MSP430 G2553 program help: I have a microphone and buzzer and all I need is a co
ID: 659034 • Letter: M
Question
MSP430 G2553 program help:
I have a microphone and buzzer and all I need is a code that activates the buzzer at a certain frequency (glass breaking sound). I am using this code but it will not debug as it gives me errors.
CODE:
#include "msp430.h"
#include <intrinsics.h>
#define TACCR0_2ms 25 // TACCR0 = 20 @ VLO=12khz
#define HIGH_LVL 100 // threshold to detect ACTIVITY
#define LOW_LVL -40 // threshold to detect ACTIVITY
#define THUD_LVL 35 // threshold to confirm valid THUD
// Define and initialize global variables
volatile unsigned int i, discard_count=0, sample_count;
volatile int temp1;
int output1;
long average=0, sum =0;
unsigned char discard_flag=1, activity=0, OA1_delay_ON=0;
// Function prototypes
int wdf_thud(int);
void signal_analysis_one(void);
void signal_analysis_two(void);
void init_glass_break(void);
void INIT_wdf_2k(void);
void delay_8MHz_no_AAF(void);
void INITMEM(void);
void INIT_WDF(void);
void main(void)
{
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
P1DIR= 0xFF; // Configure Port pins
P1OUT= 0;
P2DIR= 0xFF;
P2OUT= 0;
P3DIR= 0xFF;
P3OUT= 0;
P4DIR= 0xFF;
P4OUT= 0;
// Configure Clock system
BCSCTL1= CALBC1_12MHZ; // Set DCO = 12MHz
DCOCTL = CALDCO_12MHZ;
BCSCTL3 = LFXT1S_2; // ACLK = VLO
// Configure ADC10
ADC10CTL0 = ADC10SHT_1+ADC10SR; // Sample and hold time = 8xADC10CLKS
ADC10CTL1= INCH_1+ADC10DIV_2+ADC10SSEL_3+CONSEQ_0; // input channel A1,
// ADC10CLK=SMCLK/3, single-channel-
// single-conversion mode
// Enable Op-amp 0
ADC10AE0 = BIT0+BIT1+BIT2; // A0+A1+A2 analog enable (OA0 i/ps and o/p)
OA1CTL1= OAFBR_6+OAFC_6+OANEXT; // Inv PGA, Gain = -7, ext inv input
OA0CTL0= OAN_1+OAADC1; // Output high Z, OA0 output to
// ADC10 input channel A1
// Enable Op-amp 1
ADC10AE1 = 0x0A0; // A13+A15 analog enable (OA1 +ve i/p and o/p)
OA1CTL1= OAFC_2; // Unity gain buffer mode
OA0CTL0= OAP_3+OAADC0; // Output high Z, OA0 output to
// ADC10 input channel A13
// Configure Timer_A to generate 2.5ms device wake-up
TACTL= TASSEL0; // TACLK = ACLK=VLO
TACCTL0 = CCIE; // Capture compare interrupt enable
TACCR0 = TACCR0_2ms; // Load TACCR0 with 2.5ms count
TACTL |= MC_1; // Up mode, TA start
while(1)
{
if(activity) // Check actvity flag
__bis_SR_register(LPM0_bits + GIE); // LPM0, Global Interrupts Enable
else
__bis_SR_register(LPM3_bits + GIE); // LPM3, Global Interrupts Enable
P4OUT |=BIT0; // Microphone ON
P2OUT |=BIT4; // Offset Voltage ON
OA0CTL0 |= OAPM_3; // Fast mode for Gain Op-amp
delay_8MHz_no_AAF(); // Delay for gain opamp
ADC10CTL0 |= ADC10ON;
ADC10CTL0 |= ENC + ADC10SC; // Enable ADC10 + start conversion
while((ADC10BUSY & ADC10CTL0)); // Check for conversion complete
