microcontroller for programming FPGA over JTAG

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I want to use a microcontroller in my design to program my fpga at power on time, by reading the configuration bitstream from a nand or nor flash, then programming the fpga via passive serial connected to the microcontroller.

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This is a much simpler proposition then.

You just need to wire the FPGA configuration pins for passive serial, or fast passive parallel mode, and toggle the pins at the FPGA to program it appropriately. This is all described here for a VHDL implementation, but you'll get the picture:

http://www.ovro.caltech.edu/~dwh/carma_board/fpga_configuration.pdf (http://www.ovro.caltech.edu/%7edwh/carma_board/fpga_configuration.pdf)

Cheers,

Dave