76 lines
2.6 KiB
C
76 lines
2.6 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2018 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef MICROPY_INCLUDED_ATMEL_SAMD_CLOCKS_H
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#define MICROPY_INCLUDED_ATMEL_SAMD_CLOCKS_H
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#include <stdbool.h>
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#include <stdint.h>
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#include "include/sam.h"
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#include "mpconfigboard.h" // for BOARD_HAS_CRYSTAL
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#ifdef SAMD51
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#define CLOCK_48MHZ GCLK_GENCTRL_SRC_DFLL_Val
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#endif
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#ifdef SAMD21
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#define CLOCK_48MHZ GCLK_GENCTRL_SRC_DFLL48M_Val
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#endif
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#define CORE_GCLK 0
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uint8_t find_free_gclk(uint16_t divisor);
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bool gclk_enabled(uint8_t gclk);
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void disable_gclk(uint8_t gclk);
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void reset_gclks(void);
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void connect_gclk_to_peripheral(uint8_t gclk, uint8_t peripheral);
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void disconnect_gclk_from_peripheral(uint8_t gclk, uint8_t peripheral);
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void enable_clock_generator(uint8_t gclk, uint32_t source, uint16_t divisor);
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void disable_clock_generator(uint8_t gclk);
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static inline bool board_has_crystal(void) {
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#ifdef BOARD_HAS_CRYSTAL
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return BOARD_HAS_CRYSTAL == 1;
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#else
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return false;
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#endif
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}
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void clock_init(void);
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void init_dynamic_clocks(void);
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bool clock_get_enabled(uint8_t type, uint8_t index);
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bool clock_get_parent(uint8_t type, uint8_t index, uint8_t *p_type, uint8_t *p_index);
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uint32_t clock_get_frequency(uint8_t type, uint8_t index);
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uint32_t clock_get_calibration(uint8_t type, uint8_t index);
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int clock_set_calibration(uint8_t type, uint8_t index, uint32_t val);
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void save_usb_clock_calibration(void);
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#endif // MICROPY_INCLUDED_ATMEL_SAMD_CLOCKS_H
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