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یه کد داشتم که می خواستم یکی برام تحلیلش کنه که بدونم این چطوریه. این کد:
اینم فایل sin.h :
یه درخواست هم دارم. این کد واسه کامپایلر کدویژن نوشته نشده. همین کد توی کد ویژن چطوری میشه؟
یه کد داشتم که می خواستم یکی برام تحلیلش کنه که بدونم این چطوریه. این کد:
کد:
/********************************************************************
DESCRIPTION: A Simple program to genarate some random
musical tone.
MCU: Atmel AVR ATmega32
CPU SPEED: 16Mhz
LOW FUSE: 0XFF
HIGH FUSE: 0XC9
NOTE: Connect a 8ohm speaker between GND and PB3.
AUTHOR: Avinash Gupta
DATE: Mar 18, 2010
WEB: www.eXtremeElectronics.co.in
*** THIS PROJECT IS PROVIDED FOR EDUCATION/HOBBY USE ONLY ***
*** NO PROTION OF THIS WORK CAN BE USED IN COMMERIAL ***
*** APPLICATION WITHOUT WRITTEN PERMISSION FROM THE AUTHOR ***
EVERYONE IS FREE TO POST/PUBLISH THIS ARTICLE IN
PRINTED OR ELECTRONIC FORM IN FREE/PAID WEBSITES/MAGAZINES/BOOKS
IF PROPER CREDIT TO ORIGINAL AUTHOR IS MENTIONED WITH LINKS TO
ORIGINAL ARTICLE
COPYRIGHT (C) 2008-2010 EXTREME ELECTRONICS INDIA.
*********************************************************************/
#include <avr/io.h>
#include <util/delay.h>
#include <avr/pgmspace.h>
#include "sin.h"
/*
Function To Initialize TIMER0 In Fast
PWWM Mode.
*/
void InitPWM()
{
/*
TCCR0 - Timer Counter Control Register (TIMER0)
-----------------------------------------------
BITS DESCRIPTION
NO: NAME DESCRIPTION
--------------------------
BIT 7 : FOC0 Force Output Compare [Not used in this example]
BIT 6 : WGM00 Wave form generartion mode [SET to 1]
BIT 5 : COM01 Compare Output Mode [SET to 1]
BIT 4 : COM00 Compare Output Mode [SET to 0]
BIT 3 : WGM01 Wave form generartion mode [SET to 1]
BIT 2 : CS02 Clock Select [SET to 0]
BIT 1 : CS01 Clock Select [SET to 0]
BIT 0 : CS00 Clock Select [SET to 1]
The above settings are for
--------------------------
Timer Clock = CPU Clock (No Prescalling)
Mode = Fast PWM
PWM Output = Non Inverted
*/
TCCR0|=(1<<WGM00)|(1<<WGM01)|(1<<COM01)|(1<<CS00);
//Set OC0 PIN as output. It is PB3 on ATmega16 ATmega32
DDRB|=(1<<PB3);
}
void main()
{
uint8_t i;
InitPWM();
while(1)
{
uint8_t delay,n;
for(delay=1;delay<=50;delay++)
{
for(n=0;n<(51-delay);n++)
{
for(i=0;i<=254;i++)
{
OCR0=pgm_read_byte_near(sine+i);
_delay_loop_2(delay);
}
}
}
for(delay=50;delay>=2;delay--)
{
for(n=0;n<(51-delay);n++)
{
for(i=0;i<=254;i++)
{
OCR0=pgm_read_byte_near(sine+i);
_delay_loop_2(delay);
}
}
}
}
}
اینم فایل sin.h :
کد:
#include <avr/pgmspace.h>
prog_uint8_t sine[256]={
127,
130,
133,
136,
139,
143,
146,
149,
152,
155,
158,
161,
164,
167,
170,
173,
176,
178,
181,
184,
187,
189,
192,
195,
197,
200,
203,
205,
207,
210,
212,
214,
217,
219,
221,
223,
225,
227,
229,
231,
232,
234,
236,
237,
239,
240,
242,
243,
244,
245,
246,
248,
248,
249,
250,
251,
251,
252,
253,
253,
253,
254,
254,
254,
254,
254,
254,
254,
253,
253,
253,
252,
252,
251,
250,
250,
249,
248,
247,
246,
245,
243,
242,
241,
239,
238,
236,
235,
233,
231,
229,
227,
225,
224,
221,
219,
217,
215,
213,
210,
208,
206,
203,
201,
198,
195,
193,
190,
187,
185,
182,
179,
176,
173,
170,
167,
164,
161,
158,
155,
152,
149,
146,
143,
140,
137,
134,
131,
128,
125,
121,
118,
115,
112,
109,
106,
103,
100,
97,
94,
91,
88,
85,
82,
79,
76,
73,
71,
68,
65,
62,
60,
57,
55,
52,
50,
47,
45,
42,
40,
38,
36,
34,
31,
29,
27,
26,
24,
22,
20,
19,
17,
15,
14,
13,
11,
10,
9,
8,
7,
6,
5,
4,
3,
3,
2,
2,
1,
1,
0,
0,
0,
0,
0,
0,
0,
1,
1,
1,
2,
2,
3,
4,
4,
5,
6,
7,
8,
9,
10,
12,
13,
14,
16,
17,
19,
21,
22,
24,
26,
28,
30,
32,
34,
36,
39,
41,
43,
45,
48,
50,
53,
55,
58,
61,
63,
66,
69,
72,
74,
77,
80,
83,
86,
89,
92,
95,
98,
101,
104,
107,
110,
113,
116,
119,
122,
};
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