Can't find suitable tools to make a project with nRF51822

[Sergio T]

I have to develop a project for nRF51822 but I can't find tools that work. I tried SES and Eclipse and none can compile the examples of SDK12 (the last one that supports my development board - nRF51 DK. It's frustrating.

I develop FW for microcontrollers since more than 20 years so it is not lack of experience...

I need someone to help setup the suitable development tools... please!

[Jørgen Holmefjord]

Hi,

SDK 12 was released before we added SES support to the SDK. You can follow this blog tutorial to import a Keil project in SES.

Eclipse has never been a supported IDE. You can have a look at this tutorial to setup the environment.

Best regards,
Jørgen

[Jørgen Holmefjord]

Please do not mark your answer as verified answer when you are asking questions. This should only be done when you have received the answer you are looking for and is equivalent to closing the case.

Segger Embedded Studio down to v3.10f can be downloaded from Segger's webpage, by clicking "older version". This version should have the same menus and choices that the 3.10e version had. 

You can also compile any project using free GCC.

[Jørgen Holmefjord]

Did you follow the instructions in the last part of the blog/this post? 

I meant that you should upload the SES project, so I did not have to replicate all your steps to import it from Keil.

[Sergio T]

Thanks for the tip. 

I still didn't succeed to save the SES project after I import it from Keil.

I succeeded to compile and run the project! Thanks. Now next problem is the program resets when calling ble_stack_init. Probably the softdevice is not loaded or not enabled? Must I make some special thing to flash the softdevice?

[Jørgen Holmefjord]

You must follow the section of the tutorial with headline "Flashing the SoftDevice with our application".

[Sergio T]

where can I find it?

[Jørgen Holmefjord]

In the Segger Embedded Studio tutorial I linked before. Search the page for the headline I wrote below.

[Sergio T]

That part I also did: adding the full path of the softdevice to the debug add aditional file, but still doesn't work. 

I followed the complete instructions:

Still no success! There is error 04 when main.c calls 

err_code = softdevice_enable(&ble_enable_params);

the result is 04 and the error handler resets the controller.

[Jørgen Holmefjord]

0x04 means NRF_ERROR_NO_MEM. Most likely, there is not enough RAM for the softdevice. What did you put in "Section Placement Macros" configuration?

[Sergio T]

FLASH_START=0x1B000

SRAM_START=0x20001870

[Sergio T]

How can I see what size the stack has?

[Jørgen Holmefjord]

The flash size is given in softdevice migration document, but the RAM size will depend on your application configuration. Default for ble_app_blinky example in SDK 12.3.0 is (from GCC linker script):

FLASH (rx) : ORIGIN = 0x1b000, LENGTH = 0x25000
RAM (rwx) : ORIGIN = 0x20001fe8, LENGTH = 0x6018