/ Nucleo_BLE_BlueNRG

BLE UART example

Fork of Nucleo_BLE_BlueNRG by ST Americas mbed Team

utils/src/Utils.cpp@3:104f1bba39ca, 2016-01-03 (annotated)

Committer:
sjallouli
Date:
Sun Jan 03 16:05:38 2016 +0000
Revision:
3:104f1bba39ca
Parent:
0:a948f5f3904c 
test

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sjallouli 0:a948f5f3904c 1 /* mbed Microcontroller Library
sjallouli 0:a948f5f3904c 2 * Copyright (c) 2006-2013 ARM Limited
sjallouli 0:a948f5f3904c 3 *
sjallouli 0:a948f5f3904c 4 * Licensed under the Apache License, Version 2.0 (the "License");
sjallouli 0:a948f5f3904c 5 * you may not use this file except in compliance with the License.
sjallouli 0:a948f5f3904c 6 * You may obtain a copy of the License at
sjallouli 0:a948f5f3904c 7 *
sjallouli 0:a948f5f3904c 8 * http://www.apache.org/licenses/LICENSE-2.0
sjallouli 0:a948f5f3904c 9 *
sjallouli 0:a948f5f3904c 10 * Unless required by applicable law or agreed to in writing, software
sjallouli 0:a948f5f3904c 11 * distributed under the License is distributed on an "AS IS" BASIS,
sjallouli 0:a948f5f3904c 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
sjallouli 0:a948f5f3904c 13 * See the License for the specific language governing permissions and
sjallouli 0:a948f5f3904c 14 * limitations under the License.
sjallouli 0:a948f5f3904c 15 */
sjallouli 0:a948f5f3904c 16
sjallouli 0:a948f5f3904c 17 #include "Utils.h"
sjallouli 0:a948f5f3904c 18
sjallouli 0:a948f5f3904c 19 #if NEED_CONSOLE_OUTPUT
sjallouli 0:a948f5f3904c 20 Serial pc(USBTX, USBRX);
sjallouli 0:a948f5f3904c 21 #endif /* #if NEED_CONSOLE_OUTPUT */
sjallouli 0:a948f5f3904c 22
sjallouli 0:a948f5f3904c 23 /**************************************************************************/
sjallouli 0:a948f5f3904c 24 /*!
sjallouli 0:a948f5f3904c 25 @brief sets values of EN_HIGH_POWER and PA_LEVEL corresponding to dBMLevel of tx power
sjallouli 0:a948f5f3904c 26
sjallouli 0:a948f5f3904c 27 @returns value of tx power in dbm actually set
sjallouli 0:a948f5f3904c 28
sjallouli 0:a948f5f3904c 29 @params[in] dBMLevel
sjallouli 0:a948f5f3904c 30 dBMLevel of tx power to be set
sjallouli 0:a948f5f3904c 31
sjallouli 0:a948f5f3904c 32 @params[in] dBMLevel
sjallouli 0:a948f5f3904c 33 dBMLevel of tx power to be set
sjallouli 0:a948f5f3904c 34
sjallouli 0:a948f5f3904c 35 @endcode
sjallouli 0:a948f5f3904c 36 */
sjallouli 0:a948f5f3904c 37 /**************************************************************************/
sjallouli 0:a948f5f3904c 38 double getHighPowerAndPALevelValue(int8_t dBMLevel, int8_t& EN_HIGH_POWER, int8_t& PA_LEVEL) {
sjallouli 0:a948f5f3904c 39 double dbm = (double) dBMLevel;
sjallouli 0:a948f5f3904c 40 if(dbm<-18.0) {
sjallouli 0:a948f5f3904c 41 dbm = -18;
sjallouli 0:a948f5f3904c 42 EN_HIGH_POWER = 0;
sjallouli 0:a948f5f3904c 43 PA_LEVEL = 0;
sjallouli 0:a948f5f3904c 44 }
sjallouli 0:a948f5f3904c 45 else if(dbm>8.0) {
sjallouli 0:a948f5f3904c 46 dbm = 8;
sjallouli 0:a948f5f3904c 47 EN_HIGH_POWER = 1;
sjallouli 0:a948f5f3904c 48 PA_LEVEL = 7;
sjallouli 0:a948f5f3904c 49 }
sjallouli 0:a948f5f3904c 50
sjallouli 0:a948f5f3904c 51 // As a policy we are setting tx power level to the higher side
sjallouli 0:a948f5f3904c 52 if((dbm>-18.0) && (dbm<=-15)) {
sjallouli 0:a948f5f3904c 53 // set tx power to -15dBM
sjallouli 0:a948f5f3904c 54 EN_HIGH_POWER = 0;
sjallouli 0:a948f5f3904c 55 PA_LEVEL = 0;
sjallouli 0:a948f5f3904c 56 }
sjallouli 0:a948f5f3904c 57 else if((dbm>-15) && (dbm<=-14.7)) {
