Getting Started with the MPC5775B BMS and VCU Reference Design

2.1 Download the RDVCU5775EVM software development kit (SDK)

S32 Design Studio based demo project for RDVCU5775EVM using SDK 3.0.0 with FreeRTOS.

2.2 Download the RDVCU5775EVM graphic user interface (GUI)

GUI software to monitor battery status via CAN interface.

2.3 Get your integrated development environment (IDE)

RDVCU5775EVM performs better when using S32 Design Studio for Power Architecture 2017.R1

Note:Check the S32 Design Studio page for the latest version.

2.4 Get a GIU run-time environment

Python 3.7 64-bit with PyQt5 and Numpy GUI run-time environment.

2.5 Get a UART driver

FT232RQ driver for UART FTDI Driver for UART.

3.1 Set up UART driver for RDVCU5775EVM

Connect the mini USB cable to J2 mini USB port on RDVCU5775EVM.

Check if the driver is available under Ports (COM and LPT) in Device Manager.

3.2 Set up the GUI environment

Open Windows Command Prompt and execute the python - version to check the python version.

Execute the pip install PyQt5 and pip install Numpy to install the necessary packages for GUI.

Note:Assume Python is added to the Windows Path.

Battery Management System (BMS) demo

Required Hardware

Note:Numbers correspond to the steps to follow for setup.

Connect BATT-14CEMULATOR and RD33771CDSTEVB

Connect the battery cell emulator board (BATT-14CEMULATOR) and the battery cell controller board (RD33771CDSTEVB) using Cable_1.

Connect RD33771CDSTEVB and RDVCU5775EVM for TPL link

Connect the battery management controller board (RDVCU5775EVM) with battery cell controller board (RD33771CDSTEVB) using Cable_2. This will establish the TPL link for communication.

Note:Make sure that “+” of RDVCU5775EVM is connected to “+” of RD33771CDSTEVB.

Connect the CAN with PCAN tool

Connect the CAN_H and CAN_L signals of RDVCU5775EVM to PCAN USB CAN_H (pin 7) and CAN-L (pin 2) via two jumper cables.

Connect the USB serial cable

Connect the RDVCU5775EVM board to PC via the USB serial cable.

Setup Tera Term Console

Open Tera Term on Windows® PC.

Select the serial port to which the micro USB of the development board is connected and click OK.

Go to Setup → Serial Port and select 115200 as the baud rate.

Power up RDVCU5775EVM

Connect 12 V power supply to RDVCU5775EVM. 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 yellow on the board.

Power up BATT-14CEMULATOR and RD33771CDSTEVB

Connect the power supply to the BATT-14CEMULATOR. RD33771CDSTEVB is powered at the same time.

Connect the P&E Multilink between PC and RDVCU5775EVM board

Preparation before importing the SDK project

Unzip the file Bootloader_Settings.zip that is located in [PROJECT_DIR] \PDC_5775B_SDK_Z7_0\Project_Settings to replace the folders.

Import the SDK project to S32DS

Note:Make sure to follow up the below IDE and SDK.

S32 Design Studio for Power Architecture@ 2017.R1.

S32 Design Studio for Power Architecture 2017.R1 Update 11 SDK PA RTM 3.0.0.

Generate processor expert codes

Note:After generating code, please modify the macro PIT_CLOCK_NAMES from “PITRTI0_CLK” to “PER_CLK” at MPC5775B_features.h is located in [PROJECT_DIR] \SDK\platform\devices\MPC5775B\include\

Debug your code

Select “Debug” and click the hammer icon to build the project.

Download to the MCU

Download the elf file to MCU.

Check the running status of the application

LEDs D45 and D46 on RDVCU5775EVM board should blink at different frequencies.

The board self-test message should be shown on the terminal.

Run the GUI software

Open the windows “Command Prompt” and execute the python Main.py in the command shell. Make sure you first install the Python 3.7 64-bit version and necessary packages PyQt5 and NumPy prior to the above step. Refer to the readme file in the downloaded software GUI folder.

Setup the GUI connection via PCAN USB

Select CAN Port and CAN baud rate to 500Kbps. Click “Start” to establish the connection with RDVCU5775EVM. Click “BMS Reset” to reset the BMS task in application. Input the related NTC parameters and click “OK”.

System running information including CAN connection status, MCU software version, battery pack information after communication has been established:

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

Board Documents

• RDVCU5775EVM Reference Design – User Guide
• RDVCU5775EVM Reference Design – SCH
• RDVCU5775EVM Reference Design – BoM
• RDVCU5775EVM Reference Design – Layout

Chip Documents

• MPC577E/MPC5775B – Data Sheet
• MPC5775E/MPC5775B – Reference Manual
• FS6500 System Basis Chip (Power Supply and Drivers) – Data Sheet
• TJA1145 High-speed CAN transceiver for Partial Networking – Data Sheet
• MC33771C Battery Cell Controller Full – Data Sheet

Software

• S32 Design Studio for Power Architecture
• S32 Software Development Kit for Power Architecture^®
• RDVCU5775EVM Reference Design for S32 Design Studio IDE – Demo Software
• RDVCU5775EVM Reference Design – GUI Software
• RDVCU5775EVM Reference Design – MCAL Demo Software

Forums

Connect with other engineers and get expert advice on designing with the RDVCU5775EVM on one of our community sites.

• MPC5xxx Community
• S32 Design Studio Community
• S32 SDK Community