daa.c
来自「我编写的软件运行在dsp5000的ccs下」· C语言 代码 · 共 755 行
C
755 行
/*********************************************************************************/
/* daa.c
/*
/* This example demonstrates the use of the telephony interface of the DSK.
/* The DAA and handset codecs are setup and then the application waits for an
/* incoming ringer. On the second ring detected, the line is picked up (off-hook)
/* and a conversation can be carried out between the DAA and handset interfaces.
/* This example also shows how the CALLER-ID enable feature is used if caller-id
/* detection is to be performed.
/*
/*********************************************************************************/
#include <type.h>
#include <board.h>
#include <codec.h>
#include <mcbsp54.h>
#include <daa.h>
#include <math.h>
/*****************************************************************************/
/* Function Prototypes
/*****************************************************************************/
/* This delay routine does not conflict with DSP/BIOS. It is used in this */
/* example rather than brd_delay_msec which causes DSP/BIOS conflicts just */
/* because of this. If you are not using DSP/BIOS, you can change the code */
/* to use brd_delay_msec.
*/
#define SAMPLESIZE 400
#define pi 3.14159265358
void dtmf_gen(float dg_coff_r,float dg_coff_c,u16 *dg_out_num,int dg_num);
char read_key(char chr); //return the key from keyboard
void delay(s16);
void bringup(char dow);
void send();
/*****************************************************************************/
/* Global variables
/*****************************************************************************/
#define CLKMD *(unsigned int *)0x58
#define PMST *(unsigned int *)0x1d
#define SWWSR *(unsigned int *)0x28
#define SWCR *(unsigned int *)0x2b
HANDLE hDevice;
u16 out_sample[SAMPLESIZE];
s16 noise[SAMPLESIZE]={
-28778 ,
-30270 ,
12939 ,
-5976 ,
21377 ,
-23332 ,
23707 ,
26641 ,
-4758 ,
-11958 ,
-25122 ,
29293 ,
7941 ,
-22570 ,
-7976 ,
1827 ,
31449 ,
-13736 ,
-2192 ,
-32348 ,
28941 ,
-27180 ,
-13838 ,
-7478 ,
20117 ,
2319 ,
25735 ,
10921 ,
-22810 ,
-18530 ,
-25818 ,
-9494 ,
8251 ,
8595 ,
31763 ,
14753 ,
6721 ,
18303 ,
18645 ,
27815 ,
10067 ,
-11498 ,
11693 ,
1395 ,
-12236 ,
-21430 ,
28557 ,
5487 ,
-26038 ,
21205 ,
18579 ,
25299 ,
-14264 ,
-11170 ,
11007 ,
-10758 ,
-12938 ,
-18676 ,
-23892 ,
-18626 ,
-5280 ,
-20322 ,
-29432 ,
-10936 ,
-3564 ,
-32250 ,
-8310 ,
11253 ,
-25902 ,
-12422 ,
-19282 ,
9119 ,
30027 ,
19731 ,
-10394 ,
257 ,
-8364 ,
6117 ,
-31462 ,
-25206 ,
-218 ,
-27764 ,
-25060 ,
55 ,
14349 ,
-23464 ,
-864 ,
-4380 ,
4513 ,
-25134 ,
10807 ,
4147 ,
2435 ,
-16930 ,
11197 ,
-18996 ,
18323 ,
-29618 ,
-25630 ,
-6318 ,
-21338 ,
-2304 ,
-13292 ,
-14938 ,
13251 ,
