Forum >Audio Analyzer
Audio Analyzer
pandora 2012-05-30 11:14:09 5688 Views6 Replies Hello,
I came again, now I want to try using audio analyzer (+analog sound sensor) connect to atmega16 (coding with cvavr).
I've seen the sample code in the wiki, but I have trouble to change library code in arduino to cvavr.
can you help me?
I came again, now I want to try using audio analyzer (+analog sound sensor) connect to atmega16 (coding with cvavr).
I've seen the sample code in the wiki, but I have trouble to change library code in arduino to cvavr.
can you help me?
2012-07-03 18:33:14 Hi Pandora,
Thanks for the contribution! Your code has been added to the Wiki. Please let me know if you would like me to make some modification.
[url=https://www.dfrobot.com/wiki/index.php?title=Audio_Analyzer_(SKU:DFR0126)#Sample_code]https://www.dfrobot.com/wiki/index.php?title=Audio_Analyzer_(SKU:DFR0126)#Sample_code[/url] Hector
Thanks for the contribution! Your code has been added to the Wiki. Please let me know if you would like me to make some modification.
[url=https://www.dfrobot.com/wiki/index.php?title=Audio_Analyzer_(SKU:DFR0126)#Sample_code]https://www.dfrobot.com/wiki/index.php?title=Audio_Analyzer_(SKU:DFR0126)#Sample_code[/url]
Hector 2012-07-03 03:46:29 Hi,
This convert code to cvavr :
I'm using atmega128 (clock 16Mhz), usart0 (9600 baud rate), timer1 (scale clock 1024), adc.
formula timer1 when use clock freq 16Mhz
Ttimer1 = Periode Timer1
TCNT1 = Register Timer1
N = Scale clock (1, 8, 64, 256 dan 1024)
Tosc = Periode clock
Fosc = Frekuensi clock cristal
Tosc = 1/Fosc
Tosc = 1/16Mhz = 0,0000000625
Ttimer1 = Tosc * (65536 - TCNT1) * N
1 (second) = 0,0000000625 * (65536 - TCNT1) * 1024
TCNT1 = 49911
TCNT1 = C2F7 (in hex) <-- this use in //Timer 1 overflow interrupt service routine
Clock value = Fosc/N
Clock value = 16Mhz/1024 = 15,625 kHz <-- this use in clock value timer1
Can use timer0 or other timer with each formula
CMIIW. thanks.
[code]
/*****************************************************
Chip type : ATmega128
Program type : Application
Clock frequency : 16,000000 MHz
Memory model : Small
External SRAM size : 0
Data Stack size : 1024
*****************************************************/
int sec, band, freq[7], i;
unsigned long int time_a, time_b;
int stat = 0;
#include <mega128.h>
#include <stdio.h>
#include <delay.h>
// Timer 1 overflow interrupt service routine
interrupt [TIM1_OVF] void timer1_ovf_isr(void)
{
// Reinitialize Timer 1 value
TCNT1H=0xC2F7 >> 8;
TCNT1L=0xC2F7 & 0xff;
// Place your code here
sec++;
}
#define ADC_VREF_TYPE 0x40
// Read the AD conversion result
unsigned int read_adc(unsigned char adc_input)
{
ADMUX=adc_input | (ADC_VREF_TYPE & 0xff);
// Delay needed for the stabilization of the ADC input voltage
delay_us(10);
// Start the AD conversion
ADCSRA|=0x40;
// Wait for the AD conversion to complete
while ((ADCSRA & 0x10)==0);
ADCSRA|=0x10;
return ADCW;
}
void RstModule()
{
PORTD.0 = 0; //S Low
PORTD.1 = 1; //R High
PORTD.0 = 1; //S High
PORTD.0 = 0; //S Low
PORTD.1 = 0; //R Low
delay_us(72);
}
void Init()
{
DDRD.0 = 1; //S pin
DDRD.1 = 1; //R pin
RstModule();
}
void ReadFreq(int *value)
{
if (stat == 0) {
time_a = sec;
stat = 1;
} else if (stat == 1) {
time_b = sec;
if (time_b - time_a > 3) {
RstModule();
stat = 0;
}
}
for (band=0;band<7;band++) {
delay_us(10);
value[band] = read_adc(0);
delay_us(50);
PORTD.0 = 1; //S High
delay_us(18);
PORTD.0 = 0; //S Low
}
}
void main(void)
{
// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: 15,625 kHz
// Mode: Normal top=FFFFh
// OC1A output: Discon.
// OC1B output: Discon.
// OC1C output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer 1 Overflow Interrupt: On
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
// Compare C Match Interrupt: Off
TCCR1A=0x00;
TCCR1B=0x05;
TCNT1H=0xC2;
TCNT1L=0xF7;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;
OCR1CH=0x00;
OCR1CL=0x00;
// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x04;
ETIMSK=0x00;
// USART0 initialization
// Communication Parameters: 8 Data, 1 Stop, No Parity
// USART0 Receiver: Off
// USART0 Transmitter: On
// USART0 Mode: Asynchronous
// USART0 Baud Rate: 9600
UCSR0A=0x00;
UCSR0B=0x08;
UCSR0C=0x06;
UBRR0H=0x00;
UBRR0L=0x67;
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;
// ADC initialization
// ADC Clock frequency: 1000,000 kHz
// ADC Voltage Reference: AREF pin
ADMUX=ADC_VREF_TYPE & 0xff;
ADCSRA=0x84;
// Global enable interrupts
#asm("sei")
Init();
while (1)
{
ReadFreq(freq);
for (i=0;i<7;i++) {
printf("%d",freq[i]-100);
if(i<6) printf(", ");
else printf("\r\n");
}
delay_ms(20);
};
}
[/code] pandora
This convert code to cvavr :
I'm using atmega128 (clock 16Mhz), usart0 (9600 baud rate), timer1 (scale clock 1024), adc.
