PIC PWM registers

Hi,

I wrote a PWM calculator and code generator :

http://www.micro-examples.com/public/microex-navig/doc/097-pwm-calculator.html

This may help anyone fighting with PIC PWM registers calculations...

Questions & comments are welcome

Bruno

In article <4459d34d$0$19719$8fcfb975@news.wanadoo.fr>,
 "BrunoG" <noreply@micro-examples.com> wrote:

> http://www.micro-examples.com/public/microex-navig/doc/097-pwm-calculator.html

I tried it and the code window was blank.


Specs were: 4MHz, 400Hz and 50%.

Al

"Al" <no.spam@wanted.com> a &#4294967295;crit dans le message de news: 
no.spam-9FF667.09003404052006@news.verizon.net...
> In article <4459d34d$0$19719$8fcfb975@news.wanadoo.fr>,
> "BrunoG" <noreply@micro-examples.com> wrote:
>
>> http://www.micro-examples.com/public/microex-navig/doc/097-pwm-calculator.html
>
> I tried it and the code window was blank.
>
>
> Specs were: 4MHz, 400Hz and 50%.
>
> Al

Hi Al,

I tried with your specs, this is what you should have got :

/*
* PWM registers configuration
 * Fosc = 4000000 Hz
 * Fpwm = 400.64 Hz (Requested : 400 Hz)
 * Resolution is 10 bits
 * Prescaler is 16
 * Ensure that your PWM pin is configured as digital output
 * see more details on http://www.micro-examples.com/
 * this source code is provided 'as this',
 * use it at your own risks
 */
PR2 = 0b10011011 ;
T2CON = 0b00000111 ;
CCPR1L = 0b01001101 ;
CCP1CON = 0b00111100

the calculator uses advanced javascript functions, I tried with the latest 
release of IE, Opera and Firefox. Is your navigator up to date ?

Thanks,

Bruno
http://www.micro-examples.com/public/microex-navig/doc/097-pwm-calculator.html 

On Thu, 4 May 2006 12:11:15 +0200, the renowned "BrunoG"
<noreply@micro-examples.com> wrote:

>Hi,
>
>I wrote a PWM calculator and code generator :
>
>http://www.micro-examples.com/public/microex-navig/doc/097-pwm-calculator.html
>
>This may help anyone fighting with PIC PWM registers calculations...
>
>Questions & comments are welcome
>
>Bruno

Tr&#4294967295;s bon. 


Best regards, 
Spehro Pefhany
-- 
"it's the network..."                          "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com

Hi Bruno,

<font color=#ffffff>

white text on white background doesn't look good
in the source code window....

greets,
Wolf

-- 
From-address is Spam trap
Use: wolfgang (dot) mahringer (at) sbg (dot) at

"Wolfgang Mahringer" <yeti201@gmx.at> a &#4294967295;crit dans le message de news: 
ixo6g.14$Tz6.582808@news.salzburg-online.at...
> Hi Bruno,
>
> <font color=#ffffff>
>
> white text on white background doesn't look good
> in the source code window....
>
> greets,
> Wolf
>
> -- 
> From-address is Spam trap
> Use: wolfgang (dot) mahringer (at) sbg (dot) at
>

Hi Wolfgang,

It seems that some browsers do not apply the black background color from the 
<table bg=#000000> tag correctly, so I removed it, and font tag too.

the code is now printed black on a white background, and should be 
convenient for all users.

Thanks ;-)

Bruno
http://www.micro-examples.com/public/microex-navig/doc/097-pwm-calculator.html

"Spehro Pefhany" <speffSNIP@interlogDOTyou.knowwhat> a &#4294967295;crit dans le message 
de news: rf4k52lgfqetnrm4kos9ef60fm7t0vs3hs@4ax.com...
> On Thu, 4 May 2006 12:11:15 +0200, the renowned "BrunoG"
> <noreply@micro-examples.com> wrote:
>
>>Hi,
>>
>>I wrote a PWM calculator and code generator :
>>
>>http://www.micro-examples.com/public/microex-navig/doc/097-pwm-calculator.html
>>
>>This may help anyone fighting with PIC PWM registers calculations...
>>
>>Questions & comments are welcome
>>
>>Bruno
>
> Tr&#4294967295;s bon.
>
>

;-)) Thanks !

Bruno
http://www.micro-examples.com/public/microex-navig/doc/097-pwm-calculator.html 

BrunoG scrobe on the papyrus:

> "Wolfgang Mahringer" <yeti201@gmx.at> a icrit dans le message de
> news: ixo6g.14$Tz6.582808@news.salzburg-online.at...
> > Hi Bruno,
> > 
> > <font color=#ffffff>
> > 
> > white text on white background doesn't look good
> > in the source code window....
> > 
> > greets,
> > Wolf
> > 
> > --  From-address is Spam trap
> > Use: wolfgang (dot) mahringer (at) sbg (dot) at
> > 
> 
> Hi Wolfgang,
> 
> It seems that some browsers do not apply the black background color
> from the <table bg=#000000> tag correctly, so I removed it, and font
> tag too.
> 
> the code is now printed black on a white background, and should be
> convenient for all users.
> 
> Thanks ;-)
> 
> Bruno
> http://www.micro-examples.com/public/microex-navig/doc/097-pwm-calcula
> tor.html

I'm using Opera version 8.51 and I still don't see any code only a
large table of values. Where should I be looking for the code listing?

-- 
John B

"BrunoG" <noreply@micro-examples.com> wrote in message
news:4459d34d$0$19719$8fcfb975@news.wanadoo.fr...
> Hi,
>
> I wrote a PWM calculator and code generator :
>
>
http://www.micro-examples.com/public/microex-navig/doc/097-pwm-calculator.ht
ml
>
> This may help anyone fighting with PIC PWM registers calculations...
>
> Questions & comments are welcome
>
> Bruno

Looks good, thanks.
 Is there something similar for the USARTs, and other things requiring
multiple register settings where it is so easy to make a mistake?
Bob

"John B" <spamj_baraclough@blockerzetnet.co.uk> a &#4294967295;crit dans le message de 
news: 4bun2nF132te8U1@individual.net...
> BrunoG scrobe on the papyrus:
>
>> "Wolfgang Mahringer" <yeti201@gmx.at> a icrit dans le message de
>>
>> It seems that some browsers do not apply the black background color
>> from the <table bg=#000000> tag correctly, so I removed it, and font
>> tag too.
>>
>> the code is now printed black on a white background, and should be
>> convenient for all users.
>>
>> Thanks ;-)
>>
>> Bruno
>> http://www.micro-examples.com/public/microex-navig/doc/097-pwm-calcula
>> tor.html
>
> I'm using Opera version 8.51 and I still don't see any code only a
> large table of values. Where should I be looking for the code listing?
>
> -- 
> John B

Hi John,

The code is after the table of values.

When no PWM value is entered, all the solutions are displayed, and in this 
case not code is given

I tried with Opera V8.54 and it works fine, try for example with Fosc = 4 
Mhz and Fpwm = 1000 Hz with 50% duty cycle, if your browser shows the table 
you should also see the code.

Thanks,

Bruno
http://www.micro-examples.com/public/microex-navig/doc/097-pwm-calculator.html