16bits to 128bits to 16bits convert problem

RE: 16bits to 128bits to 16bits convert problem

jpo38 — Fri, 03 Jul 2015 14:04:07 GMT

I posted a similar report here: devzone.nordicsemi.com/.../ (with easier to understand explanation).

It was answered as being a bug in the driver by Hung Bui.

Note that I also posted a workaround in the comment:

Waiting for a fix, I simply saved the mapping between types and corresponding 128bits mask on my side and do the resolution myself instead of calling sd_ble_uuid_encode...so I'm not stuck with that anymore. But it would be nice to have it be fixed for

RE: 16bits to 128bits to 16bits convert problem

jpo38 — Thu, 02 Jul 2015 12:20:58 GMT

Im' sorry but I could not make this ble_nus code work on PC...

RE: 16bits to 128bits to 16bits convert problem

Hung Bui — Thu, 04 Jun 2015 08:43:18 GMT

@jpo38: Sorry for late response, my comment was missing. The BLE driver work in the way that it use the serialization firmware running on the nRF51 to transfer the command from PC to the softdevice on nRF51. The result of a command should be the same either if the command is called from the chip or from the PC. Maybe you can try to port the ble_app_uart to used with ble-driver-win for testing ?

RE: 16bits to 128bits to 16bits convert problem

jpo38 — Mon, 01 Jun 2015 12:39:46 GMT

Maybe I'm missing something. But the ble_nus.c you're pointing me to is firmware code rigth? I'm experiencing this issue in my software on PC, when trying to connect a remote device using 128bits UUIDs...

RE: 16bits to 128bits to 16bits convert problem

Hung Bui — Mon, 01 Jun 2015 09:28:46 GMT

@jpo38: I did a quick test here but couldn't reproduce your issue. I added this line

	err_code= sd_ble_uuid_encode(&ble_uuid, &len, restored128.uuid128);

to line 256 in ble_nus.c (SDK v8.1) in the ble_app_uart example, where we also declare a 128 bit UUID base, and I got the len = 16 and the restored128.uuid128 has the 128 bit UUID array.

Could you please make sure you have added the uuid successfully ? What was your uuid_type ? Could you also try with the ble_nus.c ?