Xilinx ZCU102 User manual

ZCU102 Power Bus Reprogramming

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Contents oCaution!
oXilinx ZCU102 Board
oHardware & Software Requirements
oSetup
oMaxim PowerTool software tutorial

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The Maxim PowerTool software used in this presentation can
adjust the power supply outputs on the ZCU102
If used improperly, it can seriously damage your ZCU102
Before making any adjustments not specifically covered in this
presentation:
–Understand the power requirements for Zynq UltraScale+ MPSoC devices
–Understand the consequences of the change you are making
–Understand that the PMBus devices can ONLY be programmed 4 times
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Caution!

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Xilinx ZCU102 Board

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Maxim MAXPOWERTOOL002# USB-to-PMBus interface dongle
–Maxim Part Number: MAXPOWERTOOL002#
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Hardware Requirements

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Maxim Digital Power Tool
–Maxim File name: MaximDigitalPowerTool_V2.00.01.exe
(version subject to change –use latest version available on Maxim website)
–Download: Latest Release at
http://www.maximintegrated.com/en/design/tools/applications/evkit-
software/index.mvp?id=1183/
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Software Requirements

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Software Setup
Install the Maxim Digital Power Tool

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Connect Maxim Dongle
On the Maxim Dongle
–Connect the Ribbon Cable
–Connect the USB Cable

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Connect Maxim Dongle
Connect the Ribbon Cable to the ZCU102 (J84)
–Red Stripe towards pin 1
– Insert the “A” end of the USB cable into a PC USB port (do not use a docking station
or USB hub port)
–Install J153 jumper to inhibit all FPGA rails
•Required to update XML file
–Turn on the ZCU102 board

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Check Voltage Levels
Open Maxim GUI version v2.00.01 (or later)
Within the Maxim GUI, go to “Dashboard”
–This will automatically start scanning the power rails
Please verify that there are a total of 14 voltage rails shown,
and all except 0x1A and 0x1B voltage rails are disabled
(“Enabled” LEDs turn red)

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Check Voltage Levels
Using the Maxim PowerTool, check that you see the following
(voltages inhibited)
The Power Good LEDs on the ZCU102 will not light up green
upon power-up

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Restoring Power Levels
Unzip the file appropriate to the rev of the ZCU102 you have:
–ZCU102 Rev A: FULL_ZCU102_REVA_ONLY_02172016_FINE_CAL_10904.xml
–ZCU102 Rev B, C, D: FULL_ZCU102_REVB-D_02172016_FINE_CAL_10904.xml
Open the MaximDigitalPower GUI
Verify that all power rails are listed in the GUI:
–0x0A
–0x0B
–0x10
–0x13
–0x14
–0x15
–0x16
–0x17
–0x18
–0x1A
–0x1B
–0x1D

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Maxim PowerTool
Expand the Maxim GUI so that you can see the “Load
Configuration” button on the GUI
Click “Load Configuration” and browse to where you have
saved the appropriate XML file
Load the XML file

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Maxim PowerTool
Once the XML has been programmed in, the GUI will prompt
you to say that the controllers must be re-loaded
A “Task completed, devices will be reloaded” dialog box will
appear indicating that the XML file has been loaded in all of
the devices
Click “OK” and the GUI will rescan all of the regulators on the
board and repopulate them

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Maxim PowerTool
You might need to click the “Search for Devices” button to
refresh the controller information

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Maxim PowerTool
Once the engineer is satisfied that values are loaded, the
“Store User ALL” button in the Dashboard tab will store
configuration in the NVM (non-volatile memory) of each device
–A warning message will appear, and warn you that the MAX20751 has a limited
number of write cycles remaining
– You should press “cancel”, and it will avoid updating the MAX20751
–Why? The supplied XML file only addresses the MAX15303 devices, so no need to
waste a write cycle for the MAX20751 on this board
IMPORTANT: Do not power off the board

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Maxim PowerTool
Power off the ZCU102
Remove jumper J153
Wait 30 seconds
Power on the ZCU102 once more to verify
If the Dashboard does not refresh automatically:
– Click the “Search for Devices” button
–Note that the VFMC_ADJ_10A (located at 0x18) voltage rail will remain disabled –
this is by design
Verify that all Power Good LEDs on the ZCU102 are on
Verify that the FPGA power good LED is green
Open the Maxim PowerTool GUI to verify the correct voltages
on 12V (Input Voltage) and all FPGA rails (Output Voltage)
–You should see 14 rails: 13 green LEDs and 1 red LED (for 0x18)