Setting the GAZZELL Transmission power to 500 meters using BT832X module

[Aditya Narayan Tripathi]

I am using Fansttel BT832X SoC with SDK 14.2 ( Soft Device Version S132 5.0 ). i have configured PA/LNA mode in  BT832X module. If i use only BLE advertisement i can see the  device name upto 200 meters. i wanted to transmit the data using GAZZELL protocol upto 100m range. i am using the same procedure as i used in BLE advertisement. The BT832X module is unable to transmit the data upto 100m range using the GAZZELLE protocol, but i am able to see the advertisement in nrfconnect android mobile app more than that range. i have two questions :

1- Can we increase the GAZZELL transmission range upto 500 meters using Fansttel BT832X SoC.??? 
     if yes, than please suggest me the alternative way to transmit the data upto 100 meters using GAZZELL protocol with Fansttel BT832X SoC. 

2- is the Fansttel BT832X SoC module  having  support to communicate with two same device each of them having BT832X using GAP/GATT???
     Does it have support for GAZZELL also with a range of 500 meters???

[Kenneth]

The Gazell protocol will handle the output for both LNA and PA control (but you must specify 2x gpiote channels and 4x ppi channels that the Gazell protocol can use), if this doesn't work then I can report it. Have you tested transmission and the pins doesn't toggle?

[Aditya Narayan Tripathi]

Hi Kenneth, i have configured 2x gpiote channels and 4x ppi channels accordingily.

/**< PA/LNA structure configuration. */
static nrf_gzll_pa_lna_cfg_t m_pa_lna_cfg = {
.lna_enabled = GZLL_LNA_ENABLED,
.pa_enabled = GZLL_PA_ENABLED,
.lna_active_high = GZLL_LNA_ACTIVE_HIGH,
.pa_active_high = GZLL_PA_ACTIVE_HIGH,
.lna_gpio_pin = GZLL_PA_LNA_CRX_PIN, //19
.pa_gpio_pin = GZLL_PA_LNA_CTX_PIN, //20
.pa_gpiote_channel = GZLL_PA_LNA_TX_GPIOTE_CHAN,
.lna_gpiote_channel = GZLL_PA_LNA_RX_GPIOTE_CHAN,
.timer = GZLL_PA_LNA_TIMER,
.ppi_channels[0] = GZLL_PA_LNA_PPI_CHAN_1,
.ppi_channels[1] = GZLL_PA_LNA_PPI_CHAN_2,
.ppi_channels[2] = GZLL_PA_LNA_PPI_CHAN_3,
.ppi_channels[3] = GZLL_PA_LNA_PPI_CHAN_4,
.ramp_up_time = GZLL_PA_LNA_RAMP_UP_TIME
};

After making these changes also it's not working. i have tested nRF52832 with seperate SKY66112-11E module available on the following link:
https://www.digikey.in/product-detail/en/skyworks-solutions-inc/SKY66112-11EK1/863-1866-ND/6564756

i have make a hardware setup according to this schematic

https://www.notwired.co/datasheets/notwired/C-nRF52-SKY66112_V1.1%20SCH.pdf.

In both the cases with using BT832X and nRF52+SKY66112, i am not getting a range more than 40 meters. Can you please provide the working solution????????

[Kenneth]

When posting new questions and comments, please don't click on 'Suggest as answer'. If you click 'Suggest as answer' then we think you have found an answer.

I can check if someone internally have tried your configuration. Maybe you can send a picture of your setup in the meantime so I can see how you have connected the different boards and modules. Both picture of device and host if possible.

[Aditya Narayan Tripathi]

i have make a hardware setup according to this schematic

https://www.notwired.co/datasheets/notwired/C-nRF52-SKY66112_V1.1%20SCH.pdf.

In both the cases with using BT832X and nRF52+SKY66112, i am not getting a range more than 40 meters. Can you please provide the working solution????????

[Kenneth]

The test code for PA/LNA setup is available in the gzll_ack_payload/device example (SDKv15). By default, this example operates in normal mode (without PA/LNA module), but you can set the GZLL_PA_LNA_CONTROL define to any non-zero value to use the frontend module. This has been tested with SKY66112.

Best regards,
Kenneth