Если надо через JTAG FPGA, то можно с помощью Universal Scan.
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A Supplement to the Universal Scan User Guide
Programming Flash memories With Universal Scan is easy.
It doesn’t require any fancy hardware, tools or connections, and provides you with a great way to get data files into an otherwise inaccessible memory device.
You just tell it how the prom is connected to the JTAG chain, select a data file and hit the program button.
Триал версии 7.2 весит 23М в zip-е. Лекарство на него есть...