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Updated data for ES

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This commit is contained in:
sherlock 2025-10-16 12:42:46 +05:30
parent 8d75a2dd24
commit a4d545ac19
1 changed files with 24 additions and 14 deletions
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38
ES/Lab/Lab10/ADC_Display.c
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@ -5,26 +5,30 @@
#define EN_CTRL 0x10000000 #define EN_CTRL 0x10000000
#define DT_CTRL 0x07800000 #define DT_CTRL 0x07800000
unsigned long result, y; // ADC Result unsigned long result, y;
unsigned long int temp1 = 0, temp2 = 0, i; unsigned long int temp1 = 0, temp2 = 0, i;
unsigned char flag1 = 0, flag2 = 0; unsigned char flag1 = 0, flag2 = 0;
unsigned char msg[20]; // To store the ADC value string unsigned char msg[20];
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 lcd_init(void); void lcd_init(void);
void lcd_print(unsigned char *); void lcd_print(unsigned char *);
void lcd_clear(void);
void ADC_IRQHandler(void); void ADC_IRQHandler(void);
void ADC_init(void); void ADC_init(void);
int main(void) { int main(void) {
LPC_GPIO0->FIODIR = DT_CTRL | RS_CTRL | EN_CTRL; // LCD pins as output LPC_GPIO0->FIODIR = DT_CTRL | RS_CTRL | EN_CTRL; // LCD pins as output
lcd_init(); // initialize LCD
ADC_init(); // initialize ADC lcd_init(); // Initialize LCD
lcd_print((unsigned char *)"ADC Val:"); // Idle message
ADC_init(); // Initialize ADC
while (1) { while (1) {
// main loop does nothing, display will update via interrupt // idle loop
} }
} }
@ -37,16 +41,14 @@ void ADC_init(void) {
} }
void ADC_IRQHandler(void) { void ADC_IRQHandler(void) {
result = (LPC_ADC->ADGDR >> 4) & 0xFFF; // Get 12-bit ADC result result = (LPC_ADC->ADGDR >> 4) & 0xFFF; // 12-bit ADC result
// Convert to string lcd_clear();
sprintf((char *)msg, "ADC: %ld", result); lcd_print((unsigned char *)"ADC Val:");
sprintf((char *)msg, " %lu", result);
// Display on LCD
lcd_print(msg); lcd_print(msg);
// Clear interrupt flag (by reading ADDR4) y = (LPC_ADC->ADDR4 >> 4) & 0xFFF; // clear done flag
y = (LPC_ADC->ADDR4 >> 4) & 0xFFF;
} }
void lcd_init(void) { void lcd_init(void) {
@ -59,6 +61,7 @@ void lcd_init(void) {
lcd_write(); lcd_write();
} }
flag1 = 1; flag1 = 1;
delay_lcd(5000);
} }
void lcd_print(unsigned char *text) { void lcd_print(unsigned char *text) {
@ -70,6 +73,14 @@ void lcd_print(unsigned char *text) {
} }
} }
void lcd_clear(void) {
flag1 = 0;
temp1 = 0x01; // clear command
lcd_write();
delay_lcd(5000);
flag1 = 1;
}
void lcd_write(void) { void lcd_write(void) {
flag2 = (flag1 == 1) ? 0 : (((temp1 == 0x30) || (temp1 == 0x20)) ? 1 : 0); flag2 = (flag1 == 1) ? 0 : (((temp1 == 0x30) || (temp1 == 0x20)) ? 1 : 0);
@ -100,6 +111,5 @@ void port_write(void) {
void delay_lcd(unsigned long r1) { void delay_lcd(unsigned long r1) {
unsigned long r; unsigned long r;
for (r = 0; r < r1; r++) for (r = 0; r < r1; r++);
;
} }