📄 首页-串口通讯-mcu-单片机c51串口中断接收和发送测试例程.mht
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<P align=3Dleft><FONT =
color=3D#000000>=B2=E2=CA=D4=B7=BD=B7=A8=A3=BA=BF=C9=D2=D4=BD=AB=B4=AE=BF=
=DA=B5=F7=CA=D4=D6=FA=CA=D6=B5=C4=B7=A2=CB=CD=BF=F2=D0=B4=C9=CF 95 10 20 =
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25=A3=AC=B2=A2=D1=A1=C9=CF16=BD=F8=D6=C6=B7=A2=CB=CD=A3=AC=BD=D3=CA=D5=BF=
=F2=D1=A1=C9=CF16=BD=F8=D6=C6=CF=D4=CA=BE=A3=AC=C8=E7=B9=FB=C3=BF=B7=A2=CB=
=CD=D2=BB=B4=CE=BE=CD=BD=D3=CA=D5=B5=BD95 10 20 =
25=A3=AC=CB=B5=C3=F7=B2=E2=CA=D4=B3=C9=B9=A6=A1=A3</FONT></P>
<P align=3Dleft>=CF=C2=D4=D8C=B5=C4=D4=B4=B3=CC=D0=F2=A3=BA =
<A=20
=
href=3D"http://www.gjwtech.com/download/c51testcomm.rar"><IMG border=3D0 =
src=3D"http://www.gjwtech.com/pic/dnldnow.gif" width=3D60 =
height=3D25></A>=20
<P align=3Dleft><B><FONT=20
=
color=3D#008080>//=D5=E2=CA=C7=D2=BB=B8=F6=B5=A5=C6=AC=BB=FAC51=B4=AE=BF=DA=
=BD=D3=CA=D5=A3=A8=D6=D0=B6=CF=A3=A9=BA=CD=B7=A2=CB=CD=C0=FD=B3=CC=A3=AC=BF=
=C9=D2=D4=D3=C3=C0=B4=B2=E2=CA=D451=B5=A5=C6=AC=BB=FA=B5=C4=D6=D0=B6=CF=BD=
=D3=CA=D5</FONT></B>=20
<BR><B><FONT=20
=
color=3D#008080>//=BA=CD=B2=E9=D1=AF=B7=A2=CB=CD=A3=AC=C1=ED=CD=E2=CE=D2=BE=
=F5=B5=C3=B7=A2=CB=CD=C3=BB=D3=D0=B1=D8=D2=AA=D3=C3=D6=D0=B6=CF=A3=AC=D2=F2=
=CE=AA=B3=CC=D0=F2=B5=C4=BF=AA=CF=FA=CA=C7=D2=BB=D1=F9=B5=C4</FONT></B>=20
<BR><B><FONT =
color=3D#008080>//=B3=CC=D0=F2=B1=E0=D0=B4=A3=BA =
=B9=A8=BD=A8=CE=B0 =20
webmaster@gjwtech.com</FONT></B> <BR><B><FONT=20
=
color=3D#008080>//=BC=BC=CA=F5=D6=F7=D2=B3=A3=BAhttp://www.gjwtech.com</F=
ONT></B> <BR><B><FONT=20
=
color=3D#008080>//=C4=FA=D3=D0=D5=E2=B7=BD=C3=E6=B5=C4=CE=CA=CC=E2=BF=C9=D2=
=D4=BA=CD=CE=D2=CC=D6=C2=DB</FONT></B> <BR><BR><BR><B><FONT=20
color=3D#000080>#include</FONT></B> =
<reg51.h><BR><B><FONT=20
color=3D#000080>#include</FONT></B> =
<string.h><BR><BR><B><FONT=20
color=3D#000080>#define</FONT></B> INBUF_LEN <FONT=20
color=3D#800000>4</FONT> <B><FONT=20
=
color=3D#008080>//=CA=FD=BE=DD=B3=A4=B6=C8</FONT></B><BR><BR><B><FONT=20
color=3D#000080>unsigned</FONT></B> <B><FONT=20
color=3D#000080>char</FONT></B> =
inbuf1[INBUF_LEN];<BR><B><FONT=20
color=3D#000080>unsigned</FONT></B> <B><FONT=20
color=3D#000080>char</FONT></B>=20
=
checksum,count3;<BR>bit &n=
