/**
 ******************************************************************************
 * @file           : main.c
 * @author         : Auto-generated by STM32CubeIDE
 * @brief          : Main program body
 ******************************************************************************
 * @attention
 *
 * Copyright (c) 2026 STMicroelectronics.
 * All rights reserved.
 *
 * This software is licensed under terms that can be found in the LICENSE file
 * in the root directory of this software component.
 * If no LICENSE file comes with this software, it is provided AS-IS.
 *
 ******************************************************************************
 */

#include <stdint.h>
#include "stm32f103xb.h"
#include "stm32f103_hal.c"
#include "stm32f103_hal.h"
#include "lcd.h"


void delay_ms(uint16_t ms);
void delay_us(uint16_t us);

const lcd_cfg_t lcd_cfg = {
		.interface=LCD_INTERFACE_4BIT,
		.timing=LCD_TIMING_DELAY
};

int main(void)
{
	RCC->APB2ENR |= 1 << 2;	// Enable GPIOA clock
	RCC->APB2ENR |= 1 << 4;	// Enable GPIOC clock

	// PC13 as 2MHz push-pull output
	GPIOC->CRH &= ~(0x0F << 20);
	GPIOC->CRH |= 1 << 21;
	GPIOC->ODR |= (1 << 13);

	LCD_Init(&lcd_cfg);
	LCD_SetCursor(0, 0);
	LCD_Print("Microcontrolador");

	LCD_SetCursor(0, 1);
	LCD_Print("Tarea 2.1");

	// Loop
	while ( 1 )
	{
	}
}


void delay_ms(uint16_t ms) {
	volatile unsigned long t = 0;
	for(uint16_t i = 0; i < ms; i++)
	{
		for(t = 0; t < 800; t++);
	}
}

void delay_us(uint16_t us)
{
	for (volatile unsigned int cycles = 0; cycles < us; cycles++);
}