Document History

Date
Version
Author
Description of Revisions
03-01-2014
0.1
E Srikanth
Initial Draft





1. Introduction

The ZC702 board uses power regulators and a PMBus compliant system controller from Texas Instruments to supply core and auxiliary voltages to the Zynq 7000 APSoC.

There are 5 switching regulators (PTD08D210W) and 1 linear regulator which generate different voltages required for the Zynq-7000 APSoC as well as the on-board components present on the ZC702 board. The voltage and currents supplied by these voltage regulators are continuously measured and monitored by three Texas Instruments digital power controllers (UCD9248) available on the ZC702 board.

The TI Power controllers are complaint to PM Bus specification PMBus Specification 1.1 and voltage and current measurements of the TI Power controllers can be accessed via the PMBus connector, J59 using the TI Fusion USB cable and TI Fusion Digital Power Designer GUI.

In this tech tip the Zynq Base TRD has been used to demonstrate the monitor the power consumption of the Zynq7000 AP SoC and ZC702 board. The TI Fusion Digital Power Designer GUI will be used to monitor the power consumption while running the ZYNQ TRD video applications on the ZC702 board.

More details of the Zynq Base TRD are explained briefly in the About Zynq Base TRD section of this document.
Please note that the Appendix A “List of Components using the ZC702 power supplies” section of this document covers the list of components powered by different switching regulators apart from the Zynq7000 AP SoC.

The SD Card images of the TRD and the TI FUSION Project for running this techtip can be downloaded from the following link: Zynq7000AP_SoC_ZC702_Fusion_project.zip


2. Introduction to TI Fusion Digital Power Designer

The TI Fusion Digital Power Designer is the Graphical User Interface (GUI) used to configure and monitor select Texas Instruments digital power controllers and sequencer/health monitors. The application uses the PMBus protocol to communicate with the device over serial bus. Some of the tasks you can perform with the Fusion Digital Power Designer GUI include:
  • Turn on or off the power supply output, either through the hardware control line or the PMBus OPERATION command.
  • Monitor real-time data. Items such as input voltage, output voltage, output current, temperature, and warnings/faults are continuously monitored and displayed by the GUI.
  • Configure the control law accelerator (CLA) coefficients through an interactive design tool.
  • Configure common operating characteristics such as Vout, warning and fault thresholds, and switching frequency.

The TI Fusion Digital Power Designer can access the PMBus by the means of using the TI USB adapter.

2.1 Hardware Requirements:
Texas Instruments USB Interface Adapter EVM– TI Part Number: USB-TO-GPIO http://www.ti.com/tool/usb-to-gpio

An Answer record for procuring the Texas Instruments USB Interface Adapter is available on Xilinx Support at the following link.
http://www.xilinx.com/support/answers/54022.html

2.2 Software requirements:

Texas Instruments TI Fusion Power Designer Software: Download it from here: http://www.ti.com/tool/fusion_digital_power_designer

3. Introduction to ZC702 Power Supply Configuration

3.1 Zynq Power Supplies:

The Zynq-7000 AP SoC devices have several power domains. Figure 1 shows an overview of the power domains available on the device.
Zynq-7000 Power Domains.PNG
Figure 1 Zynq-7000 Power Domains


The description of the each power supply of the Zynq 7000 is as described below.

Table 1 Zynq-7000 Power Domain Description
Name
Type
Description
VCCPINT
PS Internal Logic Supply
VCCPINT is a 1.0V nominal supply that powers all of the PS internal logic circuits.
VCCPAUX
PS Auxiliary Logic Supply
VCCPAUX is a 1.8V nominal supply that powers all of the PS auxiliary circuits.
VCCPLL
PS PLL Supply
VCCPLL is a 1.8V nominal supply that provides power to the three PS PLLs and additional analog circuits.. It is derived from the VCCPAUX supply
VCCO_MIO
PS MIO Power Supply
VCCO_MIO is a 1.8–3.3 volt supply which powers the I/O Bank 500 and 501, which contains PS_MIO[53:0], PS_CLK, and PS_POR_B I/Os
VCCO_DDR
PS DDR I/O Supply
VCCO_DDR is a 1.2V–1.8V nominal supply that supplies the DDR I/O bank input and output drivers. This supply sources the DDR output drivers, input receivers and termination circuitry.
VCCINT
PL Internal Logic Supply
VCCINT is a 1.0V nominal supply that powers all of the PL internal logic circuits.
VCCAUX
PL Auxiliary Logic Supply
VCCPAUX is a 1.8V nominal supply that powers all of the PL auxiliary circuits.
VCCO :
PL IO Power Supply
VCCO is a 1.2V–3.3V nominal supply that supplies the I/O banks input and output drivers.


