Dear friend, I searched the google for vhdl coding for frequency divider. I saw your request here. could you please send me that if you got the code. I understand that you send this request on 2002 apr, still iam asking you. Thanks, mukundan ----- Original Message ----- From: lamps98 at h... To: cores at o... Date: Wed, 17 Apr 2002 05:21:36 +0200 Subject: [oc] VHDL code - FREQUENCY DIVIDER

What exactly are you looking for? What divisors do you need to be able to use? Integer only? Do you need to be able to maintain a 50 50 duty cycle? If you want a generic solution, you can easily implement a phase accumulator, which is normally found in a DDFS (Direct Digital Frequency Synthesis) unit. It will allow you to synthesize any frequency you would like (that is 1/2 of your driver clock frequency or less) as long as you don't require a strict 50 50 duty cycle. On 6/6/05, vmb1980 at yahoo.com vmb1980 at yahoo.com> wrote:

What are the frequency of enter and exit ? 2005/6/6, vmb1980 at yahoo.com vmb1980 at yahoo.com>:

Hi all, it's easy, just take a "adder" and build this simple circuit: R(n+1) = R(n) + C R ... Result n ... time tick C ... Constant The frequency out is the "normal" CARRY OUT" of the adder. The f-out is a direct function of "C". Frequency range and resolution can be influenced by selecting the bit-width of the adder and of course the input clock frequency.. And if you want a duty cycle of 50%, but a "divide by 2 - Flip Flop" behind it. -- Simple but the best ;-))) -- Important: Adder and divider have to be synchronous and clocked. Hope this helps Frank _______________________________________________________________ What exactly are you looking for? What divisors do you need to be able to use? Integer only? Do you need to be able to maintain a 50 50 duty cycle? If you want a generic solution, you can easily implement a phase accumulator, which is normally found in a DDFS (Direct Digital Frequency Synthesis) unit. It will allow you to synthesize any frequency you would like (that is 1/2 of your driver clock frequency or less) as long as you don't require a strict 50 50 duty cycle. On 6/6/05, vmb1980 at yahoo.com vmb1980 at yahoo.com> wrote: > Dear friend, > I searched the google for vhdl coding for frequency divider. I > saw your request here. could you please send me that if you got the > code. > I understand that you send this request on 2002 apr, still iam asking > you. > Thanks, > mukundan > > ----- Original Message ----- > From: lamps98 at h... > To: cores at o... > Date: Wed, 17 Apr 2002 05:21:36 +0200 > Subject: [oc] VHDL code - FREQUENCY DIVIDER > > > > > > > i desperately need the VHDL code for a frequency divider ....the > > frequency divider circuit uses a 4 X 4 adder and a D-latch with > > reset > > and a MUX > > > _______________________________________________ > http://www.opencores.org/mailman/listinfo/cores > _______________________________________________ http://www.opencores.org/mailman/listinfo/cores