}
//_____________________________________________________________________________
-void
+Bool_t
AliMUONTriggerIO::DeCompAddress(UChar_t &ypos, UChar_t &ytri, UChar_t &xdev, UChar_t &xpos,
UShort_t address) const
{
ytri = (address >> bitsYpos) & maskYtri;
xdev = (address >> (bitsYpos+bitsYtri)) & maskXdev;
xpos = (address >> (bitsYpos+bitsYtri+bitsXdev)) & maskXpos;
+
+ // convert deviation format
+ // online: sign 1bit , dev 4bit
+ // sign dev trigger
+ // 0 1-15 mu-
+ // 1 1-15 mu+
+ // 0 0 mu+, mu- infinite momentum (unde)
+ // 1 0 no x-trigger
+ // offline: dev 5bit
+ // sign dev trigger
+ // - 0-14 mu-
+ // - 16-31 mu+
+ // - 15 mu+, mu- infinite momentum (unde)
+
+ Int_t iXdevOff, iXdevOn, iXdev, sign;
+ Bool_t trigx;
+
+ iXdev = xdev;
+
+ iXdevOn = sign = 0;
+ iXdevOn += iXdev & 0x0F;
+ sign += (iXdev >> 4) & 0x01;
+ if (iXdevOn == 0) {
+ if (sign == 0) {
+ iXdevOff = 15;
+ trigx = kTRUE;
+ } else {
+ iXdevOff = 15;
+ trigx = kFALSE;
+ }
+ } else {
+ trigx = kTRUE;
+ if (sign == 0) {
+ iXdevOff = - iXdevOn + 15; // gives range 0-14
+ } else {
+ iXdevOff = + iXdevOn + 15; // gives range 16-30 !
+ }
+ }
+
+ xdev = iXdevOff;
+
+ return trigx;
+
}
//_____________________________________________________________________________
lut.SetContent("LptUnde",icirc,istripX,idev,iLptUnde);
lut.SetContent("LptPlus",icirc,istripX,idev,iLptPlus);
- lut.SetContent("HptMinu",icirc,istripX,idev,iLptMinu);
- lut.SetContent("HptUnde",icirc,istripX,idev,iLptUnde);
- lut.SetContent("HptPlus",icirc,istripX,idev,iLptPlus);
+ lut.SetContent("HptMinu",icirc,istripX,idev,iHptMinu);
+ lut.SetContent("HptUnde",icirc,istripX,idev,iHptUnde);
+ lut.SetContent("HptPlus",icirc,istripX,idev,iHptPlus);
}
//_____________________________________________________________________________
UShort_t address;
- UChar_t buffer;
+ UChar_t buffer[16384]; // 32768 hpt/lpt addresses divided by two
UChar_t mask1 = 0xF0;
UChar_t mask2 = 0x0F;
- UChar_t maskLpt = 0x0C;
- UChar_t maskHpt = 0x03;
+ UChar_t maskHpt = 0x0C;
+ UChar_t maskLpt = 0x03;
UChar_t lh, lpt, hpt;
UChar_t xpos, xdev, ypos, ytri;
AliDebug(1,Form("Reading LUT values for local board %d",boardnr));
Int_t ny = 0;
+ Bool_t trigx = kFALSE;
+ // read two lut addresses at once, 32768/2=16384 times
+ fread(buffer,16384,1,flut);
+
// create the 32767 addresses for the 4-bits lpt and hpt half-bytes
- for (UShort_t ilut = 0; ilut < 0x7FFF; ilut += 2)
+ for (UShort_t ilut = 0; ilut < 32768; ilut += 2)
{
- // read two lut addresses at once
- fread(&buffer,1,1,flut);
// 1st 4-bits half-byte
address = ilut;
- lh = (buffer & mask1) >> 4;
+ lh = (buffer[ilut/2] & mask1) >> 4;
// Lpt and Hpt response
- lpt = (lh & maskLpt) >> 2;
- hpt = lh & maskHpt;
+ hpt = (lh & maskHpt) >> 2;
+ lpt = lh & maskLpt;
// decompose the 15-bits address
