вт, 18 февр. 2025 г. в 13:02, Wolfram Sang <wsa@xxxxxxxxxxxxxxxxxxxx>: > > > > Thanks. But isn't it possible to attach an interrupt handler to SCL > > GPIO? Or do you mean that the latency for IRQ handling is too high? > > Way too high for most systems. I made the in-kernel sloppy GPIO logic > analyzer. From that experience, even with constant polling using an > isolated CPU core, you would need at least a dedicatded 300MHz core to > monitor 100kHz. With interrupts, it will probably be a magnitutde more. > I scrapped that idea for the above analyzer, too slow. > Thanks for sharing this. Initially, I didn't realize this. -- With best regards, Matwey V. Kornilov
