hi i am using at89c51 controller along with jhd162a while printing the number like 1234 it prints as 1133,this error does not happens always, only few times it prints correctly as 1234 ,but most of the time it prints with error as like 1133,even i ve changed the circuit board still it prints with the same error please guide me to solve the problem thanks in advance
only few times did you notice 'time' indicative of a timing error
Erik
Erik - you are now expected to log into his computer, look at the code and suggest improvements. Members on this forum can obviously not help since no code has been posted - remote debugging with zero source code is kind of hard.
hi i tried to upload code but the keil form says service unavailable,the file contains 83KB it might be the reason, if you suggest any other way to upload the file i can do that thaks for the prompt reply
pastebin, google drive, microsoft sky drive? The internet abounds with resources...
I suggest you don't consider uploading 83K of source code. It's unlikely that anyone here would have the time to rummage through it.
hi i have changed circuit board still error not eliminated i have checked with another lcd display though error not eliminated i simulated the code in keil software it works without error i have simulated in proteus VSM the code works fine so i think there may not be nothing wrong with my code is there any common error with AT89s52 or jhd162a? is these device are temperature Dependant? few times i found the same project worked well in the night time but it never worked in the day time,this problem happens only when i pick data from the temporary RAM to display in the LCD, but no problem when the data is taken from EEPROM of controller to display. if the code is needed, suggest me the way to up load the code. i could not upload in the keil form. code size is 83kb
Far more likely to be an error in your code and/or hardware. A common error there would be timing...
Have you used an oscilloscope to verify that the interface timing, etc, is correct?
"i simulated the code in keil software it works without error i have simulated in proteus VSM the code works fine"
So think about the kinds of problems that would not be evident in a simulation...
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