Wiki

Analog Devices Wiki

English
English
简体中文
简体中文
日本語
日本語
Руccкий
Руccкий
This version (05 Jan 2021 16:59) was approved by Ioana Chelaru.The Previously approved version (03 Jan 2021 21:55) is available.Diff

Table of Contents

CN-0352 Software User Guide

Overview

CN-0352 is a cost effective, multi-channel battery testing reference system designed for signle-cell Li-ion battery with open circuit voltage(OCV) between 3.5V to 4.4V.

It can handle charging-discharging cycle with CC(Constant Current), CV(Constant Voltage) charging mode with configurable termination control. During testing, the battery information including voltage, current and temperature are gathered, then sent and storted on PC through RS485 communication bus.

Each CN-0352 battery testing module could handle 8-channel Li-ion battery cell. With RS485 commumication bus, the testing channels could be extended upto more than hundred channels. The limitation is the communication bandwidth of RS485.

DISCLAIMER

THIS EVALUATION SYSTEM INTERFACES TO LITHIUM ION BATTERIES WHICH CAN BE DAMAGED, CATCH ON FIRE, OR EXPLODE IF OVERCHARGED, OVER-DISCHARGED, OR SUBJECTED TO SOURCE OR SINK CURRENTS THAT EXCEED THE BATTERY MANUFACTURER’S SPECIFICATIONS. TAKE ALL NECESSARY STEPS TO PROTECT USERS DURING OPERATION. ADI MAKES NO GUARANTEES TO THE SAFETT AND TAKES NO RESPONSIBILITY TO ANY POTENTIAL SAFETY HAZARD DURING DEMONSTRATION.

Required Equipment

  • EVAL-CN0352-EB1Z evaluation system.
  • 5 V, 5 A or higher dc power supply or wall wart(The power for battery charging of all channels is from this Power Supply).
  • PC or laptop with USB Port.
    • Windows XP Service Pack 2 (32-bit)
    • USB type A Port
    • Processor rated at 1GHz or faster
    • 512 MB RAM and 500 MB available hard disk space
  • USB to RS485 adapter supporting baud rate of 115200 bps.
  • CN0352 evaluation software (see link provided in CN0352 User Guide).
  • Li-ion battery cells (For safety consideration during demostration, using the Li-ion battery with integrated protection circuit is highly recommended)
  • Battery holder board in order to connect battery to EVAL-CN0352-EB1Z evaluation system.

Evaluation System Setup

EVAL-CN0352-EB1Z Module Setup

The EVAl-CN0352-EB1Z, battery test system in Figure below is composed of multiple I/O boards (EVAL-CN0352-EB1Z_IO) for handling the charging and discharging process, an MCU board (EVAL-CN0352-EB1Z_MCU) for battery data acquisition, testing, monitoring,and temperature management, and a backplane base board (EVAL-CN0352-EB1Z_BAS) that provides the signal interconnections between the MCU board and the multiple I/O boards.

The picture below shows all 3 type of boards and give each connector a serial number for better understanding. See the tables below with detais of the connectors and jumpers on each board.

See the red dots on the picture. Each dot indicate the 1st pin location on the connector. the Pin1-to-Pin1 hookup must always be done during EVAL-CN0352-EB1Z module setup process.

External Connectors

External Connectors are used to connect with external power supply, FAN, batterys and temperature sensors. It is important to connect them correctly by know the pin definition on each of them. See the table below for this information.

Connector NO. Pin No. Pin Name Function Note
1. Power Input Connector 1 +5V 5V DC Power Input Two Pins for High Current
2 +5V 5V DC Power Input
3 GND Ground Two Pins for High Current
4 GND Ground
2. RS485 Interface Connector 1 D- Data +
2 D+ Data -
3 GND Ground
3. Battery Connector 1 B- Power Path to Battery Cathode 4 wire Kelvin Connection
2 S- Sensing path to Battery Cathode
3 S+ Sensing path to Battery Anode
4 B+ Power Path to Battery Anode
4. Temperature Sensor Connector 1 T1 Temperature Sensor Pin1 Thermisor10k by 2 wire Connection
2 T2 Temperature Sensor Pin2
5. Reset Push Button x x x Push to reset whole system
6. PWM FAN Connector 1 1 FAN GND FAN GND
2 FAN Power FAN Power,Connect to FAN
3 Speed FB FAN Speed feedback input
4 PWM Control FAN Speed PWM Control Output
7. PWM FAN Connector 2 1 FAN GND FAN GND
2 FAN Power FAN Power,Connect to FAN
3 Speed FB FAN Speed feedback input
4 PWM Control FAN Speed PWM Control Output
8. FAN Power Connector 1 FAN Power FAN Power,Connect to 12V DC Supply
2 FAN GND FAN Power,Connect to GND of 12V Supply