-32144 ,
9211 ,
-8506 ,
7637 ,
26325 ,
30577 ,
-30172 ,
-8222 ,
-3662 ,
-29956 ,
-6786 ,
19405 ,
1017 ,
32455 ,
-30150 ,
-5246 ,
1173 ,
22547 ,
-27850 ,
1723 ,
8079 ,
24883 ,
2855 ,
19237 ,
10653 ,
-26614 ,
23407 ,
-28882 ,
67 ,
-7432 ,
-11406 ,
-22740 ,
-16800 ,
17499 ,
-8076 ,
-15072 ,
-25266 ,
-15230 ,
3565 ,
23273 ,
-9612 ,
18983 ,
26203 ,
-2314 ,
31083 ,
6501 ,
19625 ,
5007 ,
14973 ,
12595 ,
26107 ,
20601 ,
-25124 ,
16219 ,
-21496 ,
3901 ,
19233 ,
25329 ,
16375 ,
-5674 ,
-19088 ,
30025 ,
5553 ,
-1034 ,
21521 ,
4471 ,
4029 ,
30381 ,
18301 ,
4669 ,
-23662 ,
30381 ,
-15612 ,
-16762 ,
-24966 ,
-27396 ,
4831 ,
23655 ,
8931 ,
10803 ,
-26944 ,
25223 ,
30255 ,
-17362 ,
-30472 ,
37 ,
-18658 ,
-29112 ,
-5624 ,
13191 ,
5275 ,
-13292 ,
26809 ,
9977 ,
-25328 ,
18067 ,
-24910 ,
3135 ,
15947 ,
15337 ,
31125 ,
11921 ,
3527 ,
8605 ,
10387 ,
29455 ,
29071 ,
-5812 ,
26247 ,
-66 ,
16789 ,
-18464 ,
30861 ,
16639 ,
31109 ,
-30902 ,
-18156 ,
1407 ,
-27876 ,
-21832 ,
1927 ,
-5956 ,
8461 ,
-21166 ,
-2996 ,
-15372 ,
-15806 ,
-31892 ,
373 ,
23971 ,
1489 ,
-31168 ,
-12350 ,
3951 ,
22329 ,
12843 ,
-28596 ,
-25938 ,
-29882 ,
8023 ,
-28014 ,
-7332 ,
9587 ,
11527 ,
18193 ,
-13944 ,
-4696 ,
22333 ,
-29088 ,
-9894 ,
-4432 ,
12031 ,
-21304 ,
2435 ,
29945 ,
27909 ,
-17830 ,
16433 ,
9721 ,
-26888 ,
-6266 ,
-10608 ,
-14336 ,
12073 ,
28215 ,
-11580 ,
-11624 ,
26307 ,
-30876 ,
4181 ,
24405 ,
-13684 ,
15665 ,
3887 ,
-27864 ,
-7660 ,
29055 ,
-24296 ,
6223 ,
14711 ,
-3830 ,
11689 ,
-16248 ,
-12920 ,
-5376 ,
-15162 ,
-6128 ,
21145 ,
-23276 ,
-18536 ,
-20258 ,
19877 ,
-15332 ,
-4102 ,
-20858 ,
30737 ,
291 ,
-16762 ,
6807 ,
26075 ,
-23800 ,
22261 ,
10597 ,
-6566 ,
-27504 ,
-19672 ,
-26774 ,
6011 ,
28423 ,
5275 ,
1827 ,
-23708 ,
20805 ,
-9128 ,
18265 ,
8391 ,
-9378 ,
-3716 ,
6661 ,
3457 ,
9899 ,
28189 ,
-27738 ,
23523 ,
4707 ,
-13614 ,
-21738 ,
2661 ,
-17226 ,
16545 ,
4579 ,
-16932 ,
-32664 ,
-26246 ,
-4824 ,
-10700 ,
20199 ,
10039 ,
-31002 ,
-2646 ,
-16682 ,
6401 ,
-28712 ,
29309 ,
-22722 ,
-6310 ,
2511 ,
-21718 ,
-24816 ,
3729 ,
29319 ,
-19158 ,
14667 ,
-12368 ,
18177 ,
24097 ,
21897 ,
12291 ,
30559 ,
-2152 ,
23841 ,
-4348 ,
-7378 ,
-6852 ,
-15176 ,
-21800 ,
30291 ,
25995 ,
-21924 ,
-5302 ,
-436 ,
-29422 ,
-6114 ,
19259 ,
20509 ,
-5080 ,
29477 ,
30877 ,
-10598 ,
-10464 ,
24391 ,
17141 ,
8515 ,
-14074 ,
24357 ,
28737 ,
-29794 ,
-10034 ,
6337 ,
-28544 ,
-27380 ,
-18150 ,
9875 ,
-30814 ,
295
};
/*****************************************************************************/
/* MAIN
/*****************************************************************************/
void main()
{
s16 cnt;
u16 data;
u16 silent_count;
u16 count=0;
u16 i;
if (brd_init(100))
return;
CLKMD=0x0000;
while(CLKMD&0x01);
CLKMD=0x0f003;
