Texas Instruments TMS320C2000 User manual

TMS320C2000 AC/DC Developer’s Kit Overview
Quick Start Guide
Literature Number: SPRUFR8September 2008

Trademarks
Quick Start GuideSPRUFR8 – September 2008
TMS320C2000™ AC/DC Developer’s Kit Overview
This document describes the ac/dc developer’s kit evaluation board designed to work with TexasInstruments C2000™ DSP platform devices. This kit is a part of the digital power tools package from TI,designed to give customers an opportunity to quickly evaluate C2000 products for power conversionapplications at a safe input voltage and power level.
WARNINGThis equipment may generate voltages and currents that can beinjurious to humans, and must be used with extreme caution. Theuser must employ appropriate safeguards to avoid serious injury.
TMS320C2000, C2000, Code Composer Studio are trademarks of Texas Instruments.
Blackhawk is a trademark of EWA Technologies, Inc.
All other trademarks are the property of their respective owners.
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1 Features
2 Hardware Overview
Phase
Shifted
Full Bridge
Isolation
3-V - 12-V
DC O/P
C2000 JTAG
11-33 Vrms
AC I/P
2-Phase
Interleaved
PFC Section
48-V DC
PFC O/P 12-V, 5-V, 3-V
Bias Supply RS232
48-V DC
FB I/P
www.ti.com Features
The ac/dc developer’s kit contains a motherboard which accepts any of the plug-in controlCARDs. Theboard is divided into a power factor correction (PFC) section and an isolated dc-dc conversion full bridge(FB) section. Features of the ac/dc developer’s kit include:•Voltage and current measurements via ADC•Over-current and over-voltage protection on the PFC side and over-current protection on the FB sidevia trip zone ( TZ) pins•Closed loop digital control with feedback using 28x on-chip ePWM and ADC•UART communications header available for host control•A learning platform allowing the user to easily probe the most significant wave forms within a boardthat is laid out conservatively and contains many test points.•An analog and a digital header to provide easy interconnection with the EZDSP board if desired.•Host GUI, a friendly way to control / demo the application, based on open source C# freeware•Special hardware circuit allows experimentation with peak-current-mode control operation, if desired•Hardware Developer’s Package is available and includes schematics, bill of materials, Gerberfiles, …etc
The PFC section accepts an ac input of 11 – 33 Vrms, while the FB section accepts a 48-V dc input.Figure 1 shows the acdc board identifying the key components.
Figure 1. Components
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2.1 Hardware Set Up
Hardware Overview www.ti.com
Auxiliary Supply A 12-V auxiliary supply connection at J9 to power the control and drive circuit.Optional 5-V supply connection at J10 to only power the control circuit3.3-V ISO Supply A 3.3-V isolated supply is generated on-board for serial communication. See theHardware Setup section of this document.PFC section Two-phase interleaved boost power stage for power factor correction11 – 33 Vrms ac ac input for the PFC section at connector J13-J14I/P
FB section Phase shifted full bridge power stage for dc-dc conversion48-V dc I/P dc input for the FB section at connector J26-J27Boot Jumpers Controls how the F280x boots. (J31)If no jumpers are placed, the target boots from flash.If a jumper is placed at 84, the target boots from the SCI.
To be able to run the various software builds for the projects included in this package a 12-V dc regulatedbench power supply, an isolated 11-33 Vrms ac power supply, a 48-V dc power supply, a bank ofappropriately rated resistive loads and an emulator are required apart from the hardware included in thispackage (suggested emulators are listed near the end of this document).
CAUTION
Do not connect 110-V or 220-V main supply to the ac input on the ACDCboard. It is designed to handle a low voltage ac input, and the connectionconfiguration must ensure this. If voltages exceeding 33 V ac are applied to thePFC section or voltages exceeding 50 V dc are applied to the FB section, theboard can be damaged.
