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Altera_Forum's avatar
Altera_Forum
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8 years ago

Cyclone V Configuration Devices

I've got a Terasic Cyclone V GX development board. I removed the EPCQ256 configuration device and am testing two other alternatives (Macronix MX25L257 and Cypress S25FL128). I created a simple proj...
IDeyn's avatar
IDeyn
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7 years ago

Hi all!

We have the same problem.

We have our custom Cyclone V Board with a W25Q128JVPIQ (Winbond) flash drive.

FPGA configuration from the flash drive did not work successfully until we had soldered into the DCLK gap 50 oHm resistor.

When we cooled the flash drive, the configuration also did not occur. With 27 oHm configuration occurred only on hot (only temperatures close to room temeperature and higher).

We also tried changing the DCLK frequency in "Device and Pin Options > Configuration > Active serial clock source" from 100 MHz to 12.5 MHz. We have the same situation as the colleagues above,

the frequency of 12.5 MHz during configuration changes to 100MHz (see attached picture), that is, we conclude that this setting is ignored.

It is worth noting that we succeeded only with mode ASx1. ASx4 still does not work.

Maybe there is any new information about that issue or related with it?

Best regards,

Ivan