STC micro STC8A8K64D4 Series - Page 479

STC8A8K64D4 Series Manual
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P3M0 DATA 0B2H
P4M1 DATA 0B3H
P4M0 DATA 0B4H
P5M1 DATA 0C9H
P5M0 DATA 0CAH
ORG 0000H
LJMP MAIN
ORG 0100H
UART_INIT:
MOV SCON,#5AH
MOV T2L,#0E8H ;65536-11059200/115200/4=0FFE8H
MOV T2H,#0FFH
MOV AUXR,#15H
RET
UART_SEND:
JNB TI,$
CLR TI
MOV SBUF,A
RET
IAP_IDLE:
MOV IAP_CONTR,#0 ;Disable IAP function
MOV IAP_CMD,#0 ;Clear command register
MOV IAP_TRIG,#0 ;Clear trigger register
MOV IAP_ADDRH,#80H ;Set the address to a non-IAP area
MOV IAP_ADDRL,#0
RET
IAP_READ:
MOV IAP_CONTR,#80H ;Enable IAP
MOV IAP_TPS,#12 ;Set the erasing wait parameter of 12MHz
MOV IAP_CMD,#1 ;Set IAP read 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
MOV A,IAP_DATA ;Read IAP data
LCALL IAP_IDLE ;Disable IAP function
RET
IAP_PROGRAM:
MOV IAP_CONTR,#80H ;Enable IAP
MOV IAP_TPS,#12 ;Set the erasing wait parameter of 12MHz
MOV IAP_CMD,#2 ;Set IAP writing command
MOV IAP_ADDRL,DPL ;Set IAP low address
MOV IAP_ADDRH,DPH ;Set IAP high address
MOV IAP_DATA,A ;Write IAP data
MOV IAP_TRIG,#5AH ;Write trigger command (0x5a)
MOV IAP_TRIG,#0A5H ;Write trigger command (0xa5)
NOP
LCALL IAP_IDLE ;Disable IAP function
RET