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???
03/17/05 23:54
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 		 #89888 - timer isr stops
Responding to: ???'s previous message
You are right. The timer isr stops. The timer hardware is probably still running.

We have managed to speed it up to within a few hours or so by sending lots of data through the serial ports. Otherwise we would be going nuts!

In the serial isrs, bits RI, TI, and RI1 and TI1 (scon0 and scon1).

In the timer:
TL0 = 0xFF;
TH0 = 0xB8;
TF0=0;
ET0 = 1; //enable t0 interupt
TR0 = 1; // timer0 enabled again!!!

List of 38 messages in thread
TopicAuthorDate
DS5250 Lockup in ISR's With Priority            01/01/70 00:00      
   Update:            01/01/70 00:00      
      Software Bug            01/01/70 00:00      
      using what            01/01/70 00:00      
         register banks            01/01/70 00:00      
            Shared Data Problem            01/01/70 00:00      
            What stops?            01/01/70 00:00      
               timer isr stops            01/01/70 00:00      
                  Hunting down the ghost            01/01/70 00:00      
   Using different banks            01/01/70 00:00      
      Can't be            01/01/70 00:00      
         stack            01/01/70 00:00      
            more on ISRs            01/01/70 00:00      
         DS5240 has a 1k stack.            01/01/70 00:00      
            but are you using it            01/01/70 00:00      
               Stack            01/01/70 00:00      
   ISRs with Own Register Banks.            01/01/70 00:00      
      Good Questions on ISR's            01/01/70 00:00      
         Shared Data            01/01/70 00:00      
         Not a given            01/01/70 00:00      
            Variable in isr            01/01/70 00:00      
               Sometimes true            01/01/70 00:00      
                  Atomic Operations            01/01/70 00:00      
                     re explosive bytes            01/01/70 00:00      
                        Common Solutions            01/01/70 00:00      
                           Stop's the timer            01/01/70 00:00      
                              Code            01/01/70 00:00      
                        Explosions everywhere            01/01/70 00:00      
                           atomic explosions            01/01/70 00:00      
                              Unreal Time Explosions            01/01/70 00:00      
               Look at the ASM            01/01/70 00:00      
         I have had a very similar problem            01/01/70 00:00      
      ASM instructions & USING            01/01/70 00:00      
         Please do tell us....            01/01/70 00:00      
            Do I really have to?            01/01/70 00:00      
            Brian, Michael            01/01/70 00:00      
               ASM instructions & USING            01/01/70 00:00      
         probably not the case here            01/01/70 00:00      

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