3.2 ZC702 Power Distribution:


The ZC702 board uses power regulators and a PMBus compliant system controller from Texas Instruments to supply core and auxiliary voltages. The ZC702 board uses 12 V Input supply to power the board.
There are 5 switching regulators (PTD08D210W) and 1 linear regulator which generate different voltages required for the Zynq700 APSoC as well as the on-board components present on the ZC702 board.


ZC702 Power Supplies.PNG
Table 2 ZC702 Power Supplies


The voltage output of these regulators are monitored and controlled by three TI power controllers (UCD9248PFC). The power distribution diagram for ZC702 board is as shown in Figure 2.
ZC702 Power Distribution.PNG
Figure 2 ZC702 Power Distribution


The three onboard TI power controllers (UCD9248) are PMBus Specification 1.1 compliant and are wired to the same PMBus. The PMBus can be accessed via the PMBus connector, J59 using the TI Fusion USB cable and TI Fusion Digital Power Designer GUI.
Please refer to the ZC702 Evaluation board user guide and schematics for information on the connections and the part numbers used on the ZC702 board.

4. Setting up the Zynq Base TRD

This techtip will use the TI Fusion Digital Power Designer and perform some power measurements while running the video demo applications using the Zynq TRD.
The Zynq Base TRD is an embedded video processing application designed to showcase various features and capabilities of the Zynq Z-7020 AP SoC device for the embedded domain. The Base TRD consists of two elements: The Zynq-7000 AP SoC Processing System (PS) and a video processing pipeline implemented in Programmable Logic (PL). The AP SoC allows the user to implement a video processing algorithm that performs edge detection on an image (Sobel filter) either as a software program running on the Zynq-7000 AP SoC based PS or as a hardware accelerator inside the AP SoC based PL. The Base TRD demonstrates how the user can seamlessly switch between a software and a hardware implementation and evaluate the cost and benefit of each implementation.
In order to run this tech tip, setup the ZC702 board as explained in the “Running Video Demo Applications” section of Zynq Base TRD 2013.2 wiki page. This section also explains on video demonstration part of the TRD and running different video demonstrations out of the box.
Zynq Base TRD setup using ZC702.PNG
Figure 3 Zynq Base TRD setup using ZC702

.

5. Implementation

Design Type
PL
SW Type
Linux
CPUs
2 ARM Cortex-A9 666MHZ
PS Features
  • DDR3 533 MHZ
  • Cache
L1 and L2 Cache
PL Features
Xylon Video Controller, Sobel Filter
Boards/Tools
ZC702
Xilinx Tools Version
Vivado 2013.2
Files Provided
Zynq7000AP_SoC_ZC702__Fusion_project.zip
See Appendix B for the descriptions of the files

6. Step by Step Instructions

6.1. Setting up the TI USB cable

  1. Download and install the TI Fusion Digital Power Designer from TI website on your Windows machine.
  2. On the TI USB Adapter connect the Ribbon Cable and the USB Cable as shown below.
    TI USB Cable Connections.PNG
    Figure 4 TI USB Cable Connections
  3. Connect the Ribbon Cable from the TI USB cable to J59 on the ZC702 board with the red stripe towards pin 1. The header J59 is located on the underside of the board as shown below.
    J59 Connector under ZC702 board.PNG
    Figure 5 J59 Connector under ZC702 board
  4. Connect the “A” end of the USB cable into your PC USB port.

6.2. Running the Zynq base TRD.

  1. Unzip the Zynq7000AP_SoC_ZC702_Fusion_project.zip file on to your hard drive.
  2. Copy the SD card Image files from”Zynq7000AP_SoC_ZC702__Fusion_project\trd_images” directory onto the primary partition of the SD-MMC card which is formatted as FAT32 using a SD-MMC card reader.
  3. Insert a SD-MMC memory card, which contains the TRD binaries, into the SD slot on the ZC702 board.Make sure the switches are set as shown in figure below, which allows the ZC702 board to boot from the SD-MMC card.
    Setting up boot straps to boot from SD card.PNG
    Figure 6 Setting up boot straps to boot from SD card
  4. If an older ZC702 rev.x version boards does not have switches and contains jumpers. Use the following jumper settings: J21: 2-3, J20: 2-3, J22: 1-2, J25: 1-2, J26: 2-3
  5. Power on the ZC702 board.Wait for the ZC702 board to be configured and booted with Linux. After approximately 2 minutes, a XILINX ZYNQ banner displays on the monitor, as shown in the figure.The Qt-based video demonstration application starts. The GUI application shows up at the bottom of the display monitor.
    QT window on the display connected to ZC702.PNG
    Figure 7 QT window on the display connected to ZC702.
  6. Next you will launch the TI Fusion Power designer software to monitor the different power supply rails while the TRD is running.

