STC micro STC8A8K64D4 Series - Page 135

STC8A8K64D4 Series Manual
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TI = 0;
busy = 0;
}
if (RI)
{
RI = 0;
}
}
void UartInit()
{
SCON = 0x50;
TMOD = 0x00;
TL1 = BRT;
TH1 = BRT >> 8;
TR1 = 1;
AUXR = 0x40;
busy = 0;
}
void UartSend(char dat)
{
while (busy);
busy = 1;
SBUF = dat;
}
void main()
{
P0M0 = 0x00;
P0M1 = 0x00;
P1M0 = 0x00;
P1M1 = 0x00;
P2M0 = 0x00;
P2M1 = 0x00;
P3M0 = 0x00;
P3M1 = 0x00;
P5M0 = 0x00;
P5M1 = 0x00;
BGV = (int idata *)0xef;
UartInit();
ES = 1;
EA = 1;
UartSend(*BGV >> 8); //Read the high byte of the internal reference voltage
UartSend(*BGV); //Read the low byte of the internal reference voltage
while (1);
}
Assembly code
;Operating frequency for test is 11.0592MHz
AUXR DATA 8EH
BGV DATA 0EFH
BUSY BIT 20H.0
P0M1 DATA 093H