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10/14/01 01:37
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#15656 - RE: interfacing 93C46 with 89C51
At first glance you are using some of the development board which load the program in SRAM starting at location 8000H.
As I can see from your program you execute a LJMP at 8000H starting execution from there.
But only one shot (I mean multiple entries on display routine) since you have a close loop at 8025H - 802BH.
Maybe that is what you really want to do. But I don't see any reference to 8050H address, yours read routine.
Maybe you call 8050H from your display routine.
Thus, I don't understand what you try to do. Maybe write in one of the EEPROM's location followed by a read to see if data was placed succesfully in memory.

I have to admit I hadn't parse all the code, thus I'm unable to tell you if all the access to EEPROM are corect.
As a matter of fact it's very hard parsing since you use hex code for SFR.
If you come back with more details I promise to substitute all the variables in order to have a better view of your code.

P.S. Since you short to ground the ORG pin, this means you need 8 bits data.

Best regards,
Silviu

List of 7 messages in thread
TopicAuthorDate
interfacing 93C46 with 89C51            01/01/70 00:00      
RE: interfacing 93C46 with 89C51            01/01/70 00:00      
RE: interfacing 93C46 with 89C51            01/01/70 00:00      
RE: interfacing 93C46 with 89C51            01/01/70 00:00      
RE: interfacing 93C46 with 89C51            01/01/70 00:00      
RE: interfacing 93C46 with 89C51            01/01/70 00:00      
RE: interfacing 93C46 with 89C51            01/01/70 00:00      

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