Erasing in cryo can sometimes take really long time- implimented a way to handle it

Author: Arbin Timilsina

femb_python/configuration/configs/quadEpcsTester_v101.py

@@ -103,7 +103,7 @@ def eraseFlash(self, epcsNum = 0):
         self.femb.write_reg(op_reg,0xC7)
 
         #Erase bulk cycle time for EPCS64 is 160s max
-        for t in range(480): #8 mins
+        for t in range(160): 
             status = self.readStatus(epcsNum)
             time.sleep(1)
             if(status == 0):
@@ -145,7 +145,7 @@ def programFlash(self, epcsNum = 0, pageNum = 0, inputData = None):
         self.femb.write_reg(op_reg,0x2)
 
         #Write byte cycle time for EPCS64 is 5s max
-        for t in range(15):
+        for t in range(5):
             status = self.readStatus(epcsNum)
             time.sleep(1)
             if(status == 0):

femb_python/test_measurements/quadEpcsTester/testQuadEPCS.py

@@ -31,7 +31,8 @@ def doTesting(self):
                  return
 
         #Loop through flashes and erase
-        eraseTried = []
+        eraseTried = [0]*self.nFlashes
+        flashToSkip = [False]*self.nFlashes
         for iFlash in range(self.nFlashes):
             #Erase Flash 
             self.femb_config.eraseFlash(iFlash)
@@ -45,8 +46,8 @@ def doTesting(self):
             eraseTried[iFlash] = iTries
 
             if(iTries > 5):
-                print("Flash %s has a problem. Please check and retry again!\nExiting!\n" %(iFlash))
-                return
+                print("Flash %s has a problem. Will skip this flash!\n" %(iFlash))
+                flashToSkip[iFlash] = True
 
             #Check a page (page 5 here) to make sure if things make sense; memory should be erased to 0xFFFFFFFF
             outputData = self.femb_config.readFlash(iFlash, 5)
@@ -57,10 +58,12 @@ def doTesting(self):
         print("\nDone erasing flashes! Begining the tests.\n")
 
         #Loop over flashes and pages
-        flashSuccess = [True]*self.nFlashes
         failedPages = [0]*self.nFlashes
         programTried = [[0 for iP in range(0, self.nPages)] for iF in range(0, self.nFlashes)]
         for iFlash in range(self.nFlashes):
+            if flashToSkip[iFlash]:
+                failedPages[iFlash] = 9999999
+                continue
             for iPage in range(self.nPages):
                 inputData = []
                 for iNum in range(0, 64):
@@ -101,7 +104,6 @@ def doTesting(self):
                     print("*" * 75)
                     print("Writing to flash %s, page %s failed!" %(iFlash, iPage))
                     print("*" * 75)                    
-                    flashSuccess[iFlash]= False
                     failedPages[iFlash] += 1
                 else:
                     print("*" * 75)
@@ -117,10 +119,12 @@ def doTesting(self):
         for iFlash in range(self.nFlashes):
             print("\nNo. of tries to erase flash %s was %s" %(iFlash, eraseTried[iFlash]))
 
+        flashSuccess = [False]*self.nFlashes
         print("\nInfo on Write: ")
         print("Note: Will print no. of write tries if > 1 for a page")
         for iFlash in range(self.nFlashes):
-            if(flashSuccess[iFlash]):
+            if(failedPages[iFlash] == 0):
+               flashSuccess[iFlash] = True 
                print("\nFlash %s passed!!" %(iFlash))
                for iPage in range(self.nPages):
                    if(programTried[iFlash][iPage] > 1):