0x0d System

System commands

0x01 - Get Version

Returns the version of the probe.

Table 1 - Get Version cmd

Byte	0
Description	0x01

Table 2 - Get Version response

Byte	0	1	2
Description	major	minor	id

Major/Minor

Major and minor version of the probe, major.minor.

ID

Probe ID code

Extracted strings from official toolchain:

• 0x01: WCH-Link-CH549 (RV)

• 0x02: WCH-LinkE-CH32V307 (RV)

• 0x03: WCH-LinkS-CH32V203 (RV)

• 0x04: WCH-LinkB (RV)

0x02 - Connect

Table 3 - Connect cmd

Byte	0
Description	0x02

Table 4 - Connect response

Byte	0 .. 3
Description	CHIP ID

On error the response is of group 0x55 Error with still unknown format

CHIP ID

The chip ID of the connected chip. MSB first.

0x03 - Unknown

no clue.

0x04 - Get Memory Info

RAM size, flash size, addr.

0xff - Close

Terminate connection (unsure what this does)