IAP_ERASE:
MOV IAP_CONTR,#80H ;Enable IAP
MOV IAP_TPS,#12 ;Set the erasing wait parameter of 12MHz
MOV IAP_CMD,#3 ;Set IAP erasing command
MOV IAP_ADDRL,DPL ;Set IAP low address
MOV IAP_ADDRH,DPH ;Set IAP high address
MOV IAP_TRIG,#5AH ;Write trigger command (0x5a)
MOV IAP_TRIG,#0A5H ;Write trigger command (0xa5)
NOP
LCALL IAP_IDLE ;Disable IAP function
RET
MAIN:
MOV SP, #5FH
MOV P0M0, #00H
MOV P0M1, #00H
MOV P1M0, #00H
MOV P1M1, #00H
MOV P2M0, #00H
MOV P2M1, #00H
MOV P3M0, #00H
MOV P3M1, #00H
MOV P4M0, #00H
MOV P4M1, #00H
MOV P5M0, #00H
MOV P5M1, #00H
LCALL UART_INIT
MOV DPTR,#0400H
LCALL IAP_ERASE
MOV DPTR,#0400H
LCALL IAP_READ
LCALL UART_SEND
MOV DPTR,#0400H
MOV A,#12H
LCALL IAP_PROGRAM
MOV DPTR,#0400H
LCALL IAP_READ
LCALL UART_SEND
SJMP $
END
16.4.4 UART1 reads and writes EEPROM - Read using MOVC
C language code (main.c)
//Operating frequency for test is 11.0592MHz
/* This program is completely normal after testing, and does not provide telephone technical support. If you cannot understand it,
please supplement the relevant basis yourself. */
/************* Function description of this program **************
STC8G family MCUs EEPROM general test program.