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Need Help on JTAG-SMT2 device





I am going to use JTAG-SMT2 device for configuration of Spartan 6 LX150 device.

I have the following questions for which i need the answers from this forum:

1. Whether JTAG-SMT2 device can be used for Spartan 6 LX150 device or not?

2. What pin i need to use as VIO in the case of Spartan 6 LX150 device? There are no VIO pins available on S6LX150 device?

3. What should be the voltage values needed for the VIO pin?


Please answer.


Thanks and regards,


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Hi Nagendra,


You should be able to use the JTAG-SMT2 to program your device. The VIO pin is the signal voltage pin and should be routed to a VREF pin on your FPGA. I found a datasheet that has the pinout of your device here http://www.xilinx.com/support/documentation/user_guides/ug385.pdf . The VIO voltage value can be anything between -.5 to 3.75 V according to this datasheet http://www.xilinx.com/support/documentation/data_sheets/ds162.pdf (obviously not too low if you're in a noisy environment!) so I would probably just stick with 3.3V.

Hope this helps!


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