sjallouli 0:a948f5f3904c 58 // set tx power to -14.7dBM
sjallouli 0:a948f5f3904c 59 EN_HIGH_POWER = 0;
sjallouli 0:a948f5f3904c 60 PA_LEVEL = 1;
sjallouli 0:a948f5f3904c 61 }
sjallouli 0:a948f5f3904c 62 else if((dbm>-14.7) && (dbm<=-11.7)) {
sjallouli 0:a948f5f3904c 63 // set tx power to -11.7dBM
sjallouli 0:a948f5f3904c 64 EN_HIGH_POWER = 1;
sjallouli 0:a948f5f3904c 65 PA_LEVEL = 1;
sjallouli 0:a948f5f3904c 66 }
sjallouli 0:a948f5f3904c 67 else if((dbm>-11.7) && (dbm<=-11.4)) {
sjallouli 0:a948f5f3904c 68 // set tx power to -11.4dBM
sjallouli 0:a948f5f3904c 69 EN_HIGH_POWER = 0;
sjallouli 0:a948f5f3904c 70 PA_LEVEL = 2;
sjallouli 0:a948f5f3904c 71 }
sjallouli 0:a948f5f3904c 72 else if((dbm>-11.4) && (dbm<=-8.4)) {
sjallouli 0:a948f5f3904c 73 // set tx power to -8.4dBM
sjallouli 0:a948f5f3904c 74 EN_HIGH_POWER = 1;
sjallouli 0:a948f5f3904c 75 PA_LEVEL = 2;
sjallouli 0:a948f5f3904c 76 }
sjallouli 0:a948f5f3904c 77 else if((dbm>-8.4) && (dbm<=-8.1)) {
sjallouli 0:a948f5f3904c 78 // set tx power to -8.1dBM
sjallouli 0:a948f5f3904c 79 EN_HIGH_POWER = 0;
sjallouli 0:a948f5f3904c 80 PA_LEVEL = 3;
sjallouli 0:a948f5f3904c 81 }
sjallouli 0:a948f5f3904c 82 else if((dbm>-8.1) && (dbm<=-5.1)) {
sjallouli 0:a948f5f3904c 83 // set tx power to -5.1dBM
sjallouli 0:a948f5f3904c 84 EN_HIGH_POWER = 1;
sjallouli 0:a948f5f3904c 85 PA_LEVEL = 3;
sjallouli 0:a948f5f3904c 86 }
sjallouli 0:a948f5f3904c 87 else if((dbm>-5.1) && (dbm<=-4.9)) {
sjallouli 0:a948f5f3904c 88 // set tx power to -4.9dBM
sjallouli 0:a948f5f3904c 89 EN_HIGH_POWER = 0;
sjallouli 0:a948f5f3904c 90 PA_LEVEL = 4;
sjallouli 0:a948f5f3904c 91 }
sjallouli 0:a948f5f3904c 92 else if((dbm>-4.9) && (dbm<=-2.1)) {
sjallouli 0:a948f5f3904c 93 // set tx power to -2.1dBM
sjallouli 0:a948f5f3904c 94 EN_HIGH_POWER = 1;
sjallouli 0:a948f5f3904c 95 PA_LEVEL = 4;
sjallouli 0:a948f5f3904c 96 }
sjallouli 0:a948f5f3904c 97 else if((dbm>-2.1) && (dbm<=-1.6)) {
sjallouli 0:a948f5f3904c 98 // set tx power to -1.6dBM
sjallouli 0:a948f5f3904c 99 EN_HIGH_POWER = 0;
sjallouli 0:a948f5f3904c 100 PA_LEVEL = 5;
sjallouli 0:a948f5f3904c 101 }
sjallouli 0:a948f5f3904c 102 else if((dbm>-1.6) && (dbm<=1.4)) {
sjallouli 0:a948f5f3904c 103 // set tx power to -1.6dBM
sjallouli 0:a948f5f3904c 104 EN_HIGH_POWER = 1;
sjallouli 0:a948f5f3904c 105 PA_LEVEL = 5;
sjallouli 0:a948f5f3904c 106 }
sjallouli 0:a948f5f3904c 107 else if((dbm>1.4) && (dbm<=1.7)) {
sjallouli 0:a948f5f3904c 108 // set tx power to 1.7dBM
sjallouli 0:a948f5f3904c 109 EN_HIGH_POWER = 0;
sjallouli 0:a948f5f3904c 110 PA_LEVEL = 6;
sjallouli 0:a948f5f3904c 111 }
sjallouli 0:a948f5f3904c 112 else if((dbm>1.7) && (dbm<=4.7)) {
sjallouli 0:a948f5f3904c 113 // set tx power to 4.7dBM
sjallouli 0:a948f5f3904c 114 EN_HIGH_POWER = 1;
sjallouli 0:a948f5f3904c 115 PA_LEVEL = 6;
sjallouli 0:a948f5f3904c 116 }
sjallouli 0:a948f5f3904c 117 else if((dbm>4.7) && (dbm<=5.0)) {
sjallouli 0:a948f5f3904c 118 // set tx power to 5.0dBM
sjallouli 0:a948f5f3904c 119 EN_HIGH_POWER = 0;
sjallouli 0:a948f5f3904c 120 PA_LEVEL = 7;
sjallouli 0:a948f5f3904c 121 }
sjallouli 0:a948f5f3904c 122 else if((dbm>5.0) && (dbm<=8)) {
sjallouli 0:a948f5f3904c 123 // set tx power to 8.0dBM
sjallouli 0:a948f5f3904c 124 EN_HIGH_POWER = 1;
sjallouli 0:a948f5f3904c 125 PA_LEVEL = 7;
sjallouli 0:a948f5f3904c 126 }
sjallouli 0:a948f5f3904c 127
sjallouli 0:a948f5f3904c 128 return dbm;
sjallouli 0:a948f5f3904c 129 }