NRF21540 and BLE

[Nahan_Trogn]

Hi,

I can use nrf21540 to enhance TX power and can see it result, it work fine (The value RSSI in nrfConnect app increase by about 20dbm)

Now, I want to combine both Tx and Rx to use with nrf21540.

As a example in NRF52 v17.0.2, I can see 2 examples about use nrf21540, but they dont use with softdevice.

When I combine 21540_library with ble, it conflicts each other (in radio.h)

So, I dont use this library, I config myself.

I read on the forum that I should toggle between Tx and Rx to enhance Tx and Rx power, but when to toggle? I use timer 1ms, 10ms, ... to toggle nrf21540 but the signal is worse than when only nrf52832 work. I also use https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/pa-lna-support-in-s132 pa,pln pin to toggle Tx and Rx but the result still worse.

In summary, I want to use nrf21540 to enhance both Tx and Rx for NRF52832 in BLE/BLE Mesh mode. How can I achieve this?

Tks in advance.

[Einar Thorsrud]

Hi,

The turnaround time for the current revision of nRF21540 is too long for BLE, so it is not possible at the moment. I recommend you contact sales for information on when and how this will be solved.

[Nahan_Trogn]

You mean that timing to toggle Tx/Rx dont follow the BLE timing? Tks for the reply, wish you have a good day.

[Einar Thorsrud]

Yes, that is correct. In practice that means that the current revision is not compatible with BLE.