📄 cs5460a芯片读取数据时经常出现读回0的状况,请教各位了_ (ourdev_cn 我们的电子开发社区).mht
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color=3D#000000>124</FONT><BR>=C5=C9=B1=F0=A3=BA<FONT =
color=3D#000000></FONT><BR>=B5=C8=BC=B6=A3=BA<FONT=20
color=3D#000000>------</FONT><BR>=C0=B4=D7=D4=A3=BA<FONT =
color=3D#000000></FONT><BR></TD>
<TD class=3Df03=20
style=3D"BORDER-RIGHT: #bbbbbb 0.5pt solid; BORDER-TOP: #ffffff =
0.5pt solid; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none"=20
vAlign=3Dtop width=3D"81%" bgColor=3D#d1d9e2><FONT=20
=
color=3D#000000>CS5460A=D0=BE=C6=AC=B6=C1=C8=A1=CA=FD=BE=DD=CA=B1=BE=AD=B3=
=A3=B3=F6=CF=D6=B6=C1=BB=D80=B5=C4=D7=B4=BF=F6,=B5=AB=D3=D0=CA=B1=B6=C1=B5=
=C4=CA=FD=BE=DD=D7=BC=C8=B7.=C7=EB=BD=CC=B8=F7=CE=BB=C1=CB.=D3=D0=C8=CB=CB=
=B5=CA=C7SPI=B5=C4=CA=B1=D0=F2=CE=CA=CC=E2.=B5=AB=CF=D6=D4=DA=BB=B9=C3=BB=
=B2=E9=C3=F7!=CF=C2=C3=E6=CA=C7=CE=D2=B5=C4SPI=B5=C4=B6=C1=D0=B4=CA=B1=D0=
=F2.=C7=EB=B4=F3=BC=D2=B0=EF=CE=D2=BF=B4=BF=B4.=20
<BR>//////////////////////////////////////////////////=20
<BR>void send_5460a(unsigned char dat) =
<BR> {=20
<BR> unsigned char i,d=3Ddat;=20
<BR> for(i=3D0;i<8;i++)=20
<BR> {=20
<BR> SCLK=3D0;=20
<BR> if(d&0x80)=20
=
<BR> SDI=3D1; =
=
<BR> else=20
=
<BR> SDI=3D0; =
=
<BR> &nb=
sp; =20
<BR> SCLK=3D1;=20
<BR> d<<=3D1;=20
<BR> SCLK=3D0;=20
<BR> } <BR> SDI=3D1; =
<BR> } <BR>///////////////////////////////////////////=20
<BR>unsigned char receive_5460a(void) <BR> {=20
<BR> unsigned char i,result=3D0;=20
<BR> SDI=3D1; =
<BR> for(i=3D0;i<8;i++)=20
<BR> {=20
<BR> //if(i=3D=3D7)SDI=3D0;=20
<BR> //SCLK=3D0;=20
<BR> result<<=3D1;=20
<BR> SCLK=3D1;=20
<BR> if(SDO)=20
=
<BR> result|=3D1;=20
<BR> SCLK=3D0;=20
<BR> } =
<BR> //SDI=3D1;=20
<BR> return(result); <BR> }=20
<BR>//////////////////////////////////////////////////=20
<BR>void write_5460a(void) <BR> {=20
<BR> unsigned char i;=20
<BR> CS=3D0; =
<BR> NOP();=20
<BR> NOP(); =
<BR> NOP();=20
<BR> send_5460a(buf[0]);=20
=
<BR> //sec=3D 0;=20
=
<BR> //while(SDO&&=
sec< 1000);=20
<BR> for(i=3D1;i<4;i++)=20
<BR> {=20
=
<BR> send_5460a(buf[i]);=20
<BR> }=20
<BR> NOP(); =
<BR> NOP();=20
<BR> NOP();=20
<BR> CS=3D1; =
<BR> }=20
<BR>////////////////////////////////////////////////=20
<BR>void read_5460a(unsigned char cmd) =20
<BR> { =
<BR> unsigned char i;=20
<BR> CS=3D0; =
<BR> NOP();=20
<BR> NOP(); =
<BR> NOP();=20
<BR> send_5460a(cmd);=20
<BR> sec=3D 0; =
=
<BR> while(SDO&&&n=
bsp;sec< 1000);=20
<BR> for(i=3D0;i<3;i++)=20
