port_system.h

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#ifndef PORT_SYSTEM_H_
#define PORT_SYSTEM_H_
 
/* Includes ------------------------------------------------------------------*/
/* Standard C includes */
#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
 
/* HW dependent includes */
#include "stm32f4xx.h"
 
/* Defines and enums ----------------------------------------------------------*/
/* Defines */
#define BIT_POS_TO_MASK(x) (0x01 << (x))                                                                
#define BASE_MASK_TO_POS(m, p) ((m) << (p))                                                             
#define GET_PIN_IRQN(pin) (pin >= 10 ? EXTI15_10_IRQn : (pin >= 5 ? EXTI9_5_IRQn : (EXTI0_IRQn + pin))) 
/* Microcontroller STM32F446RE */
/* Timer configuration */
#define RCC_HSI_CALIBRATION_DEFAULT 0x10U            
#define TICK_FREQ_1KHZ 1U                            
#define NVIC_PRIORITY_GROUP_0 ((uint32_t)0x00000007) 
#define NVIC_PRIORITY_GROUP_4 ((uint32_t)0x00000003) 
/* Power */
#define POWER_REGULATOR_VOLTAGE_SCALE3 0x01 
/* GPIOs */
#define HIGH true 
#define LOW false 
#define GPIO_MODE_IN 0x00        
#define GPIO_MODE_OUT 0x01       
#define GPIO_MODE_ALTERNATE 0x02 
#define GPIO_MODE_ANALOG 0x03    
#define GPIO_PUPDR_NOPULL 0x00 
#define GPIO_PUPDR_PUP 0x01    
#define GPIO_PUPDR_PDOWN 0x02  
/* Interruption */
#define TRIGGER_RISING_EDGE 0x01U                                      
#define TRIGGER_FALLING_EDGE 0x02U                                     
#define TRIGGER_BOTH_EDGE (TRIGGER_RISING_EDGE | TRIGGER_FALLING_EDGE) 
#define TRIGGER_ENABLE_EVENT_REQ 0x04U                                 
#define TRIGGER_ENABLE_INTERR_REQ 0x08U                                
/* ADC */
#define ADC_VREF_MV 3300U 
#define ADC_RESOLUTION_12B (0x00U << ADC_CR1_RES_Pos) 
#define ADC_RESOLUTION_10B (0x01U << ADC_CR1_RES_Pos) 
#define ADC_RESOLUTION_8B (0x02U << ADC_CR1_RES_Pos)  
#define ADC_RESOLUTION_6B (0x03U << ADC_CR1_RES_Pos)  
#define ADC_EOC_INTERRUPT_ENABLE (0x01U << ADC_CR1_EOCIE_Pos) 
/* Function prototypes and explanation -------------------------------------------------*/
 
size_t port_system_init(void);
 
uint32_t port_system_get_millis(void);
 
void port_system_set_millis(uint32_t ms);
 
void port_system_delay_ms(uint32_t ms);
 
void port_system_delay_until_ms(uint32_t *p_t, uint32_t ms);
 
void port_system_gpio_config(GPIO_TypeDef *p_port, uint8_t pin, uint8_t mode, uint8_t pupd);
 
void port_system_gpio_config_alternate(GPIO_TypeDef *p_port, uint8_t pin, uint8_t alternate);
 
void port_system_gpio_config_exti(GPIO_TypeDef *p_port, uint8_t pin, uint32_t mode);
 
void port_system_gpio_exti_enable(uint8_t pin, uint8_t priority, uint8_t subpriority);
 
void port_system_gpio_exti_disable(uint8_t pin);
 
void port_system_adc_single_ch_init(ADC_TypeDef *p_adc, uint8_t channel, uint32_t cr_mode);
 
void port_system_adc_interrupt_enable(uint8_t priority, uint8_t subpriority);
 
void port_system_adc_enable(ADC_TypeDef *p_adc);
 
void port_system_adc_disable(ADC_TypeDef *p_adc);
 
void port_system_adc_start_conversion(ADC_TypeDef *p_adc, uint8_t channel);
 
#endif /* PORT_SYSTEM_H_ */