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foxBMS Change Log

Relase 1.1.0

  • uses now wafs feature of variant builds
  • baudrate of CAN0 and CAN1 can now be set independently
  • the setup of the tasks in engine and application layer is now consistent
  • updated license header
  • fixed a bug in contactor module to write unnecessary often into the database which caused a high cpuload
  • seperated database entries to prevent concurrent read/write requests to the database
  • added support of external SDRAM using keyword MEM_EXT_SDRAM
  • moved sdram from common repository to primary repository
  • fixed a bug that closed the interlock for a short period of time after restart even if no CAN message was received to switch to STANDBY state
  • renamed database functions to DB_WriteBlock() and DB_ReadBlock()
  • updated README.md

Release 1.0.2

  • fixed a bug in ISOGUARD module that caused a wrong insulation resistance to be transmitted via CAN if the measured insulation resistance was greater than 255kOhm
  • fixed a bug in EEPROM module that overwrote EEPROM data with default values if EEPROM header was corrupt

Release 1.0.1

  • fixed a bug in CANSIGNAL module when less than 12 battery cells per module were used. This lead to a transmission of invalid cell voltages in some cases.
  • fixed bug that balancing flag was not set correctly during balancing

Release 1.0.0

  • renamed repository from foxBMS-primary to mcu-primary.
  • drivers common to foxBMS-primary to and foxbms-secondary are now in a common separate repository named mcu-common.
  • changed software architecture. bmsctrl and sysctrl modules have renamed and redefined. Now SYS starts the other state machines. BMS implements the application and makes request to CONT and ILCK. Error counting with threshold is now made with DIAG.
  • added new canmatrix
    • removed use of multiplexer for cell voltages and cell temperatures
    • added valid flags to cell voltages and temperature
    • added default CAN messages for 8 modules with 12 temperature sensors per module
    • added messages for future implementation of SOE, SOP, SOV and SOH algorithms
    • added .dbc file for CAN messages and signals
  • balancing module has been redesigned and now uses a state machine.
  • current-counting can now be made via the current sensor directly.

Release 0.5.2

Release notes: We fixed a bug in the ltc driver, leading to a non-functional temperature sensing for foxBMS Slave Hardware version 1.xx. The slave version is configuration for the primary MCU in foxBMS-primary\src\module\config\ltc_cfg.h by the define SLAVE_BOARD_VERSION and for the secondary MCU in foxBMS-secondary\src\module\config\ltc_cfg.h by the define SLAVE_BOARD_VERSION.

  • Set SLAVE_BOARD_VERSION to "1" if you are using version 1.xx of the foxBMS Slave.
  • Set SLAVE_BOARD_VERSION to "2" if you are using version 2.xx of the foxBMS Slave. Version 2.xx is the default configuration.

Changelog :

  • foxBMS-primary
    • fixed LTC temperature sensing bug
  • foxBMS-secondary
    • fixed LTC temperature sensing bug

Release 0.5.1

  • foxBMS-setup
    • added parameter '-u', '--update' to bootstrap.py for updating the setup repository.
  • foxBMS-primary
    • updates for waf 1.9.13 support
    • updated module/EEPROM and migrated to module/nvmram
    • minor code adaptations and cleanup
  • foxBMS-secondary
    • support for waf 1.9.13
    • minor code adaptations and cleanup
  • foxbMS-tools
    • updated waf from version 1.8.12 to version 1.9.13

Release 0.5.0

A new project structure is now used by foxBMS. The documentation is no more contained in the embedded software sources and has its own repository. FreeRTOS and hal have their own repository, too. A central repository called foxBMS-setup is now used. It contains several scripts:

  • bootstrap.py gets all the repositories needed to work with foxBMS
  • build.py is used to compile binaries and to generate the documentation
  • clean.py is used to removed the generated binaries and documentation

Release notes:

  • New project structure

  • Added support for external (SPI) EEPROM on the BMS-Master

  • Redesign of can and cansignal module to simplify the usage

  • Added support for triggered and cyclic current measurement of Isabellenhütte current sensor (IVT)

  • Current sensor now functions by default in non-triggered modus (no reprogramming needed for the sensor)

  • Updated and restructured complete documentation

  • Restructured file and folder structure for the documentation

  • Added safety and risk analysis section

  • Cleaning up of non-used files in the documentation

  • Consistency check and correction of the naming and wording used

  • Addition of the source files (e.g., Microsoft Visio diagrams) used to generate the figures in the documentation

  • Reformatted the licenses text formatting (no changes in the licenses content)

  • Updated the battery junction box (BJB) section with up-to-date components and parameters

Release 0.4.4

The checksum tool is now automatically called when building binaries. Therefore the command python tools/waf-1.8.12 configure build chksum is NOT longer supported. The command to build binaries with checksum support is python tools/waf-1.8.12 configure build This is the build command used in foxBMS FrontDesk, that is, FrontDesk software is compatible with this change and now supports automatic checksum builds.

Release notes:

  • Improved checksum-feature
  • Updated copyright 2010 - 2017

Release 0.4.3

Starting from this version, a checksum mechanism was implemented in foxBMS. If the checksum is active and it is not computed correctly, it will prevent the flashed program from running. Details on deactivating the checksum can be found in the Software FAQ, in How to use and deactivate the checksum.

Release notes:

  • Important: Changed contactor configuration order in the software to match the labels on the front
  • Contactor 0: CONT_PLUS_MAIN
  • Contactor 1: CONT_PLUS_PRECHARGE
  • Contactor 2: CONT_MINUS_MAIN
  • Fixed an bug which could cause an unintended closing of the contactors after recovering from error mode
  • Increased stack size for the engine tasks to avoid stack overflow in some special conditions
  • Added a note in the documentation to indicate the necessity to send a periodic CAN message to the BMS
  • Fixed DLC of CAN message for the current sensor measurement
  • Added checksum verification for the flashed binaries
  • Updated linker script to allow integration of the checksum tool
  • Activated debug without JTAG interface via USB

Release 0.4.2

Release notes:

  • Removed schematic files from documentation, registration needed to obtain the files
  • Added entries to the software FAQ

Release 0.4.1

Release notes:

  • Corrected daisy chain connector pinout in quickstart guide
  • Corrected code for contactors, to allow using contactors without feedback
  • Corrected LTC code for reading balancing feedback
  • Quickstart restructured, with mention of the necessity to generate the HTML documentation

Release 0.4.0

Beta version of foxBS that was supplied to selected partners for evaluation.

Release notes: