Homework-5-avr - Hightechrobo bin

C 20

Homework-5-avr By Hightechrobo on 28th August 2025 10:26:37 AM

#include <mega32.h>
#include <delay.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <bool.h>
unsigned char rx_data[20];
unsigned char str[20];
unsigned char rx_buffer;
unsigned char pwm ;
float voltage;
bool enter = 0 ;
void clear_str()
{
char i ;
rx_buffer = 0;
enter = 0;
for(i=0 ; i < 20 ; i++)
rx_data[i] = 0;
}
unsigned char convert(unsigned char *myData) {
int result = 0;
int i = 0;
while (myData[i-1] != '=' && myData[i] <= '9' && myData[i] >= '0')
i++;
while (myData[i] != '%' && myData[i] <= '9' && myData[i] >= '0'){
result = result * 10 + (myData[i] - '0');
i++;}
return result;
}
// USART Receiver interrupt service routine
interrupt [USART_RXC] void usart_rx_isr(void)
{
if(UDR == '\r')
enter = 1 ;
else{
rx_data[rx_buffer] = UDR;
putchar(rx_data[rx_buffer]);
rx_buffer ++ ;
}
if(rx_buffer > 20)
clear_str();
}
unsigned int adc_data;
// Voltage Reference: AREF pin
#define ADC_VREF_TYPE ((0<<REFS1) | (0<<REFS0) | (0<<ADLAR))
// ADC interrupt service routine
interrupt [ADC_INT] void adc_isr(void)
{
// Read the AD conversion result
adc_data=ADCW;
}
// Read the AD conversion result
// with noise canceling
unsigned int read_adc(unsigned char adc_input)
{
ADMUX=adc_input | ADC_VREF_TYPE;
// Delay needed for the stabilization of the ADC input voltage
delay_us(10);
#asm
in r30,mcucr
cbr r30,__sm_mask
sbr r30,__se_bit | __sm_adc_noise_red
out mcucr,r30
sleep
cbr r30,__se_bit
out mcucr,r30
#endasm
return adc_data;
}
void init();
void main(void)
{
init();
puts("UART Console");
putchar('\r');
puts("Command:");
while (1)
{
// Place your code here
if (enter) {
///////////////////////////////////////////relay
if (strstr(rx_data, "relay ON")) {
PORTD.7=1;
puts("\rrelay is on");
}
if (strstr(rx_data, "relay OFF")){
PORTD.7=0;
puts("\rrelay is off");
}
///////////////////////////////////////////PWM
if (strstr(rx_data, "pwm=")){
pwm = convert(rx_data);
OCR0 = (pwm * 255) / 100;
sprintf(str,"pwm is %d %%",pwm);
putchar('\r');
puts(str);
}
///////////////////////////////////////////voltage
if (strstr(rx_data, "voltage")){
voltage = ( read_adc(0) * 5.0 ) /1023.0 ;
sprintf(str,"voltage=%0.2f",voltage);
putchar('\r');
puts(str);
}
clear_str();
puts("\rCommand:");
}
}
}
void init()
{
// Input/Output Ports initialization
// Port A initialization
// Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In
DDRA=(0<<DDA7) | (0<<DDA6) | (0<<DDA5) | (0<<DDA4) | (0<<DDA3) | (0<<DDA2) | (0<<DDA1) | (0<<DDA0);
// State: Bit7=T Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=T Bit0=T
PORTA=(0<<PORTA7) | (0<<PORTA6) | (0<<PORTA5) | (0<<PORTA4) | (0<<PORTA3) | (0<<PORTA2) | (0<<PORTA1) | (0<<PORTA0);
// Port B initialization
// Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=Out Bit2=In Bit1=In Bit0=In
DDRB=(0<<DDB7) | (0<<DDB6) | (0<<DDB5) | (0<<DDB4) | (1<<DDB3) | (0<<DDB2) | (0<<DDB1) | (0<<DDB0);
// State: Bit7=T Bit6=T Bit5=T Bit4=T Bit3=0 Bit2=T Bit1=T Bit0=T
PORTB=(0<<PORTB7) | (0<<PORTB6) | (0<<PORTB5) | (0<<PORTB4) | (0<<PORTB3) | (0<<PORTB2) | (0<<PORTB1) | (0<<PORTB0);
// Port C initialization
// Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In
DDRC=(0<<DDC7) | (0<<DDC6) | (0<<DDC5) | (0<<DDC4) | (0<<DDC3) | (0<<DDC2) | (0<<DDC1) | (0<<DDC0);
// State: Bit7=T Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=T Bit0=T
