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/*******************************v1.2******************************** |
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|
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Functions to read AC physics data (ACphysics) and AC calibration |
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data (ACcalib). |
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Author: Petter Hofverberg, petter@particle.kth.se |
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|
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0410 v1.0 alive |
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0412 v1.1 fixed problem with found, and changed headers |
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0502 v1.2 added a crc check |
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|
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Errors: (returned to the main program as the variable "err") |
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err= |
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0xFF - data (physics or calibration) from both cards found |
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0xF0 - only data from main card found |
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0x0F - only data from extra card found |
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0x00 - no data found |
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|
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CRCcheck: 1 - OK, 0 - error |
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******************************************************************/ |
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|
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#include <stdio.h> |
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#include "AC.h" |
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#define TRUE 1 |
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#define FALSE 0 |
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|
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int i,j,found; |
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unsigned short buffer[1000]; |
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unsigned short tmp1,tmp2,check; |
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unsigned char err; |
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|
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struct physicsstruct physicsdata[2]; |
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struct physicsstruct *physicspointer; |
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|
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struct calibstruct calibdata; |
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struct calibstruct *calibpointer; |
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|
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|
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//CRC check function |
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short crc(short old,short new) |
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{ |
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union crc_data { |
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short word; |
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struct bit_field { |
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unsigned b0:1; |
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unsigned b1:1; |
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unsigned b2:1; |
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unsigned b3:1; |
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unsigned b4:1; |
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unsigned b5:1; |
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unsigned b6:1; |
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unsigned b7:1; |
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unsigned b8:1; |
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unsigned b9:1; |
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unsigned b10:1; |
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unsigned b11:1; |
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unsigned b12:1; |
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unsigned b13:1; |
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unsigned b14:1; |
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unsigned b15:1; |
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} bit; |
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} c,d,r; |
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|
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c.word = old; |
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d.word = new; |
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r.word = 0; |
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|
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r.bit.b0 = c.bit.b0 ^ c.bit.b4 ^ c.bit.b8 ^ c.bit.b11 ^ c.bit.b12 ^ |
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d.bit.b0 ^ d.bit.b4 ^ d.bit.b8 ^ d.bit.b11 ^ d.bit.b12; |
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|
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r.bit.b1 = c.bit.b1 ^ c.bit.b5 ^ c.bit.b9 ^ c.bit.b12 ^ c.bit.b13 ^ |
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d.bit.b1 ^ d.bit.b5 ^ d.bit.b9 ^ d.bit.b12 ^ d.bit.b13; |
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|
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r.bit.b2 = c.bit.b2 ^ c.bit.b6 ^ c.bit.b10 ^ c.bit.b13 ^ c.bit.b14 ^ |
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d.bit.b2 ^ d.bit.b6 ^ d.bit.b10 ^ d.bit.b13 ^ d.bit.b14; |
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|
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r.bit.b3 = c.bit.b3 ^ c.bit.b7 ^ c.bit.b11 ^ c.bit.b14 ^ c.bit.b15 ^ |
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d.bit.b3 ^ d.bit.b7 ^ d.bit.b11 ^ d.bit.b14 ^ d.bit.b15; |
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|
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r.bit.b4 = c.bit.b4 ^ c.bit.b8 ^ c.bit.b12 ^ c.bit.b15 ^ |
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d.bit.b4 ^ d.bit.b8 ^ d.bit.b12 ^ d.bit.b15; |
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|
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r.bit.b5 = c.bit.b0 ^ c.bit.b4 ^ c.bit.b5 ^ c.bit.b8 ^ c.bit.b9 ^ |
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c.bit.b11 ^ c.bit.b12 ^ c.bit.b13 ^ |
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d.bit.b0 ^ d.bit.b4 ^ d.bit.b5 ^ d.bit.b8 ^ d.bit.b9 ^ |
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d.bit.b11 ^ d.bit.b12 ^ d.bit.b13; |
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|
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r.bit.b6 = c.bit.b1 ^ c.bit.b5 ^ c.bit.b6 ^ c.bit.b9 ^ c.bit.b10 ^ |
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c.bit.b12 ^ c.bit.b13 ^ c.bit.b14 ^ |
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d.bit.b1 ^ d.bit.b5 ^ d.bit.b6 ^ d.bit.b9 ^ d.bit.b10 ^ |
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d.bit.b12 ^ d.bit.b13 ^ d.bit.b14; |
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|
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r.bit.b7 = c.bit.b2 ^ c.bit.b6 ^ c.bit.b7 ^ c.bit.b10 ^ c.bit.b11 ^ |
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c.bit.b13 ^ c.bit.b14 ^ c.bit.b15 ^ |
