Darrel's SPWM and LCDOUT

[Wirecut]

Hi to all.

I never stop to thaks Darrel for he very useful SPWM.

Using it, I have found the necessity to stop and then later start or restart restart the SPWM having the same value for each SPWM channel.

During the stop period all the channels/pin should be set high or low a desidered.

Could you please suggest the best way to stop and start the SPWM.

Ciao

Leo

[mister_e]

I think you just need to start/stop Timer1

TMR1ON=0    ' Stop Timer1
TMR1ON=1    ' Start Timer1

OR, you disable/enable the TMR1 interrupt

@   INT_DISABLE TMR1_INT 
@   INT_ENABLE  TMR1_INT

and then, you set your pin the way you want.

[Acetronics2]

Hi,

Having a look to the listing ...

line 2 : CLEAR ' Clear all variables to 0LED


... OLEDS are far slower than classical LCDs ...

I think we already had this discussion on the Forum ...


Cool ... this is not an OLED Display !!! .........LoL !


May be DEFINE LCD_DATAUS could be a little bit raised ( 44 > 50 i.e. )

Alain

[Darrel Taylor]

I never stop to thaks Darrel for he very useful SPWM.

You are very Welcome Leo. Glad you could use it.

Using it, I have found the necessity to stop and then later start or restart restart the SPWM having the same value for each SPWM channel.

During the stop period all the channels/pin should be set high or low a desidered.

Could you please suggest the best way to stop and start the SPWM.

Well,
Just stopping the Timer or Disabling the interrupt will leave everything in mid-cycle.
Then turning the Timer back on later will cause all channels to finish the cycle it was in the middle of, and continue with the dutycycle last assigned.

I think the best way is to set all the DutyCycles to either 0 or the Max Res +1. Which will give an orderly "Stop" at the end of the Cycle.

If the DutyCycle variables are grouped in an array like shown in my original examples, then you can just do a FOR loop, to assign them all to the same value.

For i = 0 to 4
    DutyVars[i] = 0
Next i

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[Wirecut]

Hi Darrel,

many thanks for your suggestion.

I will try to implement both solution either 0 or the Max Res +1.

Ciao

Leo