Why the IRQ needs so many cycles
Hardware & HAL: STM32F767ZI Nucleo 210MHzCube MCU Package 1.15Application USB (12Mbit FS) to UART bridge 115200 baud, 8bit 1s 1s, full duplex test (RX-TX bridged)Tested:The test on /dev/ttyACM0 is running without any errors on all packet 2-64KB sizes...