My Muzik 1.0. MP3 Player using (VNC1L/VS1033/AVR8) User Manual (Rev 1.0) OrientNDT Co.,LTD

Transcription

1 My Muzik 1.0 MP3 Player using (VNC1L/VS1033/AVR8) User Manual (Rev 1.0) OrientNDT Co.,LTD 1

2 Category Page 1.What is My Muzik 1.0? 1.1 Introduction Function Diagram Board specification Description of function 3.1 Description Board Specfication 4.1 BOM (Bill of Meterial) Board Layout Schematic First Step 5.1 Ready to start At first,let's listen to music Customizing with my own code using AVR Reference datasheet

3 1.What is My Muzik 1.0? Thank you for purchasing Mymuzik 1.0 kit. This kit is for playing MP3/WMA files in your USB memory stick on MCU stand alone board and also for engineers who want to know basic technics about USB OTG (On The Go) and audio decode and streamming. This palm-baseable board - size 55 x 55 (mm)- is suitable to stand on your desk corner side and listen to music whenever you want. And It may be useful for who want to know below technics ; USB Host chip of VNC1L ( vinculum.,ltd) Audio codec chip of VS1033 ( VLSI ) Atmega8-8 bit MCU ( Ateml) 3

4 1.2 Function Diagram RS232c 2 AVR8 1 USB Connector VNC1L 3 SW0 SW1 4 SW2 Audio Out 5 VS1033 SW3 SW4 1 Start booting procedure from USB Memory on FAT32 Directory 2 VNC1L send information of directory and files through serial port -rs232c 3 While waiting push-button event on AVR8,when some user input is occured,it send command through serial port 4 After receiving command from AVR8,VNC1L Read MP3/WAM files and start streamming audio-data to VS While receiving streamming audio-data from VNC1l,VS1033 decode to audio-signal and output to Audio Stereo port. 4

5 2.Board specification a b c d e 5

6 3.Desciption of functions 3.1 description 1 USB connector USB A type To which USB memory stick is connected a b LM LDO From 5.0 Volts power to level shift as 3.3V Button for RESET_AVR For warm -start and run initial code of AVR8 Button for RESET_USB for Re-boot of USB memory stick. LDO2.8 From 5.0 volts power to level shift as 2.8V Button for AVR8 ( PB0 ~ PB4) User customized button Audio Jack DC Jack 1.0Pie Input of 5V ~ 10V DC Adapter VS1033 VLSI audio codec chip VNC1L Vinculum USB OTG (On The Go) chip 1. FAT32 Stack ( available 20 commands) 2. send audio- streamming data to VS1033 AVR8 8 bit MCU of Atm디 Switch for Power 8 Slide switch to

7 c AVR ISP 6pin For Firm-ware loading using * Pin map ISP (In System Program) RESET SCK MISO GND MOSI 5V d RS232C 3pin TXD RXD GND this 3pin socket is for below 2 purpose; 1. VNC1L firm-ware loading using ISP ( e refer dip switch) 2. VNC1L send command e Mode Dip connector 1) change to VNC1L ISP mode * * 2) change to general- RS232c mode * * 7

8 4-1 BOM (Bill of Meterial) Size : width(55mm) x Height (55mm) Item Q ty Reference Value 1 1 CN1 CN-USB 2 2 C2,C1 20pF 3 12 C3,C5,C7,C8,C9,C10,C11, 100nF C12,C15,C17,C24,C C4 33uF 5 1 C6 10uF 6 2 C13,C14 18pf 7 2 C16,C26 4.7uF 8 2 C18,C19 47pF 9 2 C21,C20 10pF 10 1 C22 10nF 11 1 C23 1nF 12 3 D1,D2,D3 LED 13 4 H1,H2,H3,H4 hole 14 1 IC1 ATmega J4,J1 HEADER 16 1 J2 HEADER 3X J3 AUDIO OUTPUT 18 1 J5 dc p 19 1 RG1 Regulator SW1,RST_AV1,SW2,SW3,SW4, std_sw SW R1,R2,R3,R4,R5,R6 10K R7,R8,R9,R10,R11,R12,R13, 100K R14,R15,R16,R R18 1M 24 5 R19,R20,R21,R25,R27 200R 25 7 R22,R23,R24,R26,R28,R29, 47K R SW6 SW-SMD 27 1 SW7 SW-SLIDE 28 1 U1 Regulator U2 3.3V Regulator 30 1 U3 5.0V Regulator 31 1 VS1 VS LQFP 32 1 V1 VNC1L 48LQFP 33 1 Y1 16 Mhz 34 1 Y Mhz 35 1 Y3 12Mhz 8

9 4-2. Board Layout (TOP) (Bottom) 9

10 4.3 Schematic page1 10

11 page2 11

12 5. First step 5.1 Ready to start 번호 Item count (ea) notice My Muzik DC adapter recommand: 5volts/1A availabel : 5~10 volts 2 1 1~ 2 A above 9 volts,board may be warm up Speaker or ear-phone check audio jack-dia. 2.0 mm dia. 3 1 if it is suitable to your pc,ok 4 USB memory 1 if it is appeared on W i n d o w s X P disk-explorer,it'ok. then store any Mp3 files as you want. 12

13 5.2 At first,let's listen to music First step...connect all together. (DC power) (audio jack) (USB memory) Second step...pull-up slide switch to power on Check if red-led is on Check if yellow-led is on,if yes USB memory-booting is finished. 13

14 Third Step.. Listen to Music PLAY /Stop button connected to AVR8의 PB0 port Previous(PB2) NEXT (PB1) 14

15 5.3 Customizing with my own code using AVR ready to start 번호 item 비고 1 AVR ISP Board for Upload firm-ware on AVR8 2 Codevision 3.0 AVR8 IDE (recommand) 3 AVR Studio AVR8 IDE free-ware 4 PonyProg Free-ware Uploader code example (codevision version) // Timer(s)/Counter(s) Interrupt(s) initialization TIMSK=0x00; // USART initialization // Communication Parameters: 8 Data, 1 Stop, No Parity // USART Baud rate: 9600 UCSRA=0x00; UCSRB=0xD8; UCSRC=0x86; UBRRH=0x00; UBRRL=0x67; // Global enable interrupts #asm("sei"); while (1) { if ((PINB & 0x01)==0) { PORTB=0x0; delay_ms(100); // sw0 if (sw_on==1) { sw_on=0; send2vnc("vst"); } else { sw_on=1; send2vnc("v3a"); } delay_ms(2000); } if ((PINB & 0x02)==0) { PORTB=0x0; delay_ms(100); send2vnc("vsb"); delay_ms(2000); } //sw1 } } 15

16 5.3.3 ISP screen shot under Codevision Connect ISP Board to My Muzik

17 For your help,please visit this site 17

18 6.Reference datasheet 1. VS1003 DataSheet VNC1L DataSheet AVR8 DataSheet