Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Some problem about CPLD EPM570

Hello, I have some problems about EPM570. What's the GCLK maximum value that could be accepted? I searched datasheet and found it can input higher than 100 MHz. But I input a 100 MHz XTAL and C...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

The actually implemented 2-bit counter has no problems to run at several 100 MHz. So there's apparently a hardware problem with the clock input or something similar. Nothing that could be seen from the given information, unfortunately.