6.3. Setting up the TI Fusion Power designer for performing power measurements.


  1. Launch the TI Fusion Design Online tool by clicking on the icon installed on your desktop.
  2. The TI Fusion Power design tool will automatically search for the TI USB Cable as well as the three PM-Bus controllers before the GUI is completely launched.
    Once the Fusion Power designer software successfully detects the PM bus controllers the GUI is launched as is displayed as follows.
    TI Fusion Power Designer GUI default view.PNG
    Figure 9 TI Fusion Power Designer GUI default view
  3. Select File --> Import Project to open a preloaded power supply configuration.
  4. Click on Select file and browse to “Zynq7000AP_SoC_ZC702__Fusion_project\ \TI_Fusion_project” directory and select the powertop.xml file.
    Selecting the powertop.xml project file.PNG
    Figure 10 Selecting the powertop.xml project file.
  5. Select Next.
    Select Project Items to Import Dialog.PNG
    Figure 11 Select Project Items to Import Dialog
  6. Ensure that only Import Rail Names, Pin Names and other Sequencing Related GUI Preference option is checked and remaining other options are unchecked.
  7. Click Next --> OK to close the dialog and you should see that the appropriate rail names have been assigned to the three onboard TI power controllers (U32 at address 52, U33 at address 53, and U34 at address 54) in the “Select Rail To Edit “ of the configure view.
    Select Rail to Edit View.PNG
    Figure 12 Select Rail to Edit View

Description of the each power rail is provided in the following table.
Table 3 Power supply Details
Device
Rail
Net Name
Vout
Regulator monitored
Description
UCD9248@52D
1
VCCINT
1.0V
PTD08D210W(U17) VoutA
1.0V nominal supply of Zynq 7000 that powers all of the PL internal logic circuits.
UCD9248@52D
2
VCCPINT
1.0V
PTD08D210W(U17) VoutB
1.0V nominal supply that powers all of the PS internal logic circuits.
UCD9248@52D
3
VCCAUX
1.8V
PTD08D210W(U18) VoutA
1.8V nominal supply that powers all of the PL auxiliary circuits.
UCD9248@52D
4
VCCPAUX
1.8V
PTD08D210W(U18) VoutB
1.8V nominal supply that powers all of the PS auxiliary circuits.
UCD9248@53D
1
VCCADJ
2.5V
PTD08D210W(U19) VoutA
Supplies power to the VCCADJ power net on the ZC702 board.
The list of components powered by VCCADJ net apart from the Zynq 7000 on ZC702 board is listed in the Appendix A: List of Components using the ZC702 power supplies section.
UCD9248@53D
2
VCC1V5PS
1.5V
PTD08D210W(U19) VoutB
Supplies power to the VCCO_DDR power domain of the Zynq 7000 as well as the 4 Micron DDR3 (MT41J256M8HX-15E) components on the ZC702 board. This is a 1.5V nominal supply that supplies the DDR I/O bank input, output drivers and termination circuitry.
UCD9248@53D
3
VCC_MIO
1.8V
PTD08D210W(U20) VoutA
Supplies power to the VCC_MIO power net on the ZC702 board.
VCC_MIO supplies power to PS_MIO power domain of the 1.8V nominal supply that supplies power to the PS_MIO [53:0], PS_CLK, and PS_POR_B I/Os banks of Zynq 7000 as well few components on the ZC702 boards.
The list of components that are powered by VCC_MIO supply apart from the Zynq 7000 on ZC702 board is listed in the Appendix: List of Components using the ZC702 power supplies section.
UCD9248@53D
4
VCCBRAM
1.0V
PTD08D210W(U20) VoutB
Supplies power to VCC_BRAM power domain of Zynq7000. VCC_BRAM is a 1.0V nominal supply that supplies power to all the Block RAMs available in the Zynq Programmable Logic.
UCD9248@53D
1
VCC3V3
3.3V
PTD08D210W(U21) VoutA
The VCC3V3 supplies 3.3v power to the components available on the board which also includes the UCD9248 power controller itself. The list of components that are powered by VCC3V3 on ZC702 board is listed in the Appendix A: List of Components using the ZC702 power supplies section.
UCD9248@53D
2
VCC2V5
2.5V
PTD08D210W(U21) VoutB
The VCC2V5 supplies 2.5v power to few PL IO banks as well as the components available on the board. The list of components that are powered by VCC2V5 on ZC702 board is listed in the Appendix: List of Components using the ZC702 power supplies section.

