Zedboard connecting 7segment displayer

Hello,
I was wondering whether it is possible to connect a 4x7-segment led displayer to Zedboard for simple multiplexing purposes. If so please be so kind and explain a little bit of it, I'm totally new to Zedboard.

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0 Former Member over 10 years ago

Conceptually what you describe should be OK. By my count, since JA-5 is ground and JA-6 is 3.3VDC, you will need to use two more signals on the JB connector. There are no electrical specification with the diagram you link to, so you will need to make sure that you do not exceed the voltage and current limits for the Zynq I/O configured as LVCMOS33 with your circuit. The Zynq 7020 data sheet is available here: http://www.xilinx.com/support/documentation/data_sheets/ds187-XC7Z010-XC7Z020-Data-Sheet.pdf

You will need to set your constraints to set the Zynq IO to LVCMOS33. And, since the PMOD IO are directly connected to the Zynq device, you will need to take normal precautions to prevent damage from static discharge or overvoltage conditions.

As a reference Digilent does make a PMOD 7-segment LED display module: http://www.digilentinc.com/Products/Detail.cfm?NavPath=2,401,481&Prod=PMOD-SSD

-Gary
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0 Former Member over 10 years ago

Conceptually what you describe should be OK. By my count, since JA-5 is ground and JA-6 is 3.3VDC, you will need to use two more signals on the JB connector. There are no electrical specification with the diagram you link to, so you will need to make sure that you do not exceed the voltage and current limits for the Zynq I/O configured as LVCMOS33 with your circuit. The Zynq 7020 data sheet is available here: http://www.xilinx.com/support/documentation/data_sheets/ds187-XC7Z010-XC7Z020-Data-Sheet.pdf

You will need to set your constraints to set the Zynq IO to LVCMOS33. And, since the PMOD IO are directly connected to the Zynq device, you will need to take normal precautions to prevent damage from static discharge or overvoltage conditions.

As a reference Digilent does make a PMOD 7-segment LED display module: http://www.digilentinc.com/Products/Detail.cfm?NavPath=2,401,481&Prod=PMOD-SSD

-Gary
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