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pamelats |
1.1 |
#include "Digitizer.h" |
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void Digitizer::DigitizeRunHeader(){ |
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const Int_t lenRH = fRunHeaderbuffer*2; |
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UChar_t buffRH[lenRH]; |
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UShort_t buffPSCU[8]; |
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UChar_t *p; |
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p=buffRH; |
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// header: 16 bytes |
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DigitizePSCU(fRunHeaderbuffer*2,0x20,buffPSCU); |
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memcpy(p,buffPSCU,16*sizeof(UChar_t)); |
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p+=16; |
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// time stamp (uint32): 0x82569c97 |
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*(p++) = 0x82; |
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*(p++) = 0x56; |
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*(p++) = 0x9C; |
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*(p++) = 0x97; |
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// acq_setting_mode (uint8) |
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*(p++) = 2; |
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// obt (uint32) |
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ULong64_t obt = fOBT + 30LL; |
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while ( obt > 4294967295LL ) |
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obt -= 4294967295LL; |
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fOBT = (UInt_t)obt; |
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// |
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*(p++) = (UChar_t)(fOBT >> 24); |
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*(p++) = (UChar_t)(fOBT >> 16); |
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*(p++) = (UChar_t)(fOBT >> 8); |
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*(p++) = (UChar_t)fOBT; |
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// last time_sync_info (uint32) (from file 000_001_00110) |
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*(p++) = 0x00; |
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*(p++) = 0x08; |
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*(p++) = 0x68; |
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*(p++) = 0xEF; |
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// fav. working schedule (uint8) |
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*(p++) = 0; |
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// eff. working schedule (uint8) |
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*(p++) = 0; |
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// trigger_mode_A (uint32) |
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*(p++) = 0; |
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*(p++) = 0; |
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*(p++) = 0; |
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*(p++) = 0x01; |
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// trigger_mode_B (uint32) |
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*(p++) = 0; |
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*(p++) = 0; |
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*(p++) = 0; |
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*(p++) = 0x03; |
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// acq_after_calib (0,1) (uint8) |
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*(p++) = 0; |
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// trk_calib_used (uint32) |
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*(p++) = 0; |
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*(p++) = 0; |
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*(p++) = 0; |
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*(p++) = 0x68; |
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// acq_build_info (4 zero bits + 28 1's) (uint32) |
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*(p++) = 0x3F; |
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*(p++) = 0xFF; |
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*(p++) = 0xFF; |
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*(p++) = 0xFF; |
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// acq_var_info (11 bits) (uint16) |
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*(p++) = 0x23; |
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*(p++) = 0x7F; |
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// cal_dsp_mask (uint8) |
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*(p++) = 0; |
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// crc (uint16) |
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UShort_t crcRH = (UShort_t)CM_Compute_CRC16((UINT16)0, (BYTE*)&buffRH, (UINT32)(fRunHeaderbuffer*2-2)); |
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*(p++) = (UChar_t)(crcRH << 8); |
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*p = (UChar_t)crcRH; |
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memcpy(fDataRunHeader,buffRH,fRunHeaderbuffer*sizeof(UShort_t)); |
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}; |
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void Digitizer::DigitizeRunTrailer(){ |
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UChar_t buffRT[fRunTrailerbuffer*2]; |
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UShort_t buffPSCU[8]; |
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UChar_t *p; |
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p=buffRT; |
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// header: 16 bytes |
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DigitizePSCU(fRunHeaderbuffer*2,0x21,buffPSCU); |
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memcpy(p,buffPSCU,16*sizeof(UChar_t)); |
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p+=16; |
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// pkt_counter (uint32) |
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fCounterPhys++; |
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fCounter++; |
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while ( fCounterPhys > 16777215 ) |
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fCounterPhys -= 16777215; |
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// |
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*(p++) = (UChar_t)(fCounterPhys >> 24); |
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*(p++) = (UChar_t)(fCounterPhys >> 16); |
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*(p++) = (UChar_t)(fCounterPhys >> 8); |
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*(p++) = (UChar_t)fCounterPhys; |
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// pkt_readyCounter: valid packets in the run (uint32) |
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*(p++) = 0; |
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*(p++) = 0; |
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*(p++) = 0; |
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*(p++) = 0; |
