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$B$3$N$h$&$K$d$dLLE]$J$3$H$r$7$F$$$k$N$O!"(BFIFO$B%P%C%U%!$N!V%7%j%"%k>pJs$N;~4VE*L)EY$r5[<}$9$k!W$H$$$&FC@-$+$i$G$9!#?^(B2-3-11$B$O!"(BFIFO$B%P%C%U%!$r;H$&%1!<%9$r<($7$?$b$N$G!"$"$k;~$K$O;~4VE*$K9b$$L)EY$G%G!<%?$,$d$C$F$-$F!"$"$k;~$K$O%G!<%?$,$[$H$s$IMh$J$$4|4V$b$"$k!"$H$$$&$b$N$G$9!#(BMIDI$B>pJs$O$^$5$K$3$l$G!"Nc$($P%8%c%:%T%"%K%9%H$,N><j$G(B4$BOB2;$r9o$s$G$$$k>l9g!"OB2;$N$?$S$K(B8$B2;(B(=24$B%P%$%H(B)$B$N(BMIDI$B?.9f$,0l5$$K=P$^$9$,!"2;Id$H2;Id$N4V3V$O%9%+%9%+$K6u$$$F$$$^$9!#$3$N>l9g!"%7%j%"%k<u?.3d$j9~$_$N3d$j9~$_%k!<%A%sFb$G$N=hM}$K$b$?$b$?$7$F$$$k$H!"<!$N<u?.3d$j9~$_$K4V$K9g$o$J$/$F%G!<%?<u?.$,7gMn$7$^$9!#I.<T$,!V(BArduino$B$O(BMIDI$B$K;H$($J$$!W(B(2-1)$B$H=q$$$?$N$O!"(BArduino$B$,$A$g$C$H$7$?OB2;$G$b<u$1B;$M$F!V2;$,>C$($J$$!W>uBV$K4Y$k$3$H$r3NG'$7$?$+$i$G$9!#@8BN?.9f$K$O!V@8BN%j%:%`!W(B($B?4Go!"8F5[!"H?I|1?F0$J$I(B)$B$,$"$j!"$^$5$K$3$N$h$&$J!VABL)$N$"$k!W>pJs$J$N$G!"$=$N%7%j%"%k>pJsEAAw$K(BFIFO$B$O:GE,$G$9!#(B

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$B?^(B2-3-12$B$O!"(BNucleoF401RE$B$K%j%9%H(B2-3-2$B$N%W%m%0%i%`$rAv$i$;$F!"%[%9%H(BPC$B$N(BMa6$BB&$G<B83$7$F$$$kMM;R$G$9!#(BNucleoF401RE$B$+$i$O!V@8B8>ZL@!W$H$7$FLs(B0.5$BIC4V3V$G%$%s%/%j%a%s%H%G!<%?$,(BXBee$B7PM3$GAw?.$5$l(B($B2hLL$N!V(B3E1$B!W(B)$B!"F1;~$K%[%9%H(BPC$B$N(BMa6$B$G$O!V(Bmetro$B!W$G(B23$B%S%C%H%+%&%s%?$r%$%s%/%j%a%s%H$7$F(BXBee$B7PM3$G(BNucleoF401RE$B$KAw$k4V3V$,!"!V(B45msec$B!W$G$"$C$F$b0BDj$7$F3N<B$K%G!<%?$,%(%3!<%P%C%/$5$l!"%0%i%UI=<($5$l$F$$$^$9!#(B $B%[%9%H(BPC$B$OF1;~$K(BMa6$B%W%m%0%i%`$+$i(B440Hz$B$H(B880Hz$B$N%5%$%sGH$r!V(BUSB$B%*!<%G%#%*<#6q!W$r7PM3$7$F=PNO$7$F$$$F!"$3$l$b%[%9%H(BPC$B$K@\B3$5$l$?(BUSB$B%*%7%m%9%3!<%W(B/$B%9%Z%/%H%k%"%J%i%$%6$G7WB,I=<($7$F$$$^$9!#$3$N$h$&$K!V(B45msec$B!W!"0BA478?t$r8+$F(B50msec$B$H$9$l$P!VKhIC(B20$B2s!W$N%l!<%H$G!"(B7$B%P%$%H%U%)!<%^%C%H$N%G!<%?$r0BDj$K%[%9%H$H(BXBee$B%7%j%"%kL5@~$G1}I|$G$-$k!"$H$$$&$N$O!"7P83E*$K$J$+$J$+$NG=NO$H8@$($^$9!#(B

