Instruction/ maintenance manual of the product AT89C51SND1 Atmel
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MP3 Pl ayer Referen ce Des ign Based on AT 89C51S ND1 Micro controll er ........... .............. .............. .............. .............. .......
AT89C51SND1 Reference Design User Guide 1 4207B–M P3–04/07 Tab le of Con tents Section 1 Introduction.............. .............. .............. .............. .............. .............. ........... 1 1.1 Web Site d ownload... ................
AT89C51SND1 Reference Design User Guide 1-1 Rev. 4207B–M P3–04/07 Section 1 Introduc tion T he A T8 9 R FD - 0 1 i s a n M P3 re ad e r r e f er e n c e d e si g n b a s e d o n t h e A T 8 9C 5 1 S N D 1 microcontr oller.
Introduction AT89C51SND1 Reference Design User Guide 1-2 4207B–M P3–04/07 1.2 Abbreviations A T89C51SND1 : the MP3 m icrocontrolle r ISP: In-Syst em Program ming MP3: MPE G layer 3, a .
AT89C51SND1 Reference Design User Guide 2-3 Rev. 4207B–M P3–04/07 Section 2 Overv iew Figure 2- 1. Reference Design (Top view) There are two connector s: Earphone s tereo jack Mini-B US B .
Overview AT89C51SND1 Reference Design User Guide 2-4 4207B–M P3–04/07 Figure 2- 2. Reference Design (bottom view) The battery i s a standard 1 .5V-battery ty pe AAA.
Overview AT89C51SND1 Reference Design User Guide 2-5 4207B–M P3–04/07 Figure 2- 3. User Interfac e Overview Each LED ma y be: OFF Flashing (ON during les s than 1 second and only one time).
Overview AT89C51SND1 Reference Design User Guide 2-6 4207B–M P3–04/07 2.2 Quickstart This p rocedure allows y ou to quickly play an MP3 song stored in the ma ss storag e sys- tem. If the m ass sto rage is emp ty or no t form atted , see th e foll owin g secti on reg ardin g MP3 uplo ad (“USB Mode ”).
Overview AT89C51SND1 Reference Design User Guide 2-7 4207B–M P3–04/07 2.5 Alternate Functions When a mod e is validated, the correspon ding L ED bl inks slo wly (e xcept fo r USB mode, LED n° 3 bli nk quic kly wh en mod e is ac tiv at ed a nd m or e sl ow ly d uri ng t ra nsf er) .
AT89C51SND1 Reference Design User Guide 3-8 Rev. 4207B–M P3–04/07 Section 3 Overview of Mode s 3.1 Song Mode This mod e will al low users to listen to the M P3 song stored in the emb edded mass stor- age sy st em. If th e m em ory is em pty , L ED n° 1 doe s n ot bl ink and t her e i s n o m us ic.
Overview of Modes AT89C51SND1 Reference Design User Guide 3-9 4207B–M P3–04/07 In order to leave this sta te, the Play/Pau se button must be press ed.
AT89C51SND1 Reference Design User Guide 4-10 Rev. 4207B–M P3–04/07 Section 4 In-System Program ming (IS P) 4.1 Using Hardware Conditions Tw o so l de r po in t s or s ho rt - cu ts h av e to be p hy si c al ly s et u p on t h e bo ar d i n o r de r to enter this m ode.
Disclaimer: Th e i n f or m at i on in th is do cu m en t is pro v i de d i n c o n n ec t io n w i th At m el pro d uc t s. No l i ce n s e, ex pr e ss or im pl i ed , by es t op p el or o t he r w i.
An important point after buying a device Atmel AT89C51SND1 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
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If you already are a holder of Atmel AT89C51SND1, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Atmel AT89C51SND1.
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