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Andy Neil
05/18/10 00:13
Read: 599 times
Basingstoke
Uk


 
#175991 - If only it were that simple...
Responding to: ???'s previous message
Douglas Brummund said:
i wouldn't mind homebrewing a programmer and possibly frying some chips for the sake of learning.

But what, exactly, would you learn?
The frustration of your application not working, and you not knowing whether that's just because of problems with your homebrew programmer, or "real" bugs in your application?!

The trouble is, a dodgy programmer won't just give you either 100% good chips or 100% bad chips - you will get more "subtle" errors where odd bytes are programmed incorrectly, or odd bits are not written properly and don't "hold" properly. You might even destroy some bytes "here and there".

These types of problems can produce very strange and puzzling sympoms and, therefore, can be very hard to debug - even for experienced designers!

I would therefore suggest that you do not rely upon a homebrew programmer - at least, not until you are thoroughly experienced with embedded development in general.
There are already plenty of pitfalls for the novice without adding to them yourself!

After all, if you wanted to learn to drive, you wouldn't first build you own car - would you?!

List of 19 messages in thread
TopicAuthorDate
programing on chip flash?      Douglas Brummund      05/13/10 13:44      
   of course, you are,      Erik Malund      05/13/10 14:33      
   parallel programming      Jan Waclawek      05/13/10 15:36      
   thanks everyone      Douglas Brummund      05/13/10 19:18      
      Not exactly fair      Andy Neil      05/14/10 00:48      
      too deep      Stefan KAnev      05/14/10 01:48      
         Internal voltage doublers in some chips for IAP support      Per Westermark      05/14/10 03:14      
            hm      Stefan KAnev      05/14/10 03:58      
               actually ...      Erik Malund      05/14/10 04:32      
               why to do this? I cant understand :-(      Andy Neil      05/14/10 04:37      
                  the Manzi book      Erik Malund      05/14/10 05:17      
                     You mean, "Mazidi"      Andy Neil      05/14/10 06:17      
                        agreed, and ...      Erik Malund      05/14/10 06:26      
            ISP before IAP?      Andy Neil      05/14/10 04:41      
               A question of driving force      Per Westermark      05/14/10 04:54      
      baloney      Erik Malund      05/14/10 04:35      
   programming on chip flash?      Douglas Brummund      05/17/10 20:28      
      If only it were that simple...      Andy Neil      05/18/10 00:13      
      did you read my remark above...      Jan Waclawek      05/18/10 00:47      

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