FREQUENCY DOUBOULER BY MAX PLUS......

[ftls1@uaf.edu]

HI,ALL~

NOW I WANT TO DOUBLE A CLOCK OF 50HZ WITH UNCERTAIN LEADING EDGES,
ACTUALLY THIS IS A FEEDBACK SIGNAL FROM AN EXTERNAL INPUT,HOW CAN I
GET A PRECISE OUTPUT OF 100HZ CLOCK?

I'VE SEARCHED THE MAX PLUS II, I COULDN'T FIND APEX 20K SERIES
DEVICES, THAT MEANS I MUST USE THE PLL OR CLKLOCK FOR APEX 10K?
HOW TO USE THOSE DEVICES? COULD SOME GENTALMEN OR LADY GIVE ME A
EXAMPLE TO SHOW HOW TO DEFINE THE PINS PARAMETERS?

ONLY QUARTUS II HAS THE 20K SERIES DEVICES, IS IT TRUE?

NOW I JUST USE A 8-BIT-COUNTER TO GENERATE A 100 HZ SIGNAL BY A 5KHZ
CLOCK, HOWEVER, THIS IS NOT LOCKED TO THE 50HZ,THERE WOULD BE A PHASE
DELAY BETWEEN LEADING EDGES OF BOTH TWO.

BY THE WAY, DO YOU GUYS KNO ANY AVAILABLE 16-BIT-SYNCHRONIZER-COUNTER
IN MAX PLUS II? I WANT TO GET A 50-50 DUTY CYCLE SIGNAL BY
16-BIT-COUNTER, ANY GREY CODE OR OTHERS WOULD BE OKEY FOR ME.



ADV-THANKS-ANCE~

FTLS1@UAF.EDU

 

[ftls1@uaf.edu]

I solved it by myself.
I just made a delay and use some counters, anyway, thanks.

ftls1@uaf.edu (ftls1@uaf.edu) wrote in message news:<44042ede.0405201959.269935b@posting.google.com>...

HI,ALL~

NOW I WANT TO DOUBLE A CLOCK OF 50HZ WITH UNCERTAIN LEADING EDGES,
ACTUALLY THIS IS A FEEDBACK SIGNAL FROM AN EXTERNAL INPUT,HOW CAN I
GET A PRECISE OUTPUT OF 100HZ CLOCK?

I'VE SEARCHED THE MAX PLUS II, I COULDN'T FIND APEX 20K SERIES
DEVICES, THAT MEANS I MUST USE THE PLL OR CLKLOCK FOR APEX 10K?
HOW TO USE THOSE DEVICES? COULD SOME GENTALMEN OR LADY GIVE ME A
EXAMPLE TO SHOW HOW TO DEFINE THE PINS PARAMETERS?

ONLY QUARTUS II HAS THE 20K SERIES DEVICES, IS IT TRUE?

NOW I JUST USE A 8-BIT-COUNTER TO GENERATE A 100 HZ SIGNAL BY A 5KHZ
CLOCK, HOWEVER, THIS IS NOT LOCKED TO THE 50HZ,THERE WOULD BE A PHASE
DELAY BETWEEN LEADING EDGES OF BOTH TWO.

BY THE WAY, DO YOU GUYS KNO ANY AVAILABLE 16-BIT-SYNCHRONIZER-COUNTER
IN MAX PLUS II? I WANT TO GET A 50-50 DUTY CYCLE SIGNAL BY
16-BIT-COUNTER, ANY GREY CODE OR OTHERS WOULD BE OKEY FOR ME.



ADV-THANKS-ANCE~

FTLS1@UAF.EDU