The application-specific motherboard provided in this kit can be used in one of two ways:1. Test Drive – Using the provided GUI application, you do not require Code Composer Studio™ oremulation tools. This provides a great way to run or demo the application code quickly and see whatfunctionality the hardware offers. Note: exactly the same functionality can be achieved by using theCode Composer Studio Watch Window and graphing features during emulation in the second mode.2. Code Composer Studio Software Development Platform – With the project code provided, theapplication can be modified, compiled, loaded and run in a development environment. Code ComposerStudio and emulation hardware tools are required for this.
Note: By default, the V
DD
is connected to VDD_ISO (isolated supply for serial communications) onthe controlCARD through resistor R13. Similarly GND and GND_ISO are connected togetherusing resistor R16. Therefore if a non-isolated input ac supply is used, replace R16 on thecontrolCARD with around 2200pF capacitor and also remove resistor R13. If emulation isdesired in this case, you must use an isolated emulator.
Follow these steps to set up the hardware for either the GUI or software development platform:Step 1. Unpack the DIMM style controlCARD.Step 2. Spread open the winged retaining clips on controlCARD U23 connector.Step 3. Sit the DIMM card loosely in the connector slot. Make sure to align the two keyed notchesand position the card bottom corners inside the retaining clips (see Figure 2 )Step 4. Push vertically down using even pressure from both ends of the card until the clips snap andlock. (To remove or eject the card, spread open the retaining clips with thumbs.)
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2.2 Test Drive With GUI – (skip this if you need only emulation support)
Pin 4
of J18
www.ti.com Hardware Overview
Figure 2. Connecting the DIMM Card
Step 1. Plug in the serial cable provided to connector J18 making sure the red wire aligns with the pin4 of J18 (marked in Figure 3 ) on EVM (or use a DB9 serial cable at J21).Step 2. Insert a jumper in position 84 on Boot pins.Step 3. Insert a jumper between pins 1 and 2 of J19.Step 4. Similarly insert a jumper between pins 3 and 4 of J19.Step 5. Plug the DB9 connector into your PC using either a serial port or a serial-to-USB converterdongle.Step 6. Connect the PFC output at J24-J25 to the FB input at J26-J27 using appropriate wires. Makesure to match the PFC output and FB input polarity.Step 7. Apply a resistive load to the phase shifted full bridge system at connector J28-J29. Choosethe value of the resistors and their power rating to present a load of about 10 W-30 W at 6 V.Step 8. See Software Setup GUI-TestDrive
Figure 3. Pin 4 Location
Note: If you are not using an isolated ac supply, you must replace R16 on the controlCARD witharound 2200 pF capacitor. You also need to remove resistor R13 on the controlCARD. Ifemulation is desired in this case, you must use an isolated emulator.
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2.3 Code Composer Studio Software Development Platform emulation - additional steps
3 Software Set Up
Software Set Up www.ti.com
1. Connect the JTAG emulator cable to connector J20.2. See Software Set-up Code Composer Studio - Development.
For full details (schematics, pin-out table, etc) of the hardware, see the Hardware Developer’s Package,ACDC-HWdevPkg. See Section 3 for download location.
The ac/dc kit application software example, GUI, step-by-step lab style documentation, and other usefulsoft collateral is available on the TI website. If you already have your own software project and do notrequire this collateral, skip this section. As explained in the hardware set up section, the target motherboard can be run either with the GUI or Code Composer Studio. The GUI executable file is found as partof the main software download. Follow the steps below for either case.
To run any of the application-specific software in Code Composer Studio, first install the baseline codethat contains the header files, libraries, etc. If you already have the base-line software installed, skip thebaseline install steps and go to the acdc Kit section.