OA0CTL0 &= ~(OAPM_3); // Gain-Op-amp OFF
P4OUT &= ~BIT0; // Microphone OFF
P2OUT &= ~BIT4; // Voltage offset OFF
temp1= ADC10MEM-500; // Conv result - op-amp ref voltage
if(discard_flag) // Discard first 200 samples
{
if(++discard_count > 200)
discard_flag = 0;
ADC10CTL0 &= ~ENC;
ADC10CTL0 &= ~ADC10ON; // Power-off ADC10
TACCTL0 = CCIE;
TACCR0 = TACCR0_2ms;
TACTL |= MC_1; // Re-enable Timer, Up mode
}
else // Valid if discard_flag = 0
{
// Compare sampled data with thresholds to detect activity
if((temp1 >= HIGH_LVL) || (temp1 <= LOW_LVL))
{
// ACTIVITY Detected
BCSCTL1= CALBC1_8MHZ; // Set DCO = 8MHz
DCOCTL = CALDCO_8MHZ;
P4OUT |=BIT0; // Microphone ON
P2OUT |=BIT4; // Offset Voltage ON
OA0CTL0 |=OAPM_3; // Fast mode for Gain Op-amp
OA1_delay_ON = 1; // Set OA1_delay _ON flag
OA1CTL0 |=OAPM_3; // Fast mode for filter Op-amp
// Configure Timer_A to provide a delay
// of 3.2ms for filter to settle
TACCR0 = 32;
TACCTL0 = CCIE;
TACTL |= MC_1; // Up mode, TA start
__bis_SR_register(LPM3_bits + GIE); // LPM3, enable interrupts
sum = 0;
sample_count = 0;
activity =1; // Set activity flag
ADC10CTL0 &= ~ENC; // Disable ADC and rec-configure
ADC10CTL0 = ADC10SHT_1+ADC10SR; // Sample and hold time = 8xADC10CLKS
ADC10CTL1= INCH_13+ADC10DIV_2+ADC10SSEL_3+CONSEQ_0; // input channel A13,
// single-channel-single-conversion mode
// Configure Timer_B to interrupt every 0.25ms
TBCTL= TBSSEL_2; // TBCLK = SMCLK = 8MHz
TBCCTL0 = CCIE; // Capture compare interrupt enable
TBCCR0 = 1999; // Load TACCR0 with 0.25ms count
TBCTL |= MC_1; // Up mode, TA start
}
else
{
// No ACTVITY Detected
ADC10CTL0 &= ~ENC;
ADC10CTL0 &= ~ADC10ON; // Power-off ADC10
TACCTL0 = CCIE;
TACCR0 = TACCR0_2ms;
TACTL |= MC_1; // Re-enable Timer_A for 2.5ms periodic wake-up
}
}
}
}
// Timer_A0 Interrupt Service Routine
#pragma vector=TIMERA0_VECTOR
__interrupt void TIMER_ISR(void)
{
if(!OA1_delay_ON) // Is Filter_Opamp delay ON?
{
TACTL &=~(MC_1); // Stop Timer_A
}
else
{
TACTL &=~(MC_1); // Stop Timer_A
OA1_delay_ON=0; // Reset the OA1_delay_ON flag
}
__bic_SR_register_on_exit(LPM3_bits+GIE); // Clear LPM bits upon ISR Exit
}
// Timer_B0 Interrupt Service Routine
#pragma vector=TIMERB0_VECTOR
__interrupt void TIMERB_ISR(void)
{
ADC10CTL0 |= ADC10ON;
ADC10CTL0 |= ENC + ADC10SC; // Enable ADC10 + start conversion
while((ADC10BUSY & ADC10CTL0)); // Check for conversion complete
temp1= ADC10MEM-530; // Conv result - op-amp ref voltage
sample_count++; // Increment sample_count
wdf_thud(temp1); // Call the LWDF for thud detection
if (output1 & 0x8000) // Convert numbers with sign bit = 1 to -ve numbers
output1 = ~output1 + 1;
sum=sum+output1; // Accumulate LWDF output in variable sum
if(sample_count==128) // 128 samples accumulated? (32ms over?)
