paolo della vedova / FastIO

Replacement for regular GPIO (DigitalIn, DigitalOut, DigitalInOut) classes which has superior speed. (modified for use opendrain in stm32)

Dependents:   hctl2032_encoder

Fork of FastIO by Erik -

Devices/FastIO_NUCLEO_F401.h

Committer:
Sissors
Date:
2014-07-16
Revision:
4:6ebbf25b9167
Child:
5:3dd1ab9bbc59

File content as of revision 4:6ebbf25b9167:

#ifdef TARGET_NUCLEO_F401RE

#include "mbed.h"
#include "pinmap.h"

typedef struct {
    uint32_t mask;
} fastio_vars;

#define PINMASK             (1 << STM_PIN(pin))
#define PORT                ((GPIO_TypeDef *)(GPIOA_BASE + 0x0400 * STM_PORT(pin)))

#define INIT_PIN            RCC->AHB1ENR |= (1 << STM_PORT(pin)); container.mask = PINMASK
#define DESTROY_PIN     

#define SET_DIR_INPUT       (PORT->MODER &= ~(GPIO_MODER_MODER0 << (STM_PIN(pin) * 2)))
#define SET_DIR_OUTPUT      (PORT->MODER |= (GPIO_MODER_MODER0_0 << (STM_PIN(pin) * 2)))
#define SET_MODE(pull)      pin_mode(pin, pull);

#define WRITE_PIN_SET       (PORT->BSRRL = PINMASK)
#define WRITE_PIN_CLR       (PORT->BSRRH = PINMASK)

#define READ_PIN            ((PORT->IDR & container.mask) ? 1 : 0)

#endif