I took all these steps and there is no advertising

[Lola]

Using Segger , only the BLE template is advertising,All other BLE apps such as BLE_UART, will flash the leds very fast but will not show on any Apple device on the Bluetooth.

SDK13 :

I did :

1. imported the example
2. replaced thumb_crt0.s with the required one from the guides
3. added the files system_nrf52.c and ses_nrf52_startup.c
4. remove from project->build configuration - the soft device
5. added ../../../../../../components/device to the preprocessor
6. added: FLASH_START=0x1F000 and SRAM_START=0x20002000 to placement macro
7. added to additional loader[0] the path to the soft device on the SDK
8. added to preprocessor definition NO_VTOR_CONFIG
9. flash_palcment.xml was modified in its original folder ( segger installation folder), and the one in the project is as required in the tutorial.

Build and run.

What is wrong with this specific project that it won't work ? BTW: the ble template project works WITHOUT doing 7 and 8 . ( how ? )

HERE IS THE PROJECT

[Lola]

Hi, first thank you so much, second, I don't get this, how is SRAM related to flash ? how is this thing works I learned that flash is quite different from RAM :)

[Lola]

Ok SO they are not related, the flash always start in the same spot( why not 0 ? ) and the SRAM will start according to the size of soft device . is that correct ?

[Lola]

So how can you calculate according to his answer the size if inside your code you change things that affect it? if I add 10 services, then it has to be larger, how would i know ?

[Jan Tore Guggedal]

The addresses that you set are for the application. The SoftDevice will use the addresses up till those addresses. You can check my updated answer on how you can get the required SRAM start address in Segger Embedded Studio if you change things in the application. Also see the post I linked to where Bjørn explains how this works.

[Lola]

Thank you ! Jan you did so much for me and also Daniel, you guys are great ! I am spending days on this and it's the hardest thing I'v done as an engineer. THANK YOU !