SW_CTRL0 invert logic

[Yaniv933]

using ncs 3.1.1 how can we invert SW_CTRL0 logic we using a different RF SWITCH then DK 

"Does register 0xA4002DC8 (SLEEP_CTRL_GPIO_CTRL) on nRF7002 have a bit to invert the SW_CTRL0 output polarity? We need SW_CTRL0=1 for BLE path, SW_CTRL0=0 for Wi-Fi path."

is this correct ?

[Håkon Alseth]

Hi,

 

No, there is no option to directly invert the signal.

The SW_CTRL0 pin will be set high when it is used by nRF7002, and low otherwise. This polarity is this way to ensure proper operation if the nRF7002 is shut down.

 

On the DK, we use a mosfet to invert this signal:

 

Kind regards,

Håkon

[Yaniv933]

as you are well aware it is not mentioned in the Product Specification .saying that it is programable is very miss leading 

do you have any plans in future FW to support this function?

[Håkon Alseth]

Hi,

 

I am sorry that our documentation is misleading. I will report this back to the wifi team.

Yaniv933 said:

do you have any plans in future FW to support this function?

There are no current plans for this, as inverting the signal will cause issues if the nRF7002 is powered off (ie. BUCKEN=0). Keeping this signal high when nRF7002 is powered off will cause back-powering, therefore it is recommended that you invert the signal via a transistor instead.

 

Kind regards,

Håkon