Power change during transmission.

[vbspk]

Hi,

I am new to working with nrf52840 devices. I am wondering if it is possible to change the transmission power of packet during transmission several times such that some bytes of packet are transmitted with high power and some bytes are transmitted with low power. My main goal to implement capture effect in ble_1Mbit radio mode where many nodes will transmit the data synchronously and a common receiver will get bytes which are sent with high power dominating the corresponding bytes sent with low power by other nodes. 

Can I directly change the power value in NRF_RADIO->TXPOWER during transmission or should I do something else? If directly changing the value works how much time does it take to reflect the power change in actual transmission.

Any help would be appreciated.

[ketiljo]

No, that's not possible. Radio specific register are read only when the radio is started. If you change the register content, it won't be implemented until the next packet is sent. 

[vbspk]

Okay. Is there any other way to change the power during transmission like using inbuilt SPI or something like that?

[ketiljo]

No, sorry

[vbspk]

Okay. Anyway thanks for all the help ketiljo.