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Optimized chip tests for good new chips with lower leakage current

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This commit is contained in:
ritt
2017-10-10 17:36:34 +02:00
parent 9df66d5c96
commit ed441935a7
2 changed files with 46 additions and 24 deletions
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software/src/DRS.cpp
+33 -23
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@@ -3043,22 +3043,33 @@ int DRSBoard::ChipTest(int flag)
int n = 0, imax, jmax;
int histo[100];
Init();
SetChannelConfig(0, 8, 8);
SetDominoMode(1);
SetReadoutMode(1);
SetDominoActive(1);
SetTranspMode(0);
EnableTrigger(0, 0);
EnableTcal(0);
SelectClockSource(0);
printf("Chip test at %1.1lf deg. C\n", GetTemperature());
for (int retry = 0 ; retry < 5 ; retry++) {
Init();
SetChannelConfig(0, 8, 8);
SetDominoMode(1);
SetReadoutMode(1);
SetDominoActive(1);
SetTranspMode(0);
EnableTrigger(0, 0);
EnableTcal(0);
SelectClockSource(0);
printf("Chip test at %1.1lf deg. C\n", GetTemperature());
/* test 1 GHz */
SetFrequency(1, true);
StartDomino();
Sleep(100);
if ((GetStatusReg() & BIT_PLL_LOCKED0))
break;
SetStandbyMode(1);
Sleep(300);
SetStandbyMode(0);
Sleep(300);
}
/* test 1 GHz */
SetFrequency(1, true);
StartDomino();
Sleep(100);
if (!(GetStatusReg() & BIT_PLL_LOCKED0)) {
puts("PLL did not lock at 1 GHz");
return 0;
@@ -3192,16 +3203,15 @@ int DRSBoard::ChipTest(int flag)
double delta_t = 0.1;
for (t=0 ; t<150 ; t+=delta_t) {
if (t >= 0.99 && delta_t == 0.1) delta_t = 1;
if (t >= 9.99 && delta_t == 1) delta_t = 10;
delta_t *= 1.5;
SetReadoutDelay((float)t);
// average over 10 waveforms
// average over 5 waveforms
printf(".");
fflush(stdout);
memset(wf1, 0, sizeof(wf1));
for (int r=0 ; r<10 ; r++) {
for (int r=0 ; r<5 ; r++) {
StartDomino();
Sleep(10);
SoftTrigger();
@@ -3213,7 +3223,7 @@ int DRSBoard::ChipTest(int flag)
GetWave(0, i, wft[i], false, tc, 0, true);
for (j=0 ; j<1024 ; j++)
wf1[i][j] += wft[i][j]/10;
wf1[i][j] += wft[i][j]/5;
}
}
@@ -3304,10 +3314,10 @@ int DRSBoard::ChipTest(int flag)
if (cell_error[i][j])
n_error++;
if (lcmax > 100)
printf("\n=== Chip has too high leakage current ===\n");
if (lcmax > 10)
printf("\n========== Chip has too high leakage current ==========\n");
else if (n_error)
printf("\n=== Chip has %d cells with errors ===\n", n_error);
printf("\n========== Chip has %d cells with errors ==========\n", n_error);
else
printf("\n*** Chip test successfully finished ***\n");