No source available for "0x6d2" ???

[bigturtle]

Hi everyone, I'm working on the nrf51822 QFAAH I tried to flash the ble_app_uart example and it didn't work. So I debug it and it stops here

As you can see in the picture there is nothing at 0x6d2

I can build it and flash it, I wrote my linker ldscript to be able to flash a chip with 16kB of RAM and 256kB of Flash memory. I changed nothing in the main.c. In the memory I know the softdevice S130 v2.0.1 ends here 0x1b000 so my program stops in the softdevice part ???

Please I need some help to make this work...

[bigturtle]

this is why it stops... in main.c in the function buttons_leds_init the function bsp_init returns 8 and that error code means :

Invalid state, operation disallowed in this state (judging from nrf_error.h)

Can I have some explanation on this error please?

[bigturtle]

Ok now I'm stuck in SVCALL(SD_SOFTDEVICE_ENABLE, uint32_t, sd_softdevice_enable(nrf_clock_lf_cfg_t const * p_clock_lf_cfg, nrf_fault_handler_t fault_handler)) in ble_stack_init().

When I step into this function it stops and shows me this:

No source available for "0x750" 

I tried to use internal RC clock but it didn't work...

[Håkon Alseth]

Could you share one example that does not work at your end (just .zip the whole example)? one of the example applications from any SDK that you've altered should do. 

[bigturtle]

can you explain me how to send it please ?

[Håkon Alseth]

You can .zip the whole example and attach it to your post when replying (Insert -> Insert image/video/file)

[bigturtle]

ble_uart_test_sdk11.zip

like this ?

[Håkon Alseth]

Thanks for uploading the project.

You're calling printf in your project, but you do not have retarget.c included in your build. This will cause issues, as the printf call will rely on finding _write() and _read(), and when it does not; it will go into a undefined state.

In addition, you have using UART with flow control enabled:

    const app_uart_comm_params_t comm_params =
    {
        RX_PIN_NUMBER,
        TX_PIN_NUMBER,
        RTS_PIN_NUMBER,
        CTS_PIN_NUMBER,
        APP_UART_FLOW_CONTROL_ENABLED,
        false,
        UART_BAUDRATE_BAUDRATE_Baud115200
    };

This requires that you open the terminal before the application will continue.

Could you try adding retarget.c to your build (or comment out the printf() call) ?

For debugging purposes, you can also disable the flow control, as this would require you to open the terminal in order for the application to run properly.

Best regards,

Håkon

[bigturtle]

I commented out the printf() call and I disabled the flow control but it did not work... My device is still invisible on my phone.

[Håkon Alseth]

I am not able to compile your project successfully, so I have to debug it based on your .out file, and it looks like you have optimization enabled. How does your .ld file look like? The .ld script was missing from your .zip file. From your .map file, it looks like the RAM_BASE start address is 0x20001870, which is too low. You should be at 0x20002080 for s130 with 1 peripheral, and 0 central roles.

Could you try adjusting your RAM start address to match other SDK examples and see if that works?

Cheers,

Håkon

[bigturtle]

I changed the RAM_BASE start address as you suggest and it works ^^.

Thank You