cfg_clk_default.h
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1 /*
2  * SPDX-FileCopyrightText: 2014-2016 Freie Universität Berlin
3  * SPDX-FileCopyrightText: 2015 Zolertia SL
4  * SPDX-FileCopyrightText: 2020 Inria
5  * SPDX-License-Identifier: LGPL-2.1-only
6  */
7 
8 #pragma once
9 
23 #include <stdint.h>
24 
25 #include "cpu.h"
26 #include "periph_cpu.h"
27 
28 #ifdef __cplusplus
29 extern "C" {
30 #endif
31 
37 /*
38  * 0: use internal 32KHz RCOSC
39  * 1: use external 32KHz XOSC
40  */
41 #ifndef SYS_CTRL_OSC32K_USE_XTAL
42 #define SYS_CTRL_OSC32K_USE_XTAL (1)
43 #endif
44 /*
45  * 0: use internal 16MHz RCOSC
46  * 1: use external 32MHz XOSC, required for RF operation
47  */
48 #ifndef SYS_CTRL_OSC_USE_XTAL
49 #define SYS_CTRL_OSC_USE_XTAL (1)
50 #endif
51 
52 #if SYS_CTRL_OSC_USE_XTAL
53 #define CLOCK_OSC (XOSC32M_FREQ)
54 #else
55 #define CLOCK_OSC (RCOSC16M_FREQ)
56 #endif
57 
58 #if SYS_CTRL_OSC32K_USE_XTAL
59 #define CLOCK_OSC32K (XOSC32K_FREQ) /* XCOSC frequency */
60 #else
61 #define CLOCK_OSC32K (RCOSC32K_FREQ) /* XCOSC frequency */
62 #endif
63 
64 /* System clock frequency 32MHz */
65 #ifndef CLOCK_CORECLOCK
66 #define CLOCK_CORECLOCK (CLOCK_OSC)
67 #endif
68 /* I/O clock rate setting 16MHz */
69 #ifndef CLOCK_IO
70 #define CLOCK_IO (CLOCK_OSC / 2)
71 #endif
74 #ifdef __cplusplus
75 }
76 #endif
77