bsp; =20
read_flag=3D<FONT color=3D#800000>0</FONT>;<BR><BR><B><FONT=20
color=3D#000080>void</FONT></B> init_serialcomm(<B><FONT=20
color=3D#000080>void</FONT></B>)<BR>{<BR> =
SCON =20
=3D <FONT=20
=
color=3D#800000>0x50</FONT>; =20
<B><FONT color=3D#008080>//SCON: serail mode 1, 8-bit UART, =
enable=20
ucvr</FONT></B> <BR> TMOD |=3D <FONT=20
=
color=3D#800000>0x20</FONT>; =20
<B><FONT color=3D#008080>//TMOD: timer 1, mode 2, 8-bit=20
reload</FONT></B> <BR> PCON |=3D <FONT=20
=
color=3D#800000>0x80</FONT>; =20
<B><FONT color=3D#008080>//SMOD=3D1;</FONT></B> =
<BR> =20
TH1 =3D <FONT=20
=
color=3D#800000>0xF4</FONT>; =20
<B><FONT color=3D#008080>//Baud:4800 =
fosc=3D11.0592MHz</FONT></B>=20
<BR> IE |=3D <FONT=20
=
color=3D#800000>0x90</FONT>; =20
<B><FONT color=3D#008080>//Enable Serial =
Interrupt</FONT></B>=20
<BR> TR1 =3D <FONT=20
=
color=3D#800000>1</FONT>; =
=20
<B><FONT color=3D#008080>// timer 1 run</FONT></B> =
<BR> =20
<B><FONT color=3D#008080>// TI=3D1;</FONT></B> =
<BR>}<BR><BR><B><FONT=20
=
color=3D#008080>//=CF=F2=B4=AE=BF=DA=B7=A2=CB=CD=D2=BB=B8=F6=D7=D6=B7=FB<=
/FONT></B> <BR><B><FONT=20
color=3D#000080>void</FONT></B> send_char_com(<B><FONT=20
color=3D#000080>unsigned</FONT></B> <B><FONT=20
color=3D#000080>char</FONT></B>=20
ch) <BR>{<BR> =20
SBUF=3Dch;<BR> <B><FONT=20
color=3D#000080>while</FONT></B>(TI=3D=3D<FONT=20
color=3D#800000>0</FONT>);<BR> TI=3D<FONT=20
color=3D#800000>0</FONT>;<BR>}<BR><BR><B><FONT=20
=
color=3D#008080>//=CF=F2=B4=AE=BF=DA=B7=A2=CB=CD=D2=BB=B8=F6=D7=D6=B7=FB=B4=
=AE=A3=ACstrlen=CE=AA=B8=C3=D7=D6=B7=FB=B4=AE=B3=A4=B6=C8</FONT></B> =
<BR><B><FONT=20
color=3D#000080>void</FONT></B> send_string_com(<B><FONT=20
color=3D#000080>unsigned</FONT></B> <B><FONT=20
color=3D#000080>char</FONT></B> *str,<B><FONT=20
color=3D#000080>unsigned</FONT></B> <B><FONT=20
color=3D#000080>int</FONT></B> =
strlen)<BR>{<BR> =20
<B><FONT color=3D#000080>unsigned</FONT></B> <B><FONT=20
color=3D#000080>int</FONT></B> k=3D<FONT=20
color=3D#800000>0</FONT>;<BR> <B><FONT=20
color=3D#000080>do</FONT></B> <BR> =20
{<BR> =
send_char_com(*(str=20
+ k));<BR> =20
k++;<BR> } <B><FONT=20
color=3D#000080>while</FONT></B>(k <=20
strlen);<BR>}<BR><BR><BR><B><FONT=20
=
