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PWM to ADC sync pulse

Started by Roelof Oelofsen May 13, 2002
Good morning,

I am using the PWM on the 56f807 to send out voice band signals and the
ADC to sample these signals. At the moment I am sending it out at 32k
samples/sec. I only want to read it at 8k samples/sec though. Is there
any way that I can divide the sync pulse that come from the PWM by 4
before I send it to the ADC?

Thanks in advance for your assistance
Roelof Oelofsen
Telkom Development Laboratory
Telkom SA




Hi there,

Do you need it in assembly, because I have used the SDK v2.4 to
generate the example. Let me know if this will be of any help and I will
send it to you.

You can also take a look in the SDK folder under applications they have
written a PWM example. I used their example as a base for my example.

Take note that you have to update the appconfig.h

Kind regards
Roelof Oelofsen
Telkom development laboratories
Telkom SA

>>> "karine michalet" <> 05/13/02 09:00AM
>>>
Hello,
I can't help you for you problem but I think you can help me.
I try to generate a PWM signal on DSP 56F807 and I don't succeed. Could
you send me, if it is possible a program in assembly specially the init
of PWM.
Thank you
Karine MICHALET
----- Original Message -----
From: Roelof Oelofsen
To:
Sent: Monday, May 13, 2002 7:54 AM
Subject: [motoroladsp] PWM to ADC sync pulse Good morning,

I am using the PWM on the 56f807 to send out voice band signals and
the
ADC to sample these signals. At the moment I am sending it out at
32k
samples/sec. I only want to read it at 8k samples/sec though. Is
there
any way that I can divide the sync pulse that come from the PWM by 4
before I send it to the ADC?

Thanks in advance for your assistance
Roelof Oelofsen
Telkom Development Laboratory
Telkom SA
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