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Altera_Forum
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15 years ago

Cyclone III configuration using M25P16 flash

Hi all, I've recently switched config devices from an ST M25P40 to an ST M25P16 flash for a design using a Cyclone III EP3C10 (in active serial mode). I've wired up the flash as indicated in t...
Altera_Forum's avatar
Altera_Forum
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15 years ago

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Sounds as though the M25P16 has a slightly higher drive strength than the M25P40

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DCLK is driven by the FPGA, not the serial flash. The initial poster didn't tell about the FPGA to flash distance. If it's large, clock signal integrity problems without a series termination aren't surprising.