<BR> {=20
=
<BR> buf[i]=3Dreceive_5460a();=20
<BR> }=20
<BR> NOP(); =
<BR> NOP();=20
<BR> NOP(); =
<BR> CS=3D1;=20
<BR> } =
<BR>//////////////////////////////////////////</FONT>=20
</TD></TR>
<TR>
<TD class=3Df03=20
style=3D"BORDER-RIGHT: #bbbbbb 0.5pt solid; BORDER-TOP: medium none; =
BORDER-LEFT: medium none; BORDER-BOTTOM: #ffffff 0.5pt solid"=20
vAlign=3Dbottom =
bgColor=3D#d1d9e2>__________________________<BR>=BF=D8=D6=C6=C0=E0=B2=FA=C6=
=B7=20
<BR>=CC=D4=B1=A6=B5=EA=A3=BAhttp://shop34384755.taobao.com =
<BR>=C5=A9=BC=D2=CC=EC=CC=EC=B5=D8=A3=AC=CF=D6=D3=D0=B4=F3=C1=BF=B7=E4=C3=
=DB=B3=F6=CA=DB,=D3=D0=D2=E2=D5=DF=C7=EB=D3=EB=CE=D2=C1=AA=CF=B5!=20
<BR>=C1=AA=CF=B5QQ:307502762 <BR></TD></TR>
<TR>
<TD class=3Df03=20
style=3D"BORDER-RIGHT: #ffffff 0.5pt solid; BORDER-TOP: medium none; =
BORDER-LEFT: #bbbbbb 0.5pt solid; BORDER-BOTTOM: #bbbbbb 0.5pt solid"=20
align=3Dleft width=3D"19%" bgColor=3D#d1d9e2><IMG height=3D1=20
src=3D"http://www.ouravr.com/bbs/images/pixel.gif"=20
width=3D7>2007-11-26,20:46:01 </TD>
<TD class=3Df03=20
style=3D"BORDER-RIGHT: #bbbbbb 0.5pt solid; BORDER-TOP: medium none; =
BORDER-LEFT: medium none; BORDER-BOTTOM: #bbbbbb 0.5pt solid"=20
vAlign=3Dtop width=3D"81%" bgColor=3D#d1d9e2 ?>
<TABLE width=3D"100%">
<TBODY>
<TR>
<TD align=3Dleft><IMG height=3D1=20
src=3D"http://www.ouravr.com/bbs/images/pixel.gif" =
width=3D7> <A=20
class=3Dtt4=20
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href=3D"http://www.ouravr.com/bbs/user_information.jsp?user_name=3Dliangx=
liao"=20
target=3D_blank>=D7=CA=C1=CF</A> <IMG height=3D1=20
src=3D"http://www.ouravr.com/bbs/images/pixel.gif" =
width=3D7> <SPAN=20
class=3Df01>=D3=CA=BC=FE</SPAN> <IMG height=3D1=20
src=3D"http://www.ouravr.com/bbs/images/pixel.gif" =
width=3D7> </TD>
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src=3D"http://www.ouravr.com/bbs/images/pixel.gif" =
width=3D2> <IMG=20
height=3D1 =
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<IMG height=3D1 =
src=3D"http://www.ouravr.com/bbs/images/pixel.gif"=20
width=3D2> <IMG height=3D1=20
src=3D"http://www.ouravr.com/bbs/images/pixel.gif" =
width=3D2> <IMG=20
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src=3D"http://www.ouravr.com/bbs/images/pixel.gif" width=3D2>=20
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height=3D1=20
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width=3D7> <IMG=20
height=3D1 =
src=3D"http://www.ouravr.com/bbs/images/pixel.gif" width=3D7>=20