Internal Connectors

It is necessary to have one BAS board, one MCU board and at least one I/O Board to setup the demo system. The Internal Connectors are used for EVAL-CN0352-EB1Z module setup. MCU and I/O board need to be plugged into the connectors on BAS board correctly.

Connector NO. Function Note
9. Hookup with MCU Board Marked with JP2 on BAS board. See schematics for pin definition.
10. Hookup with I\O Board Marked with P1~P8. See schematics for pin definition.
11. Hookup with I\O Board Marked with S1~S8. See schematics for pin definition.
12. Hookup with BAS Board Marked with J4 on MCU board. See schematics for pin definition.
13. Hookup with BAS Board Marked with CNP. See schematics for pin definition.
14. Hookup with BAS Board Marked with CNS. See schematics for pin definition.

Jumpers

There are some jumpers on each board with different function listed below. See the table as a summary for the function and suggested configurations.

Jumper NO. Configuration Function Note
15. RS485 Termination Jumper On 120 Ω Termination Turned on.
Off 120 Ω Termination Turned off. Default Configuration
16. LK1 to LK3 on MCU Board On Provide Power for MCU Always put on for correct operation
17. J3 on MCU Board x JTAG interface for MCU Debug
18. JP2,JP3 on I\O Board Both On Connect to Battery by 4 wire Kelvin Connection Recommended
Both Off Connect to Battery by 2 wire Connection Have lead error

Boards Hooking Up

The picture below shows the way to hook up the BAS, I\Os and MCU boards together. It is necessary to have at least one I/O board to make system working correctly.

EVAL-CN0352-EB1Z Demo System Setup

  1. Connect 5V DC Power Supply to PWR connector on BAS Board;
  2. Connect USB to RS485 adapter to COM connector on BAS Board;[1]
  3. Connect the FAN to FAN1, FAN2 and FPWR connectors on BAS Board;[2]
  4. Connect the Battery to CN1 connector on I\O board;[3-6]
  5. Connect the Thermistor 10k sensor to CN2 on I\O board.[7]

See the picture below showing the whole CN0352 demo system.

  • [1] Verify the pin definition of USB to RS485 Apapter used for communication and do a connect connection.
  • [2] Verify the pin definition of the FAN used for cooling and do a connect connection. Need to find a way to fix the FAN close to the Headsink on I\O board for better cooling performance. The way shown in this user guide is just for demostration and customer need to guarantee the final cooling performance in your own system.
  • [3] It is very dangerous to if connecting the battery with I/O board reversely.
  • [4] Using a battery with protection circuit integrated is highly recommended for demonstration.
  • [5] 4-wire Kelvin connection is recommended.
  • [6] There is no battery holding board in CN0352 package. Customer need to prepare the battery holding board for a good connection
  • [7] The default RT table if for ERTJZEG103JA, the Thermistor 10k NTC from Panisonic. If using different sensor, the RT table need to be modified to fit the new sensor.

CN0352 Evaluation Software

Software Instllation

There is a CN0352 Design Support CD in the CN0352 CftL package. Insert the CD in to your CD ROM driver and located the installation file under the location CD ROM..\CN0352 Installer\setup.exe. Double Click the setup.exe and follow the installation wizard to install the evaluation software and drivers on your PC.

If you see the picture below, then click finish to complete the software installation.

Italic Text

Software Function Introduction

Double click the CN0352.exe, then the interface of CN0352 evaluation software shows up.

The evaluation board would send related command frame down to one or more EVAL-CN0352-EB1Z demos one the same RS485 bus regards to the button been clicked by customer. Then the EVAL-CN0352-EB1Z addressed will do related operations and may or may not send back feedback data.

