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periph_common_conf.h
Go to the documentation of this file.
1/*
2 * Copyright (C) 2020 Koen Zandberg <koen@bergzand.net>
3 * 2023 Gunar Schorcht <gunar@schorcht.net>
4 *
5 * This file is subject to the terms and conditions of the GNU Lesser
6 * General Public License v2.1. See the file LICENSE in the top level
7 * directory for more details.
8 */
9
21#ifndef PERIPH_COMMON_CONF_H
22#define PERIPH_COMMON_CONF_H
23
24#include "macros/units.h"
25#include "periph_cpu.h"
26
27#ifdef __cplusplus
28extern "C" {
29#endif
30
31#if defined(MODULE_USBDEV_SYNOPSYS_DWC2) || defined(MODULE_TINYUSB_DEVICE)
32/* If the USB OTG peripheral is used, the USB clock of 48 MHz is derived by
33 * dividing the PLL clock by 1, 1.5, 2, or 2.5. That is the maximum core clock
34 * frequency can be 96 MHz. */
35#define CLOCK_CORECLOCK MHZ(96)
36#else
37#define CLOCK_CORECLOCK MHZ(108)
38#endif
39
40#define CLOCK_AHB CLOCK_CORECLOCK
41#define CLOCK_APB1 CLOCK_AHB/2
42#define CLOCK_APB2 CLOCK_AHB
48#if CONFIG_BOARD_HAS_LXTAL
49#define RTT_CLOCK_FREQUENCY (32768U)
50#else
51#define RTT_CLOCK_FREQUENCY (40000U)
52#endif
53
54#define RTT_MAX_FREQUENCY (RTT_CLOCK_FREQUENCY) /* maximum RTT frequency in Hz */
55
56#ifndef RTT_FREQUENCY
57#define RTT_FREQUENCY (RTT_MAX_FREQUENCY) /* RTT frequency in Hz */
58#endif
61#ifdef __cplusplus
62}
63#endif
64
65#endif /* PERIPH_COMMON_CONF_H */
units.h
Unit helper macros.