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???
05/15/03 13:12
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#45495 - can not write to port(s) (89s8252)
Here's the program:

#include <89S8252.H>

int main()
{
while(1)
{
for(int x=0;x<0xFF;++x)
{
for(int i=0;i<0xFFFF;++i)
{
P3 = x;
}
}
}

return(0);
}

using keil this program complies and the simulator verifies functionality.

i use the atmel burner program and cable. i can burn the chip and verify that the contents are correct.

schematic:

pins 14-17 ------(4.7k)----| vcc
|
|
(LED)
|
|
(ground)

i reset the chip after the burn and nothing. I even used a digital o-scope to see some activity on the port and nothing.

??? what am i doing wrong. I thought this would be a no-brainer when I started. I've read and read and read. I've bought 4 chips thinking I toasted the last one(x3), but they all function the same.

please help,

Eric

List of 33 messages in thread
TopicAuthorDate
can not write to port(s) (89s8252)            01/01/70 00:00      
   RE: can not write to port(s) (89s8252)            01/01/70 00:00      
      RE: can not write to port(s) (89s8252)            01/01/70 00:00      
   RE: can not write to port(s) (89s8252)            01/01/70 00:00      
   RE: can not write to port(s) (89s8252)            01/01/70 00:00      
      RE: can not write to port(s) (89s8252)            01/01/70 00:00      
         RE: can not write to port(s) (89s8252)            01/01/70 00:00      
   RE: can not write to port(s) (89s8252)            01/01/70 00:00      
      RE: can not write to port(s) (89s8252)            01/01/70 00:00      
         RE: can not write to port(s) (89s8252)            01/01/70 00:00      
            RE: can not write to port(s) (89s8252)            01/01/70 00:00      
            RE: can not write to port(s) (89s8252)            01/01/70 00:00      
               RE: can not write to port(s) (89s8252)            01/01/70 00:00      
      RE: can not write to port(s) (89s8252)            01/01/70 00:00      
         RE: can not write to port(s) (89s8252)            01/01/70 00:00      
   RE: can not write to port(s) (89s8252)            01/01/70 00:00      
      RE: can not write to port(s) (89s8252)            01/01/70 00:00      
         RE: can not write to port(s) (89s8252)            01/01/70 00:00      
   RE: can not write to port(s) (89s8252)            01/01/70 00:00      
      RE: can not write to port(s) (89s8252)            01/01/70 00:00      
         RE: can not write to port(s) (89s8252)            01/01/70 00:00      
   RE: can not write to port(s) (89s8252)            01/01/70 00:00      
      RE: can not write to port(s) (89s8252)            01/01/70 00:00      
      RE: can not write to port(s) (89s8252)            01/01/70 00:00      
   RE: can not write to port(s) (89s8252)            01/01/70 00:00      
      RE: can not write to port(s) (89s8252)            01/01/70 00:00      
   New development:s - final message            01/01/70 00:00      
      RE: New development:s - final message            01/01/70 00:00      
         RE: New development:s - final message            01/01/70 00:00      
   RE: just one more comment            01/01/70 00:00      
      RE: just one more comment            01/01/70 00:00      
         RE: just one more comment            01/01/70 00:00      
   RE: can not write to port(s) (89s8252)            01/01/70 00:00      

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