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Subversion Repositories hf-risc

[/] [hf-risc/] [trunk/] [software/] [app/] [buzzer2.c] - Blame information for rev 13

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Line No.	Rev	Author	Line
1	13	serginhofr	`/*`
2			`C0 = 16.35`
3			`C#0 = 17.32`
4			`DO = 18.35`
5			`D#O = 19.45`
6			`EO = 20.60`
7			`F0 = 21.83`
8			`F#0 = 23.12`
9			`G0 = 24.50`
10			`G#O = 25.96`
11			`A0 = 27.50`
12			`A#0 = 29.14`
13			`BO = 30.87`
14
15			`C1 = 32.70`
16			`C#1 = 34.65`
17			`D1 = 36.71`
18			`D#1 = 38.89`
19			`E1 = 41.20`
20			`F1 = 43.65`
21			`F#1 = 46.25`
22			`G1 = 49.00`
23			`G#1 = 51.91`
24			`A1 = 55.00`
25			`A#1 = 58.27`
26			`B1 = 61.74`
27
28			`C2 = 65.41`
29			`C#2 = 69.30`
30			`D2 = 73.42`
31			`D#2 = 77.78`
32			`E2 = 82.41`
33			`F2 = 87.31`
34			`F#2 = 92.50`
35			`G2 = 98.00`
36			`G#2 = 103.83`
37			`A2 = 110.00`
38			`A#2 = 116.54`
39			`B2 = 123.47`
40
41			`C3 = 130.81`
42			`C#3 = 138.59`
43			`D3 = 146.83`
44			`D#3 = 155.56`
45			`E3 = 164.81`
46			`F3 = 174.61`
47			`F#3 = 185.00`
48			`G3 = 196.00`
49			`G#3 = 207.65`
50			`A3 = 220.00`
51			`A#3 = 233.08`
52			`B3 = 246.94`
53
54			`C4 = 261.63`
55			`C#4 = 277.18`
56			`D4 = 293.66`
57			`D#4 = 311.13`
58			`E4 = 329.63`
59			`F4 = 349.23`
60			`F#4 = 369.99`
61			`G4 = 392.00`
62			`G#4 = 415.30`
63			`A4 = 440.00`
64			`A#4 = 466.16`
65			`B4 = 493.88`
66
67			`C5 = 523.25`
68			`C#5 = 554.37`
69			`D5 = 587.33`
70			`D#5 = 622.25`
71			`E5 = 659.26`
72			`F5 = 698.46`
73			`F#5 = 739.99`
74			`G5 = 783.99`
75			`G#5 = 830.61`
76			`A5 = 880.00`
77			`A#5 = 932.33`
78			`B5 = 987.77`
79
80			`C6 = 1046.50`
81			`C#6 = 1108.73`
82			`D6 = 1174.66`
83			`D#6 = 1244.51`
84			`E6 = 1318.51`
85			`F6 = 1396.91`
86			`F#6 = 1479.98`
87			`G6 = 1567.98`
88			`G#6 = 1661.22`
89			`A6 = 1760.00`
90			`A#6 = 1864.66`
91			`B6 = 1975.53`
92
93			`C7 = 2093.00`
94			`C#7 = 2217.46`
95			`D7 = 2349.32`
96			`D#7 = 2489.02`
97			`E7 = 2637.02`
98			`F7 = 2793.83`
99			`F#7 = 2959.96`
100			`G7 = 3135.96`
101			`G#7 = 3322.44`
102			`A7 = 3520.00`
103			`A#7 = 3729.31`
104			`B7 = 3951.07`
105			`*/`
106
107			`#include <hf-risc.h>`
108
109			`#define BUZZER_PIN 0x08`
110
111			`void play(uint32_t freq, uint32_t duration){`
112			`uint32_t us_wave, dly, i;`
113
114			`us_wave = 1000000 / freq;`
115			`dly = COUNTER + (CPU_SPEED / 1000) * duration;`
116
117			`while(COUNTER < dly){`
118			`EXTIO_OUT = BUZZER_PIN;`
119			`delay_us(us_wave);`
120			`EXTIO_OUT = 0;`
121			`delay_us(us_wave);`
122			`}`
123			`}`
124
125			`int main(void){`
126			`for(;;){`
127			`// play a chromatic scale from C4 to B4`
128			`play(262, 250);`
129			`play(277, 250);`
130			`play(294, 250);`
131			`play(311, 250);`
132			`play(330, 250);`
133			`play(349, 250);`
134			`play(370, 250);`
135			`play(392, 250);`
136			`play(415, 250);`
137			`play(440, 250);`
138			`play(466, 250);`
139			`play(494, 250);`
140
141			`delay_ms(1000);`
142			`}`
143			`}`

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[/] [hf-risc/] [trunk/] [software/] [app/] [buzzer2.c] - Blame information for rev 13