?? ser8251.h
字號:
void ser8251init(unsigned char tbaud) reentrant
{
unsigned int tem = 0;
unsigned char cursernu;
switch(tbaud)
{
case 1://2400
SERCOM8253=0x36;
SERA8253=0x30;
SERA8253=0x00;
break;
case 2://4800
SERCOM8253=0x36;
SERA8253=0x24;
SERA8253=0x00;
break;
case 3://9600
SERCOM8253=0x36;
SERA8253=0x0C;
SERA8253=0x00;
break;
default://9600
SERCOM8253=0x36;
SERA8253=0x0C;
SERA8253=0x00;
break;
}
SERCOM8251=0xFF;
DelayMs(50);
SERCOM8251=0x4E;
SERCOM8251=0x14;
cursernu = 0;
while(cursernu<0xFE)
{
cursernu++;
tem = SERCOM8251;
SERCOM8251=0xFF;
DelayMs(50);
SERCOM8251=0x4E;
SERCOM8251=0x14;
if(tem==0x85)
break;
}
IT0=0;
EX0 = 1;
}
void get8251ser(void) reentrant
{
rs232in=SERDAT8251;
}
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