Atmega1284 and PWM

maxneo · Joined: 07 Sep 2010 Posts: 35

I have a problem with Atmega1284 it would not compile when I use Timer3 to PWM. See the code below.

$regfile = "m1284pdef.dat"
$crystal = 8000000
$hwstack = 32
$swstack = 16
$framesize = 40

Config Clockdiv = 1

line 40 Config Timer3 = Pwm , Pwm = 10 , Compare A Pwm = Clear Down , Compare B Pwm = Clear Down , Compare C Pwm = Clear Down , Prescale = 8
chan1 Alias Pwm3a 'PORTE.3
chan2 Alias Pwm3b 'PORTE.4
chan3 Alias Pwm3c 'PORTE.5

When I compile, I get this message
Error : 12 Line : 40 Unknown CONFIG parameter [PIN] , in File : C:\Program Files (x86)\MCS Electronics\BASCOM-AVR\SAMPLES\TestPWM.bas

What am I doing wrong
Sincerely Janne

(BASCOM-AVR version : 2.0.7.8 )

i.dobson · Posted: Tue Jan 27, 2015 11:23 am Post subject:

Hi,

Are you sure that timer 3 has 3 pwm Outputs?

This works:

albertsm · Joined: 09 Apr 2004 Posts: 4966 Location: Holland

all timers have just 2 outputs.

maxneo · Joined: 07 Sep 2010 Posts: 35

Thanks on much I got for me that there were 3 pc timer in Atmega1284 thank you got me on the right ulcers.
grateful Janne

Tubeampman · Joined: 27 Feb 2006 Posts: 95 Location: Bodo

Hi

This helped me to use timer3.

http://www.mcselec.com/index2.php?option=com_forum&Itemid=59&page=viewtopic&t=12180&highlight=

Øyvind