I'm designing an Altera NIOS (could be Xilinx equivalent) CPU system with external FLASH (and RAM) memory. The Altera FPGA (probably ACEX1K) has a JTAG port so when I get the 1st prototype I can download a configuration using the JTAG. But how can I program the FLASH when it's soldered on the board?
I can't find a FLASH with a JTAG interface. I can't preprogram the FLASH since I don't have the code before assembly and probably want to change it even in the field.
Any suggestions?
Thanks George