Pic digital tube dynamic scanning display program

Single Chip Microcontroller STM32L151CCU6

0201 Package SLP0603 ESD Diode 5V Unidirectional ESD Protection

MOSFET-based ESD Protection

#include // Includes predefined internal resources of the microcontroller __CONFIG(0x1832); // Configuration word: WDT off, Power-up Timer on, Power-down Detection off, Low-voltage programming off, Code protection enabled, 4MHz HS oscillator void delay(); // Declaration of the delay function void init(); // Declaration of the I/O port initialization function const char TABLE[] = {0xc0, 0xf9, 0xa4, 0xb0, 0x99, 0x92}; // Constant data table for digits 0 to 5 void main() // Main function { while(1) // Infinite loop to keep the digital tube continuously lit { init(); // Call the initialization function PORTD = TABLE[0]; // Output the first value from the data table to PORTD PORTA = 0x3E; // Turn on the first digit display delay(); // Delay to ensure proper brightness of the display PORTD = TABLE[1]; // Display the second value (same as 0) PORTA = 0x3D; delay(); PORTD = TABLE[2]; // Display the third value (same as 0) PORTA = 0x3B; delay(); PORTD = TABLE[3]; // Display the fourth value (same as 0) PORTA = 0x37; delay(); PORTD = TABLE[4]; // Display the fifth value (same as 0) PORTA = 0x2F; delay(); PORTD = TABLE[5]; // Display the sixth value (same as 0) PORTA = 0x1F; delay(); } } void init() // I/O port initialization function { TRISA = 0x00; // Set A0 as output, others as input TRISD = 0x00; // Set PORTD as output ADCON1 = 0x07; // Configure PORTA as standard I/O PORTA = 0xFF; // Initialize PORTA PORTD = 0xFF; // Turn off all displays initially } void delay() // Delay function { int i; // Define a counter variable for(i = 0x100; i--;); // Simple delay loop }

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