Firmware Updates for STN1110

Here you will find short summaries of changes between the different firmware revisions. Developers should read the detailed changelog found inside the respective update archive. To install an update, download and extract the archive, then run StnFirmwareUpdater.exe.



Latest Version 5.6.21

Release Date: August 31, 2021
Level of Importance: Recommended

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This release fixed several bugs including:

  • Fixed OUT OF MEMORY issue related to async CAN processing
  • Fixed FATAL ERROR caused by reception of multi-frame message in monitor mode
  • Fixed error when using STIFI with ISO9141 protocols
  • Fixed 7Fxx78 message being counted when using STPTO 0
  • Fixed STSLU, STSLVL, and STSLX not working
  • Fixed lack of ability to transmit after CAN ERROR
  • Fixed FATAL ERROR when using multi-frame reception on CAN
  • Stopped premature timeout on CAN multi-frame reception
  • Fixed a "BUFFER FULL" error on a busy CAN bus

This release also added many new features and changes including:

  • Added support for assembly revision format
  • Added ATIB baud rate presets
  • Added command to change CAN consecutive and flow control frame reception timeouts
  • Added command to specify additional STmin delay
  • Added support for 4 byte header to ATSH
  • Made a small optimization to STPX
  • Removed CAN deaf time after sending a CAN message
  • CAN driver improvements
  • ELM 1.4b compliance
  • CAN driver improvements
  • "STOPPED" is now printed exiting all monitoring modes

See stn1110-changelog.txt inside the archive for detailed descriptions of the changes.



Version 5.0.0

Release Date: January 10, 2020
Level of Importance: Recommended

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This major release fixed several bugs including:

  • Fixed printing error when message reception was interrupted
  • Fixed CAN extended addressing bug when auto-formatting turned off
  • ATTA now works when used with ATCEA
  • STCFCPA now checks if a flow control address pair already exists
  • Fixed CAN multi-frame messaging with the STPX command
  • Monitoring would not show any data when using ISO protocols

The major release added many new features including:

  • Added periodic messaging commands
  • Added command for custom ISO-14230 fast init
  • Added Programmable Parameters 1A and 1B
  • J1939 now accepts targeted or broadcast acknowledgements

See stn1110-changelog.txt inside the archive for detailed descriptions of the changes.



Version 4.2.1

Release Date: January 30, 2017
Level of Importance: Recommended

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This major release fixed several bugs including:

  • CAN message loss or corruption due to CAN bus errors
  • ATPB could cause auto-filtering not to be set up correctly
  • Undefined behavior if reset during startup
  • ATMA command cleared CAN H/W filter on exit
  • ATMP commands cleared all current filters on OUT OF MEMORY error
  • ATBI/STPO did not activate pending USER1 protocol configuration changes
  • Automatic generation of 11-bit flow control ID pairs for segmented message transmission
  • UART transmission lock ups
  • ISO 9141 keep-alive messages

The major release added many new features including:

  • Turn LEDs off/on
  • Extra data parameter for the STPX command
  • Set CAN addressing modes
  • Set and read CAN timing registers
  • Support for 7F xx 78 response pending messages
  • Report factory calibration status
  • Fail-safe clock monitor
  • Complete ISO 15765 multi-frame message support
  • CAN Rx multi-frame message assembly
  • CAN Tx message segmentation
  • Arbitrary OBD message transmission
  • Set minimum time between the last OBD response and the next request
  • GPIO control for most digital I/O pins
  • Other stability and performance improvements

See stn1110-changelog.txt inside the archive for detailed descriptions of the changes.




Version 3.2.0

Release Date: September 19, 2012
Level of Importance: Recommended

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This major release fixes a number of serious bugs and introduces many new features.

See stn1110-changelog.txt inside the archive for more details.




Version 3.1.0

Release Date: May 16, 2012
Level of Importance: Recommended

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This major release fixes a number of serious bugs and introduces many new features.

See stn1110-changelog.txt inside the archive for more details.




Version 2.1.3

Release Date: January 11, 2011
Level of Importance: Recommended

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This release fixes a few minor bugs and introduces the following new features:

  • Voltage-based PowerSave triggers
  • Commands to change SLEEP input and PWR_CTRL output polarity
  • Higher precision voltage measurement

See stn1110-changelog.txt inside the archive for more details.




Previous Releases