/*
 * My gola is to write my own gio lib
 *
 */

//USER LED GREEN
//PORT B 
//PIN 3 

//#define PERIPH_BASE			(0x40000000UL)

#define AHB1_PERIPH_OFFSET  (0x00020000UL)
#define AHB1_PERIPH_BASE	(PERIPH_BASE + AHB1_PERIPH_OFFSET)

#define AHB2_PERIPH_OFFSET	(0x08000000UL)
#define AHB2_PERIPH_BASE	(PERIPH_BASE + AHB2_PERIPH_OFFSET)

#define GPIOA_OFFSET		(0x0000U)
//#define GPIOA_BASE			(AHB2_PERIPH_BASE + GPIOA_OFFSET)

#define GPIOB_OFFSET		(0x00000400UL)
//#define GPIOB_BASE			(AHB2_PERIPH_BASE + GPIOB_OFFSET)

#define RCC_OFFSET			(0x00021000UL)
//#define RCC_BASE			(AHB1_PERIPH_BASE + RCC_OFFSET)
//https://stackoverflow.com/questions/18785991/define-regx-volatile-unsigned-int-x

#define AHBENR_OFFSET		(0x14UL)
#define RCC_AHBENR			(*(volatile unsigned int *)(RCC_BASE + AHBENR_OFFSET))

#define IOPAEN				(1U << 17) 
#define IOPBEN				(1U << 18) 


#define MODER_OFFSET		(0x00UL)
#define GPIOX_MODER			(*(volatile unsigned int *)(GPIOB_BASE + MODER_OFFSET))

#define GPIOX_ODR_OFFSET	(0x14UL)
#define GPIOB_ODR			(*(volatile unsigned int *)(GPIOB_BASE + GPIOX_ODR_OFFSET))

#define PINB3				(1U<<3)



#define LED_PIN		PINB3