[size=4][color=#000000][backcolor=white]1. Disabling interrupts can achieve mutual exclusion, but interrupts cannot be responded to at this time[/backcolor][/color][/size] [size=4][color=#000000][back
[i=s]This post was last edited by 1nnocent on 2022-7-30 09:10[/i]This routine implements the serial port loopback experiment. The FPGA monitors the uart_rx signal in real time to see if there is data.