View UART Signals

To decode the UART protocol, specify uart as the protocol name for the dec subcommand and the following subcommands:

• tx:PIN: Specify the TX pin
• rx:PIN: Specify the RX pin
• baudrate:RATE: Specify the baud rate in bps (default: 115200)
• frame:NPS: Specify the frame format. N is the data bit length (5, 6, 7, 8, 9), P is parity (n:none, e:even, o:odd), S is stop bit length (1, 2). Default is 8n1 (8bit, none, 1bit stop)

baudrate and frame are optional. You must specify at least one of tx or rx.

Capture the signal when sending data from 0 to 255 on UART TX using the uart1 write command, and decode it with the la dec:uart command.

L:/>la -p 4 enable
L:/>uart1 -p 4 write:0-255
L:/>la dec:uart {tx:4} print --reso:4