Zephyr API Documentation 4.1.99
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 4.1.99
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stm32f1_clock.h
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1/*
2 * Copyright (c) 2022 Linaro Limited
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_CLOCK_STM32F1_CLOCK_H_
7#define ZEPHYR_INCLUDE_DT_BINDINGS_CLOCK_STM32F1_CLOCK_H_
8
10
14#define STM32_CLOCK_BUS_AHB1 0x014
15#define STM32_CLOCK_BUS_APB2 0x018
16#define STM32_CLOCK_BUS_APB1 0x01c
17
18#define STM32_PERIPH_BUS_MIN STM32_CLOCK_BUS_AHB1
19#define STM32_PERIPH_BUS_MAX STM32_CLOCK_BUS_APB1
20
22/* defined in stm32_common_clocks.h */
23
25/* Low speed clocks defined in stm32_common_clocks.h */
26#define STM32_SRC_HSI (STM32_SRC_LSI + 1)
27#define STM32_SRC_HSE (STM32_SRC_HSI + 1)
28#define STM32_SRC_EXT_HSE (STM32_SRC_HSE + 1)
29#define STM32_SRC_PLLCLK (STM32_SRC_EXT_HSE + 1)
30
32#define CFGR1_REG 0x04
33#define CFGR2_REG 0x2C
34
36#define BDCR_REG 0x20
37
40#define I2S2_SEL(val) STM32_DT_CLOCK_SELECT((val), 1, 17, CFGR2_REG)
41#define I2S3_SEL(val) STM32_DT_CLOCK_SELECT((val), 1, 18, CFGR2_REG)
43#define RTC_SEL(val) STM32_DT_CLOCK_SELECT((val), 3, 8, BDCR_REG)
44
46#define MCO1_SEL(val) STM32_DT_CLOCK_SELECT((val), 0x7, 24, CFGR1_REG)
47/* No MCO prescaler support on STM32F1 series. */
48
49#endif /* ZEPHYR_INCLUDE_DT_BINDINGS_CLOCK_STM32F1_CLOCK_H_ */