PMST=0x6830;
SWWSR=0x7000;
SWCR=0x01;
cnt = 2;
/* blink the leds a couple times */
while ( cnt-- )
{
brd_led_toggle(0);
/* brd_delay_msec(1000); */
delay(1000);
brd_led_toggle(1);
/* brd_delay_msec(1000); */
delay(1000);
brd_led_toggle(2);
/* brd_delay_msec(1000); */
delay(1000);
}
/* Set-up DAA codec */
hDevice = codec_open(DAA_CODEC);
codec_dac_mode(hDevice, CODEC_DAC_15BIT); /* DAC in 15-bit mode */
codec_adc_mode(hDevice, CODEC_ADC_15BIT);
codec_ain_gain(hDevice, CODEC_AIN_6dB); /* 6dB gain on analog input to ADC */
codec_aout_gain(hDevice, CODEC_AOUT_MINUS_6dB);
codec_sample_rate(hDevice,SR_8000);
/* Set-up HANDSET codec */
hDevice = codec_open(HANDSET_CODEC);
codec_dac_mode(hDevice, CODEC_DAC_15BIT);
codec_adc_mode(hDevice, CODEC_ADC_15BIT);
codec_ain_gain(hDevice, CODEC_AIN_6dB); /* 6dB gain on analog input to ADC */
codec_aout_gain(hDevice, CODEC_AOUT_MINUS_6dB);
codec_sample_rate(hDevice,SR_8000);
/* intializize DAA to default setting (off-hook, no caller ID) */
daa_init();
/* wait for incoming ringer
start:
brd_led_disable(0);
brd_led_disable(1);
brd_led_disable(2);
/* wait for initial ring
silent_count = 0;
while (!daa_ring_detect())
{
brd_delay_msec(5);
silent_count++;
/* toggle LED 10x a second
if (silent_count == 20)
{
brd_led_toggle(0);
silent_count = 0;
}
}
/* enable caller ID path
brd_led_disable(0);
brd_led_enable(1);
daa_cid(DAA_CID_ENABLE);
/* wait for 1st ring to end
silent_count = 0;
do
{
brd_delay_msec(5);
if (!daa_ring_detect())
silent_count++;
else silent_count = 0;
} while (silent_count < 600);
/* disable caller ID path
daa_cid(DAA_CID_DISABLE);
brd_led_disable(1);
brd_led_enable(2);
/* wait for 2nd ring
silent_count = 0;
do
{
brd_delay_msec(5);
if (!daa_ring_detect())
silent_count++;
else break;
} while (silent_count < 1200);
/* check if phone was hung up before 2nd ring and restart
if (silent_count >= 1200) goto start;
brd_led_disable(2);
/* go off-hook */
daa_offhook();
delay(1000);
delay(1000);
delay(1000);
/* enable all LEDs */
brd_led_enable(0);
brd_led_enable(1);
brd_led_enable(2);
//dial out
bringup('8');
send();
bringup('7');
send();
bringup('1');
send();
bringup('5');
send();
bringup('3');
send();
//以下是通话状态
while (1)
{
/* Check for sample from DAA */
for(i=0;i<SAMPLESIZE;i++)
{
if (MCBSP_RRDY(DAA_CODEC))
{
/* Read DAA sample and write to handset codec */
data = *(volatile u16*)DRR1_ADDR(DAA_CODEC);
if(data<300)
*(volatile u16*)DXR1_ADDR(HANDSET_CODEC) = noise[i]/500;
else
*(volatile u16*)DXR1_ADDR(HANDSET_CODEC) = data;
//*(volatile u16*)DXR1_ADDR(HANDSET_CODEC) = noise[i]/800;
}
//daa上有数据，则把数据放到data,再把data放到喇叭里。
/* Check for sample from handset */
if (MCBSP_RRDY(HANDSET_CODEC))
{
/* Read hadset codec sample and write to DAA */
