| ??? 10/14/01 01:37 Read: times |
#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 |
| Topic | Author | Date |
| 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 |



