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I have an application that is very noise sensitive, and I would like to gate of my detector when the BLE RF is broadcasting. Ideally this would be accomplished via a GPIO mapped to the RF broadcast so I could use this signal as a gate. Is there any way to do this? I don't want to gate for longer than required, so a hardware signal directly tied to the RF enable would be ideal. A software solution where I check a flag is not as good as there will be latency.
What would be the closest suggestion that might come close? Is there possibly an interrupt that gets triggered that I can use to drive a gpio in? I guess I could monitor current, or if there is the Bluetooth counter can there be a way to sync a pwm output to that? Or are you saying there is nothing that gets triggered that is accessible to me that is synchronous. With the rf output (or) nearly synchronous (say within 100us).