I would add that's not a simple wake-up pin, it's controlling the power (REGulators) for both parts, can be used for power down or hard reset (Windows-like).On the Pico-range the WL_REG_ON and BT_REG_ON pins of the CYW43 are joined and controlled by a single WL_ON signal from the RP2. So it is all or nothing, has to be on to use either.What about the wakeup pin (WL_ON). I take it this is independent of whether WiFI and/or Bluetooth is used.
As to what it takes to get Bluetooth enabled and working under Zephyr I am afraid I have no idea.
Just corrected a little mistake."Routing both Wi-Fi and Bluetooth traffic over the single three-pin SPI bus between RP2040 and CYW43439 has been a substantial engineeringchallenge[mess]..."
Statistics: Posted by gmx — Mon Sep 22, 2025 10:18 pm