STC micro STC8A8K64D4 Series Reference Manual page 478

STC8A8K64D4 Series Manual
IAP_CONTR = 0x80;
IAP_TPS = 12;
IAP_CMD = 3;
IAP_ADDRL = addr;
IAP_ADDRH = addr >> 8;
IAP_TRIG = 0x5a;
IAP_TRIG = 0xa5;
_nop_();
IapIdle();
}
void main()
{
P0M0 = 0x00;
P0M1 = 0x00;
P1M0 = 0x00;
P1M1 = 0x00;
P2M0 = 0x00;
P2M1 = 0x00;
P3M0 = 0x00;
P3M1 = 0x00;
P4M0 = 0x00;
P4M1 = 0x00;
P5M0 = 0x00;
P5M1 = 0x00;
UartInit();
IapErase(0x0400);
UartSEND(IapRead(0x0400));
IapProgram(0x0400, 0x12);
UartSEND(IapRead(0x0400));
while (1);
}
Assembly code
;Operating frequency for test is 11.0592MHz
AUXR DATA
T2H DATA
T2L DATA
IAP_DATA DATA
IAP_ADDRH DATA
IAP_ADDRL DATA
IAP_CMD DATA
IAP_TRIG DATA
IAP_CONTR DATA
IAP_TPS DATA
P0M1 DATA
P0M0 DATA
P1M1 DATA
P1M0 DATA
P2M1 DATA
P2M0 DATA
P3M1 DATA
8EH
0D6H
0D7H
0C2H
0C3H
0C4H
0C5H
0C6H
0C7H
0F5H
093H
094H
091H
092H
095H
096H
0B1H
//Enable IAP
//Set the erasing wait parameter of 12MHz
//Set IAP erasing command
//Set IAP low address
//Set IAP high address
//Write trigger command (0x5a)
//Write trigger command (0xa5)
//
//Disable IAP function
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