System Operation Tab

  • Battery Scan: Do the Scan after clicked to get the ID informaiton of all the available demos that share the RS485 bus and channel ID of I\O boards on each of the demos. This is the first operation to do.
  • Update Config: Click this button to make current configuration shown on the software interface to become effective to all the demos on the RS485 bus.
  • Start Test: Click to start the test process. The testing process is a fix times of charging-discharging cycle with configured status and termination conditions. The information during testing would be gathered and stored on PC memory.
  • Stop Test: Click to stop the test.
  • Save Data: Click to save the data that already gathered on PC. The data would be processed to wirte into a xls file with specific format that could be re-imported into the software for analysis.
  • Import Data: Click to import the data file that had been saved by the software before.
  • Exit: Click to exit the software.

Channel Switching Tab

There are Battery Status and Test Procedure blocks are both refreshing to show the latest battery status that the software just received from EVAL-CN0352-EB1Z. The switching Channel Switching tab is used to switch to any of the available battery channel that customer want to look at.

  • : Click to switch to the 1st Battery available.
  • : Click to switch to the previous Battery available.
  • : Switch to the expected battery channel by input the battery index.
  • : Click to switch to the next Battery available.
  • : Click to switch to the last Battery available.

Main Tab

Configuration Tab

For easy to do the operation and see the result, the Configuration block and Battery Status,Test Procedule on the same tab.

  • Configuration
    • Communication
      • COM: Select the right COM Port on your PC that stand for the USB to RS485 adapter.
      • Baudrate: Select the COM Port Baudrate. 115200 is recommended.
    • Testing Configuration
      • Charging Configuration
        • Input Current Limitation: The maximum current that going into the VIN pin of ADP5065. See ADP5065 Datasheet for more details.
        • Trickle Vlotage Threshold: The charging voltage thershold of trickle charge mode. Trickle Charging is a charging mode of ADP5065 with small charging current to reset the battery pack protection circuit and lift the voltage to safe level for fast charging. See ADP5065 Datasheet for more details.
        • Trickle Current Threshold: The charging current of trickle charge mode. See ADP5065 Datasheet for more details.
        • Fast Charge Current: The configurable charing current during constant current charging stage of ADP5065. See ADP5065 Datasheet for more details.
        • Charge Termination Voltage: The termination voltage of constant current fast charging mode of ADP5065. See ADP5065 Datasheet for more details.
        • Charge Termination Current: The termination charging current of constant voltage charging mode of ADP5065. See ADP5065 Datasheet for more details.
      • Discharging Configuration: The maximum current that going into the VIN pin of ADP5065. See ADP5065 Datasheet for more details.
        • Step: Discharging stage with configurable discharging current and termination voltage.
          • Current: Constant current of discharging stage.
          • Voltage: Termination voltage of discharging stage.
  • Battery Status
    • Battery Info: Battery Informaiotn
      • Battery NO.: Battery Serial Number. NO.1 is the 1st Channel on the EVAL-CN0352-EB1Z with minimum Module ID. The value is from 0 to 2039.
      • Module ID: The Module ID that have the current active battery channel. The value is from 1 to 255.
      • Channel: The channel number of current active battery channel. The value is from 0 to 7.
  • Test Procedule: There are 7 status during the testing. The current status will be highlighted.
    • IDLE: Idle status.
    • Trickle: Trickle charging status.
    • Fast CC: Constant Current Fast Charging Status.
    • Fast CV: Constant Voltage Fast Charging Status.
    • Discharge Step: Three stages for discharging process.
    • Cycles: Shows the number of how many charging-to-discharging cycles that have been completed.
    • Test Complete: If the number of Cycles that has completed is equal to the number set in Test Cycles in the configuration block, then the whole test is completed.
Battery Plots

Battery Plots showns all the battery information since the testing started. All the information are shown on the plot.

  • Voltage & Current Plot: This plot shows the Voltage and Current information of active battery channel.
  • Capacity & Temperature Plot: This plot shows the Capacity and Temperature Informaiotn of active battery channel.
    • Capacity: Calculated by software on PC by the equation: Capacity = Σ(T*I*Δt). T: temperature, I: Charging or discharging current, t: sample period for this active channel.
Battery Summary

The Battery Summary tab listed all latest informations of each battery on one row. It is very convenient to see the any battery interested without switching the channel.

