Matthias
4381f5512f
git-svn-id: file:///srv/dev-disk-by-uuid-17e88007-4d0c-45e0-8757-cacfcc458630/repositories/svn/Diplomarbeit@107 9fe90eed-be63-e94b-8204-d34ff4c2ff93
132 lines
3.6 KiB
C
132 lines
3.6 KiB
C
/* ---------------------------------------------------------------------------
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* BpMessageFormat.c - v0.1 (c) 2008 Micro-key bv
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* ---------------------------------------------------------------------------
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* Micro-key bv
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* Industrieweg 28, 9804 TG Noordhorn
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* Postbus 92, 9800 AB Zuidhorn
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* The Netherlands
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* Tel: +31 594 503020
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* Fax: +31 594 505825
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* Email: support@microkey.nl
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* Web: www.microkey.nl
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* ---------------------------------------------------------------------------
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* Description:
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* ---------------------------------------------------------------------------
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* Version(s): 0.1, Jan 29, 2008, FSc
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* Creation.
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* ---------------------------------------------------------------------------
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*/
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/* ---------------------------------------------------------------------------
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* System include files
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* ---------------------------------------------------------------------------
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*/
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/* ---------------------------------------------------------------------------
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* Application include files
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* ---------------------------------------------------------------------------
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*/
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#include "BpMessageFormat.h"
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#include "Crc.h"
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/* ---------------------------------------------------------------------------
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* Local constant and macro definitions
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* ---------------------------------------------------------------------------
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*/
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/* ---------------------------------------------------------------------------
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* Global variable definitions
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* ---------------------------------------------------------------------------
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*/
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/* ---------------------------------------------------------------------------
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* Local variable definitions
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* ---------------------------------------------------------------------------
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*/
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/* ---------------------------------------------------------------------------
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* Local function definitions
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* ---------------------------------------------------------------------------
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*/
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/** \brief Calculates the CRC over payload etc... and sets unique start byte
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*
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* \param msg Message over which the CRC should be calculated
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*/
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void bpmsgEncodeMessage( t_bpmsg_message * msg )
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{
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UINT16 crc;
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crc = crcCalc( &msg->payloadSize, 1, 0);
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crc = crcCalc( msg->payload, msg->payloadSize, crc);
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msg->crc = crc;
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}
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void bpmsgAdd16bit(UINT8 *payloadlocation, UINT16 data)
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{
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UINT8 index = 0;
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payloadlocation[index] = (UINT8)(data >> 8);
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index++;
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payloadlocation[index] = (UINT8)(data & 0x00FF);
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}
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void bpmsgAdd32bit(UINT8 *payloadlocation, UINT32 data)
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{
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UINT8 index = 0;
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payloadlocation[index] = (UINT8)(data >> 24);
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index++;
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payloadlocation[index] = (UINT8)(data >> 16);
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index++;
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payloadlocation[index] = (UINT8)(data >> 8);
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index++;
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payloadlocation[index] = (UINT8)(data & 0xFF);
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}
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UINT8 bpmsgGet8bit(UINT8 *payload, UINT8 *payloadIndex)
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{
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UINT8 result;
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result = (UINT8)payload[*payloadIndex];
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(*payloadIndex)++;
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return result;
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}
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UINT16 bpmsgGet16bit(UINT8 *payload, UINT8 *payloadIndex)
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{
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UINT16 result;
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result = ((UINT16)payload[*payloadIndex]) << 8;
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(*payloadIndex)++;
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result += ((UINT16)payload[*payloadIndex] & 0x00FF);
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(*payloadIndex)++;
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return result;
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}
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UINT32 bpmsgGet32bit(UINT8 *payload, UINT8 *payloadIndex)
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{
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UINT32 result;
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result = ((UINT32)payload[*payloadIndex]) << 24;
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(*payloadIndex)++;
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result += ((UINT32)payload[*payloadIndex]) << 16;
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(*payloadIndex)++;
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result += ((UINT32)payload[*payloadIndex]) << 8;
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(*payloadIndex)++;
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result += ((UINT32)payload[*payloadIndex] & 0x000000FF);
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(*payloadIndex)++;
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return result;
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}
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