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-rw-r--r--src/lib/systick.h62
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diff --git a/src/lib/systick.h b/src/lib/systick.h
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--- a/src/lib/systick.h
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-/* *****************************************************************************
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- * Created: 12/18/09 02:37:37
- * Copyright (c) 2009 Perry L. Hung. All rights reserved.
- *
- * ****************************************************************************/
-
-/**
- * @file systick.h
- *
- * @brief Various system timer definitions
- */
-
-#ifndef _SYSTICK_H_
-#define _SYSTICK_H_
-
-#include "libmaple.h"
-
-/* To the ARM technical manual... there's nearly nothing on the systick
- * timer in the stm32 manual */
-
-#define SYSTICK_CSR 0xE000E010 // Control and status register
-#define SYSTICK_RELOAD 0xE000E014 // Reload value register
-#define SYSTICK_CNT 0xE000E018 // Current value register
-#define SYSTICK_CALIB 0xE000E01C // Calibration value register
-
-#define SYSTICK_SRC_HCLK BIT(2) // Use core clock
-#define SYSTICK_TICKINT BIT(1) // Interrupt on systick countdown
-#define SYSTICK_ENABLE BIT(0) // Turn on the counter
-
-/* We use the systick timer to tick once
- * every millisecond */
-#define MAPLE_RELOAD_VAL 72000
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-void systick_init(void);
-
-static inline uint32_t systick_get_count(void) {
- return (uint32_t)*(volatile uint32*)SYSTICK_CNT;
-}
-
-#ifdef __cplusplus
-} // extern "C"
-#endif
-
-#endif
-