DT Instant Interrupts

[Darrel Taylor]

Great Testimonial Kurt!

Mind if I use it on my website?
<br>

[krohtech]

Great Testimonial Kurt!

Mind if I use it on my website?
<br>

Darrel,

Feel free to use my testimonial in any way you see fit.

[Darrel Taylor]

Thanks Kurt!

Ioannis,

I've mentioned it a couple times here in the forum, but I just spent about an hour trying to find them, and failed.

I really should write some more pages for the website.

Anyone got a Cloning Machine? I need another Me.

[krohtech]

Hay Darrel,

In the DT_INTS-14 (SPWM_INT - Multiple Software PWM) It says:

DutyVars   VAR BYTE[3]              ; DutyCycle Variables
  DutyVar1 VAR DutyVars[0]          ; group them in an array for easy access
  DutyVar2 VAR DutyVars[1]          ; with FOR loops etc.
  DutyVar3 VAR DutyVars[2]

I do not know how to use arrays or how it can benefit in loops. The way I am doing it now is very cumbersome and code intensive. I have searched the forum and RTFM but I can't get my head around how this concept. Can anyone point me in the correct direction.

[Darrel Taylor]

If you wanted to set all LED's to the same brightness, you could ...

LoopCount  VAR BYTE

FOR LoopCount = 0 to 15         ; 16 channels
    DutyVars(LoopCount) = 50    ; 50% (0-100)
NEXT LoopCount

<br>

[Archangel]

If you wanted to set all LED's to the same brightness, you could ...

LoopCount  VAR BYTE

FOR LoopCount = 0 to 15         ; 16 channels
    DutyVars(LoopCount) = 50    ; 50% (0-100)
NEXT LoopCount

<br>

Hi Darrel,
could you please explain DutyVars(LoopCount) = 50 ; 50% (0-100), I understand the counter loop but do not understand the operation here. Thank You
JS

[krohtech]

Hi Derrel,

Thanks for the code, Unfortunately I was hoping for something that would allow me to set different values to the duty cycle of each channel. The way I have it configured I use CH# as the var name:

DEFINE SPWM_FREQ  100               ; SPWM Frequency
DEFINE SPWM_RES   101               ; SPWM Resolution

DutyVars   VAR BYTE[16]             ; DutyCycle Variables
  CH1 VAR DutyVars[0]          ; group them in an array for easy access
  CH2 VAR DutyVars[1]          ; with FOR loops etc.
  CH3 VAR DutyVars[2]
  CH4 VAR DutyVars[3]
  CH5 VAR DutyVars[4]
  CH6 VAR DutyVars[5]
  CH7 VAR DutyVars[6]
  CH8 VAR DutyVars[7]
  CH9 VAR DutyVars[8]          
  CH10 VAR DutyVars[9]         
  CH11 VAR DutyVars[10]
  CH12 VAR DutyVars[11]
  CH13 VAR DutyVars[12]
  CH14 VAR DutyVars[13]
  CH15 VAR DutyVars[14]
  CH16 VAR DutyVars[15]

and change the duty in this manor:

Main: 
gosub CKINPUT
                             
CH1 = 100
CH2 = 0
CH3 = 0
CH4 = 0
CH5 = 0
CH6 = 0
CH7 = 0
CH8 = 0
CH9 = 0
CH10 = 0
CH11 = 0
CH12 = 0
CH13 = 0
CH14 = 0
CH15 = 0
CH16 = 0
gosub CKINPUT
PAUSE T5
CH1 = 100
CH2 = 100
CH3 = 0
CH4 = 0
CH5 = 0
CH6 = 0
CH7 = 0
CH8 = 0
CH9 = 0
CH10 = 0
CH11 = 0
CH12 = 0
CH13 = 0
CH14 = 0
CH15 = 0
CH16 = 0
gosub CKINPUT
PAUSE T5

and so on... If anyone can suggest a better method I would be very interested in learning better ways to program.

[Archangel]

Hi Darrel,
could you please explain DutyVars(LoopCount) = 50 ; 50% (0-100), I understand the counter loop but do not understand the operation here. Thank You
JS

Anybody ???