{
TBCTL &=~(MC_1); // Stop Timer_B
sample_count=0; // clear sample_count
average = (sum) >> 7; // Average = sum/128
sum = 0; // Clear sum
if (average >= THUD_LVL) // Compare average with Thud threshold
{
// VALID THUD Detected
init_glass_break();
}
else
{
// VALID THUD not confirmed
BCSCTL1= CALBC1_12MHZ; // Set DCO = 12MHz
DCOCTL = CALDCO_12MHZ;
OA0CTL0 &= ~(OAPM_3); // OA0 Gain-Op-amp OFF
OA1CTL0 &= ~(OAPM_3); // OA1 Filter OFF
ADC10CTL0 &= ~ENC + ADC10IE;// Power-off ADC10 & "disable interrupts" - not reqd
ADC10CTL0 &= ~ADC10ON;
// Re-configure ADC10
ADC10CTL0 = ADC10SHT_1+ADC10SR; // Sample and hold time = 8xADC10CLKS
ADC10CTL1= INCH_1+ADC10DIV_2+ADC10SSEL_3+CONSEQ_0;// input channel A1,
// single-channel-single-conversion mode
P4OUT &= ~BIT0; // Microphone OFF
P2OUT &= ~BIT4; // Offset Voltage OFF
INIT_wdf_2k(); // Clear all the WDF variables
activity=0; // Clear activity flag
TACCTL0 = CCIE;
TACCR0 = TACCR0_2ms;
TACTL |= MC_1; // Re-enable Timer_A for 2.5ms periodic wake-up
__bic_SR_register_on_exit(LPM0_bits); // Clear LPM0 bits on ISR exit
__bis_SR_register_on_exit(LPM3_bits+GIE); // Enter LPM3 on ISR exit
}
}
}
// ADC10 Interrupt Service Routine
#pragma vector=ADC10_VECTOR
__interrupt void ADC10_ISR(void)
{
temp1= ADC10MEM-530; // Conv result - op-amp ref voltage
sample_count++; // Increment sample_count
{
signal_analysis_one();
if (sample_count ==2336) // 2336 samples accumulated? (60ms over?)
{
signal_analysis_two();
// Reconfigure ADC10
ADC10CTL0 = ADC10SHT_1+ADC10SR; // Sample and hold time = 8xADC10CLKS
ADC10CTL1= INCH_1+ADC10DIV_2+ADC10SSEL_3+CONSEQ_0; // input channel A1,
// single-channel-single-conversion mode
activity=0; // clear activity flag
// Re-enable Timer_A for 2.5ms periodic wake-up
TACCTL0 = CCIE;
TACCR0 = TACCR0_2ms;
TACTL |= MC_1; // Up-mode, start Timer_A
__bic_SR_register_on_exit(LPM0_bits); // Clear LPM0 bits on ISR exit
__bis_SR_register_on_exit(LPM3_bits+GIE); // Enter LPM3 on ISR exit
}
}
}
void init_glass_break()
{
BCSCTL1= CALBC1_12MHZ; // Set DCO = 12Mhz
DCOCTL = CALDCO_12MHZ;
OA1CTL0 &= ~(OAPM_3); // Turn off OA1 (2 kHz AAF filter)
// Initialize all variables used in
INITMEM(); // Signal Analysis one and two
INIT_WDF();
sample_count = 0; // Clear sample_count
ADC10CTL0 &= ~ENC; // Disable ADC10
// Configure ADC10 continuous conv at
// ~38.9 ksps sampling rate
ADC10CTL0= ADC10SHT_3+ADC10SR+MSC+ADC10ON+ADC10IE; // 64 x ADC10CLKs,
// ref buff sampling rate supports upto ~50ksps,
// multiple sample and conv, interrupt enable
ADC10CTL1= INCH_1+ADC10DIV_3+ADC10SSEL_3+CONSEQ_2; // A1, ADC10CLK/4, ADC10CLK = SMCLK,
// Repeat-single-channel
ADC10CTL0 |= ENC+ADC10SC; // Start conversion
}
Explanation / Answer
please stat which kind of error it is giving..
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