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use documents globals

This commit is contained in:
King Kévin 2016-08-14 20:30:16 +02:00
parent 51330747e2
commit 5b68c5701e
1 changed files with 60 additions and 29 deletions
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global.h
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@ -12,52 +12,83 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>. * along with this program. If not, see <http://www.gnu.org/licenses/>.
* *
*/ */
/* Copyright (c) 2016 King Kévin <kingkevin@cuvoodoo.info> */ /** global definitions and methods
* @file global.h
* @author King Kévin <kingkevin@cuvoodoo.info>
* @date 2016
*/
#pragma once #pragma once
#include <libopencm3/stm32/gpio.h> // GPIO defines #include <libopencm3/stm32/gpio.h> // GPIO defines
#include <libopencm3/cm3/nvic.h> // interrupt defines #include <libopencm3/cm3/nvic.h> // interrupt defines
#include <libopencm3/stm32/exti.h> // external interrupt defines #include <libopencm3/stm32/exti.h> // external interrupt defines
/* get the length of an array */ /** get the length of an array */
#define LENGTH(x) (sizeof(x) / sizeof((x)[0])) #define LENGTH(x) (sizeof(x) / sizeof((x)[0]))
/* LED pin */ /** @defgroup board_led board LED GPIO
* @{
*/
#if defined(SYSTEM_BOARD) #if defined(SYSTEM_BOARD)
/* on system board LED is on pin 11/PA1 */ /* on system board LED is on pin 11/PA1 */
#define LED_RCC RCC_GPIOA #define LED_RCC RCC_GPIOA /**< GPIO peripheral clock (port A on system board) */
#define LED_PORT GPIOA #define LED_PORT GPIOA /**< GPIO port (port A on system board) */
#define LED_PIN GPIO1 #define LED_PIN GPIO1 /**< GPIO pin (pin PA1 on system board) */
#elif defined(BLUE_PILL) #elif defined(BLUE_PILL)
/* on minimum system LED is on pin 2/PC13 */ /* on minimum system LED is on pin 2/PC13 */
#define LED_RCC RCC_GPIOC #define LED_RCC RCC_GPIOC /**< GPIO peripheral clock (port C on blue pill) */
#define LED_PORT GPIOC #define LED_PORT GPIOC /**< GPIO port (port C on blue pill) */
#define LED_PIN GPIO13 #define LED_PIN GPIO13 /**< GPIO pin (pin PC13 on system board) */
#elif defined (MAPLE_MINI) #elif defined (MAPLE_MINI)
/* on maple mini LED is on pin 19/PB1 */ /* on maple mini LED is on pin 19/PB1 */
#define LED_RCC RCC_GPIOB #define LED_RCC RCC_GPIOB /**< GPIO peripheral clock (port B on maple mini) */
#define LED_PORT GPIOB #define LED_PORT GPIOB /**< GPIO port (port B on maple mini) */
#define LED_PIN GPIO1 #define LED_PIN GPIO1 /**< GPIO pin (pin PB1 on maple mini) */
#endif #endif
/** @} */
/* user button */ /** @defgroup board_button board user button GPIO
* @{
*/
#if defined(MAPLE_MINI) #if defined(MAPLE_MINI)
/* on maple mini button is on 32/PB8 */ /* on maple mini user button is on 32/PB8 */
#define BUTTON_RCC RCC_GPIOB #define BUTTON_RCC RCC_GPIOB /**< GPIO peripheral clock */
#define BUTTON_PORT GPIOB #define BUTTON_PORT GPIOB /**< GPIO port */
#define BUTTON_PIN GPIO8 #define BUTTON_PIN GPIO8 /**< GPIO pin */
#define BUTTON_EXTI EXTI8 #define BUTTON_EXTI EXTI8 /**< GPIO external interrupt */
#define BUTTON_IRQ NVIC_EXTI9_5_IRQ #define BUTTON_IRQ NVIC_EXTI9_5_IRQ /**< GPIO line interrupt (interrupt for line 9 to 5 for pin) */
#define BUTTON_ISR exti9_5_isr #define BUTTON_ISR exti9_5_isr /**< GPIO line interrupt service routine (isr for line 9 to 5 for pin 8) */
#endif #endif
/** @} */
/* switch on LED */ /** switch on board LED */
void led_on(void); inline void led_on(void)
/* switch off LED */ {
void led_off(void); #if defined(SYSTEM_BOARD) || defined(BLUE_PILL)
/* toggle LED */ gpio_clear(LED_PORT, LED_PIN);
void led_toggle(void); #elif defined(MAPLE_MINI)
/* default output (i.e. for printf) */ gpio_set(LED_PORT, LED_PIN);
#endif
}
/** switch off board LED */
inline void led_off(void)
{
#if defined(SYSTEM_BOARD) || defined(BLUE_PILL)
gpio_set(LED_PORT, LED_PIN);
#elif defined(MAPLE_MINI)
gpio_clear(LED_PORT, LED_PIN);
#endif
}
/** toggle board LED */
inline void led_toggle(void)
{
gpio_toggle(LED_PORT, LED_PIN);
}
/** default printf output */
int _write(int file, char *ptr, int len); int _write(int file, char *ptr, int len);
/* print binary as string */ /** get binary representation of a number
char* b2s(uint32_t binary, uint8_t rjust); * @param[in] binary number to represent in binary
* @param[in] rjust justify representation with leading zeros
* @return string with binary representation of the number
*/
char* b2s(uint64_t binary, uint8_t rjust);