multilink central

[wiki]

Hi NORDIC

I download the example of multilink central (S120) into nrf51822 . I do not know why it can not work ? My SDK is s110_nrf51822_7.0.0_softdevice . Please help me ,thanks！

[Susheel Nuguru]

Hi Wiki,

your softdevice and and SDK should be compatible. S120 SDK examples will not work with s110 softdevice. Download both S120 SDK and S120 softdevice from www.nordicsemi.com/.../

[wiki]

Hi Aryan

Great,thank you so much !

One more thing need your help . multilink central (S120) is a receiver , right ? Can receiver(the example of multilink central what you provide ) work under low power mode ?

[Susheel Nuguru]

Hi Wiki,

if you use S120_softdevice then you can initialize the device either as Central or Peripheral (but not both). Copy and Paste from the S120_V2_SDS

"The S120 SoftDevice is a Bluetooth low energy (BLE) combined Central and Peripheral protocol stack solution. That is, the SoftDevice can be initialized to run either as a Central protocol stack or as a Peripheral protocol stack. When initialized as a Central, it supports up to eight simultaneous Central role connections and an Observer. When initialized as a Peripheral, is supports a Peripheral connection and a concurrent Broadcaster. The SoftDevice integrates a low energy controller and host, and provides a full and flexible Application Programming Interface (API) for building Bluetooth low energy System on Chip (SoC) solutions."

what do you mean by low power mode?

[wiki]

Hi Aryan

You mean it will be a central that can receive and send data if i download central protocol stack and a sender that only can send data if i download peripheral , right ?

My low power mode is that receiver can sleep when there is nothing to be received and wake up when something need to be received

By the way , I can not find S120 SDK but SDK v1...8 .

[Susheel Nuguru]

you can configure the same softdevice to be either a central that can send and receive data or configure it to be a peripheral. One you have initialized it works in that role. The softdevice always works in low power mode and the radio/CPU always sleeps when there is no activity scheduled. You should be able to find the SDK for 120 at the same place where you downloaded SDK for S110. Adding link to the download site developer.nordicsemi.com/.../ softdevice binaries for the chosen sdk can be found at nRF51_SDK_8.0.0\nRF51_SDK_8.0.0_5fc2c3a\components\softdevice