MIC3422 ChangeLog(vLinker FS BT uses MIC3422 chip)
chebotong Technology Co., Ltd
https://www.vgatemall.com/

v2.3.22 - 2025/06/21
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Changes:
  - The ATTA hh command also modifies the received CAN protocol extension address.

v2.3.20 - 2024/11/25
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News:
  - Added VTIMSP0/1/2 command.
  - Added VTIIAP0/1/2 command.
  - Added SWGP switch variable: KWF0/1.
  - KWP1281 protocols are supported, and the VTP291 command is used to select the protocol.

v2.3.18 - 2024/10/29
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News:
  - The PWM protocol supported 83.3Kbps.
  - The VPW protocol supported 41.6Kbps.
  - Added VTISOSI command.
  - Added VTSWGP P1S0/1 command.

Changes:
  - Non-CAN protocol supports OBD request timeouts of up to 5 seconds.
  - Changed the format of ATBD reply data display.
  
v2.3.16 - 2024/10/08
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Changes:
  - ISO-9141 supports 4128 bytes sent.
  - ISO-9141 A maximum of 11 bytes can be received in a single frame in ATNL mode.
  - USB devices support baud rate modification.

v2.3.12 - 2024/05/28
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News:
  - Added VT USERMSG, VT USERMSG para..., VT USERMSG_PRT hh command.
  - Added VTSWGP FCAN0/1 command.

v2.3.10 - 2024/03/30
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News:
  - Added VTBTMD RFS command.

v2.3.08 - 2024/01/26
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News:
  - Added ATLNKCHh, ATLNKLSh command.
  - VTDPNO1hh, VTDPNO2hh, VTSWSC h, VT SWRS h command. 
Changes:
  - Modify the command VTCFGCAN to add CH_CAN and LS_CAN parameter.
  - Modify the command VTP2 hh to add C1~C6, D1~D6 parameter.
  - When in the upgraded state, press the button to enable Bluetooth discovery.

v2.3.06 - 2023/09/21
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Bugs: 
  - The contents of the EEPROM after address 0x650 are not updated by the upgrade program.

v2.3.04 - 2023/08/28
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News:
  - Added VTBTMD COD, VTBTMD DM, VTBTMD DN, VTBTMD HCIBAUD, VTBTMD I,
    VTBTMD LEDN, VTBTMD PIN, VTBTMD PKPARAM, VTBTMD PM, VTBTMD WM command.
  - Added VT UCS_VTI, VT UCS_PROI command.

v2.3.02 - 2023/06/27
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News:
  - Added ATFT, ATFThh command.
  - Added ATFCSM8,9,A command.
  - Added HEX_FCTRA, HEX_CAN_FC command.
Changes: 
  - Changed welcome string to print "ELM327 v2.3".
Bugs: 
  - Left shift data length error when freeing heap memory.
  
v2.2.94 - 2023/05/16
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News:
  - Added pass filter, block filter increased to 207 groups.
  - Added VTTOST BTDC command.
  - Added VTBTI command.
Changes: 
  - Improved Bluetooth communication speed and stability.
  - Modified the method of generating random numbers for Bluetooth name suffixes.

v2.2.92 - 2023/02/01
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News:
  - Added OBD HEX format request.
  - Added VTVLCW command.
  - CAN bus baud rate support to 1M bps.
  - Add the function of restoring the serial baud rate to the default value.
  - Added SWGP switch variable: DRB, BOOST, HEX.

v2.2.90 - 2022/11/22
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News:
  - Initial release.