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Updated data for ES

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This commit is contained in:
sherlock 2025-10-16 12:14:52 +05:30
parent d564b198c7
commit 97274dd708
1 changed files with 102 additions and 83 deletions
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185
ES/Lab/Lab10/ADC_Display.c
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@ -4,105 +4,124 @@
#define EN_CTRL 0x10000000 #define EN_CTRL 0x10000000
#define DT_CTRL 0x07800000 #define DT_CTRL 0x07800000
unsigned long result, y;
unsigned long int temp1 = 0, temp2 = 0, i, j; unsigned long int temp1 = 0, temp2 = 0, i, j;
unsigned char flag1 = 0, flag2 = 0; unsigned char flag1 = 0, flag2 = 0;
unsigned char msg[] = ("ADC: "); unsigned long result, y; // ADC variables
unsigned char adc_string[10]; // Buffer for ADC result string
void lcd_write(void); void lcd_write(void);
void port_write(void); void port_write(void);
void delay_lcd(unsigned long); void delay_lcd(unsigned long);
void display_adc(unsigned long); void int_to_string(unsigned long num, unsigned char* str);
unsigned long int init_command[] = { unsigned long int init_command[] = {0x30, 0x30, 0x30, 0x20, 0x28, 0x0C, 0x01, 0x80};
0x30, 0x30, 0x30, 0x20, 0x28, 0x0C, 0x01, 0x80
};
int main() { int main() {
LPC_GPIO0->FIODIR = DT_CTRL | RS_CTRL | EN_CTRL; // LCD GPIO setup
LPC_PINCON->PINSEL3 = 3 << 28; LPC_GPIO0->FIODIR = DT_CTRL | RS_CTRL | EN_CTRL;
LPC_SC->PCONP = 1 << 12;
LPC_ADC->ADCR = 1 << 4 | 1 << 16 | 1 << 21; // ADC setup
LPC_ADC->ADINTEN = (1 << 4); LPC_PINCON->PINSEL3 = 3 << 28; // P1.30 function 3
LPC_SC->PCONP = 1 << 12; // power control
LPC_ADC->ADCR = 1 << 4 | 1 << 16 | 1 << 21; // ADC4, burst mode, enable
LPC_ADC->ADINTEN = (1 << 4); // Interrupt enable
NVIC_EnableIRQ(ADC_IRQn);
NVIC_EnableIRQ(ADC_IRQn); // LCD initialization
flag1 = 0;
for (i = 0; i < 8; i++) {
temp1 = init_command[i];
lcd_write();
}
flag1 = 0; flag1 = 1;
for (i = 0; i < 8; i++) { while(1) {
temp1 = init_command[i]; // Convert ADC result to string and display
lcd_write(); int_to_string(result, adc_string);
}
flag1 = 1; // Clear display and reset cursor
i = 0; flag1 = 0;
temp1 = 0x01; // Clear display
lcd_write();
temp1 = 0x80; // Set cursor to home
lcd_write();
flag1 = 1;
while (msg[i] != '\0') { // Display the ADC result
temp1 = msg[i]; i = 0;
i++; while(adc_string[i] != '\0') {
lcd_write(); temp1 = adc_string[i];
} i++;
lcd_write();
}
display_adc(result); delay_lcd(5000000); // Update every ~1 second
}
while (1);
}
void display_adc(unsigned long adc_val) {
unsigned char digits[4];
int k;
digits[0] = (adc_val / 1000) % 10 + 0x30;
digits[1] = (adc_val / 100) % 10 + 0x30;
digits[2] = (adc_val / 10) % 10 + 0x30;
digits[3] = adc_val % 10 + 0x30;
for (k = 0; k < 4; k++) {
temp1 = digits[k];
lcd_write();
}
}
void lcd_write(void) {
flag2 = (flag1 == 1) ? 0 : (((temp1 == 0x30) || (temp1 == 0x20)) ? 1 : 0);
temp2 = temp1 & 0xf0;
temp2 = temp2 << 19;
port_write();
if (!flag2) {
temp2 = temp1 & 0x0f;
temp2 = temp2 << 23;
port_write();
}
}
void port_write(void) {
LPC_GPIO0->FIOPIN = temp2;
if (flag1 == 0) {
LPC_GPIO0->FIOCLR = RS_CTRL;
} else {
LPC_GPIO0->FIOSET = RS_CTRL;
}
LPC_GPIO0->FIOSET = EN_CTRL;
delay_lcd(100);
LPC_GPIO0->FIOCLR = EN_CTRL;
delay_lcd(500000);
}
void delay_lcd(unsigned long r1) {
unsigned long r;
for (r = 0; r < r1; r++);
return;
} }
void ADC_IRQHandler(void) { void ADC_IRQHandler(void) {
result = (LPC_ADC->ADGDR & (0xFFF << 4)) >> 4; result = (LPC_ADC->ADGDR & (0xFFF << 4)) >> 4; // Read 12-bit ADC result
y = (LPC_ADC->ADDR4 & (0xFFF << 4)) >> 4; y = (LPC_ADC->ADDR4 & (0xFFF << 4)) >> 4; // Done bit reset
} }
void int_to_string(unsigned long num, unsigned char* str) {
int i = 0, j;
unsigned char temp;
// Handle zero case
if (num == 0) {
str[0] = '0';
str[1] = '\0';
return;
}
// Convert number to string (reverse order)
while (num > 0) {
str[i++] = (num % 10) + '0';
num /= 10;
}
str[i] = '\0';
// Reverse the string
for (j = 0; j < i/2; j++) {
temp = str[j];
str[j] = str[i-1-j];
str[i-1-j] = temp;
}
}
void lcd_write(void) {
flag2 = (flag1 == 1) ? 0 : (((temp1 == 0x30) || (temp1 == 0x20)) ? 1 : 0);
temp2 = temp1 & 0xf0;
temp2 = temp2 << 19;
port_write();
if (!flag2) {
temp2 = temp1 & 0x0f;
temp2 = temp2 << 23;
port_write();
}
}
void port_write(void) {
LPC_GPIO0->FIOPIN = temp2;
if (flag1 == 0) {
LPC_GPIO0->FIOCLR = RS_CTRL;
} else {
LPC_GPIO0->FIOSET = RS_CTRL;
}
LPC_GPIO0->FIOSET = EN_CTRL;
delay_lcd(100);
LPC_GPIO0->FIOCLR = EN_CTRL;
delay_lcd(500000);
}
void delay_lcd(unsigned long r1) {
unsigned long r;
for (r = 0; r < r1; r++);
return;
}