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Altera_Forum
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14 years ago

Cyclone III configuration scheme

Hi I'm confuse with Cyclone fpga family and configuration schemes. In school we have an Altera board with a Cyclone II fpga, I know that the board use an EPC2 configuration device and w...
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Altera_Forum
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14 years ago

If you want to flash a configuration in the EPCS and have the FPGA load it automatically on power on, you need to configure the MSEL pins in one of the AS schemes, for example 0010 (AS with Standard POR)

If you put all the MSEL pins to ground (passive serial configuration) the JTAG interface will still work, but at power on the FPGA will wait to get a serial stream. The EPCS won't provide one by itself so the FPGA will just wait until to send it something through JTAG.