color=3D#008080>//=B4=AE=BF=DA=BD=D3=CA=D5=D6=D0=B6=CF=BA=AF=CA=FD</FONT>=
</B> <BR><B><FONT=20
color=3D#000080>void</FONT></B> serial () interrupt <FONT=20
color=3D#800000>4</FONT> using <FONT =
color=3D#800000>3</FONT>=20
<BR>{<BR> <B><FONT=20
color=3D#000080>if</FONT></B>(RI)<BR> =20
{<BR> <B><FONT=20
color=3D#000080>unsigned</FONT></B> <B><FONT=20
color=3D#000080>char</FONT></B>=20
ch;<BR> RI =3D =
<FONT=20
=
color=3D#800000>0</FONT>;<BR> =20
ch=3DSBUF;<BR> =
<B><FONT=20
color=3D#000080>if</FONT></B>(ch><FONT=20
=
color=3D#800000>127</FONT>)<BR> =
=20
=
{<BR> &n=
bsp;=20
count3=3D<FONT=20
=
color=3D#800000>0</FONT>;<BR> &n=
bsp; =20
=
inbuf1[count3]=3Dch;<BR> &=
nbsp; =20
checksum=3D ch-<FONT=20
=
color=3D#800000>128</FONT>;<BR> =
=20
}<BR> <B><FONT=20
color=3D#000080>else</FONT></B>=20
<BR> =20
=
{<BR> &n=
bsp;=20
=
count3++;<BR> =
=20
=
inbuf1[count3]=3Dch;<BR> &=
nbsp; =20
checksum ^=3D=20
=
ch;<BR> =
=20
<B><FONT color=3D#000080>if</FONT></B>( =
(count3=3D=3D(INBUF_LEN-<FONT=20
color=3D#800000>1</FONT>)) && (!checksum)=20
=
)<BR> &n=
bsp;=20
=
{<BR> &n=
bsp; =20
read_flag=3D<FONT color=3D#800000>1</FONT>; <B><FONT=20
=
color=3D#008080>//=C8=E7=B9=FB=B4=AE=BF=DA=BD=D3=CA=D5=B5=C4=CA=FD=BE=DD=B4=
=EF=B5=BDINBUF_LEN=B8=F6=A3=AC=C7=D2=D0=A3=D1=E9=C3=BB=B4=ED=A3=AC</FONT>=
</B>=20
=
<BR> &nb=
sp; &nbs=
p; =20
<B><FONT =
color=3D#008080>//=BE=CD=D6=C3=CE=BB=C8=A1=CA=FD=B1=EA=D6=BE</FONT></B>=20
=
<BR> &nb=
sp;=20
}<BR> =20
}<BR> =20
}<BR>}<BR><BR><BR>main()<BR>{<BR> =20
init_serialcomm(); <B><FONT =
color=3D#008080>//=B3=F5=CA=BC=BB=AF=B4=AE=BF=DA</FONT></B>=20
<BR> <B><FONT =
color=3D#000080>while</FONT></B>(<FONT=20
color=3D#800000>1</FONT>)<BR> =20
{<BR> =
<B><FONT=20
color=3D#000080>if</FONT></B>(read_flag) <B><FONT=20
=
color=3D#008080>//=C8=E7=B9=FB=C8=A1=CA=FD=B1=EA=D6=BE=D2=D1=D6=C3=CE=BB=A3=
=AC=BE=CD=BD=AB=B6=C1=B5=BD=B5=C4=CA=FD=B4=D3=B4=AE=BF=DA=B7=A2=B3=F6</FO=
NT></B>=20
<BR> =20
=
{<BR> &n=
bsp; =20
read_flag=3D<FONT color=3D#800000>0</FONT>; <B><FONT=20
color=3D#008080>//=C8=A1=CA=FD=B1=EA=D6=BE=C7=E50</FONT></B> =
=
<BR> &nb=
sp; =20
=
send_string_com(inbuf1,INBUF_LEN);<BR>  =
; =20
}<BR> =20
}<BR><BR>}<BR><BR><BR></P></TD></TR></TBODY></TABLE>
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