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<DIV align=right><A href="http://analyzer.fc2.com/" target=_blank><FONT
face=System size=1>傾僋僙僗夝愅</FONT></A></DIV>
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face=System color=#ff0000 size=1>Return to home
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<P class=MsoNormal><FONT face=System><FONT size=1><B><SPAN
style="FONT-SIZE: 9pt; COLOR: lime; FONT-FAMILY: '俵俽 柧挬'; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Century; mso-hansi-font-family: Century"><FONT
face=System
color=#ff0000>
'04/02<FONT
face="俵俽 俹柧挬"> </FONT></FONT></SPAN></B></FONT></FONT></P>
<P class=MsoNormal><FONT face=System><FONT size=1><B><SPAN
style="FONT-SIZE: 9pt; COLOR: lime; FONT-FAMILY: '俵俽 柧挬'; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: Century; mso-hansi-font-family: Century"><FONT
color=#00ff40><FONT face=System>Production of
The MP3player.</FONT></FONT></SPAN></B></FONT></FONT></P>
<P class=MsoNormal><FONT face=System size=1></FONT>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: '俵俽 俹柧挬'; mso-bidi-font-size: 12.0pt"><FONT
face=System size=1></FONT></SPAN></P>
<P><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: '俵俽 俹柧挬'; mso-bidi-font-size: 12.0pt"><FONT
face=System size=1>I made The MP3player from<SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: '俵俽 俹柧挬'; mso-bidi-font-size: 12.0pt"><FONT
face=System size=1> </FONT></SPAN>Atmega8(AVR)</FONT></SPAN><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: '俵俽 俹柧挬'; mso-bidi-font-size: 12.0pt"><FONT
face=System size=1>,VS1001K,SDcard. </FONT></SPAN></P>
<P></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: '俵俽 俹柧挬'; mso-bidi-font-size: 12.0pt"><FONT
face=System color=#ff0000 size=1><STRONG>Prototype</STRONG></FONT></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: '俵俽 俹柧挬'; mso-bidi-font-size: 12.0pt"><FONT
face=System color=#ff0000 size=1><STRONG></STRONG></FONT></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: '俵俽 俹柧挬'; mso-bidi-font-size: 12.0pt"><FONT
face=System size=1></FONT></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: '俵俽 俹柧挬'; mso-bidi-font-size: 12.0pt"><FONT
face=System size=1><IMG style="WIDTH: 444px; HEIGHT: 346px" height=407
alt=MP3_NEW.JPG src="home_page.files/mp3_new.jpg" width=522></FONT></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: '俵俽 俹柧挬'; mso-bidi-font-size: 12.0pt"><FONT
face=System
size=1>
Song: 'Hitomitojite' by ZARD</FONT></SPAN></P>
<P class=MsoNormal><SPAN><FONT color=#ff0000><STRONG><FONT face=System><FONT
size=1><FONT color=#000000><FONT
color=#ff0000> </FONT>Specifications</FONT></FONT></FONT></STRONG></FONT></SPAN></P>
<P class=MsoNormal><SPAN><FONT face=System size=1> CPU: ATMEL
ATmega8 8MHz (the internal organs OSC)</FONT></SPAN></P>
<P class=MsoNormal><SPAN><FONT face=System size=1> Decoder:</FONT><A
href="http://www.vlsi.fi/vs1001/vs1001.htm"><FONT face=System
size=1>VS1001K</FONT></A><FONT face=System size=1>(DAC/DSP)</FONT></SPAN></P>
<P class=MsoNormal><SPAN><FONT face=System size=1> Supports
format:MPEG 1&2 for layer 3 and layer 3'<SUP><SUB>s </SUB></SUP>2.5
extensions</FONT></SPAN></P>
<P class=MsoNormal><FONT face=System><FONT
size=1><SPAN>
</SPAN><SPAN>all sample rates and bit rates(at most 256kbps
verification)</SPAN></FONT></FONT></P>
<P class=MsoNormal><FONT face=System
size=1> Supports
VBR(variable bit-rate)</FONT></P>
<P class=MsoNormal><FONT face=System><FONT size=1> <SPAN>Memory medium: SD
(MMC) Card (checked 64MB and 128MB), SPI MODE , FAT16 Onry (Supports VFAT)
</SPAN></FONT></FONT></P>
<P class=MsoNormal><FONT face=System><FONT size=1><SPAN>
</SPAN></FONT></FONT><FONT face=System><FONT size=1><SPAN>LCD: SC1602BC (16x2)
,</SPAN><SPAN>Title & artist (ID3TagV1 indicating), play time, volume ,power
