hr example wont work on top of soft device, s110-s120?,soft device?

RE: hr example wont work on top of soft device, s110-s120?,soft device?

Gabriel — Fri, 04 Jul 2014 18:14:18 GMT

Thanks again Anders! I see, yes I am more used to only having one layer of programming. Here seems that there are a bunch of different layers. I will check that out!

RE: hr example wont work on top of soft device, s110-s120?,soft device?

Anders Strand — Fri, 04 Jul 2014 06:38:51 GMT

If you want to make your own services to create them in your application. Your services will use the softdevice functions to communicate over BLE. Have a look at the Led-Button example (i think its a nan36 app note) to understand how services work. To sum up: The softdevice is something that is separate from your code, but which you can use by calling its function calls. These functions always start with sd_some_function..... The softdevice term is quite hard to grasp, and i struggled myself in the beginning. Just think of it as a separate unit that handles all the BLE rules and protocols for you.

RE: hr example wont work on top of soft device, s110-s120?,soft device?

Gabriel — Thu, 03 Jul 2014 21:47:35 GMT

Thanks Anders, so after trying again without success I noticed that yesterday I received an email from Nordic announcing a new version of the SDK. I installed it and it work, apparently the examples were not supposed to work on Keil 5.

Thanks for the comments on soft devices, I am reading a book on BLE but still sometimes not sure about practical stuff. So if I wanted to define my own services using different characteristics, I should create my own .h and .c files equivalent to a SoftDevice? Thanks again!

RE: hr example wont work on top of soft device, s110-s120?,soft device?

Anders Strand — Thu, 03 Jul 2014 09:07:36 GMT

A Softdevice: A bluetooth library pre-programmed to a certain memory space on the chip. This is a more fail-safe alternative to including .h and .c files like you normally would.

Softdevice 110: Can only be a "slave" or "peripheral" device, which can be connected to from "centrals" or "masters" like a smartphone.

Softdevice 120: Can only be the "central" or "master", and can therefore connect to another device running 110.

Your flash problem is probaly caused by wrong memory settings in keil. Launch nrfGo studio and find your device. Look at the memory spaces on the left. These addresses and sizes must correspond to your target options in keil.

Set "IROM1 Start" to "Application Address" from nrfgo. Set the "IROM1 Size" to the hex value of Application size shown in nrfgo. In my 110 it is 176 kB, or hex value 2C000 (176*1024->hex).

If this doesent work. make sure that you are using up-do-date versions of both keil, J-LINK and the nrf SDK.

RE: hr example wont work on top of soft device, s110-s120?,soft device?

Gabriel — Wed, 02 Jul 2014 22:08:48 GMT

bump! Any help?