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???
04/03/10 03:36
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#174794 - Some answers but now concerns
Responding to: ???'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.            01/01/70 00:00      
   Hi            01/01/70 00:00      
      Some answers but now concerns            01/01/70 00:00      
         Normally very weak source            01/01/70 00:00      
            Can't find that detail            01/01/70 00:00      
               Not many 805x's have push-pull outputs.            01/01/70 00:00      
         Reset            01/01/70 00:00      
         SDCC            01/01/70 00:00      
   Books            01/01/70 00:00      
   Electronics            01/01/70 00:00      
   first read "the bible"            01/01/70 00:00      
      Maybe not First?            01/01/70 00:00      
         Rickey?            01/01/70 00:00      
            I am new, Just somthing I wanted to do.            01/01/70 00:00      
      Dead links            01/01/70 00:00      
         No you are right            01/01/70 00:00      
            hrm            01/01/70 00:00      
               Argh!!!            01/01/70 00:00      
               It's a highly dynamical thing...            01/01/70 00:00      
                  a reset writeup, but you don't want to read it now            01/01/70 00:00      
                     You mean this one?            01/01/70 00:00      
                        Thanks            01/01/70 00:00      
         not dead, just incorrectly copied            01/01/70 00:00      
            Thanks            01/01/70 00:00      

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