</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
<TABLE style=3D"TABLE-LAYOUT: fixed; WORD-BREAK: break-all" =
cellSpacing=3D0=20
cellPadding=3D6 width=3D"100%" border=3D0>
<TBODY>
<TR>
<TD class=3Df03=20
style=3D"BORDER-RIGHT: #bbbbbb 0.5pt solid; BORDER-TOP: medium none; =
BORDER-LEFT: #bbbbbb 0.5pt solid; BORDER-BOTTOM: #bbbbbb 0.5pt solid"=20
vAlign=3Dtop align=3Dleft width=3D"19%" bgColor=3D#e8e8e8 =
rowSpan=3D2>=A1=BE1=C2=A5=A1=BF <FONT=20
color=3D#000000>liangxliao </FONT><BR>=BB=FD=B7=D6=A3=BA<FONT=20
color=3D#000000>124</FONT><BR>=C5=C9=B1=F0=A3=BA<FONT =
color=3D#000000></FONT><BR>=B5=C8=BC=B6=A3=BA<FONT=20
color=3D#000000>------</FONT><BR>=C0=B4=D7=D4=A3=BA<FONT =
color=3D#000000></FONT><BR></TD>
<TD class=3Df03=20
style=3D"BORDER-RIGHT: #bbbbbb 0.5pt solid; BORDER-TOP: medium none; =
BORDER-LEFT: medium none; BORDER-BOTTOM: medium none"=20
vAlign=3Dtop width=3D"81%" bgColor=3D#e8e8e8><FONT =
color=3D#000000>=D7=D4=BC=BA=B6=A5=D2=BB=CF=C2=C1=CB<IMG=20
src=3D"http://www.ouravr.com/bbs/emotion/em035.gif"></FONT> =
</TD></TR>
<TR>
<TD class=3Df03=20
style=3D"BORDER-RIGHT: #bbbbbb 0.5pt solid; BORDER-TOP: medium none; =
BORDER-LEFT: medium none; BORDER-BOTTOM: #bbbbbb 0.5pt solid"=20
vAlign=3Dbottom =
bgColor=3D#e8e8e8>__________________________<BR>=BF=D8=D6=C6=C0=E0=B2=FA=C6=
=B7=20
<BR>=CC=D4=B1=A6=B5=EA=A3=BAhttp://shop34384755.taobao.com =
<BR>=C5=A9=BC=D2=CC=EC=CC=EC=B5=D8=A3=AC=CF=D6=D3=D0=B4=F3=C1=BF=B7=E4=C3=
=DB=B3=F6=CA=DB,=D3=D0=D2=E2=D5=DF=C7=EB=D3=EB=CE=D2=C1=AA=CF=B5!=20
<BR>=C1=AA=CF=B5QQ:307502762 <BR></TD></TR>
<TR>
<TD class=3Df03=20
style=3D"BORDER-RIGHT: #bbbbbb 0.5pt solid; BORDER-TOP: medium none; =
BORDER-LEFT: #bbbbbb 0.5pt solid; BORDER-BOTTOM: #bbbbbb 0.5pt solid"=20
align=3Dleft width=3D"19%" bgColor=3D#e8e8e8><IMG height=3D1=20
src=3D"http://www.ouravr.com/bbs/images/pixel.gif"=20
width=3D7>2007-11-26,21:36:50 </TD>
<TD class=3Df03=20
style=3D"BORDER-RIGHT: #bbbbbb 0.5pt solid; BORDER-TOP: medium none; =
BORDER-LEFT: medium none; BORDER-BOTTOM: #bbbbbb 0.5pt solid"=20
vAlign=3Dtop width=3D"81%" bgColor=3D#e8e8e8 ?>
<TABLE width=3D"100%">
<TBODY>
<TR>
<TD align=3Dleft><IMG height=3D1=20
src=3D"http://www.ouravr.com/bbs/images/pixel.gif" =
width=3D7> <A=20
class=3Dtt4=20
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href=3D"http://www.ouravr.com/bbs/user_information.jsp?user_name=3Dliangx=
liao"=20
target=3D_blank>=D7=CA=C1=CF</A> <IMG height=3D1=20
