niconiconi on Nostr: #STM32 timer trap for young players: Channel 3/4 have input edge detectors, but their ...

#STM32 timer trap for young players: Channel 3/4 have input edge detectors, but their outputs TI3FP3 and TI4FP4 are NOT physically connected to the trigger controller! You can only trigger from Channel 1/2's TI1FP1 and TI2FP2. But if you only need one input channel, there's a way to save it: enable the XOR gate meant for Hall sensors, and set unused Channel 1/2 to 0 via forced output mode (no need to attach them to actual GPIOs). #electronics