zedboard fmc

hi
I am currently working on zedboard ZC702 along with ad-fmcomms1-ebz...My need is to transmit and receive signals using both the boards..My doubt is that how to assign pin configurations for fmc of zedboard??? what are the steps to be followed to transmit a digital data through fmc of zedboard to DAC present at ad-fmcomms1-ebz????help me plz to have a clear idea of assigning pins of fmc....

0 narrucmot over 11 years ago

If you are looking to use the FMCOMMS1 FMC with the ZC702 or ZedBoard, you may want to look at the example designs and SD card images posted here:
http://wiki.analog.com/resources/eval/user-guides/ad-fmcomms1-ebz/quickstart/zynq

In general the XDC constraints for mapping the Zynq device pin to the FMC connector are something like this:
set_property PACKAGE_PIN <pin_number> [get_ports {<port_name>}]

You will also need to set the voltage standard:
set_property IOSTANDARD LVCMOS<xx> [get_ports -filter { IOBANK == 35 } ]

See this posted XDC file for a complete example:
http://zedboard.org/sites/default/files/documentations/zedboard_master_XDC_RevC_D_v1a.zip

To map the FMCOMMS1 FMC signals to the Zynq device correctly you will need the schematics for the FMC module (wiki.analog.com) and ZedBoard (http://zedboard.org/sites/default/files/documentations/ZedBoard_RevD.2_Schematic_130516.pdf).

--Tom
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0 Former Member over 11 years ago

hello..
To transfer digital data from zedboard to dual channel dac AD9122 present in ad-fmcomms1-ebz, is that ok to make changes in the pin locations of xdc file or there should be a separate interface program for feeding data through fmc to dac??? what are the nets to be considered incase of making changes in the xdc file???
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0 Former Member over 11 years ago

As Tom explains above, if you are going to design your own logic interface in the Zynq device on the ZedBoard to the DAC on the ad-fmcomms1 board you will need to look at the schematic of the ad-fmcomms1 boards ( located here: http://wiki.analog.com/resources/eval/user-guides/ad-fmcomms1-ebz/hardware ) and trace that back to the FMC connector to the ZedBoard and then match that physical trace to the signal name in the xdc file to associate it with the actual Zynq device pin.
As an example, if you want to drive the DAC_FRAME_P and DAC_FRAME_N differencial signal pair on the ad-fmcomms1 board, look at the ad-fmcomms1 schematic and see that they are connected to the FMC connector pins H16 and H17 respectively. They look at the ZedBoard schematic to see that the signals connected to FMC connector pins H16 and H17 are labeled FMC-LA11_P and FMC-LA11_N. Looking at the .xdc file supplied for the ZedBoard you can see that these signals are connected to Zynq device pints N17 and N18.

In your design you can name the differential signals you want to drive DAC_FRAME on the ad-fmcomms1 board as FMC-LA11_P and FMC-LA11_N to use the .xdc constraints file as it is, or modify the .xdc file to rename the nets for these pins to match the signal names in your design.

-Gary
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0 Former Member over 10 years ago

Hi,
Lets say I want to input the analog signals IO_L7N_TI_AD2N and IO_L7P_TI_AD7P through the pins B15 and C15 which are labeled as FMC-LA30_N and FMC-LA30_P. My problem is how to give the input to the FMC LPC? Should I use sth like

http://avnetexpress.avnet.com/store/em/EMController/Connector-Headers-and-PCB-Receptacles/Samtec-Inc/ASP-134606-01-BLK/_/R-5004319641302/A-5004319641302/An-0?action=part&catalogId=500201&langId=-1&storeId=500201&listIndex=-1&page=1&rank=0

or is there some special cable or adaptor that I can use to give the input?

Thanks in advance, :)
Bests,
u00D6ncu00FC
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0 Former Member over 10 years ago

Hi,
Lets say I want to input the analog signals IO_L7N_TI_AD2N and IO_L7P_TI_AD7P through the pins B15 and C15 which are labeled as FMC-LA30_N and FMC-LA30_P. My problem is how to give the input to the FMC LPC? Should I use sth like

http://avnetexpress.avnet.com/store/em/EMController/Connector-Headers-and-PCB-Receptacles/Samtec-Inc/ASP-134606-01-BLK/_/R-5004319641302/A-5004319641302/An-0?action=part&catalogId=500201&langId=-1&storeId=500201&listIndex=-1&page=1&rank=0

or is there some special cable or adaptor that I can use to give the input?

Thanks in advance,
Bests,
u00D6ncu00FC
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