Get Started with the MPC5775B BMC + MC33771 BCC high-voltage BMS system

PLUG IT IN

2.1 Connect BATT-14CEMULATOR and RD33771CDSTEVB

Connect the BATT-14CEMULATOR battery cell emulator board and the RDCV33771C cell controller board using Cable_1.

2.2 Connect RD33771CDSTEVB and MPC5775B-EVB

Connect the RDCV33771C cell controller board with your MPC5775B-EVB battery management board using the Cable_2 to establish the TPL link for communication.
Either J1 or J2 can be connected to the RD33771CDSTEVB.
NOTE: connect positive (+) terminal of MPC5775B-EVB’s BMS interface connector (J118 – pin 3,4 ) to BMS cell controller module positive (+) terminal and negative terminal to negative terminal.

2.3 Power up BATT-14CEMULATOR and RD33771CDSTEVB

Plug the power supply to the BATT-14CEMULATOR battery cell emulator board.
Powering the BATT-14CEMULATOR also powers the RDCV33771C cell controller board.

2.4 Connect the USB serial cable to MPC5775B-EVB and PC

Connect the micro-USB cable to J116 micro-USB port for OpenSDA connection for programming and debug.
Connect the USB side to the computer.
Note: check the MPC5775B/E low-cost development boards – Quick Start Guide

2.5 Power the MPC5775B-EVB

Connect 12V power supply to power socket on your MPC5775B-EVB low-cost development board.
Make sure the status LEDs D14, D15, D16, and D32 for voltage levels 3.3 V, 5 V, 1.25 V and 12 V supply respectively are glowing green on the board.

2.6 Connect the CAN with PCAN tool

Connect CAN High and Low signals of J78 to PCAN tool CAN high and low.
MPC5775B-EVB:
J78 pin 2 is CAN0_High
J78 pin 3 is CAN0_Low

Connect the CAN_H and CAN_L signals of J78 of MPC5775B-EVB to PCAN USB CAN_H (pin 7) and CAN-L (pin 2) via two jumper cables.

BUILD AND LOAD

3.1 Import the demo project using your IDE

Import the MPC5775B_BMS_SDK_SW project into S32 Design Studio for Power Architecture^®IDE

3.2 Generate Processor Expert Codes and Compile the binary image

Build and run the program to generate the processor expert codes, compile and build the image.
Note: check the MPC5775B/E low-cost development boards – Quick Start Guide for debug/flash the image

3.3 Connect the PCAN tool USB to the PC

Connect the USB connector of PCAN tool to the computer USB port.

3.4 Run the GUI software

Open the “Command Prompt” from Windows and execute the Py Main.py (file included in the GUI folder) in the command shell.
Make sure you first install Python 3.7 64-bit version and PyQt5 and NumPy packages.
NOTE: Refer the readme file in the downloaded software GUI folder.

3.5 Setup the GUI link

1. Select CAN1
2. Set CAN baud rate to 500Kbps
3. Click Start, now the CAN link establish with the main controller board
4. Click OK
5. Initiate global reset to BMS system by clicking Global Reset
6. Observe the battery pack information: the GUI interface after communication has been established:

Adjust the battery levels via BATT-14CEMULATOR and observe the GUI for individual cell data in BCCDATA tab: