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Diff: Utilities.cpp
- Revision:
- 0:0c88691e3904
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Utilities.cpp Sun Mar 01 06:28:01 2015 +0000 @@ -0,0 +1,75 @@ +/* Copyright (c) 2012 Georgios Petrou, MIT License + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of this software + * and associated documentation files (the "Software"), to deal in the Software without restriction, + * including without limitation the rights to use, copy, modify, merge, publish, distribute, + * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all copies or + * substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING + * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include "Utilities.h" + +uint8_t Utilities::GetCheckSum(const uint8_t *data, uint8_t length) +{ + uint8_t checkSum = 0; + + for(int i = 0; i < length; i++) + checkSum += data[i]; + + checkSum = ~checkSum; + + return checkSum; +} + +void Utilities::ConvertUInt16ToUInt8Array(uint16_t value, uint8_t* data) +{ + data[0] = value; + data[1] = value >> 8; +} + +void Utilities::ConvertInt16ToUInt8Array(int16_t value, uint8_t* data) +{ + data[0] = value; + data[1] = value >> 8; +} + +void Utilities::ConvertUInt32ToUInt8Array(uint32_t value, uint8_t* data) +{ + data[0] = value; + data[1] = value >> 8; + data[2] = value >> 16; + data[3] = value >> 24; +} + +void Utilities::ConvertInt32ToUInt8Array(int32_t value, uint8_t* data) +{ + data[0] = value; + data[1] = value >> 8; + data[2] = value >> 16; + data[3] = value >> 24; +} + +uint16_t Utilities::ConvertUInt8ArrayToUInt16(uint8_t* data) +{ + return (((uint16_t)data[1]) << 8) | ((uint16_t)data[0]); +} + +int16_t Utilities::ConvertUInt8ArrayToInt16(uint8_t* data) +{ + return (((int16_t)data[1]) << 8) | ((int16_t)data[0]); +} + +int32_t Utilities::ConvertUInt8ArrayToInt32(uint8_t* data) +{ + return (((int32_t)data[3]) << 24) | (((int32_t)data[2]) << 16) | (((int32_t)data[1]) << 8) | ((int32_t)data[0]); +} + \ No newline at end of file