($B?^(B2-3-12$B!!(BXBee$BAPJ}8~DL?.$r<B83$9$k(BMax$B%Q%C%A2hLLNc(B)

$B!|%?%$%^3d$j9~$_(B

NucleoF401RE$B$G(BA/D$BJQ49$7$?@8BN>pJs$r?.9f=hM}$9$k$K$O!"@53N$J!V;~4V!W$,I,MW$H$J$j$^$9!#>e=R$N%=%U%H%?%$%^!"$D$^$j%a%$%s%k!<%W$NCf$G8F$P$l$k$?$S$K%$%s%/%j%a%s%H$5$l$kJQ?t$H$$$&$N$O!"%a%$%s%k!<%W$G8F$P$l$kB>$N=hM}$K$h$C$FITDj4|$K1d$S$k$N$G!"$3$N?tCM$r;~4VE*$J4p=`$H$9$k$H!"8m:9$,$I$s$I$sA}Bg$7$^$9!#$=$3$G!"%7%9%F%`!&%?%$%^$N3d$j9~$_$K$h$C$F!"=hM}$K1F6A$5$l$J$$!VEy4V3V$N;~4V4p=`!W$r:n$kI,MW$,$"$j$^$9!#(B

mbed$B$G$O!"HsF14|%7%j%"%k<u?.$HF1$8$h$&$J7A<0(B(attach)$B$G!"%?%$%^3d$j9~$_%O%s%I%i$rDj5A$G$-$^$9!#%j%9%H(B2-3-3$B$N%W%m%0%i%`$G$O!"!V(Btimer_setup.attach_us(&timer_interrupt, 100);$B!W$H!"3d$j9~$_<~4|$r%^%$%/%mICC10L$G!V(B100$B!W$H@_Dj$7$F$$$^$^$9!#$D$^$j!V(B0.1msec$B!W$4$H$K%?%$%^3d$j9~$_$,5/$-$F!"$3$3$G$O!V(Btimer_value[5];$B!W$H(B5$B<oN`$N%?%$%^!<$rDj5A$7$?$=$l$>$l$NCM$r%$%s%/%j%a%s%H$7$?>e$G!"(B16$B%S%C%H%^%9%/$G(B0$B!A(B65535$B$NCM$K$7$F$$$^$9!#(B

($B%j%9%H(B2-3-3)

$B%j%9%H(B2-3-3$B$N$N(BNucleoF401RE$B%a%$%s%k!<%A%s$NJ}$G$O!"%\!<%I>e$N(BLED$B$r(B5000$B%+%&%s%H!"$D$^$j(B500msec$B$GE@LG$5$;$D$D!"$5$i$K%7%j%"%kAw?.$H$7$F(B10000$B%+%&%s%H!"$D$^$j(B1$BIC$4$H$K%$%s%/%j%a%s%HAw?.$7$F$$$^$9!#;n$7$K$3$N3d$j9~$_<~4|$r%^%$%/%mICC10L$G!V(B10$B!W$K!"$D$^$j!V(B0.01msec$B!W$4$H$K%?%$%^3d$j9~$_$,5/$-$k$h$&$K$9$k$H!"%\!<%I>e$N(BLED$B$NE@LG$OJQ2=$,$"$j$^$;$s$,!"%7%j%"%kDL?.$NJ}$O%G!<%?$,Aw$j$-$l$:7gMn$7$^$7$?!#$3$l$O!"%7%j%"%k<u?.3d$j9~$_=hM}$N4|4V$K!"$5$i$K%?%$%^3d$j9~$_$,6%9g$9$k$?$a$G$9!#$J$*!"!zJdB-2r@b(B2$B$K$"$k$h$&$K!"K\%7%9%F%`$N>l9g$K$O%[%9%H(BPC$B$H(BXBee$B7PM3$G%a%C%;!<%88r49$9$k:GBg@-G=(B(1$B%a%C%;!<%8$rO"B3EAAw$9$k=jMW;~4V(B)$B$O!VLs(B2$B%_%jIC!W$G$9!#(B

