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Erik Malund
01/01/13 08:26
Read: 870 times
Mt Airy, Nc
USA


 
#189056 - pointers to check in the datasheets
Responding to: Steph Ru's previous message
I get somewhat erratic operation in the display (unexpected results, etc.). Most of this comes from a mem-mapped I/O device in the XDATA space
IIRC the RC(2) uses fewer cycles to access external memory and displays are notoriouly slow
I believe the 6 clockers have aN SFR or similar bit to set the thing to 12 cycles

Erik

List of 5 messages in thread
TopicAuthorDate
80C52 vs. AT89C51RC vs. AT89C51RC2      Steph Ru      12/31/12 23:53      
   pointers to check in the datasheets      Erik Malund      01/01/13 08:26      
   Check Atmel for 'migrating' docs      Jim Granville      01/01/13 12:58      
      80C52 vs. AT89C51RC vs. AT89C51RC2       Steph Ru      01/01/13 22:55      
         Try a sanity check pin toggle       Jim Granville      01/04/13 16:53      

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