Answer
Yes, the Vela IF820 does support flow control but it is not enabled by default.
The default UART settings are
- 115200 baud
- 8 data bits
- no parity
- 1 stop bit
- no flow control
The UART settings can be changed using the system_set_uart_parameters command (stu)
The UART settings can be read using the system_get_uart_parameters command (gtu)