69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
/* Reflow Oven Controller
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*
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* Copyright (C) 2020 Mario Hüttel <mario.huettel@gmx.net>
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*
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* This file is part of the Reflow Oven Controller Project.
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*
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* The reflow oven controller is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* GDSII-Converter is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with the reflow oven controller project.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file systick.h
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*/
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#ifndef __SYSTICK_H__
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#define __SYSTICK_H__
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#include <stdint.h>
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/**
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* @brief Reload value for the systick timer.
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*
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* This value has to be configured to set the systick to a one milliscond tick interval
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* The default value is 168000, which results in a 1ms tick for 168 MHz CPU speed
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*/
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#define SYSTICK_RELOAD (168000UL)
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/**
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* @brief Variable used by the systick_wait_ms function
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*/
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extern volatile uint32_t wait_tick_ms;
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/**
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* @brief Systemclock in milliseconds.
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*
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* This value must not be reset during the whole runtime.
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*
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*/
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extern volatile uint64_t global_tick_ms;
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/**
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* @brief Setup the Systick timer to generate a 1 ms tick
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*/
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void systick_setup(void);
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/**
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* @brief Wait for x milliseconds
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*
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* This function is not reentrant and must not be called from an interrupt
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*
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* @warning Do not use in interrupt context
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* @param ms wait time in ms
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*/
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void systick_wait_ms(uint32_t ms);
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uint64_t systick_get_global_tick();
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#endif /* __SYSTICK_H__ */
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