Control nRF51822 led with mobile app

RE: Control nRF51822 led with mobile app

shivali singh — Thu, 26 Apr 2018 06:58:06 GMT

if we can control three led by ble_app_blinky,how pls tell me

RE: Control nRF51822 led with mobile app

Ole Bauck — Fri, 29 Jul 2016 10:23:44 GMT

The application should have all the correct settings when you first open it from the SDK. See here on how to download an application with SoftDevice.

RE: Control nRF51822 led with mobile app

tharun — Thu, 28 Jul 2016 05:52:32 GMT

This is the image of the SoftDevice Project file seen in my keil 5. I have seen some error in the files, they are clearly visible in the screen shot I uploaded. Even though with this error I could build and download the SoftDevice to the module. Is this the issue? if so, how to solve them?

This is the image of Appliction Program project file seen in Keil 5.

RE: Control nRF51822 led with mobile app

Ole Bauck — Wed, 27 Jul 2016 14:31:57 GMT

Ok, then this should be the RAM and ROM adresses and sizes:

IROM1:

Start: 0x18000
Size: 0x28000

IRAM1:

Start: 0x20002000
Size: 0x6000

Again, it will be easiest just to download a fresh copy of the SDK. You may also want to use the newest SDK which is version 11.

RE: Control nRF51822 led with mobile app

tharun — Wed, 27 Jul 2016 13:21:09 GMT

I am trying to build the project from nRF51_SDK_10.0.0_dc26b5e. And the ble_app_blinky has s110_nrf51_8.0.0_softdevice and the name of application program am using is nrf51422_xxac_s110.

RE: Control nRF51822 led with mobile app

Ole Bauck — Wed, 27 Jul 2016 11:29:50 GMT

The error you are getting is when you try to flash in an area where the SoftDevice is located.

Which SDK version and SoftDevice version do you use? I assumed SoftDevice version S130 v2 in my answers (ROM and RAM addresses are for this SoftDevice).

RE: Control nRF51822 led with mobile app

tharun — Wed, 27 Jul 2016 11:12:30 GMT

I couldn't download an application program to nRF51822 after loading the SoftDevice using keil 5 as it always pop up with Error: Flash download failed - "Cortex-MO". To your notice I am using BLE400 motherboard. Do you have some solutions?

RE: Control nRF51822 led with mobile app

Ole Bauck — Tue, 26 Jul 2016 14:10:57 GMT

It may be best if you just download a fresh copy of SDK again as it will have the correct settings, but if you want to try this is the correct ROM and RAM start address and size (for 256KB flash and 32KB ram version of the chip):

IROM1:

Start: 0x1B000
Size: 0x25000

IRAM1:

Start: 0x20002080
Size: 0x5F80

RE: Control nRF51822 led with mobile app

tharun — Tue, 26 Jul 2016 13:47:30 GMT

As you suggested, I first I download the SoftDevice to the board. After that i tried downloading the program Application, but unfortunately I got an Error: Flash download failed - "Cortex-MO".

So I tried giving a IROM1 space for SoftDevice 0x00 and 0x16000 and for program Application I gave IROM1 0x18000 andd 0x39000. It was flash load finished without any error but the device was not advertising. Do you find some issue in flashing or can u suggest some methords to solve this issue. thanks in advance.

RE: Control nRF51822 led with mobile app

Ole Bauck — Tue, 26 Jul 2016 10:58:49 GMT

You need to flash the SoftDevice on the board first. The precompiled hex file you used already has the SoftDevice in it. See here for how to run an application that uses SoftDevice.

RE: Control nRF51822 led with mobile app

tharun — Mon, 25 Jul 2016 16:12:55 GMT

Hi sir,

Thank you for your response. I flashed the hex file of ble_app_blinky to my nRF51822 motherboard BLE400 successfully. But when I am trying to build the application using Keil 5 project document, I cannot successfully execute it. This happens to me always as I couldn't execute any of the sdk ble_peripheral/central examples successfully. Is that my setting issue or something else? Please help me to figure it out.

This is how i set it up: Clicking on option for target 'Device' I selected nRF51822_xxAA and set the debug used. I left the 'Target' within the option as default. Then I select the debug option and use J-Link and followed settings I added the programming algorithm 'nrf51xxx'. In utilities I give a tick in checkbox 'Update the target before Debugging'. After I build and Downloaded it to the moduled but it was not advertising anything.

What i noticed in the build file is that, the size of the .hex file generated was too less compared to the .hex file given in the sdk. I am struck at this and can u help me to solve this?? Or just suggest me some ways to solve this issue.

RE: Control nRF51822 led with mobile app

Ole Bauck — Mon, 25 Jul 2016 15:08:59 GMT

The easiest way is to take the ble_app_blinky application and control the LED using the nRF blinky app.