PORTC=(0<<PORTC7) | (0<<PORTC6) | (0<<PORTC5) | (0<<PORTC4) | (0<<PORTC3) | (0<<PORTC2) | (0<<PORTC1) | (0<<PORTC0);
// Port D initialization
// Function: Bit7=Out Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In
DDRD=(1<<DDD7) | (0<<DDD6) | (0<<DDD5) | (0<<DDD4) | (0<<DDD3) | (0<<DDD2) | (0<<DDD1) | (0<<DDD0);
// State: Bit7=0 Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=T Bit0=T
PORTD=(0<<PORTD7) | (0<<PORTD6) | (0<<PORTD5) | (0<<PORTD4) | (0<<PORTD3) | (0<<PORTD2) | (0<<PORTD1) | (0<<PORTD0);
// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: 125.000 kHz
// Mode: Fast PWM top=0xFF
// OC0 output: Non-Inverted PWM
// Timer Period: 2.048 ms
// Output Pulse(s):
// OC0 Period: 2.048 ms Width: 0 us
TCCR0=(1<<WGM00) | (1<<COM01) | (0<<COM00) | (1<<WGM01) | (0<<CS02) | (1<<CS01) | (1<<CS00);
TCNT0=0x00;
OCR0=0x00;
// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer1 Stopped
// Mode: Normal top=0xFFFF
// OC1A output: Disconnected
// OC1B output: Disconnected
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer1 Overflow Interrupt: Off
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
TCCR1A=(0<<COM1A1) | (0<<COM1A0) | (0<<COM1B1) | (0<<COM1B0) | (0<<WGM11) | (0<<WGM10);
TCCR1B=(0<<ICNC1) | (0<<ICES1) | (0<<WGM13) | (0<<WGM12) | (0<<CS12) | (0<<CS11) | (0<<CS10);
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;
// Timer/Counter 2 initialization
// Clock source: System Clock
// Clock value: Timer2 Stopped
// Mode: Normal top=0xFF
// OC2 output: Disconnected
ASSR=0<<AS2;
TCCR2=(0<<PWM2) | (0<<COM21) | (0<<COM20) | (0<<CTC2) | (0<<CS22) | (0<<CS21) | (0<<CS20);
TCNT2=0x00;
OCR2=0x00;
// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=(0<<OCIE2) | (0<<TOIE2) | (0<<TICIE1) | (0<<OCIE1A) | (0<<OCIE1B) | (0<<TOIE1) | (0<<OCIE0) | (0<<TOIE0);
// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
// INT2: Off
MCUCR=(0<<ISC11) | (0<<ISC10) | (0<<ISC01) | (0<<ISC00);
MCUCSR=(0<<ISC2);
// USART initialization
// Communication Parameters: 8 Data, 1 Stop, No Parity
// USART Receiver: On
// USART Transmitter: On
// USART Mode: Asynchronous
// USART Baud Rate: 9600
UCSRA=(0<<RXC) | (0<<TXC) | (0<<UDRE) | (0<<FE) | (0<<DOR) | (0<<UPE) | (0<<U2X) | (0<<MPCM);
UCSRB=(1<<RXCIE) | (0<<TXCIE) | (0<<UDRIE) | (1<<RXEN) | (1<<TXEN) | (0<<UCSZ2) | (0<<RXB8) | (0<<TXB8);
UCSRC=(1<<URSEL) | (0<<UMSEL) | (0<<UPM1) | (0<<UPM0) | (0<<USBS) | (1<<UCSZ1) | (1<<UCSZ0) | (0<<UCPOL);
UBRRH=0x00;
UBRRL=0x33;
// Analog Comparator initialization
// Analog Comparator: Off
// The Analog Comparator's positive input is
// connected to the AIN0 pin
// The Analog Comparator's negative input is
// connected to the AIN1 pin
ACSR=(1<<ACD) | (0<<ACBG) | (0<<ACO) | (0<<ACI) | (0<<ACIE) | (0<<ACIC) | (0<<ACIS1) | (0<<ACIS0);
// ADC initialization
// ADC Clock frequency: 62.500 kHz
// ADC Voltage Reference: AREF pin
// ADC Auto Trigger Source: ADC Stopped
ADMUX=ADC_VREF_TYPE;
ADCSRA=(1<<ADEN) | (0<<ADSC) | (0<<ADATE) | (0<<ADIF) | (1<<ADIE) | (1<<ADPS2) | (1<<ADPS1) | (1<<ADPS0);
SFIOR=(0<<ADTS2) | (0<<ADTS1) | (0<<ADTS0);
// SPI initialization
// SPI disabled
SPCR=(0<<SPIE) | (0<<SPE) | (0<<DORD) | (0<<MSTR) | (0<<CPOL) | (0<<CPHA) | (0<<SPR1) | (0<<SPR0);
// TWI initialization
// TWI disabled
TWCR=(0<<TWEA) | (0<<TWSTA) | (0<<TWSTO) | (0<<TWEN) | (0<<TWIE);
// Global enable interrupts
#asm("sei")
}

