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In-Circuit programming of XC9500XL with PIC18F

Rob Young
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      10-31-2005, 02:36 PM
I'm interested to know if anyone has successfully programmed a Xilinx
XC9500XL CPLD with a PIC18F using the Xilinx JTAG/TAP port. I've been
reading Xilinx app note 058 and it looks feasible. The inbound data stream
(SVF or XSVF file) would be coming into the PIC18F via a USB connection.
This is for the purposes of occasional field-upgrades, not the frequent
reconfigurations you would have with an FPGA using the USB & PIC combination
to eliminate its boot PROM.


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      11-02-2005, 05:01 AM
It's possible. Been doing it for years.

However, still using Foundation 3.1i because the .svf file generated is a
reasonable size. I load the .xvf image into the uC flash memory then
launch the JTAG flash routine.

Did an .xvf to .h (Const data) translator in Delphi to link to HiTech-18

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