Caution! The Texas Instruments Fusion Digital Power Designer used in this techtip can adjust the power supply outputs on the ZC702. If used improperly, it may seriously damage your ZC702. Understand the power requirements for Zynq-7000 Devices as described in the above sections before making any changes to the power supplies.

6.4. Monitoring Voltage and Current using the Fusion Power Designer.

In order to monitor each of these power supplies controlled by the UCD9248 PMBus controller, select the “Monitor” option on Fusion Power Designer Flow Navigator as shown below.
This will open the monitor page of UCD9248 power rails which provides graphical representation of the input/output voltages and currents supplied to/by the PTD08D210W switching regulators as described in Table 3 Power supply Details
TI Fusion Designer Monitor Default view.PNG
Figure 13 TI Fusion Designer Monitor Default view.

Select the arrow button on the top right corner of the TI Fusion Digital Power Designer GUI. You should see a list of all the power rails available on the three UCD9248 power controller parts available on the ZC702 board.
Selecting different power rails to Monitor.PNG
Figure 14 Selecting different power rails to Monitor.

You can select any of the power rail that you would like to monitor from this list.

6.5. Measuring and analyzing the power consumption of Zynq Base TRD.

  1. On the TI Fusion Designer GUI, Select the UCD9248 @Address 52 Rail #1 –VCCINT option in the Monitor page to monitor the VCCINT power supply.
  2. On the Qt-based video GUI application displayed on the bottom of the display monitor connected to the ZC702 board, Select Enable Video.
  3. This will start the internal test pattern generator which is displayed on the display monitor.
  4. Notice the change in the Pout Output Power graph on the TI Fusion Designer GUI UCD9248 Power rail #1 –VCCINT Monitor page.
    Change in UCD9248 Power rail #1 –VCCINT power when Enable Video option is enabled.PNG
    Figure 16 Change in UCD9248 Power rail #1 –VCCINTpower when Enable Video option is enabled
  5. At the same time observe the HP Port 0 AXI bandwidth usage in the QT window.
    Change in HP0 AXI Bandwidth usage when Enable Video option is enabled.PNG
    Figure 18 Change in HP0 AXI Bandwidth usage when Enable Video option is enabled

    This clearly demonstrates that by starting the internal test pattern generator, the amount of data being sent to the display controller operation has increased and PL logic has more dynamic switching which has shown an increase in power consumption of the VCCINT rail which powers the internal PL logic circuits.
  6. On the TI FUSION Designer GUI, Select the UCD9248 @Address 52 Rail #2 –VCCPINT option in the Monitor page.
    This page will monitor the VCCPINT power supply which supplies power to the internal PS logic circuits.
  7. On the Qt-based video GUI application, Change the Sobel Mode from OFF to SW.
    By doing this the Sobel Video processing (edge-detection filter) is done by software code which running on the PS.Notice the change in the Pout Output Power graph on the TI Fusion Designer GUI UCD9248 Power rail #2 –VCCPINT Monitor page.
    incpower.PNG
    Figure 19 Increase in power due to Sobel Processing in Software
  8. At the same time observe the CPU1 Usage usage in the QT window
    Increase in CPU utilization indicating cpu cycles being consumed to perform sobel filtering.PNG
    This clearly demonstrates that by starting Sobel Operation in software the CPU 1 utilization has increased and the power consumption of the Processing System has also increased.
  9. Similarly try to change the Sobel Mode from SW to HW and observe the power consumption of the UCD9248 Power rail #2 –VCCPINT rail.

7. Conclusion:

This tech tip has explained how to access the TI Power Controllers and measure the power consumed by the ZC702 board using the TI Fusion USB cable and TI Fusion Digital Power Designer.

Although Zynq Base TRD has been used in this techtip to demonstrate the power consumption of the ZC702 board. The same principle can be applied to any design to measure power consumption of each rail on the ZC702 board.



8. Appendix A: List of Components using the ZC702 power supplies.


The following list provides information about the components powered by different power regulators on the ZC702 board.

