Fast PWM Tiny13A ?

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bianchi77
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Location: Perth,Western Australia
#1
Posted by bianchi77: Sun. Jul 12, 2015 - 10:10 AM
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Guys,

 

I've been fiddling with FastPWM on Tiny13A to control a brightness of LED, but I haven't got it yet...

Any setting or missing code here ?

 

TCCR0A|=(1<<WGM00)|(1<<WGM01)|(1<<COM0A1)|(1<<COM0A0);
	 TCCR0B|=(1<<CS00);
	DDRB = 0x3F;
	
	void PWMOut(uint8_t out)
{
	OCR0A=out;
}

void LED_0_brightness()
{
	uint8_t b=0;
	 for(b=0;b<255;b++)
	 {
		 //set brightness with PWM

		 PWMOut(b);

		 
		_delay_ms(1000);
	 }
}

The LED is just ON without fading as I expected....do I miss something here ?

 

Thanks

 

Tags:

AVR Microcontrollers, megaAVR and tinyAVR
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Bronze Marktheusch
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Location: Wisconsin USA
Posted by theusch: Sun. Jul 12, 2015 - 02:58 PM
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Please show the complete test program.  Please tell your AVR's clock speed.  Please tell how you have your LED connected.

 

 

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

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Koshchi
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Location: Vancouver, BC
Posted by Koshchi: Sun. Jul 12, 2015 - 05:11 PM
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Also a schematic might help as well. There is nothing obviously wrong with the code.

Regards,
Steve A.

The Board helps those that help themselves.

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