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d.bit.b2 ^ d.bit.b6 ^ d.bit.b7 ^ d.bit.b10 ^ d.bit.b11 ^ |
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d.bit.b13 ^ d.bit.b14 ^ d.bit.b15; |
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|
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r.bit.b8 = c.bit.b3 ^ c.bit.b7 ^ c.bit.b8 ^ c.bit.b11 ^ c.bit.b12 ^ |
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c.bit.b14 ^ c.bit.b15 ^ |
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d.bit.b3 ^ d.bit.b7 ^ d.bit.b8 ^ d.bit.b11 ^ d.bit.b12 ^ |
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d.bit.b14 ^ d.bit.b15; |
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|
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r.bit.b9 = c.bit.b4 ^ c.bit.b8 ^ c.bit.b9 ^ c.bit.b12 ^ c.bit.b13 ^ |
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c.bit.b15 ^ |
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d.bit.b4 ^ d.bit.b8 ^ d.bit.b9 ^ d.bit.b12 ^ d.bit.b13 ^ |
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d.bit.b15; |
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|
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r.bit.b10 = c.bit.b5 ^ c.bit.b9 ^ c.bit.b10 ^ c.bit.b13 ^ c.bit.b14 ^ |
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d.bit.b5 ^ d.bit.b9 ^ d.bit.b10 ^ d.bit.b13 ^ d.bit.b14; |
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|
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r.bit.b11 = c.bit.b6 ^ c.bit.b10 ^ c.bit.b11 ^ c.bit.b14 ^ c.bit.b15 ^ |
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d.bit.b6 ^ d.bit.b10 ^ d.bit.b11 ^ d.bit.b14 ^ d.bit.b15; |
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|
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r.bit.b12 = c.bit.b0 ^ c.bit.b4 ^ c.bit.b7 ^ c.bit.b8 ^ c.bit.b15 ^ |
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d.bit.b0 ^ d.bit.b4 ^ d.bit.b7 ^ d.bit.b8 ^ d.bit.b15; |
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|
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r.bit.b13 = c.bit.b1 ^ c.bit.b5 ^ c.bit.b8 ^ c.bit.b9 ^ |
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d.bit.b1 ^ d.bit.b5 ^ d.bit.b8 ^ d.bit.b9; |
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|
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r.bit.b14 = c.bit.b2 ^ c.bit.b6 ^ c.bit.b9 ^ c.bit.b10 ^ |
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d.bit.b2 ^ d.bit.b6 ^ d.bit.b9 ^ d.bit.b10; |
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|
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r.bit.b15 = c.bit.b3 ^ c.bit.b7 ^ c.bit.b10 ^ c.bit.b11 ^ |
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d.bit.b3 ^ d.bit.b7 ^ d.bit.b10 ^ d.bit.b11; |
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|
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return r.word; |
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} |
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|
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|
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//Fill physicsdata from buffer |
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void fillphys(int k,unsigned short *buff) |
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{ |
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for(i=0;i<2;i++) physicsdata[k].header[i]=buff[i]; |
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physicsdata[k].status=buff[2]; |
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physicsdata[k].hitmap=buff[3]; |
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for(i=0;i<6;i++) physicsdata[k].regist[i]=buff[4+i]; |
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for(i=0;i<16;i++) physicsdata[k].shift[i]=buff[10+i]; |
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for(i=0;i<16;i++) physicsdata[k].counters[i]=buff[26+i]; |
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for(i=0;i<8;i++) physicsdata[k].coinc[i]=buff[42+i]; |
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physicsdata[k].trigg=buff[50]; |
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for(i=0;i<2;i++) physicsdata[k].clock[i]=buff[51+i]; |
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for(i=0;i<2;i++) physicsdata[k].temp[i]=buff[53+i]; |
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for(i=0;i<8;i++) physicsdata[k].DAC[i]=buff[55+i]; |
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physicsdata[k].CRC=buff[63]; |
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if(check==physicsdata[k].CRC) |
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physicsdata[k].CRCcheck=TRUE; |
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else |
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physicsdata[k].CRCcheck=FALSE; |
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} |
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|
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//Fill calibdata from buffer |
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void fillcalib(unsigned short *buff) |
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{ |
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for(i=0;i<2;i++) calibdata.header[i]=buff[i]; |
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for(i=0;i<5;i++) calibdata.status[i]=buff[2+i]; |
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for(i=0;i<8;i++) calibdata.temp[i]=buff[7+i]; |
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for(i=0;i<8;i++) calibdata.DAC1[i]=buff[15+i]; |
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for(i=0;i<8;i++) calibdata.DAC2[i]=buff[23+i]; |
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for(i=0;i<6;i++) calibdata.regist[i]=buff[31+i]; |
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for(i=0;i<8;i++) calibdata.time[i]=buff[37+i]; |
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calibdata.n_tr=buff[45]; |
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for(i=0;i<16;i++) calibdata.hitmap_tr[i]=buff[46+i]; |
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for(i=0;i<4096;i++) calibdata.curve1[i]=buff[62+i]; |
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for(i=0;i<4096;i++) calibdata.curve2[i]=buff[4158+i]; |
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calibdata.iCRC=buff[8254]; |
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calibdata.tail=buff[8255]; |
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calibdata.CRC=buff[8256]; |
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if(check==calibdata.CRC) |
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calibdata.CRCcheck=TRUE; |
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else |
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calibdata.CRCcheck=FALSE; |
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} |
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|
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unsigned char ACphysics(int length,unsigned char* datapointer,struct physicsstruct* physicspointer) |
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{ |
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|
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err=0; |
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found=0; |
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check=0; |
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int iter=2; |
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for(i=0;i<1000;i++) |
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buffer[i]=0; |
