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Simplest Freq/Duty generator an measure

 
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EDC

Bascom Expert



Joined: 26 Mar 2014
Posts: 971

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PostPosted: Wed May 22, 2019 2:52 pm    Post subject: Simplest Freq/Duty generator an measure Reply with quote
I really don know why I dont post this simplest method for generate desired square wave.
I was think that this is already shared so maybe Im belated...

This two codes and schematics enable to generate square wave you want by entering it with keypad..and second code is "complementary" Very Happy It measure but only in designed spectrum.
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albertsm

Administrator



Joined: 09 Apr 2004
Posts: 5920
Location: Holland
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PostPosted: Wed May 22, 2019 8:22 pm    Post subject: Reply with quote
Thanks for sharing Very Happy
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Arek2014

Bascom Member



Joined: 30 Dec 2014
Posts: 22
Location: Kielce
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PostPosted: Wed Sep 25, 2019 8:56 pm    Post subject: Reply with quote
Simple generator Smile

Code:
$crystal = 8000000
Config Timer1 = Timer , Prescale = 1 ,clear timer = 1, Compare_a = Toggle    'generator frequency!!! OC1A
'Ocr1a = 500
dim freq as word
dim f as dword
Enable Interrupts
enable timer1

do
f = 4000000 / freq  'f crystal / 2 !!!
print f ; "Hz"
Ocr1a = freq    'changing dim freq --> change frequency
loop
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Pzx

Bascom Member



Joined: 05 May 2015
Posts: 39

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PostPosted: Wed Sep 09, 2020 3:04 pm    Post subject: Reply with quote
Arek, thanks for your simple generatr code.
What about Timer2?
OCR2A doesnt work.
Can you do the same with Timer2?
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