config required for multiple ble devices

[phob]

Hi, I am using SDK v12.2 and gcc compiler. S132 softdevice for nrf51 controller.

I am using muliple nrf51 devices to connect each other and share sensor data with each other. I am thinking to set one as central and others are peripheral.

Now, I am able to connect 1 central with 1 peripheral. But not able to connect other peripherals. I think i need to change the following config macro(but not sure about what is RAM value i will have to set after that).

#define CENTRAL_LINK_COUNT      1                               /**< Number of central links used by the application. When changing this number remember to adjust the RAM settings*/
#define PERIPHERAL_LINK_COUNT   0                               /**< Number of peripheral links used by the application. When changing this number remember to adjust the RAM settings*/

[endnode]

Nooooooooooooooo, you cannot use S132 for nRF51. Then when adding Central roles to work in parallel: beside changing these easy things such as constants and SD init with RAM limits etc. you will indeed put all the logic to treat these links inside you application FW! You will need to store the handles and treat each event separately based on which handle it is coming from.

[Roger Clark]

Use the S130 SD

Also, you may find your device does not have enough RAM do to what you want to do.

I hope you have the QFAC version of the nRF51

[phob]

yes, I per discussion on other thread link text I will be using one central which will receive and other peripheral which will transmit the data. But i m struggling with configuring the example. for that. I tried to change but controller is reseting or not starting at all.

[Jørgen Holmefjord]

If it is restarting, you most likely get an error code. Try debugging using this method, to see what the error is. If your application is not starting, your ROM/RAM settings are propably not correct. This tutorial is a great starting point for calculating correct sizes. Please post more details on what chip version you are using, what SDK and softdevice you use, and what errors you are seeing with what configuration, if you need help with the issues.