BLE UART example
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utils/src/Utils.cpp
- Committer:
- sjallouli
- Date:
- 2014-12-19
- Revision:
- 0:a948f5f3904c
File content as of revision 0:a948f5f3904c:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "Utils.h" #if NEED_CONSOLE_OUTPUT Serial pc(USBTX, USBRX); #endif /* #if NEED_CONSOLE_OUTPUT */ /**************************************************************************/ /*! @brief sets values of EN_HIGH_POWER and PA_LEVEL corresponding to dBMLevel of tx power @returns value of tx power in dbm actually set @params[in] dBMLevel dBMLevel of tx power to be set @params[in] dBMLevel dBMLevel of tx power to be set @endcode */ /**************************************************************************/ double getHighPowerAndPALevelValue(int8_t dBMLevel, int8_t& EN_HIGH_POWER, int8_t& PA_LEVEL) { double dbm = (double) dBMLevel; if(dbm<-18.0) { dbm = -18; EN_HIGH_POWER = 0; PA_LEVEL = 0; } else if(dbm>8.0) { dbm = 8; EN_HIGH_POWER = 1; PA_LEVEL = 7; } // As a policy we are setting tx power level to the higher side if((dbm>-18.0) && (dbm<=-15)) { // set tx power to -15dBM EN_HIGH_POWER = 0; PA_LEVEL = 0; } else if((dbm>-15) && (dbm<=-14.7)) { // set tx power to -14.7dBM EN_HIGH_POWER = 0; PA_LEVEL = 1; } else if((dbm>-14.7) && (dbm<=-11.7)) { // set tx power to -11.7dBM EN_HIGH_POWER = 1; PA_LEVEL = 1; } else if((dbm>-11.7) && (dbm<=-11.4)) { // set tx power to -11.4dBM EN_HIGH_POWER = 0; PA_LEVEL = 2; } else if((dbm>-11.4) && (dbm<=-8.4)) { // set tx power to -8.4dBM EN_HIGH_POWER = 1; PA_LEVEL = 2; } else if((dbm>-8.4) && (dbm<=-8.1)) { // set tx power to -8.1dBM EN_HIGH_POWER = 0; PA_LEVEL = 3; } else if((dbm>-8.1) && (dbm<=-5.1)) { // set tx power to -5.1dBM EN_HIGH_POWER = 1; PA_LEVEL = 3; } else if((dbm>-5.1) && (dbm<=-4.9)) { // set tx power to -4.9dBM EN_HIGH_POWER = 0; PA_LEVEL = 4; } else if((dbm>-4.9) && (dbm<=-2.1)) { // set tx power to -2.1dBM EN_HIGH_POWER = 1; PA_LEVEL = 4; } else if((dbm>-2.1) && (dbm<=-1.6)) { // set tx power to -1.6dBM EN_HIGH_POWER = 0; PA_LEVEL = 5; } else if((dbm>-1.6) && (dbm<=1.4)) { // set tx power to -1.6dBM EN_HIGH_POWER = 1; PA_LEVEL = 5; } else if((dbm>1.4) && (dbm<=1.7)) { // set tx power to 1.7dBM EN_HIGH_POWER = 0; PA_LEVEL = 6; } else if((dbm>1.7) && (dbm<=4.7)) { // set tx power to 4.7dBM EN_HIGH_POWER = 1; PA_LEVEL = 6; } else if((dbm>4.7) && (dbm<=5.0)) { // set tx power to 5.0dBM EN_HIGH_POWER = 0; PA_LEVEL = 7; } else if((dbm>5.0) && (dbm<=8)) { // set tx power to 8.0dBM EN_HIGH_POWER = 1; PA_LEVEL = 7; } return dbm; }