initialize nfr52 SoftDevice

bjorn-spockeli — Wed, 22 Feb 2017 13:19:42 GMT

@ndarkness : You should not have to specify the length as long as you do not plan to use our bootloader.

RE: SEGGER Embedded cannot initialize nfr52 SoftDevice

ndarkness — Wed, 22 Feb 2017 07:22:30 GMT

Thanks Daniel, I will try it. Do you know whether or not it is necessary to add the LENGTH in the memort mapping, if so, how I should do it? With the same macro?

RE: SEGGER Embedded cannot initialize nfr52 SoftDevice

Daniel Wang — Tue, 21 Feb 2017 20:35:05 GMT

You should use SRAM_START=0x20002128. You can find the correct settings for each example in linker script e.g ble_app_uart\pca10040\s132\armgcc\ble_app_uart_gcc_nrf52.ld

RE: SEGGER Embedded cannot initialize nfr52 SoftDevice

ndarkness — Tue, 21 Feb 2017 20:32:44 GMT

I used FLASH_START=0x1F000 SRAM_START=0x20002000 in the Linker->Section Placement Macros, should I import section placement in my project if I have made those settings?

RE: SEGGER Embedded cannot initialize nfr52 SoftDevice

Daniel Wang — Tue, 21 Feb 2017 20:29:01 GMT

What values did you use for flash start and ram start(memory mapping)?