supply voltage.</SPAN></FONT></FONT></P>
<P class=MsoNormal><FONT face=System><FONT
size=1><SPAN></SPAN></FONT></FONT><SPAN><FONT face=System size=1>
Operation button: Power on& playback,stop & power off,fast
forward,review,volume up&down </FONT></SPAN></P>
<P class=MsoNormal><SPAN><FONT face=System size=1> Electric power
consumption: Approximately 45mA at 3.3V </FONT></SPAN></P>
<P class=MsoNormal><SPAN><FONT face=System size=1> </FONT><A
href="http://www.cek.ne.jp/~kunio.h/sd.asm"><FONT face=System size=1>Program
source</FONT></A></SPAN><FONT face=System><FONT size=1><SPAN><SPAN> <A
href="http://www.cek.ne.jp/~kunio.h/MP3_0.gif">schematic</A></SPAN></SPAN></FONT></FONT></P>
<P class=MsoNormal><SPAN><SPAN><STRONG><FONT face=System color=#ff0000
size=1>Practical machine 1</FONT></STRONG></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><STRONG><FONT face=System color=#ff0000
size=1>丂<IMG style="WIDTH: 346px; HEIGHT: 253px" height=298 alt=MP3_NEW2MAE.JPG
src="home_page.files/mp3_new2mae.jpg"
width=407></FONT></STRONG></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><FONT face=System size=1>丂<IMG
style="WIDTH: 338px; HEIGHT: 212px" height=298 alt=MP3_NEW2URA.JPG
src="home_page.files/mp3_new2ura.jpg" width=474></FONT></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><FONT face=System><FONT size=1>
<STRONG>From prototype modification
point</STRONG></FONT></FONT></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><FONT face=System><FONT
size=1><STRONG> </STRONG>Power source
AA dry cell ,DC-DC converter (Texas:TPS60200)
</FONT></FONT></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><FONT face=System
size=1> When performing adding the
pause</FONT></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><FONT face=System><FONT
size=1><STRONG> </STRONG>supplied the case
(110x70x32mm) </FONT></FONT></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><FONT face=System size=1>丂丂Electric power
consumption approximately 180mW (with alkaline electric battery approximately 15
hour continuous duty yeses) </FONT></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><FONT face=System size=1>丂丂</FONT><A
href="http://www.cek.ne.jp/~kunio.h/sd_2.asm"><FONT face=System size=1>Program
source</FONT></A> <A
href="http://www.cek.ne.jp/~kunio.h/MP3_2.gif"><FONT face=System
size=1>schematic</FONT></A></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><FONT face=System color=#ff0000
size=1><STRONG>Practical machine 2</STRONG></FONT></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><STRONG><FONT face=System color=#ff0000
size=1>丂<IMG style="WIDTH: 401px; HEIGHT: 289px" height=482 alt=MP3_00.JPG
src="home_page.files/mp3_00.jpg" width=668></FONT></STRONG></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><STRONG><FONT face=System color=#ff0000
size=1>丂<IMG style="WIDTH: 376px; HEIGHT: 195px" height=247 alt=MP3_NEW3URA.JPG
src="home_page.files/mp3_new3ura.jpg"
width=476>丂</FONT></STRONG></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><STRONG><FONT face=System color=#ff0000
size=1>丂<IMG style="WIDTH: 293px; HEIGHT: 200px" height=236 alt=MP3_NEW3MAE.JPG
src="home_page.files/mp3_new3mae.jpg"
width=345></FONT></STRONG></SPAN></SPAN></P>
<P class=MsoNormal><STRONG><FONT face=System><FONT size=1><SPAN><SPAN><FONT
color=#ff0000> </FONT></SPAN></SPAN><SPAN><SPAN><FONT
color=#000000>Modification point from of practical machine 1
</FONT></SPAN></SPAN></FONT></FONT></STRONG></P>
<P class=MsoNormal><STRONG><FONT face=System><FONT
size=1><SPAN><SPAN>
</SPAN></SPAN></FONT></FONT></STRONG><SPAN><SPAN><FONT face=System size=1>DC-DC
converter modification to MAX778L</FONT></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><FONT face=System size=1>
Performance mode one time, all song repeat,one song repeat.
