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_F030.h@9:6e0f24f71081, 2014-09-05 (annotated)

Committer:
c128
Date:
Fri Sep 05 04:48:50 2014 +0000
Revision:
9:6e0f24f71081
Parent:
7:1e784ae11fba 
changes to make opendrain working in stm32

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Sissors 6:da3730030c07 1 #ifdef TARGET_NUCLEO_F030R8
Sissors 6:da3730030c07 2
Sissors 6:da3730030c07 3 #include "mbed.h"
Sissors 6:da3730030c07 4 #include "pinmap.h"
Sissors 6:da3730030c07 5
Sissors 6:da3730030c07 6 typedef struct {
Sissors 6:da3730030c07 7 uint32_t mask;
Sissors 6:da3730030c07 8 } fastio_vars;
Sissors 6:da3730030c07 9
Sissors 6:da3730030c07 10 #define PINMASK (1 << STM_PIN(pin))
Sissors 6:da3730030c07 11 #define PORT ((GPIO_TypeDef *)(GPIOA_BASE + 0x0400 * STM_PORT(pin)))
Sissors 6:da3730030c07 12
Sissors 6:da3730030c07 13 #define INIT_PIN RCC->AHBENR |= (1 << STM_PORT(pin)); (PORT->MODER &= ~(GPIO_MODER_MODER0_1 << (STM_PIN(pin) * 2))); container.mask = PINMASK
Sissors 6:da3730030c07 14 #define DESTROY_PIN
Sissors 6:da3730030c07 15
Sissors 7:1e784ae11fba 16 #define SET_DIR_INPUT (PORT->MODER &= ~(GPIO_MODER_MODER0_0 << (STM_PIN(pin) * 2)))
Sissors 6:da3730030c07 17 #define SET_DIR_OUTPUT (PORT->MODER |= (GPIO_MODER_MODER0_0 << (STM_PIN(pin) * 2)))
Sissors 6:da3730030c07 18 #define SET_MODE(pull) pin_mode(pin, pull);
Sissors 6:da3730030c07 19
Sissors 6:da3730030c07 20 #define WRITE_PIN_SET (PORT->BSRR = PINMASK)
Sissors 6:da3730030c07 21 #define WRITE_PIN_CLR (PORT->BRR = PINMASK)
Sissors 6:da3730030c07 22
Sissors 6:da3730030c07 23 #define READ_PIN ((PORT->IDR & container.mask) ? 1 : 0)
Sissors 6:da3730030c07 24
Sissors 6:da3730030c07 25 #endif