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Eugeny_Brychkov's avatar
Eugeny_Brychkov
Icon for New Contributor rankNew Contributor
7 years ago

EPCQ x4 electrical conflict

EPCQ datasheet https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/cfg/cfg_cf52012.pdf says on page 43 that in x1 configuration chip's DATA2 and DATA3 pins are to be connected...
Nooraini_Y_Intel's avatar
Nooraini_Y_Intel
Icon for Frequent Contributor rankFrequent Contributor
7 years ago

Hi EBryc,

Different flash devices vendor are designed and built with different features, thus do not be confuse thinking EPCQ and Windbond flash will behave/function exactly the same. If you are going to use EPCQ flash, please just refer to the EPCQ datasheet on how to use it and not compare with other flash device vendor.

The EPCQ device will not be damage regardless you set the Configuration mode to ASx1 or ASx4 in the Quartus project. Even if you set the Configuration mode to ASx4 in the Quartus project design but physically the EPCQ device is connected for ASx1 mode (DATA2 & DATA3 pin connected to VCC), the configuration will still work as ASx1 mode.

Regards,

Nooraini