Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
07/13/09 15:26
Read: times


 
Msg Score: +1
 +1 Good Answer/Helpful
#167186 - Why disaster?
Responding to: ???'s previous message
Richard said:
It's the FLASH implementation that's the disaster, and not the RC reset. After all, the RC reset served fine for ~20 years before FLASH was integrated with the 805x core.

Not the flash implementation is the critical thing, but that the micro can change the content of flash by itself, more precise that the micro is generating the burning voltage by itself. That makes the flash vulnerable against ill running of micro during under voltage conditions. Then you need a reliable reset, that's all. I cannot see any disaster.

Richard said:
Now, I'd freely admit that a positive-going RESET is the most utterly silly and poorly thought-out feature imaginable ... but that's another (Intel) story.

Why? It makes no difference, whether you clamp a potential to the upper or lower supply rail.

Kai

List of 26 messages in thread
TopicAuthorDate
Cant find AT89S53            01/01/70 00:00      
   There's no AT89S53            01/01/70 00:00      
      Datasheet of AT89S53            01/01/70 00:00      
         AT89S8253 should be available            01/01/70 00:00      
            Many Thanks            01/01/70 00:00      
               I use it and am very happy with it!            01/01/70 00:00      
      AT89S53            01/01/70 00:00      
   Why ?            01/01/70 00:00      
      Because it have studied it            01/01/70 00:00      
         AT89S8253 is on the market            01/01/70 00:00      
         8051 !=Atmel            01/01/70 00:00      
            "Atmel" is not synonymous with "8051"            01/01/70 00:00      
            AMEL == risk, headaches, obsolescence, troubles            01/01/70 00:00      
         AT89S52 easy ISP and P89V51RD2 easy UART ISP            01/01/70 00:00      
            also            01/01/70 00:00      
            NOOOOOOOOOOOO            01/01/70 00:00      
               YES, DO NOT USE THE RC-RESET!!!            01/01/70 00:00      
               Although what you say is probably true ...            01/01/70 00:00      
                  Why disaster?            01/01/70 00:00      
               RC for experiment            01/01/70 00:00      
                  baloney            01/01/70 00:00      
                     "transistor" IC reset IC/definition            01/01/70 00:00      
                        you did not read my post            01/01/70 00:00      
               Erik is no longer good enough?!            01/01/70 00:00      
   There is            01/01/70 00:00      
   AT89S8253 ISP Programming            01/01/70 00:00      

Back to Subject List