Bootloader s120 for nRF51822 example

RE: Bootloader s120 for nRF51822 example

Petter Myhre — Wed, 15 Jul 2015 07:20:40 GMT

Great! You don't have to delete it, you can just close it.

RE: Bootloader s120 for nRF51822 example

Gabriel C. — Wed, 15 Jul 2015 06:34:03 GMT

Thanks Petter, I finally managed to solve the problem with Aryan's help from THIS thread. Mutual exclusion was not needed in the end. Thanks anyway. Should I delete this question?

RE: Bootloader s120 for nRF51822 example

Petter Myhre — Tue, 14 Jul 2015 10:54:42 GMT

With SoftDevice S120 2.1.0 the mutual exclusion between the radio and the application is disabled by default. You need to enable this to use it on a revision 2 chip. Try:

cpu_blocking_enabled.common_opt.radio_cpu_mutex.enable = 1;

RE: Bootloader s120 for nRF51822 example

Gabriel C. — Tue, 14 Jul 2015 10:08:19 GMT

Added this in main.c in my bootloader:

uint32_t opt_id = BLE_COMMON_OPT_RADIO_CPU_MUTEX;
			ble_opt_t cpu_blocking_enabled;
			cpu_blocking_enabled.common_opt.radio_cpu_mutex.enable = 0;
		
    // If stack is present then continue initialization of bootloader.
    ble_stack_init(!app_reset);
			err_code = sd_ble_opt_set(opt_id, &cpu_blocking_enabled);
    scheduler_init();

Id I did it well, still doesn't work...

RE: Bootloader s120 for nRF51822 example

Gabriel C. — Tue, 14 Jul 2015 09:47:06 GMT

Thank you! I will definitely try it out as soon as I can and I will let you know...

RE: Bootloader s120 for nRF51822 example

Petter Myhre — Mon, 13 Jul 2015 15:27:53 GMT

So you have a revision 2 chip on your custom board, and on the PCA10028 nRF51 DK you have a revision 3 chip, so there could be something there. Please see the compatibility matrix for more information. If you use SoftDevice 2.1.0 with a revision 2 chip you need to enable mutual exclusion between the radio and the application. Please see the Changes section in the S120 2.0.0 release notes for more information. It could be something to try out. If you haven't already done it.

RE: Bootloader s120 for nRF51822 example

Gabriel C. — Mon, 13 Jul 2015 13:05:17 GMT

The marking on my chip is: N51822_QFAAG3_1440BK. Started to work with SDK 7.1 and SD s120 1.0.1 and ported the app to SDK 8.1 and Softdevice S120 2.1.0 which I'm working with now. FYI, Aryan is also checking this issue and he said maybe for tomorrow he will have a solution. You can see it in my other thread here. Thank you for your help.

RE: Bootloader s120 for nRF51822 example

Petter Myhre — Mon, 13 Jul 2015 12:06:38 GMT

What are the chip markings of your nRF51822? What SDK and SoftDevice version are you using?

RE: Bootloader s120 for nRF51822 example

Gabriel C. — Mon, 13 Jul 2015 11:22:13 GMT

I tried softdevice s110 and a s110 adapted bootloader from a nrf6310 board from earlier sdk's and it works.

RE: Bootloader s120 for nRF51822 example

Petter Myhre — Mon, 13 Jul 2015 10:41:15 GMT

Strange. Does the S110 with unmodified bootloader work as well? Do you have any debug possibilites?

RE: Bootloader s120 for nRF51822 example

Gabriel C. — Mon, 13 Jul 2015 09:33:02 GMT

I can adapt all the examples from SDK to my nRF51822 board by making small changes for the clock. I do not have the 32kHZ crystal, so I use the interna clock. Bootloader is the only one I cannot adapt to my board by changing the settings as the app...

RE: Bootloader s120 for nRF51822 example

Petter Myhre — Mon, 13 Jul 2015 09:23:57 GMT

There is no difference between nRF51422 and nRF51822 except that you can't use ANT on nRF51822, so i don't think it is related to the chip swap. It seems your are saying that you can't get any examples from the SDK to work, so this is not just related to the bootloader is it? Are you able to use the debugger to see where it stops working? Does your custom board have a 32kHz crystal? Maybe this question is helpful.