circuitpython/stmhal/mphalport.h
Tobias Badertscher dda1a41205 stmhal: L4: Modify mphalport to support L4 MCU.
__GPIOI_CLK_ENABLE is defined in hal/l4/inc/Legacy/stm32_hal_legacy.h
as __HAL_RCC_GPIOI_CLK_ENABLE, and that latter macro is not defined
anywhere else (because the L4 does not have port GPIOI).  So the test
for GPIOI is needed, along with the test for the CLK_ENABLE macro.
2016-04-21 12:23:28 +01:00

52 lines
2.0 KiB
C

// We use the ST Cube HAL library for most hardware peripherals
#include STM32_HAL_H
#include "pin.h"
// The unique id address differs per MCU. Ideally this define should
// go in some MCU-specific header, but for now it lives here.
#if defined(MCU_SERIES_F4)
#define MP_HAL_UNIQUE_ID_ADDRESS (0x1fff7a10)
#elif defined(MCU_SERIES_F7)
#define MP_HAL_UNIQUE_ID_ADDRESS (0x1ff0f420)
#elif defined(MCU_SERIES_L4)
#define MP_HAL_UNIQUE_ID_ADDRESS (0x1fff7590)
#else
#error mphalport.h: Unrecognized MCU_SERIES
#endif
// Basic GPIO functions
#define GPIO_read_pin(gpio, pin) (((gpio)->IDR >> (pin)) & 1)
#if defined(MCU_SERIES_F7) || defined(MCU_SERIES_L4)
#define GPIO_set_pin(gpio, pin_mask) (((gpio)->BSRR) = (pin_mask))
#define GPIO_clear_pin(gpio, pin_mask) (((gpio)->BSRR) = ((pin_mask) << 16))
#else
#define GPIO_set_pin(gpio, pin_mask) (((gpio)->BSRRL) = (pin_mask))
#define GPIO_clear_pin(gpio, pin_mask) (((gpio)->BSRRH) = (pin_mask))
#endif
#define GPIO_read_output_pin(gpio, pin) (((gpio)->ODR >> (pin)) & 1)
void mp_hal_gpio_clock_enable(GPIO_TypeDef *gpio);
void mp_hal_gpio_config(GPIO_TypeDef *gpio, uint32_t pin, uint32_t mode, uint32_t pull, uint32_t alt);
bool mp_hal_gpio_set_af(const pin_obj_t *pin, GPIO_InitTypeDef *init, uint8_t fn, uint8_t unit);
extern const unsigned char mp_hal_status_to_errno_table[4];
NORETURN void mp_hal_raise(HAL_StatusTypeDef status);
void mp_hal_set_interrupt_char(int c); // -1 to disable
#define mp_hal_delay_ms HAL_Delay
#define mp_hal_ticks_ms HAL_GetTick
// needed for machine.I2C
#include "stmhal/systick.h"
#define mp_hal_delay_us_fast(us) sys_tick_udelay(us)
// C-level pin HAL
#include "stmhal/pin.h"
#define mp_hal_pin_obj_t pin_obj_t
#define mp_hal_get_pin_obj(o) (pin_obj_t*)pin_find(o)
#define mp_hal_pin_config_od(p) mp_hal_gpio_config((p)->gpio, (p)->pin, 5, 0, 0)
#define mp_hal_pin_low(p) GPIO_clear_pin((p)->gpio, (p)->pin_mask)
#define mp_hal_pin_od_high(p) GPIO_set_pin((p)->gpio, (p)->pin_mask)
#define mp_hal_pin_read(p) GPIO_read_pin((p)->gpio, (p)->pin)