What does the following code do?case(SW[3:0]) 4'b0000: UART_TXD = RS422_1_TX; 4'b0001: UART_TXD = RS422_2_TX; 4'b0010: UART_TXD = RS422_3_TX; 4'b0011: UART_TXD = RS422_3_TX; ... verilog challenged:oops:
Hi:This is an 16 to 1 multiplexer or mux. Based on the 4-bit selection term SW, the output is connected to the input where SW matches the case term 4'b0000, 4'b0001 etc. So if SW = 4'b0010, the output UART_TXD = input RS422_3_TX.
I am using an eval board. I am trying to communicate with a PC via the RS232.Can I just use the switches to send an 8 bit signal? It doesn't let me just assign the switches as an array to the UART TX? What am I doing wrong? Thanks,