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???
04/02/10 21:36
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#174794 - Some answers but now concerns
Responding to: Jez Smith's previous message
I found a compiler called SDCC and an IDE called M-IDE Studio. They seem to work well, the examples compile and it even has a device simulator that tells you the condition of the registers.

here is a important question. how easy it is to fry my mcu?

I intend to start with this example Here
But my radio shack only had common cathode 7 segment displays and this example uses common anode. I need to just reverse the settings on p0 from the code. except one thing i don't understand. This and some other examples I have found tend to connect the reset pin of the MCU to a capacitor toward the Vcc and a resistor toward ground. Why is this? when this pin is high for 2 cycles the chip resets right? why is this needed here?

List of 24 messages in thread
TopicAuthorDate
New with MCUs need a little help.      Rickey Ward      04/02/10 14:43      
   Hi      Jez Smith      04/02/10 15:30      
      Some answers but now concerns      Rickey Ward      04/02/10 21:36      
         Normally very weak source      Per Westermark      04/02/10 21:41      
            Can't find that detail      Rickey Ward      04/02/10 21:55      
               Not many 805x's have push-pull outputs.      Richard Erlacher      04/02/10 22:21      
         Reset      Jez Smith      04/03/10 00:39      
         SDCC      Jez Smith      04/03/10 00:42      
   Books      Andy Neil      04/03/10 05:02      
   Electronics      Andy Neil      04/03/10 05:05      
   first read "the bible"      Erik Malund      04/03/10 05:56      
      Maybe not First?      Andy Neil      04/03/10 06:09      
         Rickey?      Erik Malund      04/03/10 06:21      
            I am new, Just somthing I wanted to do.      Rickey Ward      04/03/10 10:46      
      Dead links      Rickey Ward      04/03/10 10:50      
         No you are right      Jez Smith      04/03/10 12:47      
            hrm      Rickey Ward      04/03/10 14:32      
               Argh!!!      Jez Smith      04/03/10 14:39      
               It's a highly dynamical thing...      Kai Klaas      04/03/10 15:05      
                  a reset writeup, but you don't want to read it now      Jan Waclawek      04/03/10 15:53      
                     You mean this one?      Kai Klaas      04/03/10 19:52      
                        Thanks      Rickey Ward      04/03/10 22:16      
         not dead, just incorrectly copied      Jan Waclawek      04/03/10 13:56      
            Thanks      Rickey Ward      04/03/10 14:32      

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