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#include <mega32.h>
#include <delay.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <bool.h>
unsigned char rx_data[20];
unsigned char str[20];
unsigned char rx_buffer;
unsigned char pwm ;
float  voltage; 
bool enter = 0 ;
void clear_str()
{
    char i ;
    rx_buffer = 0;
    enter = 0;
    for(i=0 ; i < 20 ; i++)
        rx_data[i] = 0;
}

unsigned char convert(unsigned char *myData) {
    int result = 0;
    int i = 0;

while (myData[i-1]  != '='   && myData[i] <= '9'  && myData[i] >= '0') 
    i++;
    while (myData[i]    != '%'   && myData[i] <= '9'  && myData[i] >= '0'){
            result = result * 10 + (myData[i] - '0');
    i++;}

return result;
}

// USART Receiver interrupt service routine
interrupt [USART_RXC] void usart_rx_isr(void)
{
   if(UDR == '\r')
   enter = 1 ;
   else{
   rx_data[rx_buffer] = UDR;  
   putchar(rx_data[rx_buffer]);
   rx_buffer ++ ; 
   }
   if(rx_buffer > 20)
    clear_str();
}

unsigned int adc_data;
// Voltage Reference: AREF pin
#define ADC_VREF_TYPE ((0<<REFS1) | (0<<REFS0) | (0<<ADLAR))

// ADC interrupt service routine
interrupt [ADC_INT] void adc_isr(void)
{
// Read the AD conversion result
adc_data=ADCW;
}

// Read the AD conversion result
// with noise canceling
unsigned int read_adc(unsigned char adc_input)
{
ADMUX=adc_input | ADC_VREF_TYPE;
// Delay needed for the stabilization of the ADC input voltage
delay_us(10);
#asm
    in   r30,mcucr
    cbr  r30,__sm_mask
    sbr  r30,__se_bit | __sm_adc_noise_red
    out  mcucr,r30
    sleep
    cbr  r30,__se_bit
    out  mcucr,r30
#endasm
return adc_data;
}

void init();

void main(void)
{

init();
puts("UART Console");
putchar('\r');
puts("Command:");
while (1)
      {
      // Place your code here   
        
      if (enter) {
      
      
        ///////////////////////////////////////////relay 
        if (strstr(rx_data, "relay ON")) {
        PORTD.7=1;
        puts("\rrelay is on");
        }
        if (strstr(rx_data, "relay OFF")){
        PORTD.7=0;    
        puts("\rrelay is off");
        }
        ///////////////////////////////////////////PWM 
        if (strstr(rx_data, "pwm=")){ 
            pwm = convert(rx_data);
            OCR0 = (pwm * 255) / 100;  
            sprintf(str,"pwm is %d %%",pwm); 
        putchar('\r');
        puts(str);
        }
        ///////////////////////////////////////////voltage 
        if (strstr(rx_data, "voltage")){  
        voltage = ( read_adc(0) * 5.0 ) /1023.0 ;
        sprintf(str,"voltage=%0.2f",voltage);
        putchar('\r');
        puts(str);       
        }
                
        
        
        
        
        clear_str();
        puts("\rCommand:");
        }

}
}

void init()
{

// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: 125.000 kHz
// Mode: Fast PWM top=0xFF
// OC0 output: Non-Inverted PWM
// Timer Period: 2.048 ms
// Output Pulse(s):
// OC0 Period: 2.048 ms Width: 0 us
TCCR0=(1<<WGM00) | (1<<COM01) | (0<<COM00) | (1<<WGM01) | (0<<CS02) | (1<<CS01) | (1<<CS00);
TCNT0=0x00;
OCR0=0x00;

// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer1 Stopped
// Mode: Normal top=0xFFFF
// OC1A output: Disconnected
// OC1B output: Disconnected
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer1 Overflow Interrupt: Off
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
TCCR1A=(0<<COM1A1) | (0<<COM1A0) | (0<<COM1B1) | (0<<COM1B0) | (0<<WGM11) | (0<<WGM10);
TCCR1B=(0<<ICNC1) | (0<<ICES1) | (0<<WGM13) | (0<<WGM12) | (0<<CS12) | (0<<CS11) | (0<<CS10);
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;

// Timer/Counter 2 initialization
// Clock source: System Clock
// Clock value: Timer2 Stopped
// Mode: Normal top=0xFF
// OC2 output: Disconnected
ASSR=0<<AS2;
TCCR2=(0<<PWM2) | (0<<COM21) | (0<<COM20) | (0<<CTC2) | (0<<CS22) | (0<<CS21) | (0<<CS20);
TCNT2=0x00;
OCR2=0x00;

// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
// INT2: Off
MCUCR=(0<<ISC11) | (0<<ISC10) | (0<<ISC01) | (0<<ISC00);
MCUCSR=(0<<ISC2);

// TWI initialization
// TWI disabled
TWCR=(0<<TWEA) | (0<<TWSTA) | (0<<TWSTO) | (0<<TWEN) | (0<<TWIE);

// Global enable interrupts
#asm("sei")
}