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What a clever idea - I hadn't thought of that.
I have now binned timer0 and controlled the strobes from inside timer1.

It's simple and works brilliantly!

Thank you so much for your suggestion. ...

Hi PCM Programmer
Thank you for your sample code. As expected, it works fine.
In order to get the double flash, followed by a long pause, I have modified the code as follows:

#INT_TIMER0
void t0 ...

Hi all,
Now back at home, I have been playing with the 1840 to drive the servo and, hey, it works perfectly!

Now to the next problem:
The 1840 must also flash a pair of leds as an aircraft strobe ...

Hi Ttelmah

I have now reworked your example to use timer1 for the CCP and timer2 for the off time and using 400Hz. It is a miniature digital servo I am using, mainly because I can program its speed ...

Hi both

I did not know about the 400 Hz mode - my googling always talked about the 20ms gap. I have looked at your example. I would need to use timer1 as the 1840 doesn't have a timer3 and, as you ...

Hi all
Having figured out how to get 20ms out of timer2 for the space, I have been trying to understand how to use CCP1 to get my 830 or 1500 us mark pulse. The datasheet says "Compare mode make ...

Hi Thanks for the reply. So, using the figures I gave, I can get my 19ms delay, using a post scale value and tyimer2 overflow interrupt function?

I can then use CCP1/timer1 to give me the 832 or 15 ...

Hi all
A question on timer2. As the datasheet states, timer2 is fed by a prescaler, fed by Fosc/4. So for example, if I set the RC osc to 16MHz, then Fosc/4 = 4MHz or 1 pulse every o.25us. If I set t ...

Hi Temtronic
That's a good idea.
I understand (I think) that if timer1 is set to zeroand the CCP1 o/p pin is set high, and timer1 is enabled, it will count up and when its value = the CCP1 set value ...

Hi Ttelmah
Thank you for your reply.
Am I on the right lines here?

12F1840, internal osc at 16MHz:

#FUSES INTRC_IO
#use delay(internal=16M)

setup_timer1(T1_INTERNAL | T1_DIV_BY_1);

I on ...

Hi, Thanks for the replies. All I want to do is control ONE servo, using a 12F1840. The PIC also needs to flash some LEDs, but that's all.

The PIC has 2 CCP channels, so can I generate the pulses t ...

Hi
I want to control an r/c servo, using a 12F1840. I have looked at various code but none seems to fit the 1840 timers. Can anyone help me please?

Thanks

Brian

Hi Ttelmah

Thanks again for your help - I shall go and study your code.

Brian

Hi,
I want to control a model r/c servo from the 1840. I need to be able to select either 830 us or 1500us pulse width.

I have looked at lots of posts on PWM, but am still not seeing the wood for ...

I don't know how this happened. It was not intentional.

End of story.