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fillphys(0,&buffer[0]); |
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fillphys(1,&buffer[0]); |
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|
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//point struct-pointer to physicsdata |
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//physicspointer[0]=physicsdata[0]; //card1 |
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//physicspointer[1]=physicsdata[1]; //card2 |
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//physicspointer=&physicsdata[0]; |
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|
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//look for top header ACAC, then unpack data to main card buffer or extra card buffer depending on the subheader |
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//AC11 for main, AC22 for extra |
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while(found<2 && iter<length) |
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{ |
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tmp1 = ((*datapointer) << 8) | *(datapointer+1); |
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tmp2 = ((*(datapointer+2)) << 8) | *(datapointer+3); |
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if(tmp1 == 0xACAC && ((tmp2 == 0xAC11 && (err&0xF0)==0x0) || (tmp2 == 0xAC22 && (err&0x0F)==0x0))) |
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{ |
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for(i=0;i<64;i++) |
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{ |
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buffer[i]=((*datapointer) << 8) | *(datapointer+1); |
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if(i<63) |
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check=crc(check,buffer[i]); |
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datapointer=datapointer+2; |
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} |
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if(tmp2==0xAC11){ //main card |
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fillphys(0,&buffer[0]); |
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err |= 0xF0; |
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} |
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else{ //extra card |
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fillphys(1,&buffer[0]); |
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err |= 0x0F; |
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} |
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tmp1=tmp2=0x0000; |
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check=0x0; |
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found++; |
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} |
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else{ |
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datapointer++; |
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iter=iter+1;} |
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} |
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//point struct-pointer to physicsdata |
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physicspointer[0]=physicsdata[0]; //card1 |
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physicspointer[1]=physicsdata[1]; //card2 |
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|
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return err; |
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|
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} |
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|
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|
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unsigned char ACcalib(int length, unsigned char* datapointer, struct calibstruct* calibpointer) |
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{ |
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|
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err=0; |
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found=0; |
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check=0; |
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int iter=2; |
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for(i=0;i<1000;i++) |
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buffer[i]=0; |
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fillcalib(&buffer[0]); |
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|
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//point struct-pointer to calibdata |
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//calibpointer[0]=calibdata[0]; //card1 |
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//calibpointer[1]=calibdata[1]; //card2 |
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|
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//look for the top header 0xACCA, then the subheaders 0xAC11 and 0xAC22, and unpack the data |
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//to each card depending on these. |
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while(found<1 && iter<length) |
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{ |
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tmp1 = ((*datapointer) << 8) | *(datapointer+1); |
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tmp2 = ((*(datapointer+2)) << 8) | *(datapointer+3); |
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|
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if(tmp1 == 0xACCA && ((tmp2 == 0xAC11 && (err&0xF0)==0x0) || (tmp2 == 0xACA2 && (err&0x0F)==0x0))) |
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{ |
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for(i=0;i<8258;i++) |
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{ |
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buffer[i]=((*datapointer) << 8) | *(datapointer+1); |
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if(i<8257) |
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check=crc(check,buffer[i]); |
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datapointer=datapointer+2; |
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} |
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|
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if(tmp2==0xAC11){ //main |
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fillcalib(&buffer[0]); |
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err |= 0xF0; |
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} |
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else{ //extra |
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fillcalib(&buffer[0]); |
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err |= 0x0F; |
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} |
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tmp1=tmp2=0x0000; |
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found++; |
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} |
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else{ |
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datapointer++; |
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iter=iter+1;} |
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} |
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*calibpointer=calibdata; //card1 |
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|
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return err; |
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} |
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