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???
10/21/10 04:31
Modified:
  10/21/10 05:55
Read: times


 
Msg Score: -2
 -2 Answer is Wrong		 #179224 - Are you using the limited version of KEIL? the for loop....
Responding to: ???'s previous message
I mean all you're trying to do is make an LED go on and off. The simplest explanation that comes to mind is that you're new to KEIL and have not realized that they offset their starting point in the "evaluation" or "limited" version. As shown here:

http://www.keil.com/demo/limits.asp

Programs start at offset 0x0800. Programs generated with the evaluation software may not be programmed into single-chip devices with less than 2 Kbytes of on-chip ROM.


The second obvious portion is that you could be optimizing which I bet is doubtful. Plus I have never seen a for loop written in this manner:

for (i = 0x01; i; i <<= 1)

i is instantiated as 0x01, the for loop never compares or just makes sure i is 1? isn't supposed to be "i < 0x80" in the middle?

for (i = 0x80; i; i >>= 1)

and "i > 0x01" in the middle?

If i never satisfies a condition the for loop never stops and last I checked I did not think i was a condition. Well the i condition is more like -> i is not 0.

I do not have enough eyes to see what you're doing with your i's!

List of 49 messages in thread
TopicAuthorDate
p89lpc936 keil programming help required.            01/01/70 00:00      
   magic code?            01/01/70 00:00      
      mov 0A5H,#0FFH            01/01/70 00:00      
   a glaring difference            01/01/70 00:00      
      a glaring difference            01/01/70 00:00      
         what happens if            01/01/70 00:00      
            what happens if            01/01/70 00:00      
               BiDir or PushPull            01/01/70 00:00      
               I leave it to you            01/01/70 00:00      
                  magic code?            01/01/70 00:00      
                  I leave it to you            01/01/70 00:00      
                     1) formatted, 2)commented, 3) correct            01/01/70 00:00      
                        1) formatted, 2)commented, 3) correct            01/01/70 00:00      
                           it is STILL two different things            01/01/70 00:00      
                              Apples and Orange Juice            01/01/70 00:00      
                                 Please focus on the problem i have            01/01/70 00:00      
                                    Software delay loop in C is a no-no            01/01/70 00:00      
                                       Software delay loop in C is a no-no            01/01/70 00:00      
                                          Reduce problem into smaller problems            01/01/70 00:00      
                                             Reduce problem into smaller problems            01/01/70 00:00      
                                             Simulator vs real hardware            01/01/70 00:00      
                                             Current limits            01/01/70 00:00      
                                             Per Westermark's previous message            01/01/70 00:00      
                                                Delay speed            01/01/70 00:00      
                                                   Elaborate            01/01/70 00:00      
                                                      tried 5 for the '51 and Keil won            01/01/70 00:00      
                                    the problem you have is ...            01/01/70 00:00      
                                       the problem you have is ...            01/01/70 00:00      
                                          do you have LEDs connected to the simulator?            01/01/70 00:00      
                                          not executing on actual hardware while simulator is fine            01/01/70 00:00      
                                    Oh So Focused            01/01/70 00:00      
   Double-post            01/01/70 00:00      
   Are you using the limited version of KEIL? the for loop....            01/01/70 00:00      
      valid C            01/01/70 00:00      
         Thats the point            01/01/70 00:00      
            nope            01/01/70 00:00      
               I wouldnt trust it            01/01/70 00:00      
                  if you do not trust it ....            01/01/70 00:00      
               And if you trust it so much why doesnt it work?            01/01/70 00:00      
                  And if you trust it so much why doesnt it work?            01/01/70 00:00      
                     trust, yes, but knowledge also required            01/01/70 00:00      
                  wait call + assumptions about two-complement, ...            01/01/70 00:00      
                     The C Standard            01/01/70 00:00      
                        who is "you"?            01/01/70 00:00      
            Yes, you can!            01/01/70 00:00      
      Quite common loop design for bit operations            01/01/70 00:00      
      for( expression-1; expression-2; expression-3 ) [ed]            01/01/70 00:00      
         erratum            01/01/70 00:00      
            Corrigendum            01/01/70 00:00      

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