==================
$B!zJdB-2r@b(B2$B!!$3$3$+$i"-(B

$BK\%7%9%F%`$G%[%9%H(BPC$B$H(BXBee$B7PM3$G%7%j%"%kDL?.$9$kEAAwB.EY$N:GBg@-G=$K$D$$$F@0M}$7$^$9!#:#2s$NDL?.B.EY$O!"(B38400bps$B!"$D$^$j!VKhIC(B38400$B%S%C%H!W$N%7%j%"%kDL?.$G$9!#(B $B%U%)!<%^%C%H$O(Bmbed$B$N%7%j%"%k4D6-$N(Bdefault$B$N$^$^$G!"(B

    void format 	( 	int  	bits = 8,
    		Parity  	parity = SerialBase::None,
    		int  	stop_bits = 1 
    	) 		[inherited]

    Parameters:
        bits	The number of bits in a word (5-8; default = 8)
        parity	The parity used (SerialBase::None, SerialBase::Odd, SerialBase::Even; default = SerialBase::None)
        stop	The number of stop bits (1 or 2; default = 1) 

$B$H$$$&$3$H$G!"(B
	$B!&%G!<%?(B8$B%S%C%H(B
	$B!&%Q%j%F%#%S%C%HL5$7(B
	$B!&%9%H%C%W%S%C%H(B=1$B%S%C%H(B
	$B!&%9%?!<%H%S%C%H(B=1$B%S%C%H(B
$B$H$$$&7A<0$G!"(B1$B%P%$%H$NE>Aw$K$O7W(B10$B%S%C%H$,I,MW$G$9!#(B

$B$=$3$G!VKhIC(B38400$B%S%C%H!W"*!VKhIC(B3840$B%G!<%?!W(B=$B!V(B1msec$B$"$?$j(B3.84$B%G!<%?!W$H$J$j$^$9!#K\%7%9%F%`$N%G!<%?E>Aw%U%)!<%^%C%H$O(B1$B%a%C%;!<%8$,!V(B6$B%P%$%H(BHEX(24$B%S%C%H%G!<%?(B)+1$B%P%$%H(B(cr)$B!W$N7W(B7$B%G!<%?$J$N$G!"(B1$B%a%C%;!<%8$NE>Aw$K$+$+$k:G>.;~4V(B($B:GBg@-G=(B)$B$O!VLs(B1.823msec$B!W$H$$$&;v$K$J$j!"%.%C%7%j$H%G!<%?$,O"B3$7$F$$$k$H$$$&M}O@CM$G$O!"KhIC$"$?$j(B548$B%a%C%;!<%8$[$I$NEAAw$,8B3&$H$J$j$^$9!#(B 