</FONT></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><FONT face=System size=1>
Noise decrease measure</FONT></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><FONT face=System size=1>
Case:Takachi SW-120B(60x120x24 mm)</FONT></SPAN></SPAN></P>
<P class=MsoNormal><FONT face=System><FONT
size=1><SPAN><SPAN> </SPAN></SPAN><SPAN><SPAN>Electric
power consumption approximately 170mW</SPAN></SPAN></FONT></FONT></P>
<P class=MsoNormal><SPAN><SPAN><FONT face=System
size=1> </FONT><A
href="http://www.cek.ne.jp/~kunio.h/sd_4.asm"><FONT face=System
size=1>Source</FONT></A> <A
href="http://www.cek.ne.jp/~kunio.h/MP3_3.gif"><FONT face=System
size=1>schematic 1</FONT></A>, <A
href="http://www.cek.ne.jp/~kunio.h/mp30.gif"><FONT face=System
size=1>2</FONT></A> <FONT face=System><A
href="http://www.cek.ne.jp/~kunio.h/sd_4.hex">Hex
file</A></FONT></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><FONT face=System><FONT size=1><STRONG><FONT
color=#ff0000> Practical machine
3</FONT></STRONG></FONT></FONT></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><STRONG><FONT face=System color=#ff0000
size=1>丂<IMG style="WIDTH: 387px; HEIGHT: 231px" height=346 alt=MP3_51.JPG
src="home_page.files/mp3_51.jpg" width=579></FONT></STRONG></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><STRONG><FONT face=System color=#ff0000
size=1>丂丂<IMG style="WIDTH: 388px; HEIGHT: 288px" height=312 alt=MP3_52.JPG
src="home_page.files/mp3_52.jpg" width=421></FONT></STRONG></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><STRONG><FONT face=System><FONT size=1><FONT
color=#000000><FONT color=#ff0000> </FONT>From practical machine 2
modification point</FONT></FONT></FONT></STRONG></SPAN></SPAN></P>
<P class=MsoNormal><FONT face=System><FONT
size=1><SPAN><SPAN><STRONG>
</STRONG></SPAN></SPAN><SPAN><SPAN>To abbreviate LCD, furthermore the operation
indication with compact conversion and LED. </SPAN></SPAN></FONT></FONT></P>
<P class=MsoNormal><SPAN><FONT face=System><FONT
size=1><SPAN> C</SPAN><SPAN><SPAN>ase:Takachi
SW-95B(95x58x18 mm),Weight:about 90g<BR></SPAN></SPAN></FONT></FONT></P>
<P class=MsoNormal><SPAN><SPAN><FONT face=System size=1>
CPU operating speed 4MHz (MAX bit rates 160kbps)</FONT></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><FONT face=System size=1>
VS1001k operating speed 12.288MHz (Decoder manufacturer
recommendation)</FONT></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><FONT face=System size=1>
AAA Dry cell </FONT></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><FONT face=System size=1>丂 Electric power
consumption approximately 160mW</FONT></SPAN></SPAN></P>
<P class=MsoNormal><SPAN><SPAN><FONT face=System size=1>丂</FONT><A
href="http://www.cek.ne.jp/~kunio.h/sd_5_4m_1.asm"><FONT face=System
size=1>Source</FONT></A> <A
href="http://www.cek.ne.jp/~kunio.h/MP3_51.gif"><FONT face=System
size=1>schematic</FONT></A> <A
href="http://www.cek.ne.jp/~kunio.h/sd5_4m_1.hex">Hex
file</A></SPAN></SPAN></P></SPAN></BODY></HTML>
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