blob: 11d9b019e1056815c2b93ee1eb145a34e585629d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
// Copyright (C) 2017 - IIT Bombay - FOSSEE
//
// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution. The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
// Organization: FOSSEE, IIT Bombay
// Email: toolbox@scilab.in
function AVRPWM2Setup(waveform_mode,output_mode)
//Function to Setup OC2 pin for required PWM mode
//
//Parameters
// waveform_mode: integer, from 0 to 2
// output_mode: integer, from 0 to 1 (or 2) depending on the waveform_mode
//
//Description
// Every Micro controller has PWM pins which can generate varying voltages
// from 0V-5V.This function helps to use OC2 pin to produces required
// output waveform by setting the waveform mode and otput mode.
//
// waveform_mode can take values-
// <itemizedlist>
// <listitem><para>0 -> for Phase correct PWM Mode</para></listitem>
// <listitem><para>1 -> for Fast PWM Mode</para></listitem>
// <listitem><para>2 -> for CTC Mode</para></listitem>
// </itemizedlist>
//
// output_mode can take values-
// <itemizedlist>
// For Phase correct PWM Mode:
// <listitem><para>0 for Clear OC2 on compare match when up-counting. Set OC2 on compare match when down-counting.</para></listitem>
// <listitem><para>1 for Set OC2 on compare match when up-counting. Clear OC2 on compare match when down-counting.</para></listitem>
// For Fast PWM Mode:
// <listitem><para>0 for non-inverted output i.e Clear OC2 on compare match, set OC2 at BOTTOM.</para></listitem>
// <listitem><para>1 for inverted output i.e Set OC2 on compare match, clear OC2 at BOTTOM.</para></listitem>
// For CTC Mode:
// <listitem><para>0 to Clear OC2 on compare match</para></listitem>
// <listitem><para>1 to Set OC2 on compare match</para></listitem>
// <listitem><para>2 to toggle OC2 on compare match</para></listitem>
// </itemizedlist>
//
// This is curretly dummy function. It provides no functionality but is required
// for providing support for generating C code for AVR.
//
//Example
// AVRPWM2Setup(2,0); //This function will select CTC waveform mode and will clear OC2 on
// compare match
//See also
// AVRPWM2SetDuty
//
//Authors
// Ashish Kamble
//
if(waveform_mode>=3) then
disp("Error : Invalid input argument ''waveform_mode'' in AVRPWM2Setup function.");
end
if((waveform_mode==0)|(waveform_mode==1)) then
{
//if((type(output_mode)~=8)|(output_mode>=2)) then
//disp("Error : Invalid input argument ''output_mode'' in AVRPWM2Setup function.");
//end
}
end
if(waveform_mode==2) then
{
if((type(output_mode)~=8)|(output_mode>=3)) then
disp("Error : Invalid input argument ''output_mode'' in AVRPWM2Setup function.");
end
}
end
endfunction
|
