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Altera_Forum
Honored Contributor
10 years agohow do I generate 32k clock from cyclone V pll
Hi, How do I use altera pll to generate 32k frequency in cyclone V? I need help for this one. Thanks
Altera_Forum
Honored Contributor
10 years ago --- Quote Start --- Use the 'counter out to out cascade mode' of the Cyclone V PLL. For a 50MHz ref clock input (for example), use a multiply by 4 and divide by 25 to generate an 8.0MHz clock on pll_output_0. Then use pll_output_0 to pll_output_1 cascade mode with a division factor of 250 to generate 32.0KHz ( = 8.0MHz / 250 ) on pll_output_1. --- Quote End --- Hi, If I did this way, I got some error message like "the specified configuration causes VCO to go beyond the limit", and don't allow me to click finish button. what happen? Thanks, Jeff