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???
04/19/05 09:11
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 		 #91908 - No
Responding to: ???'s previous message
Joshua Vavra said:
Should I simply tie together the Clock and Latch Enable inputs and run them to one port pin of the 8051? Theoretically, won't this allow me to output a "1" through software, hitting the clock, transferring the data serially, and then latching that data so that it is displayed until I change it?


Read the data sheet. The simplest arrangement is to tie OE low, and connect LE as a chipselect line.
Clear LE, and drive Data in with a serial bit stream generated by your code. AT EVERY BIT, toggle a "clock" line to the chip. Set LE.

Steve

List of 32 messages in thread
TopicAuthorDate
Tutorial For MAX7219            01/01/70 00:00      
   Maxim            01/01/70 00:00      
   Part of the problem            01/01/70 00:00      
      Read the App Notes            01/01/70 00:00      
   MAX7219            01/01/70 00:00      
   heve you considered the 6275 and 6276            01/01/70 00:00      
      20-20 hindsight            01/01/70 00:00      
      re 6275/6            01/01/70 00:00      
         6275            01/01/70 00:00      
            3.3 to 5 and more            01/01/70 00:00      
               I'm not the guilty party....            01/01/70 00:00      
         16-bit shift+latch+current mirror            01/01/70 00:00      
      Thanks Erik!            01/01/70 00:00      
      Erik: 6275 For Common Cathode Displays?            01/01/70 00:00      
         Anyone Hasve Any Other Suggestions?            01/01/70 00:00      
            How many            01/01/70 00:00      
               # of Displays            01/01/70 00:00      
                  How many DISPLAYS            01/01/70 00:00      
                     In other words            01/01/70 00:00      
            yes            01/01/70 00:00      
            How to wire Common Cathode Displays            01/01/70 00:00      
   What to Use For Clock Source?            01/01/70 00:00      
      Clock confusion            01/01/70 00:00      
         How Does This Match w/ A6276?            01/01/70 00:00      
            DATA sheet ?            01/01/70 00:00      
            Synchronous data transfer            01/01/70 00:00      
               Do I Add A Clock IC?            01/01/70 00:00      
                  NO !            01/01/70 00:00      
                     if no hardware SPI            01/01/70 00:00      
                        Tie Clock and Latch Enable Together?            01/01/70 00:00      
                           No            01/01/70 00:00      
                           if you do            01/01/70 00:00      

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