| ??? 11/12/03 15:12 Read: times |
#58398 - RE: How to access internal EEPROM of 89S8252 Responding to: ???'s previous message |
EEMEN EQU 00001000b
EEMWE EQU 00010000b WMCON DATA 96h ;**** Read EEPROM @DPTR in A READEEP: ORL WMCON,#EEMEN ; Enable EEPROM MOVX A,@DPTR ; EEPROM @DPTR > A XRL WMCON,#EEMEN ; Disable EEPROM RET ;**** Write EEPROM @DPTR in A WREEPROM: ORL WMCON,#EEMEN ; Enable EEPROM (Read) ORL WMCON,#EEMWE ; Enable write MOVX @DPTR,A WREEPR1: MOV A,WMCON ; Status ANL A,#WDTRST ; Check RDY/BSY' JZ WREEPR1 ; Wait for RDY XRL WMCON,#EEMWE ; Disable write XRL WMCON,#EEMEN ; Disable EEPROM RET $eject |
| Topic | Author | Date |
| How to access internal EEPROM of 89S8252 | 01/01/70 00:00 | |
| RE: How to access internal EEPROM of 89S | 01/01/70 00:00 | |
| RE: How to access internal EEPROM of 89S8252 | 01/01/70 00:00 | |
RE: How to access internal....Thanks.. | 01/01/70 00:00 |