8.1. Components powered by VCC3V3:

S No
Qty
Designator on ZC702
Type
Part Number
Model
Component in schematic
1
1
U2
IC Supervisor
MAX16025
Maxim
MAX16025TE+
2
1
U3
IC Translator
TXS0104E
TI
TXS0104EDR
3
3
U4,U5,U6
IC Multiplexor
CD74HC4051
TI
CD74HC4051PWT
4
1
U7
IC EEPROM
M24C08-WDW6TP
ST Micro
M24C08-WDW6TP
5
1
U8
IC Bus Transceiver
SN74AVC2T245
TI
SN74AVC2T245RSWR
6
1
U9
IC USB interface
USB3320
SMSC
USB3320C-EZK-TR
7
1
U13
IC Power Switch
MIC2025
MICREL
MIC2025-1YM
8
1
U15
IC Buffer
SN74LV541APWR
TI
SN74LV541APWR
9
1
U16
IC Clock
RTC8564JE
EPSON
RTC-8564JE:3:ROHS
10
1
U22
Voltage Regulator
TPS51200DRCT
TI
TPS51200DRCT
11
1
U23
IC/Socket
DIGILENT_USB_JTAG_2
DIGILENT
JTAG-SMT1
12
2
U25,U26
IC Switch
NC7SZ66P5X
Fairchild
NC7SZ66P5X
13
1
U28
Oscillator
10MHZ-810MHZ
SILABS
570BAB000544DG
14
3
U32,U33,U34
IC Controller
UCD9248PFC
TI
UCD9248PFC
15
1
U40
IC Transmitter
ADV7511
ANALOG
ADV7511KSTZ-P
16
1
U41
Memory
N25Q128A
MICRON
N25Q128A11ESF40
17
1
U43
Oscillator
200MHZ
SiTime
SIT9102AI-243N25E200.0000
18
1
U44
IC I2C Switch
PCA9548ARGER
TI
PCA9548ARGER
19
2
U56,U57
IC Repeater
PCA9517
TI
PCA9517DR
20
1
U61
IC Port Expander
TXS02612
TI
TXS02612RTWR
21
2
U70,U79
IC Translator
TXS0108E
TI
TXS0108EPWR
22
3
U75,U76,U77
IC Switch
TS5A3359DCUR
TI
TS5A3359DCUR
23
1
U78
Filter
50MOHM
MURATA
BNX016-01
24
1
U80
IC Expander
TCA6416A
TI
TCA6416APWR
25
1
U81
IC Translator
TXS0102
TI
TXS0102DCUR
26
3
U83,U84,U86
IC Buffer
NC7WZ07
FAIRCHILD
NC7WZ07P6X

8.2. Components powered by VCCMIO

S No
Qty
Designator
Type
Part No
Model
Component in schematic
1
1
U3
IC Translator
TXS0104E
TI
TXS0104EDR
2
1
U35
Ethernet Xceiver
88E1116R
MARVELL
88E1116RA0-NNC1C000
3
1
U36
IC Controller
CP2103GM
Silicon Labs
CP2103-GM
4
1
U41
Memory
N25Q128A
MICRON
N25Q128A11ESF40
5
1
U61
IC Port Expander
TXS02612
TI
TXS02612RTWR
6
1
U62
IC Gate
SN74LVC1G11
TI
SN74LVC1G11DCKR
7
1
U64
IC Gate
SN74LVC1G08
TI
SN74LVC1G08DCKR
8
1
U81
IC Translator
TXS0102
TI
TXS0102DCUR

8.3. Components powered by VCC2V5

S No
Qty
Designator
Type
Part No
Model
Component in Schematic
1
1
U8
IC Bus Transceiver
SN74AVC2T245
TI
SN74AVC2T245RSWR
2
1
U31
Oscillator
12.00000MHZ
SiTime
SIT8102AN-23-25E-12.0000T
3
4
U37,U38,U39,U71
IC Translator
SN74AVC1T45
TI
SN74AVC1T45DCKR

8.4. Components powered by VCCADJ

S No
Qty
Designator
Type
Part No
Model
Component in schematic
1
2
U56,U57
IC Repeater
PCA9517
TI
PCA9517DR
2
2
U70,U79
IC Translator
TXS0108E
TI
TXS0108EPWR

8.5. Components powered by VCC1v8


S No
Qty
Designator
Type
Part No
Model
Component in Schematic
1
1
U65
Oscillator
33.33333MHZ
SITIME
SIT8103AC-23-18E-33.33333

8.6. Components powered by 1.5V

S No
Qty
Designator
Type
Part No
Model
Component in Schematic
1
4
U66,U67,U68,U69
IC/Socket
MT41J256M8HX_15E
MICRON
MT41J256M8HX-15E









9. Appendix B: File Descriptions

  • Zynq7000AP_SoC_ZC702__Fusion_project \ TI_Fusion_project\powertop.xml
    • TI Fusion Power Supply Project for ZC702.
    • Zynq7000AP_SoC_ZC702__Fusion_project \ trd_images
      • Contains Zynq Base TRD sdcard images files.