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- /*
- * This file is part of the MicroPython project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2015 Daniel Campora
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
- #include <stdint.h>
- #include <stdbool.h>
- #include "hal/utils.h"
- #include "hal/systick.h"
- /******************************************************************************
- DEFINE CONSTANTS
- ******************************************************************************/
- #define HAL_FCPU_MHZ 80U
- #define HAL_FCPU_HZ (1000000U * HAL_FCPU_MHZ)
- #define HAL_SYSTICK_PERIOD_US 1000U
- #define UTILS_DELAY_US_TO_COUNT(us) (((us) * HAL_FCPU_MHZ) / 6)
- #define HAL_NVIC_INT_CTRL_REG (*((volatile uint32_t *) 0xE000ED04 ) )
- #define HAL_VECTACTIVE_MASK (0x1FUL)
- /******************************************************************************
- DEFINE TYPES
- ******************************************************************************/
- /******************************************************************************
- DEFINE FUNCTION-LIKE MACROS
- ******************************************************************************/
- #define HAL_INTRODUCE_SYNC_BARRIER() { \
- __asm(" dsb \n" \
- " isb \n"); \
- }
- /******************************************************************************
- DECLARE PUBLIC FUNCTIONS
- ******************************************************************************/
- extern void HAL_SystemInit (void);
- extern void HAL_SystemDeInit (void);
- extern void HAL_IncrementTick(void);
- extern void mp_hal_set_interrupt_char (int c);
- #define mp_hal_delay_us(usec) UtilsDelay(UTILS_DELAY_US_TO_COUNT(usec))
- #define mp_hal_ticks_cpu() (SysTickPeriodGet() - SysTickValueGet())
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