add header_check to elinks menu

simple pedestal run and count good/bad bx headers and idles
LDMX-Software · Apr 7, 2022 · fe39f59 · fe39f59
1 parent 055d136
commit fe39f59
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Showing 2 changed files with 59 additions and 1 deletion.
diff --git a/include/pflib/decoding/RocPacket.h b/include/pflib/decoding/RocPacket.h
@@ -21,6 +21,12 @@ class RocPacket {
 
   int wadd() const { if (length_<3) return -1; return (data_[2]>>3)&0xFF;}
 
+  int length() const { return length_; }
+
+  bool good_bxheader() const { if (length_<3) return false; return (data_[2]&0xff000000)==0xaa000000; }
+
+  bool good_idle() const { if (length_<42) return false; return data_[41]==0xaccccccc; }
+
   bool has_chan(int ichan) const { return offset_to_chan(ichan)>=0; }
 
   int get_tot(int ichan) const { int offset = offset_to_chan(ichan); if (offset == -1) return -1; return (data_[offset]>>20)&0xFFF;} 

diff --git a/tool/pftool.cc b/tool/pftool.cc
@@ -227,6 +227,7 @@ static void link( const std::string& cmd, PolarfireTarget* pft ) {
  * ## Commands
  * - RELINK : pflib::PolarfireTarget::elink_relink
  * - SPY : pflib::Elinks::spy
+ * - HEADER_CHECK : do a pedestal run and count good/bad headers in it
  * - BITSLIP : pflib::Elinks::setBitslip and pflib::Elinks::setBitslipAuto
  * - BIGSPY : PolarfireTarget::elinksBigSpy
  * - DELAY : pflib::Elinks::setDelay
@@ -239,7 +240,7 @@ static void link( const std::string& cmd, PolarfireTarget* pft ) {
  */
 static void elinks( const std::string& cmd, PolarfireTarget* pft ) {
   pflib::Elinks& elinks=pft->hcal.elinks();
-  static int ilink=0;
+  static int ilink=0,nevents{100};
   static int min_delay{0}, max_delay{128};
   if (cmd=="RELINK"){
     ilink=BaseMenu::readline_int("Which elink? (-1 for all) ",ilink);
@@ -253,6 +254,56 @@ static void elinks( const std::string& cmd, PolarfireTarget* pft ) {
     for (size_t i=0; i<spy.size(); i++)
       printf("%02d %05x\n",int(i),spy[i]);
   }
+  if (cmd=="HEADER_CHECK") {
+    nevents=BaseMenu::readline_int("Num events? ",nevents);
+
+    int nsamples=1;
+    {
+      bool multi;
+      int nextra;
+      pft->hcal.fc().getMultisampleSetup(multi,nextra);
+      if (multi) nsamples=nextra+1;
+    }
+
+    pft->prepareNewRun();
+
+    int n_good_bxheaders[8] = {0,0,0,0,0,0,0,0};
+    int n_bad_bxheaders[8] = {0,0,0,0,0,0,0,0};
+    int n_good_idles[8] = {0,0,0,0,0,0,0,0};
+    int n_bad_idles[8] = {0,0,0,0,0,0,0,0};
+    for (int ievt{0}; ievt < nevents; ievt++) {
+      pft->backend->fc_sendL1A();
+      std::vector<uint32_t> event_raw = pft->daqReadEvent();
+      pflib::decoding::SuperPacket event{&(event_raw[0]), event_raw.size()};
+      for (int s{0}; s < nsamples; s++) {
+        for (int l{0}; l < 8; l++) {
+          auto packet = event.sample(s).roc(l);
+          if (packet.length() > 2) {
+            if (event.sample(s).roc(l).good_bxheader()) n_good_bxheaders[l]++;
+            else n_bad_bxheaders[l]++;
+            if (event.sample(s).roc(l).good_idle()) n_good_idles[l]++;
+            else n_bad_idles[l]++;
+          }
+        }
+      }
+    }
+
+    printf("     %26s | %26s\n","BX Headers","Idles");
+    printf("Link %10s %10s %4s | %10s %10s %4s\n","Good","Bad","B/T","Good","Bad","B/T");
+    for (int ilink{0}; ilink < 8; ilink++) {
+      float bg_bxheaders = 0.;
+      if (n_good_bxheaders[ilink]+n_bad_bxheaders[ilink]>0) 
+        bg_bxheaders = float(n_bad_bxheaders[ilink])/
+          (n_good_bxheaders[ilink]+n_bad_bxheaders[ilink]);
+      float bg_idles = 0.;
+      if (n_good_idles[ilink]+n_bad_idles[ilink]>0) 
+        bg_idles = float(n_bad_idles[ilink])/
+          (n_good_idles[ilink]+n_bad_idles[ilink]);
+      printf("%4d %10d %10d %.2f | %10d %10d %.2f\n", ilink, 
+          n_good_bxheaders[ilink], n_bad_bxheaders[ilink], bg_bxheaders,
+          n_good_idles[ilink], n_bad_idles[ilink], bg_idles);
+    }
+  }
   if (cmd=="BITSLIP") {
     ilink=BaseMenu::readline_int("Which elink? ",ilink);
     int bitslip=BaseMenu::readline_int("Bitslip value (-1 for auto): ",elinks.getBitslip(ilink));
@@ -1348,6 +1399,7 @@ static void RunMenu( PolarfireTarget* pft_ ) {
     pfMenu::Line("HARD_RESET","Hard reset of the PLL", &elinks),    
     pfMenu::Line("STATUS", "Elink status summary",  &elinks ),
     pfMenu::Line("SPY", "Spy on an elink",  &elinks ),
+    pfMenu::Line("HEADER_CHECK", "Do a pedestal run and tally good/bad headers, only non-DMA", &elinks),
     pfMenu::Line("BITSLIP", "Set the bitslip for a link or turn on auto", &elinks),
     pfMenu::Line("SCAN", "Scan on an elink",  &elinks ),
     pfMenu::Line("DELAY", "Set the delay on an elink", &elinks),