erkin yucel / mbed-os

mbed os with nrf51 internal bandgap enabled to read battery level

Dependents:   BLE_file_test BLE_Blink ExternalEncoder

targets/TARGET_NUVOTON/nu_bitutil.h@0:f269e3021894, 2016-10-23 (annotated)

Committer:
elessair
Date:
Sun Oct 23 15:10:02 2016 +0000
Revision:
0:f269e3021894
Initial commit

Who changed what in which revision?

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elessair 0:f269e3021894 1 /* mbed Microcontroller Library
elessair 0:f269e3021894 2 * Copyright (c) 2015-2016 Nuvoton
elessair 0:f269e3021894 3 *
elessair 0:f269e3021894 4 * Licensed under the Apache License, Version 2.0 (the "License");
elessair 0:f269e3021894 5 * you may not use this file except in compliance with the License.
elessair 0:f269e3021894 6 * You may obtain a copy of the License at
elessair 0:f269e3021894 7 *
elessair 0:f269e3021894 8 * http://www.apache.org/licenses/LICENSE-2.0
elessair 0:f269e3021894 9 *
elessair 0:f269e3021894 10 * Unless required by applicable law or agreed to in writing, software
elessair 0:f269e3021894 11 * distributed under the License is distributed on an "AS IS" BASIS,
elessair 0:f269e3021894 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
elessair 0:f269e3021894 13 * See the License for the specific language governing permissions and
elessair 0:f269e3021894 14 * limitations under the License.
elessair 0:f269e3021894 15 */
elessair 0:f269e3021894 16
elessair 0:f269e3021894 17 #ifndef NU_BIT_UTIL_H
elessair 0:f269e3021894 18 #define NU_BIT_UTIL_H
elessair 0:f269e3021894 19
elessair 0:f269e3021894 20 #include "cmsis.h"
elessair 0:f269e3021894 21
elessair 0:f269e3021894 22 #ifdef __cplusplus
elessair 0:f269e3021894 23 extern "C" {
elessair 0:f269e3021894 24 #endif
elessair 0:f269e3021894 25
elessair 0:f269e3021894 26 __STATIC_INLINE int nu_clz(uint32_t x)
elessair 0:f269e3021894 27 {
elessair 0:f269e3021894 28 return __CLZ(x);
elessair 0:f269e3021894 29 }
elessair 0:f269e3021894 30
elessair 0:f269e3021894 31 __STATIC_INLINE int nu_clo(uint32_t x)
elessair 0:f269e3021894 32 {
elessair 0:f269e3021894 33 return nu_clz(~x);
elessair 0:f269e3021894 34 }
elessair 0:f269e3021894 35
elessair 0:f269e3021894 36 __STATIC_INLINE int nu_ctz(uint32_t x)
elessair 0:f269e3021894 37 {
elessair 0:f269e3021894 38 int c = __CLZ(x & -x);
elessair 0:f269e3021894 39 return x ? 31 - c : c;
elessair 0:f269e3021894 40 }
elessair 0:f269e3021894 41
elessair 0:f269e3021894 42 __STATIC_INLINE int nu_cto(uint32_t x)
elessair 0:f269e3021894 43 {
elessair 0:f269e3021894 44 return nu_ctz(~x);
elessair 0:f269e3021894 45 }
elessair 0:f269e3021894 46
elessair 0:f269e3021894 47
elessair 0:f269e3021894 48 __STATIC_INLINE uint16_t nu_get16_le(const uint8_t *pos)
elessair 0:f269e3021894 49 {
elessair 0:f269e3021894 50 uint16_t val;
elessair 0:f269e3021894 51
elessair 0:f269e3021894 52 val = *pos ++;
elessair 0:f269e3021894 53 val += (*pos << 8);
elessair 0:f269e3021894 54
elessair 0:f269e3021894 55 return val;
elessair 0:f269e3021894 56 }
elessair 0:f269e3021894 57
elessair 0:f269e3021894 58 __STATIC_INLINE void nu_set16_le(uint8_t *pos, uint16_t val)
elessair 0:f269e3021894 59 {
elessair 0:f269e3021894 60 *pos ++ = val & 0xFF;
elessair 0:f269e3021894 61 *pos = val >> 8;
elessair 0:f269e3021894 62 }
elessair 0:f269e3021894 63
elessair 0:f269e3021894 64 __STATIC_INLINE uint32_t nu_get32_le(const uint8_t *pos)
elessair 0:f269e3021894 65 {
elessair 0:f269e3021894 66 uint32_t val;
elessair 0:f269e3021894 67
elessair 0:f269e3021894 68 val = *pos ++;
elessair 0:f269e3021894 69 val += (*pos ++ << 8);
elessair 0:f269e3021894 70 val += (*pos ++ << 16);
elessair 0:f269e3021894 71 val += (*pos ++ << 24);
elessair 0:f269e3021894 72
elessair 0:f269e3021894 73 return val;
elessair 0:f269e3021894 74 }
elessair 0:f269e3021894 75
elessair 0:f269e3021894 76 __STATIC_INLINE void nu_set32_le(uint8_t *pos, uint32_t val)
elessair 0:f269e3021894 77 {
elessair 0:f269e3021894 78 *pos ++ = val & 0xFF;
elessair 0:f269e3021894 79 *pos ++ = (val >> 8) & 0xFF;
elessair 0:f269e3021894 80 *pos ++ = (val >> 16) & 0xFF;
elessair 0:f269e3021894 81 *pos = (val >> 24) & 0xFF;
elessair 0:f269e3021894 82 }
elessair 0:f269e3021894 83
elessair 0:f269e3021894 84 __STATIC_INLINE uint16_t nu_get16_be(const uint8_t *pos)
elessair 0:f269e3021894 85 {
elessair 0:f269e3021894 86 uint16_t val;
elessair 0:f269e3021894 87
elessair 0:f269e3021894 88 val = *pos ++;
elessair 0:f269e3021894 89 val <<= 8;
elessair 0:f269e3021894 90 val += *pos;
elessair 0:f269e3021894 91
elessair 0:f269e3021894 92 return val;
elessair 0:f269e3021894 93 }
elessair 0:f269e3021894 94
elessair 0:f269e3021894 95 __STATIC_INLINE void nu_set16_be(uint8_t *pos, uint16_t val)
elessair 0:f269e3021894 96 {
elessair 0:f269e3021894 97 *pos ++ = val >> 8;
elessair 0:f269e3021894 98 *pos = (val & 0xFF);
elessair 0:f269e3021894 99 }
elessair 0:f269e3021894 100
elessair 0:f269e3021894 101 __STATIC_INLINE uint32_t nu_get32_be(const uint8_t *pos)
elessair 0:f269e3021894 102 {
elessair 0:f269e3021894 103 uint32_t val;
elessair 0:f269e3021894 104
elessair 0:f269e3021894 105 val = *pos ++;
elessair 0:f269e3021894 106 val <<= 8;
elessair 0:f269e3021894 107 val += *pos ++;
elessair 0:f269e3021894 108 val <<= 8;
elessair 0:f269e3021894 109 val += *pos ++;
elessair 0:f269e3021894 110 val <<= 8;
elessair 0:f269e3021894 111 val += *pos;
elessair 0:f269e3021894 112
elessair 0:f269e3021894 113 return val;
elessair 0:f269e3021894 114 }
elessair 0:f269e3021894 115
elessair 0:f269e3021894 116 __STATIC_INLINE void nu_set32_be(uint8_t *pos, uint32_t val)
elessair 0:f269e3021894 117 {
elessair 0:f269e3021894 118 *pos ++ = val >> 24;
elessair 0:f269e3021894 119 *pos ++ = val >> 16;
elessair 0:f269e3021894 120 *pos ++ = val >> 8;
elessair 0:f269e3021894 121 *pos ++ = (val & 0xFF);
elessair 0:f269e3021894 122 }
elessair 0:f269e3021894 123
elessair 0:f269e3021894 124 #ifdef __cplusplus
elessair 0:f269e3021894 125 }
elessair 0:f269e3021894 126 #endif
elessair 0:f269e3021894 127
elessair 0:f269e3021894 128 #endif