4.1.1. Changelog for the TI TMS570-based BMS-Master

4.1.1.1. v1.2.3-0

  • Fix wiring of U6601 in schematic and layout.

  • Fix vendor number of Y6100 (SiT1618BA-32-33N-20.000000) in BOM.

  • Include a suffix in the version declaration.

4.1.1.2. v1.2.2

  • Update RTC INTA output circuitry to work independent of backup battery presence.

  • Add design variant “production” as primary configuration for board production.

  • Add SBC config to release file (check NOTICE).

4.1.1.3. v1.2.1

  • Update RTC INTA output circuitry for compatibility with higher supply voltages.

  • Rearrange wiring of SBC wake signals: only ignition signal on WAKE1, RTC and CAN1 on WAKE2.

4.1.1.4. v1.2.0

  • Optimize design by removing the second SBC (peripheral SPC), now featuring only a single SBC.

  • Fix wiring of Ethernet PHY in schematic and layout.

  • Control of CAN1 enable and !standby signals directly from MCU instead of port expander to increase compatibility with upcoming CAN bootloader.

  • Update schematic comment related to SBC debug pulse length.

4.1.1.5. v1.1.5

  • Fix Farnell order code for 100nF/50V/0402.

  • Update project BOM.

4.1.1.6. v1.1.4

  • Improve SBC wake-up pulse generation circuit by changing value of R7233 to 470kOhm.

4.1.1.7. v1.1.3

  • Fix swapped INTA/INTB pinout of U6400 (PCF2131TF).

  • Add OSHWA logo on PCB.

  • Modify power MOSFET and according control circuitry (Q4400-Q4402) for switching external insulation monitor (current rating of previous design was too weak).

4.1.1.8. v1.1.2

  • Fix assignment of memory devices (MRAM, FRAM, FLASH) to SPI3 chip select pins (net labels were swapped).

  • Split oscillator (Y6100) into two different part numbers and BOM items (one part for 20 MHz and 25 MHz).

  • Add voltage limiting Zener diodes to gates of Q6401 and Q6404.

  • Add 100 nF capacitor to “ON” pin of U7300 in order to improve transient immunity.

  • Fix faulty solder paste layer on component U7100.

  • Replace Ethernet socket J2001 due to availability issues (old part number: Wuerth 615008185121, new part number: Wuerth 615008137421).

4.1.1.9. v1.1.1

  • Add clamping diodes for contactor feedback resistor dividers in order to protect inputs of port expander.

  • Add clamping diodes to insulation monitor PWM and OK inputs.

  • Adjust contactor connectors pinout to match foxBMS 1 Master pinout.

  • Replace R8014 and R8017 10k resistors with 10R resistors due to amplifier gain error.

  • Add placement option to use ADUM6401 as a digital isolator for the CAN2 interface.

  • Fix a typo in EMIF connector silk screen.

  • Improve free space around debug connector (debug connector was moved towards upper edge of board).

  • Change global polygon connect style to relief connect in order to improve solderabilty of through-hole connectors.

  • Fix solder paste areas for Mictor debug connector.

  • Modify all mounting holes to fit Wuerth SMT spacers (outer diameter = 6mm).

  • Remove interlock high-side switch from default component variant due to availability issues.

  • Add hardware board version coding using IO1_0 to IO1_7 of port-expander1.

4.1.1.10. v1.1.0

  • Replace CAN transceiver with TCAN1043HDQ1 (SOIC-14 package) due to availability issues.

  • Add battery holder for CR1225 RTC battery (BR2470 battery is now optional).

  • Change value of all I2C pull-up resistors from 5.1 \({k\Omega}\) to 2.49 \({k\Omega}\).

  • Remove buck-boost converter IC from “default” component variant due to availability issues.

  • Remove Ethernet PHY IC from “default” component variant due to availability issues.

  • Finalize PCB layout.

  • Add mechanical dimensions to draftman document.

4.1.1.11. v1.0.2

  • Add digital isolator with integrated power for CAN2 interface.

  • Add connectors for interface and extension boards.

  • Add bypass for buck-boost converter.

  • Split board supply into clamp 30 and clamp 30C.

  • Add additional protection circuit for clamp 30C supply input.

  • Remove isolated USB interface.

  • Add test points for interlock circuit.

4.1.1.12. v1.0.1

  • Correct the supply of V:sub:dd of the smart power switch (from 12V to 5V).

4.1.1.13. v1.0.0

  • Initial version.