Module ID Programmer

Before doing the test, each EVAL-CN0352-EB1Z sharing the same RS485 bus need to have a unique ID. This ID is a 8-bit ID. The Default ID for the EVAL-CN0352-EB1Z is 0xFF. If there are multiple modules sharing the same RS485, than each Module need to have a different ID. This Module ID Programmer is the tools for assigning the ID.

  • Module ID: Input a ID number that is different with all the ID that has been assigned to other modules. The Value of Module ID will increast 1 automatically after you click the Program button and program process is succeeded.
  • Program: Click this button will program the module connected to RS485 bus. Only one module could be connected to RS485 bus during ID programming process.
  • LED: This Square LED will indicate the status of ID programming process.
    • Green Color: Program Successfully
    • Red Color: Program Failed.

Simple Testing Example

EVAL-CN0352-EB1Z Module Power On Process

  1. EVAL-CN0352-EB1Z Module Setup. See Evaluation System Setup section for more details.
  2. EVAL-CN0352-EB1Z Battery Testing Demo System Setup. See Evaluation System Setup section for more details.
  3. Before Powering on the EVAL-CN0352-EB1Z Modules, break all the connection between batteries and I\O boards. It is not suggested to connect the battery to un-powered EVAL-CN0352-EB1Z module.
  4. Plug the USB to RS485 adapter into your PC and check to make sure that the adapter is working well and record the COM port number.
  5. Power On All the available EVAL-CN0352-EB1Z modules
  6. Connect batteries that you want to test to I/O boards.

Software Evaluation

Communication Setup

  1. Open the CN0352 Evaluation software by click the CN0352.exe. This program can be found on desktop or Start Menu\All Programs\Analog Devices\CN0352.exe
  2. Click the COM drop down menu to selec the COM port that stand for your USB to RS485 adapter.
  3. Click the Baudrate drop down menu to select 11520.

IO Programm

  1. Click the Module ID Programmer page.
  2. If there are multiple modules, Assign a different ID to each Module.If there is only one EVAL-CN0352-EB1Z module, then you could program the module ID to 0x01 to get a quicker scaning process
  3. Input 0x01 into Module ID test box.
  4. Click Program button and see the LED turned on with green color.

Battery Testing

  1. Click Configuration Tab
  2. Click Battery Scan button to scan all the available battery channels on RS485 bus.
  3. Click Start Test button to start batter testing with default configuration value. See the information of active battery in Battery Status & Test Procedure blocks.
  4. Click Stop Test button to stop current testing.
  5. Click Any of the test boxes or drop down menuses to change configurations during charging or discharging process.
  6. Click Update Config button to download the updated configurations to the module.
  7. do Step 3 to start testing
  8. Click Channel Switching buttons to switch to other battery.
  • Click Battery Scan button, switch to Battery Summary tab. It shold listed all the battery channels available on RS485 bus. if not, click the Stop button and click Run button.
  • This CN0352 evaluation software on PC is designed with simple testing and just for demonstration. The operation failure may happen during testing.
  • The EVAL-CN0352-EB1Z firmware in C code is designed with simple test and just for demonstration. The operation failure may happen during testing.
DISCLAIMER

THIS EVALUATION SYSTEM INTERFACES TO LITHIUM ION BATTERIES WHICH CAN BE DAMAGED, CATCH ON FIRE, OR EXPLODE IF OVERCHARGED, OVER-DISCHARGED, OR SUBJECTED TO SOURCE OR SINK CURRENTS THAT EXCEED THE BATTERY MANUFACTURER’S SPECIFICATIONS. TAKE ALL NECESSARY STEPS TO PROTECT USERS DURING OPERATION. ADI MAKES NO GUARANTEES TO THE SAFETT AND TAKES NO RESPONSIBILITY TO ANY POTENTIAL SAFETY HAZARD DURING DEMONSTRATION.

resources/eval/user-guides/circuits-from-the-lab/cn0352.txt · Last modified: 05 Jan 2021 16:59 by Ioana Chelaru

Page Tools