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???
02/11/09 04:52
Modified:
  02/11/09 07:08
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 		 #162261 - Coming to harware implementation.
Responding to: ???'s previous message
Final steps are there in completing my project. so guys here are components i'll be using:

1. 89S52 MiC with 24 Mhz crystal
2. HEF4094 shift register
3. ULN2803 darling ton array to sink current from columns.


I wonder what to use at rows for providing proper current to leds(as you people say BDX54C is not suitable here).
What should be the resistor values?
what about using UDN2981?(look at it: http://avrprojects.info/files/ima...rcuit.GIF)

I am thinking to write the final code in ASM due to problems of Keil with C and with me (lol)

Looking for your help

List of 35 messages in thread
TopicAuthorDate
C++ and Keil problem            01/01/70 00:00      
   be less suprised,            01/01/70 00:00      
   Keil C51 is _not_ a C++ compiler.            01/01/70 00:00      
   Very old!            01/01/70 00:00      
      Ok guys            01/01/70 00:00      
         Totally missing the point!            01/01/70 00:00      
            Now what is the problem...            01/01/70 00:00      
               Post the full build output            01/01/70 00:00      
                  the code...            01/01/70 00:00      
                     Missing the point again            01/01/70 00:00      
                     No successful output from compiler possible            01/01/70 00:00      
                        C99            01/01/70 00:00      
                           C99 in Keil            01/01/70 00:00      
                     About your Code            01/01/70 00:00      
                        Local variables within inner blocks            01/01/70 00:00      
                           Thanks for correcting me.            01/01/70 00:00      
                              Improved scope            01/01/70 00:00      
   an often missed fact is ...            01/01/70 00:00      
      Coming to harware implementation.            01/01/70 00:00      
         Consultancy fees            01/01/70 00:00      
         will help            01/01/70 00:00      
         problems of Keil with C            01/01/70 00:00      
         New Topic, New Thread            01/01/70 00:00      
   I got the error            01/01/70 00:00      
      C241 Error            01/01/70 00:00      
         RTFM            01/01/70 00:00      
            how to get rid of it?            01/01/70 00:00      
               if something is too big, you need to make it smaller            01/01/70 00:00      
                  Please have a look            01/01/70 00:00      
                     Bounds checking            01/01/70 00:00      
                        Thanks            01/01/70 00:00      
                           But did you look at your code?            01/01/70 00:00      
                              ok            01/01/70 00:00      
                              ISR Problem            01/01/70 00:00      
                                 Start a new thread!            01/01/70 00:00      

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