- DeCompAddress(ypos,ytri,xdev,xpos,address);
+ trigx = DeCompAddress(ypos,ytri,xdev,xpos,address);
// calculate group of y-strips
- if (ny < 16)
+ if (trigx && (ny < 16))
{
lutLpt[ny][0] = lpt & 1;
lutLpt[ny][1] = (lpt & 2) >> 1;
// 2nd 4-bits half-byte
address = ilut+1;
- lh = (buffer & mask2);
+ lh = (buffer[ilut/2] & mask2);
// Lpt and Hpt response
- lpt = (lh & maskLpt) >> 2;
- hpt = lh & maskHpt;
+ hpt = (lh & maskHpt) >> 2;
+ lpt = lh & maskLpt;
// decompose the 15-bits address
- DeCompAddress(ypos,ytri,xdev,xpos,address);
+ trigx = DeCompAddress(ypos,ytri,xdev,xpos,address);
// calculate group of y-strips
- if (ny < 16)
+ if (trigx && (ny < 16))
{
lutLpt[ny][0] = lpt & 1;
lutLpt[ny][1] = (lpt & 2) >> 1;
const Int_t kMaskYtri = 0x01;
const Int_t kMaskXdev = 0x1F;
const Int_t kMaskXpos = 0x1F;
+
+ UChar_t buffer[16384]; // 32768 hpt/lpt addresses divided by two
+ Int_t bc = 0;
for (Int_t i = 0; i < 32768; ++i)
{
Int_t iXdev = ( i >> ( 4 + 1 ) ) & kMaskXdev;
Int_t iXpos = ( i >> ( 4 + 1 + 5 ) ) & kMaskXpos;
+ // convert deviation format
+ // online: sign 1bit , dev 4bit
+ // sign dev trigger
+ // 0 1-15 mu-
+ // 1 1-15 mu+
+ // 0 0 mu+, mu- infinite momentum (unde)
+ // 1 0 no x-trigger
+ // offline: dev 5bit
+ // sign dev trigger
+ // - 0-14 mu-
+ // - 16-31 mu+
+ // - 15 mu+, mu- infinite momentum (unde)
+ Int_t iXdevOn = 0;
+ Int_t iXdevOff = 0;
+ Int_t sign = 0;
+ Bool_t trigx = kFALSE;
+ iXdevOn += iXdev & 0x0F;
+ sign += (iXdev >> 4) & 0x01;
+ if (iXdevOn == 0) {
+ if (sign == 0) {
+ iXdevOff = 15;
+ trigx = kTRUE;
+ } else {
+ iXdevOff = 15;
+ trigx = kFALSE;
+ }
+ } else {
+ trigx = kTRUE;
+ if (sign == 0) {
+ iXdevOff = - iXdevOn + 15; // gives range 0-14
+ } else {
+ iXdevOff = + iXdevOn + 15; // gives range 16-30 !
+ }
+ }
+ iXdev = iXdevOff;
+
// iYtri == 1 means no trigger in y-direction
- if (iYtri == 0)
+ if (iYtri == 0 && trigx)
{
lut.GetLutOutput(localBoardId,iXpos,iXdev,iYpos,lutLpt,lutHpt);
}
- UChar_t buffer;
-
// fill byte
if (i%2 == 0)
{
// upper half-byte
- buffer = 0;
- buffer += lutLpt[1] << 7;
- buffer += lutLpt[0] << 6;
- buffer += lutHpt[1] << 5;
- buffer += lutHpt[0] << 4;
+ buffer[bc] = 0;
+ buffer[bc] += lutHpt[1] << 7;
+ buffer[bc] += lutHpt[0] << 6;
+ buffer[bc] += lutLpt[1] << 5;
+ buffer[bc] += lutLpt[0] << 4;
} else {
// lower half-byte
- buffer += lutLpt[1] << 3;
- buffer += lutLpt[0] << 2;
- buffer += lutHpt[1] << 1;
- buffer += lutHpt[0] << 0;
- fwrite(&buffer,1,1,flut);
+ buffer[bc] += lutHpt[1] << 3;
+ buffer[bc] += lutHpt[0] << 2;
+ buffer[bc] += lutLpt[1] << 1;
+ buffer[bc] += lutLpt[0] << 0;
+ bc++;
}
}
+ fwrite(&buffer,bc,1,flut);
}
//_____________________________________________________________________________
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff