I don't need PWM, I need frequency
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Re: Need to get 4 independently controllable frequency outputs, PBP can do that?
I don't need PWM, I need frequency
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Re: Need to get 4 independently controllable frequency outputs, PBP can do that?
4 separate PIC's with NCO modules. Done..... Why add unnecessary hardware?
Dave Purola,
N8NTA
EN82fn
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Re: Need to get 4 independently controllable frequency outputs, PBP can do that?
I have a project I was using 3 PICs for 3 NCOs. I updated it adding a touch screen to replace buttons & LEDs, and while at it, replaced 3 PICs with a single PIC18F27Q43 (have to use MPLABX & XC8 since PBP doesn't yet cover that part). That still leaves one more NCO for you.Originally Posted by Dave
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Re: Need to get 4 independently controllable frequency outputs, PBP can do that?
and 3 extra PIC chips does not count as extra hardware, but CD4536 does?
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Re: Need to get 4 independently controllable frequency outputs, PBP can do that?
Please,Please explain how you are going to get a single CD14536 to support 4 independent frequency's. I must be REAL stupid.....
Dave Purola,
N8NTA
EN82fn
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Re: Need to get 4 independently controllable frequency outputs, PBP can do that?
Either 4 pics or 4 CD4536...
He meant that in either case you need 4 chips. PIC's need also programming but CD.. need some parts.
Ioannis
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Re: Need to get 4 independently controllable frequency outputs, PBP can do that?
CD does not need any extra part. Frequency input of all 4 is connected to PICs HPWM output, which allows to do some extra things - since all these frequencies will be driving stepper motors, having them controlled by master clock (HPWM) will allow to make smooth startup and stopping
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