formula timer1 when use clock freq 16Mhz
Ttimer1 = Periode Timer1
TCNT1 = Register Timer1
N = Scale clock (1, 8, 64, 256 dan 1024)
Tosc = Periode clock
Fosc = Frekuensi clock cristal
Tosc = 1/Fosc
Tosc = 1/16Mhz = 0,0000000625
Ttimer1 = Tosc * (65536 - TCNT1) * N
1 (second) = 0,0000000625 * (65536 - TCNT1) * 1024
TCNT1 = 49911
TCNT1 = C2F7 (in hex) <-- this use in //Timer 1 overflow interrupt service routine
Clock value = Fosc/N
Clock value = 16Mhz/1024 = 15,625 kHz <-- this use in clock value timer1
Can use timer0 or other timer with each formula
CMIIW. thanks.
[code]
/*****************************************************
Chip type : ATmega128
Program type : Application
Clock frequency : 16,000000 MHz
Memory model : Small
External SRAM size : 0
Data Stack size : 1024
*****************************************************/
int sec, band, freq[7], i;
unsigned long int time_a, time_b;
int stat = 0;
#include <mega128.h>
#include <stdio.h>
#include <delay.h>
// Timer 1 overflow interrupt service routine
interrupt [TIM1_OVF] void timer1_ovf_isr(void)
{
// Reinitialize Timer 1 value
TCNT1H=0xC2F7 >> 8;
TCNT1L=0xC2F7 & 0xff;
// Place your code here
sec++;
}
#define ADC_VREF_TYPE 0x40
// Read the AD conversion result
unsigned int read_adc(unsigned char adc_input)
{
ADMUX=adc_input | (ADC_VREF_TYPE & 0xff);
// Delay needed for the stabilization of the ADC input voltage
delay_us(10);
// Start the AD conversion
ADCSRA|=0x40;
// Wait for the AD conversion to complete
while ((ADCSRA & 0x10)==0);
ADCSRA|=0x10;
return ADCW;
}
void RstModule()
{
PORTD.0 = 0; //S Low
PORTD.1 = 1; //R High
PORTD.0 = 1; //S High
PORTD.0 = 0; //S Low
PORTD.1 = 0; //R Low
delay_us(72);
}
void Init()
{
DDRD.0 = 1; //S pin
DDRD.1 = 1; //R pin
RstModule();
}
void ReadFreq(int *value)
{
if (stat == 0) {
time_a = sec;
stat = 1;
} else if (stat == 1) {
time_b = sec;
if (time_b - time_a > 3) {
RstModule();
stat = 0;
}
}
for (band=0;band<7;band++) {
delay_us(10);
value[band] = read_adc(0);
delay_us(50);
PORTD.0 = 1; //S High
delay_us(18);
PORTD.0 = 0; //S Low
}
}
void main(void)
{
// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: 15,625 kHz
// Mode: Normal top=FFFFh
// OC1A output: Discon.
// OC1B output: Discon.
// OC1C output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer 1 Overflow Interrupt: On
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
// Compare C Match Interrupt: Off
TCCR1A=0x00;
TCCR1B=0x05;
TCNT1H=0xC2;
TCNT1L=0xF7;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;
OCR1CH=0x00;
OCR1CL=0x00;
// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x04;
ETIMSK=0x00;
// USART0 initialization
// Communication Parameters: 8 Data, 1 Stop, No Parity
// USART0 Receiver: Off
// USART0 Transmitter: On
// USART0 Mode: Asynchronous
// USART0 Baud Rate: 9600
UCSR0A=0x00;
UCSR0B=0x08;
UCSR0C=0x06;
UBRR0H=0x00;
UBRR0L=0x67;
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;
// ADC initialization
// ADC Clock frequency: 1000,000 kHz
// ADC Voltage Reference: AREF pin
ADMUX=ADC_VREF_TYPE & 0xff;
ADCSRA=0x84;
// Global enable interrupts
#asm("sei")
Init();
while (1)
{
ReadFreq(freq);
for (i=0;i<7;i++) {
printf("%d",freq[i]-100);
if(i<6) printf(", ");
else printf("\r\n");
}
delay_ms(20);
};
}
[/code]
pandora 2012-06-30 05:15:22 finally, success convert code to cvavr and working.
maybe tomorrow I will post the code.
I want to ask, data FreqVal[] number 3,4,5,6 the result is minus if there is no sound. it's true?
example result if there is no sound :
484, 180, 31, -28, -37, -8, -43 pandora
maybe tomorrow I will post the code.
I want to ask, data FreqVal[] number 3,4,5,6 the result is minus if there is no sound. it's true?
example result if there is no sound :
484, 180, 31, -28, -37, -8, -43
pandora 2012-05-31 20:19:17 Thanks for reply hector,
oke i'll try it. but I'm still confuse about "millis()" to convert to cvavr.
i'll post it if succeed. pandora
oke i'll try it. but I'm still confuse about "millis()" to convert to cvavr.
i'll post it if succeed.
pandora 2012-05-31 19:39:23 Hi Pandora,
I'm not familiar with cvavr. We supply the code as is, we really can not help with modifying code. I really have a lot of work and lots of requests as you can see in the forum. I would love to help with modifying code, but alas, there is only one of me :(
If you can succeed in making new code, please post it here and I will add it to the wiki for others to use. Hector
I'm not familiar with cvavr. We supply the code as is, we really can not help with modifying code. I really have a lot of work and lots of requests as you can see in the forum. I would love to help with modifying code, but alas, there is only one of me :(
If you can succeed in making new code, please post it here and I will add it to the wiki for others to use.
Hector 