SIO Command $EB Set UART Baudrate

This is a command for Device $70 - The FujiNet Device itself (see SIO-Commands-for-Device-ID-$70).

Set UART baudrate ($EB)

Description

Set UART baudrate from a set of available speeds. This command is useful when SIO is used from a PC/MCU in order to provide a fast communication between devices.

DAUX1 specifies speed index.

Parameters

DCB	Value
DDEVIC	$70
DUNIT	$01
DCOMND	$EB
DAUX1	speed index
DAUX2	0x00

DAUX1	Description
0x00	19200 bps
0x01	38400 bps
0x02	57600 bps
0x03	115200 bps
0x04	230400 bps
0x05	460800 bps
0x06	921600 bps

Notes

A possible approach to change baudrate from MCU/PC:

1. set MCU/host baudrate with default baudrate 19200 bps
2. reset ESP32 with GPIO (default UART is configured at 19200 bps)
3. send set_baudrate command (0xEB)
4. change MCU/host baudrate with new value