To download the free TI soft collateral follow these steps:Step 1. Baseline soft collateral and hardware documents (skip this if you already have this softwareinstalled)
a. On an Internet browser type: http://www.ti.com/f28xkitsb. At the C2000 collateral page, choose the ACDC Developer’s Kit download link.c. When prompted, fill in the TI customer registration details and click ok.d. Save the .zip file to the directory of your choicee. Unzip the file and run the install program baseline software set up.f. The installer creates the following default directories:
C:\TI_F28xxx_SysSW
~Docs
~GeneralPurposeGUI
~HexConverterUtility
~SupportFiles
FlashingLeds
C:\TI_F28xxx_SysHW
CC280xxHWdevPkg
CC2833xHWdevPkg
DockingStnHWdevPkg
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4 Running the Application
5 Emulators
www.ti.com Running the Application
2. ACDC Kit soft collateral and hardware documentsa. On an Internet browser type: http://www.ti.com/f28xkitsb. Choose the ACDC Kit linkc. When prompted, fill in the TI customer registration details and click okd. Save the .zip file to the directory of your choicee. Unzip the file and run the install program acdc software set up1. The installer creates the following default directories:
C:\TI_F28xxx_SysSW
~SupportFiles
lib
PowerLibPFC2PHIL
~Docs
~GUIFBPS
~Docs
~GUIACDC
~Docs
~GUIC:\TI_F28xxx_SysHW
ACDC-HWdevPkg
To run the application specific hardware, choose either “TestDrive-GUI” or “CCS-Development” optionsbelow and follow the appropriate steps.Step 1. TestDrive-GUI
a. Open the GUI Quick Start Guide, QSG-ACDC-GUI.pdf, found in:C:\TI_F28xxx_SysSW\ACDC\~Docs\
b. Browse to the directory: C:\TI_F28xxx_SysSW\ACDC\~GUI
c. Open ACDC-GUI.exe
d. Follow the step-by-step instructions found in the Quick Start GuideStep 2. Code Composer Studio - Developmenta. If you have emulation tools and Code Composer Studio already installed and active, loadthe project file PFC2PHIL.pjt in: C:\TI_F28xxx_SysSW\PFC2PHIL\ or FBPS.pjt in:C:\TI_F28xxx_SysSW\FBPS\ or ACDC.pjt in: C:\TI_F28xxx_SysSW\ACDC\b. See the corresponding (PFC2PHIL.pdf/FBPS.pdf/ACDC.pdf) user guide for a step-by-stepwalk through of how to compile and run the various labs. This document is in thecorresponding documents folder for the project(\~Docs\).
The following companies provide low cost, full-featured emulators designed specifically for C2000controllers:
•Blackhawk™
– USB2000 Controller (orderable through TI as part number TMDSEMU2000U)
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6 References
References www.ti.com
–http://www.ti.com
– $299•Spectrum Digital– XDS510LC JTAG Emulator (part number 701902)–ttp://www.spectrumdigital.com
– $249
For more information, see the following guides:•PFC2PHIL – provides detailed information on the PFC2PHIL project within an easy to use lab-styleformat.
C:\TI_28xxx_SysSW\ PFC2PHIL\~Docs\ PFC2PHIL.pdf•FBPS – provides detailed information on the FBPS (phase shifted full bridge) project within an easy touse lab-style format.C:\TI_28xxx_SysSW\ FBPS\~Docs\ FBPS.pdf•ACDC – provides detailed information on the ACDC (PFC + FB) projectC:\TI_28xxx_SysSW\ ACDC \~Docs\ ACDC.pdf•QSG-ACDC-GUI – gives an overview on how to quickly demo the ACDC project using an intuitive GUIinterface.
C:\TI_28xxx_SysSW\ACDC\~Docs\QSG-ACDC-GUI.pdf
•ACDC-HWdevPkg – a folder containing various files related to the hardware on the ACDC Kit board(schematics, bill of materials, Gerber files, PCB layout, etc).C:\TI_28xxx_SysHW\ACDC-HWdevPkg\
•System Framework Overview Guide – presents more information on the system framework found inF28xxx EVM projectsC:\TI_28xxx_SysSW\~Docs\SystemFrameworkOverview.pdf
•F28xxx User’s Guideshttp://www.ti.com/f28xuserguides
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