src=3D"http://www.ouravr.com/bbs/images/pixel.gif" =
width=3D7> <SPAN=20
class=3Df01>=D3=CA=BC=FE</SPAN> <IMG height=3D1=20
src=3D"http://www.ouravr.com/bbs/images/pixel.gif" =
width=3D7> </TD>
<TD align=3Dright><IMG height=3D1=20
src=3D"http://www.ouravr.com/bbs/images/pixel.gif" =
width=3D2> <IMG=20
height=3D1 =
src=3D"http://www.ouravr.com/bbs/images/pixel.gif" width=3D2>=20
<IMG height=3D1 =
src=3D"http://www.ouravr.com/bbs/images/pixel.gif"=20
width=3D2> <IMG height=3D1=20
src=3D"http://www.ouravr.com/bbs/images/pixel.gif" =
width=3D2> <IMG=20
height=3D1 =
src=3D"http://www.ouravr.com/bbs/images/pixel.gif" width=3D2>=20
<IMG height=3D1 =
src=3D"http://www.ouravr.com/bbs/images/pixel.gif"=20
width=3D2> <IMG height=3D1=20
src=3D"http://www.ouravr.com/bbs/images/pixel.gif" =
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src=3D"http://www.ouravr.com/bbs/images/pixel.gif" width=3D2>=20
<IMG height=3D1 =
src=3D"http://www.ouravr.com/bbs/images/pixel.gif"=20
width=3D2> <SPAN class=3Df01>=B1=E0=BC=AD</SPAN> <IMG =
height=3D1=20
src=3D"http://www.ouravr.com/bbs/images/pixel.gif" =
width=3D7> <SPAN=20
class=3Df01>=C9=BE=B3=FD</SPAN> <IMG height=3D1=20
src=3D"http://www.ouravr.com/bbs/images/pixel.gif" =
width=3D7> <IMG=20
height=3D1 =
src=3D"http://www.ouravr.com/bbs/images/pixel.gif" width=3D7>=20
</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
<TABLE style=3D"TABLE-LAYOUT: fixed; WORD-BREAK: break-all" =
cellSpacing=3D0=20
cellPadding=3D6 width=3D"100%" border=3D0>
<TBODY>
<TR>
<TD class=3Df03=20
style=3D"BORDER-RIGHT: #ffffff 0.5pt solid; BORDER-TOP: #ffffff =
0.5pt solid; BORDER-LEFT: #bbbbbb 0.5pt solid; BORDER-BOTTOM: #ffffff =
0.5pt solid"=20
vAlign=3Dtop align=3Dleft width=3D"19%" bgColor=3D#d1d9e2 =
rowSpan=3D2>=A1=BE2=C2=A5=A1=BF <FONT=20
color=3D#000000>liangxliao </FONT><BR>=BB=FD=B7=D6=A3=BA<FONT=20
color=3D#000000>124</FONT><BR>=C5=C9=B1=F0=A3=BA<FONT =
color=3D#000000></FONT><BR>=B5=C8=BC=B6=A3=BA<FONT=20
color=3D#000000>------</FONT><BR>=C0=B4=D7=D4=A3=BA<FONT =
color=3D#000000></FONT><BR></TD>
<TD class=3Df03=20
style=3D"BORDER-RIGHT: #bbbbbb 0.5pt solid; BORDER-TOP: #ffffff =
0.5pt solid; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none"=20
vAlign=3Dtop width=3D"81%" bgColor=3D#d1d9e2><FONT=20
=
color=3D#000000>=C4=C4=CE=BB=B4=F3=B8=E7=D6=B8=B5=E3=D2=BB=CF=C2=C1=CB!</=
FONT> </TD></TR>
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