OpenRTX/platform/mcu/STM32F4xx/drivers/rcc.h

55 lines
1.9 KiB
C

/***************************************************************************
* Copyright (C) 2024 by Federico Amedeo Izzo IU2NUO, *
* Niccolò Izzo IU2KIN *
* Frederik Saraci IU2NRO *
* Silvano Seva IU2KWO *
* *
* 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/> *
***************************************************************************/
#ifndef RCC_H
#define RCC_H
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* Enumeration type for STM32 internal busses.
*/
enum PeriphBus
{
PERIPH_BUS_AHB = 0,
PERIPH_BUS_APB1 = 1,
PERIPH_BUS_APB2 = 2,
PERIPH_BUS_NUM
};
/**
* Get the clock frequency of a given peripheral bus.
*
* @param bus: bus identifier.
* @return bus clock frequency in Hz or zero in case of errors.
*/
uint32_t rcc_getBusClock(const uint8_t bus);
#ifdef __cplusplus
}
#endif
#endif /* RCC_H */