data = *(volatile u16*)DRR1_ADDR(HANDSET_CODEC);
if(data<300)
*(volatile u16*)DXR1_ADDR(DAA_CODEC) = noise[i]/500;
else
*(volatile u16*)DXR1_ADDR(DAA_CODEC)=data;
//*(volatile u16*)DXR1_ADDR(DAA_CODEC) =noise[i]/800;
//if (!daa_ring_detect())
//break;
}
}
//如果ad50接收串口准备好，把数据发送到麦克。
}
return;
}
void delay(s16 period)
{
int i, j;
for(i=0; i<period; i++)
{
for(j=0; j<period>>1; j++);
}
}
void dtmf_gen(float dg_coff_r,float dg_coff_c,u16* dg_out_num,int dg_num)
{
int dg_i;
for(dg_i=0;dg_i<dg_num;dg_i++)
dg_out_num[dg_i]=(u16)(16384*(2+sin(dg_coff_r*dg_i)+sin(dg_coff_c*dg_i)));
}//dtmf_gen
char read_key(char chr) //return the key from keyboard
{
return chr;
}//read_key
void bringup(char dow)
{
char key;
//while(1) //scan the keyboard all the time , do nothing
key=read_key(dow); //read_key
//delay(50); //delay 50ms, eliminate dithering
if(key==read_key(dow))
{
switch (key)
{
case '0': {
dtmf_gen(2*pi*941/8000,2*pi*1336/8000,out_sample,SAMPLESIZE);
break;
}
case '1': {
dtmf_gen(2*pi*697/8000,2*pi*1209/8000,out_sample,SAMPLESIZE);
break;
}
case '2': {
dtmf_gen(2*pi*697/8000,2*pi*1336/8000,out_sample,SAMPLESIZE);
break;
}
case '3': {
dtmf_gen(2*pi*697/8000,2*pi*1477/8000,out_sample,SAMPLESIZE);
break;
}
case '4': {
dtmf_gen(2*pi*770/8000,2*pi*1209/8000,out_sample,SAMPLESIZE);
break;
}
case '5': {
dtmf_gen(2*pi*770/8000,2*pi*1336/8000,out_sample,SAMPLESIZE);
break;
}
case '6': {
dtmf_gen(2*pi*770/8000,2*pi*1477/8000,out_sample,SAMPLESIZE);
break;
}
case '7': {
dtmf_gen(2*pi*852/8000,2*pi*1209/8000,out_sample,SAMPLESIZE);
break;
}
case '8': {
dtmf_gen(2*pi*852/8000,2*pi*1336/8000,out_sample,SAMPLESIZE);
break;
}
case '9': {
dtmf_gen(2*pi*852/8000,2*pi*1477/8000,out_sample,SAMPLESIZE);
break;
}
case '*': {
dtmf_gen(2*pi/8000*941,2*pi/8000*1209,out_sample,SAMPLESIZE);
break;
}
case '#': {
dtmf_gen(2*pi/8000*941,2*pi/8000*1477,out_sample,SAMPLESIZE);
break;
}
case 'A': {
dtmf_gen(2*pi/8000*697,2*pi/8000*1633,out_sample,SAMPLESIZE);
break;
}
case 'B': {
dtmf_gen(2*pi/8000*770,2*pi/8000*1633,out_sample,SAMPLESIZE);
break;
}
case 'C': {
dtmf_gen(2*pi/8000*852,2*pi/8000*1633,out_sample,SAMPLESIZE);
break;
}
case 'D': {
dtmf_gen(2*pi/8000*941,2*pi/8000*1633,out_sample,SAMPLESIZE);
break;
}
default : {
break;
}
}
}
}
void send()
{
u16 i;
u16 data;
for(i=0;i<SAMPLESIZE;i++)
{ //*(volatile u16*)DXR1_ADDR(HANDSET_CODEC) = out_sample[i];
while (!MCBSP_RRDY(HANDSET_CODEC)) {};
data = *(volatile u16*)DRR1_ADDR(HANDSET_CODEC);
*(volatile u16*)DXR1_ADDR(DAA_CODEC) = (u16)(out_sample[i]/2);//是否需要查询一下？
}
delay(1000);
//delay(1000);
//delay(1000);
//delay(1000);
//delay(1000);
/* for(i=0;i<1000000;i++)
{
*(volatile u16*)DXR1_ADDR(HANDSET_CODEC) =i;
}*/
}
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