update chip status

Author: haitongli

README.md

@@ -29,12 +29,11 @@ Chip 2: Prototyping Chip, status: some cells over-SET, working otherwise, nothin
 Chip 3: FORMed all, programmed with first set of inputs (HRS: 70-90kOhm)... was somewhat working, but then we tried to push to 500kOhm and shorted a bunch of cells. Lesson learned: don't push past 100kOhm.  
 Chip 4: FORMed every 8 cells, programmed with a simple debug vector, working but cell HRS is 70-90kOhm  
 Chip 5: FORMed every 8 cells, programmed with a simple debug vector, HRS is >100kOhm, working  
-Chip 6: FORMed all, programmed with first set of inputs (HRS: >100kOhm), working!!! But now shorted  
-Chip 7: FORMed all, programmed with second batch of inputs (HRS: >100kOhm), TODO: reexamine.
-    - Programming batch_0 vectors and tuning HRS
+Chip 6: FORMed all, programmed with first set of inputs (HRS: >100kOhm), working!!! Re-measured accuracy matrix vs. bias conditions.   
+Chip 7: FORMed all, programmed with second batch of inputs (HRS: >100kOhm). Re-programmed to batch_0 vectors (lots of stuck-at error bits).
 Chip 8: FORMed all, programmed with a simple debug vector (same as 4), we think the sense amp might be broken  
 Chip 9: prototyping  
-Chip 10: FORMed all, programmed with batch_0 feature vectors (HRS >100kOhm)
+Chip 10: FORMed all, programmed with batch_0 feature vectors (HRS >100kOhm). Measured accuracy matrix vs. bias conditoins (consistent with Chip 6).