int main ()
{
//! [Interesting]
// Instantiate a Speaker (PWM) on digital pin D3
speaker_context speaker = speaker_init_pwm(26);
if (!speaker)
{
printf("speaker_init() failed\n");
return 1;
}
// emit a series of frequencies for 500ms each
speaker_emit(speaker, 50, 500);
speaker_emit(speaker, 75, 500);
speaker_emit(speaker, 125, 500);
speaker_emit(speaker, 250, 500);
speaker_emit(speaker, 500, 500);
speaker_emit(speaker, 1000, 500);
speaker_emit(speaker, 2000, 500);
speaker_emit(speaker, 3000, 500);
speaker_emit(speaker, 5000, 500);
speaker_emit(speaker, 10000, 500);
printf("Exiting\n");
speaker_close(speaker);
//! [Interesting]
return 0;
}
/**
* @brief:farSignalProcess
*
* @note:
*/
void farSignalProcess(void)
{
gl_leftNumOrig = findLeftBlackNum();
gl_rightNumOrig = findRightBlackNum();
/* gl_leftValueOrig and gl_rightValueOrig are only for SD print. */
gl_leftValueOrig = getLeftValue(gl_leftNumOrig);
gl_rightValueOrig = getRightValue(gl_rightNumOrig);
// if(ReadSwitch(0X40))
// {
// //judgeStartline();
// }
/* judge if it is crossline, set gl_crossline, otherwise clear gl_crossline. */
judgeCrossline();
if(!gl_crossline)
{
farSignalFilter();
}
else
{
gl_leftBlackNum = -1;
gl_rightBlackNum = -1;
}
// farSignalFilter();
s_leftBlackNumLast = gl_leftBlackNum;
s_rightBlackNumLast = gl_rightBlackNum;
/* gl_leftValue and gl_rightValue are only for SD print. */
gl_leftValue = getLeftValue(gl_leftBlackNum);
gl_rightValue = getRightValue(gl_rightBlackNum);
gl_outType = judgeOutType();
getHistorySignal();
if(gl_crossline)
{
speaker_open(SPEAKER0);
//BUZZER_ON();
}
else
{
speaker_close(SPEAKER0);
//BUZZER_OFF();
}
}
// initialization in PWM mode
speaker_context speaker_init_pwm(int pin)
{
speaker_context dev = NULL;
if (!(dev = _common_init()))
return NULL;
dev->is_pwm = true;
if (!(dev->pwm = mraa_pwm_init(pin)))
{
printf("%s: mraa_pwm_init() failed.\n", __FUNCTION__);
speaker_close(dev);
return NULL;
}
// set the default frequency to 1Khz
dev->default_freq = 1000;
return dev;
}
// initialization in GPIO mode
speaker_context speaker_init(int pin)
{
speaker_context dev = NULL;
if (!(dev = _common_init()))
return NULL;
dev->is_pwm = false;
if (!(dev->gpio = mraa_gpio_init(pin)))
{
printf("%s: mraa_gpio_init() failed.\n", __FUNCTION__);
speaker_close(dev);
return NULL;
}
#if defined(UPM_PLATFORM_LINUX)
// Would prefer, but not fatal if not available
mraa_gpio_use_mmaped(dev->gpio, 1);
#endif // UPM_PLATFORM_LINUX
mraa_gpio_dir(dev->gpio, MRAA_GPIO_OUT);
return dev;
}
int main(int argc, char **argv)
{
uint8_t speaker_no = 0;
uint8_t speaker_total_no = 2;
uint8_t get_char = 0;
uint8_t n = 0;
ER speaker_msg = 0;
/* 模块初始化 */
// exc_init(); /* 中断初始化 */
//sys_timer_init(); /* 系统时钟初始化 */
speaker_init(); /* 蜂鸣器初始化 */
light_init();
//serial_initialize((intptr_t)(NULL)); /* 初始化串口 */
// printf("\n Welcome to k60 software platform! \n");
while(1)
{
speaker_msg = speaker_close(SPEAKER0);
light_open(LIGHT0);
}
//printf(" *** This is a test for speaker module! *** \n");
// printf(" \n>>>> The speaker will be ringing! \n");
// for(speaker_no = 0; speaker_no < speaker_total_no; speaker_no++)
// {
// delay(200);
// switch (speaker_no)
// {
// case 0:
// speaker_msg = speaker_open(SPEAKER0);
// break;
// case 1:
// speaker_msg = speaker_open(SPEAKER1);
// break;
// default:
// //printf("The speaker number is error!\n");
// break;
//
// }
// if (speaker_msg == E_ID)
// {
// //printf(" The ID of speaker%d is error!\n", speaker_no);
// }
// else if (speaker_msg == E_ILUSE)
// {
// // printf(" The port of speaker%d is not open!\n", speaker_no);
// }
// else
// {
// // printf(" The speaker%d is ringing now!\n", speaker_no);
// }
// }
//
// //printf(" \n>>>> The speaker will be not ringing! \n");
// for (speaker_no = 0; speaker_no < speaker_total_no; speaker_no++)
// {
// delay(200);
// switch (speaker_no)
// {
// case 0:
// speaker_msg = speaker_close(SPEAKER0);
// break;
// case 1:
// speaker_msg = speaker_close(SPEAKER1);
// break;
// default:
// //printf("The speaker number is error!");
// break;
//
// }
// if (speaker_msg == E_ID)
// {
// // printf(" The ID of speaker%d is error !\n", speaker_no);
// }
// else if (speaker_msg == E_ILUSE)
// {
// //printf(" The port of speaker%d is not open!\n", speaker_no);
// }
// else
// {
// //printf(" The speaker%d is not ringing now!\n", speaker_no);
// }
// }
//
// //printf(" \n>>>> The speaker will change frequence! \n");
//
// for(n=0;n<10;n++)
// {
// delay(10);
// if(speaker_read(SPEAKER0))
// {
// speaker_close(SPEAKER0);
// }
// else
// {
// speaker_open(SPEAKER0);
// }
// }
// for(n=0;n<10;n++)
// {
// delay(5);
// if(speaker_read(SPEAKER0))
// {
// speaker_close(SPEAKER0);
// }
// else
// {
// speaker_open(SPEAKER0);
// }
// }
// for(n=0;n<20;n++)
// {
// delay(1);
// if(speaker_read(SPEAKER0))
// {
// speaker_close(SPEAKER0);
// }
// else
// {
// speaker_open(SPEAKER0);
// }
// }
// for(n=0;n<10;n++)
// {
// delay(10);
// if(speaker_read(SPEAKER0))
// {
// speaker_close(SPEAKER0);
// }
// else
// {
// speaker_open(SPEAKER0);
// }
// }
// for(n=0;n<10;n++)
// {
// delay(20);
// if(speaker_read(SPEAKER0))
// {
// speaker_close(SPEAKER0);
// }
// else
// {
// speaker_open(SPEAKER0);
// }
// }
//
// speaker_close(SPEAKER0);
// // printf(" \n>>>> A test for speaker module is over!\n");
// while (1)
// {
// // printf(" \n>>>> Press 'n' to test once more.\n");
// serial_rea_dat(NTSHELL_PORTID, &get_char, 1);
//
// if (get_char == 'n')
// {
// // printf("Once more \n");
// delay(200);
// break;
// }
// }
// }
}
