https://slavyanski.net/sb2020/story.php?title=the-most-widespread-mistakes-people-make-with-webcam-sec-3 For example, bit two may possibly be established this means that the serial port has concluded shifting a byte in or out but if you deliberately are not working with interrupts for your serial port operations, you would not have had the corresponding bit in the IER (interrupt help sign up) set, this means that the "change done" status was not what pulled the IRQ line down. Thu, 13 Oct 2022 02:11:51 UTC en