Mateusz Grzywacz
/
FastIO
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Devices/FastIO_STM32F4.h@13:0e21ffc6cb84, 2015-05-17 (annotated)
- Committer:
- Sissors
- Date:
- Sun May 17 10:48:26 2015 +0000
- Revision:
- 13:0e21ffc6cb84
- Child:
- 14:f0a48027b2b3
Generalized it to all STMF4 platforms. (Holy crap the F407 is fast)
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| Sissors | 13:0e21ffc6cb84 | 1 | #if defined(TARGET_STM32F4) |
| Sissors | 13:0e21ffc6cb84 | 2 | |
| Sissors | 13:0e21ffc6cb84 | 3 | #include "mbed.h" |
| Sissors | 13:0e21ffc6cb84 | 4 | #include "pinmap.h" |
| Sissors | 13:0e21ffc6cb84 | 5 | |
| Sissors | 13:0e21ffc6cb84 | 6 | typedef struct { |
| Sissors | 13:0e21ffc6cb84 | 7 | uint32_t mask; |
| Sissors | 13:0e21ffc6cb84 | 8 | } fastio_vars; |
| Sissors | 13:0e21ffc6cb84 | 9 | |
| Sissors | 13:0e21ffc6cb84 | 10 | #define PINMASK (1 << STM_PIN(pin)) |
| Sissors | 13:0e21ffc6cb84 | 11 | #define PORT ((GPIO_TypeDef *)(GPIOA_BASE + 0x0400 * STM_PORT(pin))) |
| Sissors | 13:0e21ffc6cb84 | 12 | |
| Sissors | 13:0e21ffc6cb84 | 13 | #define INIT_PIN RCC->AHB1ENR |= (1 << STM_PORT(pin)); (PORT->MODER &= ~(GPIO_MODER_MODER0_1 << (STM_PIN(pin) * 2))); container.mask = PINMASK |
| Sissors | 13:0e21ffc6cb84 | 14 | #define DESTROY_PIN |
| Sissors | 13:0e21ffc6cb84 | 15 | |
| Sissors | 13:0e21ffc6cb84 | 16 | #define SET_DIR_INPUT (PORT->MODER &= ~(GPIO_MODER_MODER0_0 << (STM_PIN(pin) * 2))) |
| Sissors | 13:0e21ffc6cb84 | 17 | #define SET_DIR_OUTPUT (PORT->MODER |= (GPIO_MODER_MODER0_0 << (STM_PIN(pin) * 2))) |
| Sissors | 13:0e21ffc6cb84 | 18 | #define SET_MODE(pull) pin_mode(pin, pull); |
| Sissors | 13:0e21ffc6cb84 | 19 | |
| Sissors | 13:0e21ffc6cb84 | 20 | #define WRITE_PIN_SET (PORT->BSRRL = PINMASK) |
| Sissors | 13:0e21ffc6cb84 | 21 | #define WRITE_PIN_CLR (PORT->BSRRH = PINMASK) |
| Sissors | 13:0e21ffc6cb84 | 22 | |
| Sissors | 13:0e21ffc6cb84 | 23 | #define READ_PIN ((PORT->IDR & container.mask) ? 1 : 0) |
| Sissors | 13:0e21ffc6cb84 | 24 | |
| Sissors | 13:0e21ffc6cb84 | 25 | #endif |