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// obt (uint32) |
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ULong64_t obt = fOBT + 30LL; |
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while ( obt > 4294967295LL ) |
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obt -= 4294967295LL; |
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fOBT = (UInt_t)obt; |
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// |
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*(p++) = (UChar_t)(fOBT >> 24); |
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*(p++) = (UChar_t)(fOBT >> 16); |
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*(p++) = (UChar_t)(fOBT >> 8); |
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*(p++) = (UChar_t)fOBT; |
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// last time_sync_info (uint32) |
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*(p++) = 0; |
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*(p++) = 0; |
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*(p++) = 0; |
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*(p++) = 0; |
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// crc (uint16) |
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UShort_t crcRT = (UShort_t)CM_Compute_CRC16((UINT16)0, (BYTE*)(buffRT), (UINT32)(fRunTrailerbuffer*2-2)); |
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*(p++) = (UChar_t)(crcRT << 8); |
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*p = (UChar_t)crcRT; |
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memcpy(fDataRunTrailer,buffRT,fRunTrailerbuffer*sizeof(UShort_t)); |
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}; |
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void Digitizer::AddPadding(){ |
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// |
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Float_t pd0 = (fLen+16)/64.; |
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Float_t pd1 = pd0 - (Float_t)int(pd0); |
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Float_t padfrac = 64. - pd1 * 64.; |
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// |
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UInt_t padbytes = (UInt_t)padfrac; |
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if ( padbytes > 0 && padbytes < 64 ){ |
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// |
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// here the padding length |
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// |
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fPadding = padbytes+64; |
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// |
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// random padding bytes |
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// |
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for (Int_t ur=0; ur<32; ur++){ |
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fDataPadding[ur] = (UShort_t)rand(); |
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}; |
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}; |
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}; |
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void Digitizer::DigitizePSCU(UInt_t length, UChar_t type, UShort_t *pPSCU) { |
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// |
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UChar_t buff[16]; |
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// |
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// CPU signature |
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// |
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buff[0] = 0xFA; |
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buff[1] = 0xFE; |
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buff[2] = 0xDE; |
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// |
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// packet type (twice) |
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// |
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buff[3] = type; |
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buff[4] = type; |
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// |
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// counter |
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// |
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fCounter++; |
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while ( fCounter > 16777215 ){ |
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fCounter -= 16777215; |
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}; |
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// |
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buff[5] = (UChar_t)(fCounter >> 16); |
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buff[6] = (UChar_t)(fCounter >> 8); |
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buff[7] = (UChar_t)fCounter; |
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// |
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// on board time |
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// |
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ULong64_t obt = fOBT + 30LL; |
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// |
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while ( obt > 4294967295LL ){ |
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obt -= 4294967295LL; |
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}; |
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fOBT = (UInt_t)obt; |
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// |
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buff[8] = (UChar_t)(fOBT >> 24); |
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buff[9] = (UChar_t)(fOBT >> 16); |
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buff[10] = (UChar_t)(fOBT >> 8); |
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buff[11] = (UChar_t)fOBT; |
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// |
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// Packet length |
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// |
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fLen = length; |
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// |
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buff[12] = (UChar_t)(fLen >> 16); |
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buff[13] = (UChar_t)(fLen >> 8); |
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buff[14] = (UChar_t)fLen; |
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// |
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// CPU header CRC |
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// |
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buff[15] = (BYTE)CM_Compute_CRC16((UINT16)0, (BYTE*)&buff, (UINT32)15); |
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// |
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//memcpy(fDataPSCU,buff,16*sizeof(UChar_t)); |
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memcpy(pPSCU,buff,16*sizeof(UChar_t)); |
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// |
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}; |
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