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Altera_Forum
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13 years ago

programming cyclone IV with microcontroller

Hi this is franticAF and this is my first post. I'm working on board where an Altera Cyclone IV EP4CE6E22I7N is mounted (with attached flash memory EPCS4). A microcontroller is also present in ...
Altera_Forum's avatar
Altera_Forum
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13 years ago

This will depend on a couple of things:

- How is the microcontroller connected to the FPGA? Can you drive DCLK, DATA0, nCONFIG signals of the FPGA from the MCU?

- How are the FPGA MSEL pins connected?

A simple way to accomplish this is to use the Passive Serial config mode and the SPI interface of the MCU (or bit-bang it if the MCU does not have SPI).

If you send more details, it would be easier to find a solution.