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]

Hi,

 

Q1: Could you ensure that you have set the clock_lf_cfg equal to what is stated in this thread?

Q2: Are you always stuck in the same address space (looping in 0x750)?

Q3: Are you able to run any other ble example successfully (remember to change LFCLK source first!)?

Cheers,

Håkon

[bigturtle]

Thanks for your reply

Q1: Yes

Q2: Yes

Q3: No

This turned out to be a big headache so I tried to change SDK and SD

And... I made this work 2 days ago by using SDK 10.0.0 and S130 v1.0.0... but these are old versions.

Does it mean all of the SDK and softdevice which are compatible with rev. 3 judging from this

are not compatible with every version of rev 3 ?

[Håkon Alseth]

Revision 3 includes all variants (128k/16k, 256k/16k, and 256k/32k), it is just that SDK 12 has projects for the "nRF51x22_xxAC" variant, which is the one with 32k RAM.

You are stuck in the softdevice MBR, which is seldom a good sign. Could it be that you have an older bootloader present in flash and UICR? I see that you're using openOCD, do you have the ability to do a erase_all from that debugger?

Here's the sequence for issuing an erase_all to a nRF51 device: https://devzone.nordicsemi.com/b/blog/posts/recover-the-nrf51-when-nrjprog-and-nrfgo-studio-co

Cheers,

Håkon