/**
 * FILE: main.c
 *
 * DESCRIPTION:
 * RP2350 Bare-Metal 1602 LCD Main Application.
 * 
 * BRIEF:
 * Main application entry point for RP2350 1602 LCD driver.
 *
 * AUTHOR: Kevin Thomas
 * CREATION DATE: November 2, 2025
 * UPDATE DATE: November 29, 2025
 */

#include "constants.h"
#include "1602_lcd.h"
#include "delay.h"

/**
 * @brief   Main application entry point.
 *
 * @details Initializes I2C and LCD, displays "Reverse" on line 0 and
 *          "Engineering" on line 1, then enters infinite loop.
 *
 * @param   None
 * @retval  None
 */
int main(void)
{
    // Initialize I2C
    I2C1_Init();
    Delay_MS(500);  // 500ms delay
    
    // Initialize LCD display
    LCD_Init();
    
    // Turn on LCD backlight
    LCD_Backlight_On();
    
    // Display Line 0
    LCD_Set_Cursor(0, 0);  // line 0, position 0
    LCD_Puts("Reverse");
    
    // Display Line 1
    LCD_Set_Cursor(1, 0);  // line 1, position 0
    LCD_Puts("Engineering");
    
    // Wait 10 seconds
    Delay_MS(10000);
    
    // Turn off LCD backlight
    LCD_Backlight_Off();
    
    // Loop forever
    while (1) {
        // Infinite loop
    }
    
    // should never reach here
    return 0;
}