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Messages - fred

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1
Hardware / Purpose of trimmer capacitors CV1-CV4
« on: February 23, 2017, 09:18:55 PM »
Hi,

what is the purpose of the trimmer capacitors CV1-CV4? They have a range between 1.4 - 3 pF.

And how are they calibrated?

Thx.

2
Firmware / compile FPGA firmware with ISE Design Software
« on: February 19, 2017, 06:42:54 PM »
Hi,

awesome project!

you state that in order to compile the FGPA firmware one needs the ISE Design Software from Xilinx.

Is it sufficient to use the ISE Webpack licensed version of the software?

And is there a special programming setup necessary for writing the firmware into the Spartan6? Or can the FPGA be programmed in the circuit?


Thanks.

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