//構建庫函式雛形
//peripheral:外設
#include"stm32f4xx.h"

//peripheral
#define PERIPHERAL	((unsigned int)(0x40000000))
#define AHB1_BASE	((unsigned int)(PERIPHERAL + 0x0002 0000))
#define GPIOA_BASE	((unsigned int)(AHB1_BASE+0x0000 0000))
#define GPIOB_BASE	((unsigned int)(AHB1_BASE+0x0002 0400))
#define GPIOC_BASE	((unsigned int)(AHB1_BASE+0x0002 0800))
#define GPIOD_BASE	((unsigned int)(AHB1_BASE+0x0002 0c00))
#define GPIOE_BASE	((unsigned int)(AHB1_BASE+0x0002 1000))
#define GPIOF_BASE	((unsigned int)(AHB1_BASE+0x0002 1400)
#define GPIOG_BASE	((unsigned int)(AHB1_BASE+0x0002 1800))
#define GPIOH_BASE	((unsigned int)(AHB1_BASE+0x0002 1C00))
#define GPIOI_BASE	((unsigned int)(AHB1_BASE+0x0002 2000))


															// #define GPIOH_MODER 	*(unsigned int*)(GPIOH_BASE+0x00)
															// #define GPIOH_OTYPER 	*(unsigned int*)(GPIOH_BASE+0x04)
															// #define GPIOH_OSPEEDR	*(unsigned int*)(GPIOH_BASE+0x08)
															// #define GPIOH_PUPDR 	*(unsigned int*)(GPIOH_BASE+0x0c)
															// #define GPIOH_IDR		*(unsigned int*)(GPIOH_BASE+0x10)
															// #define GPIOH_ODR 		*(unsigned int*)(GPIOH_BASE+0x14)
															// #define GPIOH_BSRR 		*(unsigned int*)(GPIOH_BASE+0x18)
															// #define GPIOH_LCKR 		*(unsigned int*)(GPIOH_BASE+0x1c)
															// #define GPIOH_AFRL		*(unsigned int*)(GPIOH_BASE+0x20)
															// #define GPIOH_AFRH 		*(unsigned int*)(GPIOH_BASE+0x24)

typedef unsigned int	uint32_t;
typedef unsigned int 	uint16_t;

typedef struct
{
	uint32_t MODER;
	uint32_t OTYPER;
	uint32_t OSPEEDR;
	uint32_t PUPDR;
	uint32_t IDR;
	uint32_t ODR;
	uint16_t BSRRL;
	uint16_t BSSRH;
	uint32_t LCKR;
	uint32_t AFR[2];	
}GPIO_Typedef;

//將GPIOA_BASE變成一個結構體指標
#define GPIOA ((GPIO_Typedef *)(GPIOA_BASE))
#define GPIOB ((GPIO_Typedef *)(GPIOB_BASE))
#define GPIOC ((GPIO_Typedef *)(GPIOC_BASE))
#define GPIOD ((GPIO_Typedef *)(GPIOD_BASE))
#define GPIOE ((GPIO_Typedef *)(GPIOE_BASE))
#define GPIOF ((GPIO_Typedef *)(GPIOF_BASE))
#define GPIOG ((GPIO_Typedef *)(GPIOG_BASE))
#define GPIOH ((GPIO_Typedef *)(GPIOH_BASE))
#define GPIOI ((GPIO_Typedef *)(GPIOI_BASE))
 
void GPIO_SetBits(GPIO_Typedef *GPIOx, uint16_t GPIO_Pin);
void GPIO_RetsetBits(GPIO_Typedef *GPIOx, uint16_t GPIO_Pin);

 int main(void)
{
																		// RCCAHB1PERIPH_BASE |= (1<<7);
																		 
																		// GPIOH_MODER &= ~(3<<2*10); 
																		// GPIOH_MODER |= (1<<2*10); 
																	 
																		// GPIOH->MODER &= ~(3<<2*10);
																		// GPIO->MODER |= (1<<2*10);
																		// PH10輸出低電平
																		// GPIOH_ODR &= ~(1<<10);

	RCC_AHB1ENR |= (1<<7);
	GPIO_SetBits(GPIOH, 10);	//若想要找到GPIOH的definition，若是找不到，可能是keil的options for target中的output中的Brows information 沒有勾上。
	GPIO_ReSetBits(GPIOH, 10);
	
	while(1);
}

/*	函式功能：設定引腳為高電平
	引數說明：GPIOx：結構體指標，指向GPIO埠。GPIO_Pin:要被置位引腳號

*/
void GPIO_SetBits(GPIO_Typedef *GPIOx, uint16_t GPIO_Pin)
{
	GPIOx->BSSRL |= (1<<GPIO_Pin)
}

/*	函式功能：設定引腳為低電平
	引數說明：GPIOx：結構體指標，指向GPIO埠。GPIO_Pin:要被置位引腳號

*/
void GPIO_ResetBits(GPIO_Typedef *GPIOx, uint16_t GPIO_Pin)
{
	GPIOx->BSSRL |= (1<<GPIO_Pin)
}