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Altera_Forum
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16 years ago

EPCS device programming error:"Can't recognize silicon ID for device "?!

Hi all, Cyclone3 (3C25E144) and EPCS16 (SOIC-16) are used in my project, and I use serial flash loader(SFL) to program the serial configuration device with *.jic file. When I try to program EPCS16...
Altera_Forum's avatar
Altera_Forum
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16 years ago

The error means, that a SFL instance can be found, but can't read data from the flash memory. Usually it's a hardwrae problem. I would check, if any flash pins are operated by the SFL during access. Normally all inputs (nCS, DCLK, ASDI) should be toggled and DATA should send a response. Check what's possibly missing.

Also, for Cyclone III, the two dual-purpose pins driving the flash memory (ASDO and FLASH_nCE) should be configured as regular I/O and Data[0] as tri-stated input.