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???
09/27/11 11:12
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#183891 - RE: So how do you drive RESET?
Responding to: ???'s previous message
I will try to explain me better. Sorry for my English.

To make work the Bootloader, its necessary put the PSEN to GND, Reset the uC, and disconnect the PSEN from GND.

I force the reset connecting and disconnecting the power of the circuit. If I make this process in the Eval Board all works fine. In the Eval board the reset pin is connected to a pushbutton and from the pushbutton to VDD. But I can reset the uC without use this pin. I only power off and on the power supply and it works...



List of 23 messages in thread
TopicAuthorDate
ADUC 845 Bootloader            01/01/70 00:00      
   TTL to 232 cable?            01/01/70 00:00      
      RE:TTL to 232 cable?            01/01/70 00:00      
         So how do you drive RESET?            01/01/70 00:00      
            RE: So how do you drive RESET?            01/01/70 00:00      
               485 removed?            01/01/70 00:00      
                  RE:485 removed?            01/01/70 00:00      
                     yes, remove 485            01/01/70 00:00      
                        RE:yes, remove 485            01/01/70 00:00      
   looks like a "throw together"            01/01/70 00:00      
   RS485 removed...            01/01/70 00:00      
      cable still working?            01/01/70 00:00      
         RE:cable still working?            01/01/70 00:00      
   Maybe I've missed something ...            01/01/70 00:00      
      What?            01/01/70 00:00      
         Sorry ... I hit "send" before I entered my message            01/01/70 00:00      
            No more time today            01/01/70 00:00      
            well, it seems you did it again            01/01/70 00:00      
               It doesn't look that way from here ...            01/01/70 00:00      
                  ah an edit            01/01/70 00:00      
                     Yes ... I noticed a typo and it went from there.            01/01/70 00:00      
   In studying the Data Sheet for this part            01/01/70 00:00      
   EA needs pull up            01/01/70 00:00      

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