First application load

RE: First application load

Sai — Thu, 26 Jun 2014 22:02:28 GMT

As soon as you pushed the ble_app_hrs to nrf51822, either LED_0 or _1 (i forget which) should light up. Did that happen?

If you use Keil to open and compile the ARM project under C:\Keil_v5\ARM\Device\Nordic\nrf51822\Board\pca10001\s110\ble_app_hrs\arm, I don't think you need to change anything to make it compile in Keil.

Otoh, if you want to use to gcc and eclipse to make and deploy ble_app_hrs, then you will have to

Create Makefile.posix in Source\templates\gcc
Create a folder called gcc inside ble_app_hrs. Then create a makefile in gcc with this content: gist.github.com/.../6855716
Then make and deploy to nrf51822 like you would any other gcc project.

RE: First application load

sd — Wed, 25 Jun 2014 21:00:11 GMT

I managed to program the device, but the ble_app_hrs design doesn't seem to work on the chip. It doesn't advertise. Have you changed anything in the design to make it work?

RE: First application load

Sai — Wed, 25 Jun 2014 16:57:26 GMT

I'll try to share what I have figured out in the past two days of playing with the nrf51822. You certainly don't need to program the bootloader but you do need to program at least one GATT service.

I presume you have the softdevice somewhere on your computer. I used s110 v6.0.0.
You will have to use Keil to compile at least one GATT service. I compiled ble_app_hrs from C:\Keil_v5\ARM\Device\Nordic\nrf51822\Board\pca10001\s110\ble_app_hrs. Without this step, even if you deploy the softdevice to nrf51822, you won't see the board from, say, Nordic's iOS app (available in the App Store.)
I tried to use keil to deploy the softdevice and the GATT service to the board but it kept failing. The error message is covered here: devzone.nordicsemi.com/.../
Then I used nRFGo to deploy the softdevice first followed by the ble_app_hrs GATT service.

At this point, LED_0 blinked a few times and the Nordic app in the app store was able to detect the board as a Heart Rate Monitor.

Hope this helps.