how to reconfigure an SRAM based FPGA

[0levanhoc]

FPGAMCU.exe

This application note shows how to reconfigure an SRAM based FPGA
using a flash based microcontroller. The text for "Controlling
FPGA Configuration with a Flash-Based Microcontroller" can be
found by clicking on the Web site icon, or by dialing up Atmel's
faxback system (1-800-29-ATMEL or International: 1-408-441-0732)
or by referring to section 4 of the Atmel Microcontroller databook
which can be ordered through Atmel's literature department (408-436-4126).

This self extracting file expands into the following files
pertaining to the application note:

FPGAMCU.ASM 80C51 assembly source code

 

[elektrom]

There are many ways to configure. We could learn from datasheet or application note. We could use small CPLD or MCU or the other device. It depends on configuration mode support on each FPGA.

 

[calvinhorng]

agree
But did anayone thry to emulate the JTAG
command for FGPA configuration download?

Just asking and I am interested in that part.

 

[Ohh]

Recently I have written a program both in C and Java which I use to program the Xilinx Virtex/E FPGA. I use the JTAG mode to configure the device over the Parallel Port. It is not difficult to do if you follow the application notes provided by Xilinx. You can also use a microcontroller instead of a host PC to configure the FPGA device via JTAG interface.
Altera also provides an example code in C for configuring Altera devices using JTAG interface and uC.