$B!zJdB-2r@b(B2$B!!$3$3$^$G",(B
==================

$B!|(BA/D$BJQ49F~NO(B - $B%]!<%j%s%0$H9bB.JQ49(B

NucleoF401RE$B$N%"%J%m%0F~NO$N(BA/D$B%3%s%P!<%?$N%9%Z%C%/$O!V(B12bit ADC 2.4 Msps up to 10 channels$B!W$H$"$j$^$9!#=>Mh$N%^%$%3%sFbB"(BA/D$B%3%s%P!<%?$H$+C1FH$N(BA/D$B%3%s%P!<%?!&%A%C%W$G$O!"(B
	$B!&!V%;%H%j%s%0;~4V!W(B($BF~NOEE05$r%5%s%W%k(B/$B%[!<%k%I$7$F(BA/D$BJQ49$r3+;O$9$k$^$G$N;~4V(B)
	$B!&!V%3%s%P!<%8%g%s;~4V!W(B($B%S%C%H$4$H$KC`<!Hf3S$9$k%9%F%C%W$N9g7W$G!"(BA/D$BJQ49$,40N;$9$k$^$G$N;~4V(B)
$B$J$I$N%Q%i%a!<%?$,$"$j$^$7$?!#$3$l$KBP1~$7$F!"%^%$%3%s$NFbIt$K!"%7%j%"%kDL?.%]!<%H$HF1MM$K!"!V(BA/D$BJQ49$,=*N;$7$?$i3d$j9~$_!W$H$$$&5!9=$H$+!"!V(BA/D$BJQ49Cf$N%U%i%0(B($B"+$3$l$r%]!<%j%s%0$9$k(B)$B!W$,40Hw$7$F$$$^$7$?!#(B

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CD$B%*!<%G%#%*$,(B44.1KHz$B%5%s%W%j%s%0!":G6aOCBj$N%O%$%l%>%*!<%G%#%*$G$9$i(B128KHz$B%5%s%W%j%s%0$J$N$K!"!V(B250KHz$B!W$H$$$&$N$O$=$l$h$j$b9b@-G=$G$"$j!"6ZEE>pJs$G$"$l$P!V(B1000Hz$B%5%s%W%j%s%0!W$G==J,$J$N$G!"$^$C$?$/M>M5$N6KCW!"$H$$$&;v$K$J$j$^$7$?!#(B $B$=$3$GK\%7%9%F%`(B($B6ZEE>pJs%7%9%F%`(B)$B$N(BNucleoF401RE$B$N(BA/D$BJQ49$K$D$$$F$O!"%;%H%j%s%0;~4V$d%3%s%P!<%8%g%s;~4V$rL5;k$7$F!"%5%s%W%j%s%0<~4|$N4p=`$r%?%$%^!<3d$j9~$_$N@:EY$G@_Dj$7!"%?%$%^%$%Y%s%HFb$G!V(BA/D$B%G!<%?$rMW5a$9$k!W(B($BJV$C$F$/$k$N$rBT$D(B)$B$H$$$&%7%s%W%k$J%3!<%I$G==J,!"$H7kO@$E$1$^$7$?!#(B $B<B:]$K(Bmbed$B%5%$%H$G8x3+$5$l$F$$$k(BNucleoF401RE$B%5%s%W%k%3!<%I$rD4$Y$F$_$^$7$?$,!"F1$8<jK!$G(BA/D$BJQ49$r<BAu$7$F$$$^$7$?!#(B

$B$5$F!"(BNucleoF401RE$B$N(BA/D$B%3%s%P!<%?$N6qBNE*$J%W%m%0%i%_%s%0$K$D$$$F>R2p$7$^$7$g$&!#(Bmbed$B%5%$%H$N!V(BNucleo_read_analog_value$B!W$H$$$&%5%s%W%k(B
(http://developer.mbed.org/teams/ST/code/Nucleo_read_analog_value/?platform=ST-Nucleo-F401RE)
$B$r8+$F$_$k$H!"(B
==================
#include "mbed.h"
 
AnalogIn analog_value(A0);
DigitalOut myled(LED1);

#define MV(x) ((0xFFF*x)/3300)
 
int main() {
    while(1) {      
        uint16_t meas = analog_value.read_u16();
        if (meas > MV(1000)) myled = !myled;
        wait(0.2); 		// wait 200 ms
    }
}
==================
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($B%j%9%H(B2-3-4)

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