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???
01/15/10 13:51
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 		 #172487 - Responding to: Andy Neil's previous message
Responding to: ???'s previous message
Thanks for the advice. I've already tried substituting a different microcontroller and seen the same issues, so I think that part is ok. Admittedly, the hardware around the microcontroller is a little rigged, but all the connection seem proper. I'll give those a good probing.

I'm going to take a look at the oscillator frequencies in more detail. From what I've seen so far, the expected SPI output clock frequency matches what the simulator predicts, but it's possible something funny is happening elsewhere.

Are there any timings in particular that you think may be the culprit?

List of 30 messages in thread
TopicAuthorDate
Simulation vs. Embedded Discrepancy            01/01/70 00:00      
   Hardware fault?            01/01/70 00:00      
      Responding to: Andy Neil's previous message            01/01/70 00:00      
   illustration of edge difference?            01/01/70 00:00      
      SPI Phase/Polarity            01/01/70 00:00      
         address instead of value            01/01/70 00:00      
            Doesn't seem coincidental            01/01/70 00:00      
               MOVX command fails            01/01/70 00:00      
                  Definitely sounds like a hardware fault!            01/01/70 00:00      
                  Have you tried doing this in ASM?            01/01/70 00:00      
                     The loop in ASM            01/01/70 00:00      
                        I think...            01/01/70 00:00      
                        Sounds like hardware again            01/01/70 00:00      
                           If this were reduced to the essentials ...            01/01/70 00:00      
                              Oh Richard            01/01/70 00:00      
                        What I was after ...            01/01/70 00:00      
                           Reducing to Essentials            01/01/70 00:00      
                              RE: Magic Switch On The Compiler            01/01/70 00:00      
                                 Emulator trace            01/01/70 00:00      
                                    Yes            01/01/70 00:00      
                                       SOLVED            01/01/70 00:00      
                                          A bit ocnfused            01/01/70 00:00      
                                             Emulator and AUXR            01/01/70 00:00      
                                                Things do tend to work best...            01/01/70 00:00      
   one guess with a question            01/01/70 00:00      
      Memory has plenty of gaps            01/01/70 00:00      
         That doesn't make sense!            01/01/70 00:00      
            Sloppy language on my part            01/01/70 00:00      
      Am I missing something            01/01/70 00:00      
      questions/request            01/01/70 00:00      

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