Recording Voice Modules

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Kristian Jenkins
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1 Recording Voice Modules WTV-SR Manual Data Sheet

2 Table of contents. Features.... Structured flowchart.... Packages diagram Parameters Environmental Absolute Max Ratings.... Control modes..... MP mode..... Key control one by one..... Serial interface control mode One line mode There line mode Application circuit MP control mode MP control mode Key mode one by one One line serial interface mode Three line serial interface... 9

3 . Features Support MIC & LINE-IN recording SPI-FLASH is up to M, recording time is up to minutes. Support USB (with programmer) Support download voice from PC and play recording voice with high quality. Support uploads recording voice to computer With power down memory to retain. Using an independent file manage system, assign SPI-FLASH more reasonable Do not come out chips scrape Control modes: MCU, key control mode 8-level adjustable volume Operating voltage: DC.V. Structured flowchart. Packages diagram P4 P P NC P7 NC AUDIO_L SP+ SP- DI DO GND 8 4 P07 P0 LIN E IN NC MIC+ NC +.V P00 P0 P0 P04 P0

4 Pins description PINS DESCRIPTIONS FUNCTIONS PINS DESCRIPTIONS FUNCTIONS P4 Key SPI-FLASH_ use fo -r downloading data P Key P0 Key P Key 7 P04 Key 4 NC Blank 8 P0 Three-line /On e-line / Key P7 Key 9 P0 Three-line / Key NC Blank 0 Three-line / Key 7 Reset pin, keep low level 0ms P00 Key 8 AUDIO-L Positive, external amplifier audio output.v Positive 9 SP- Negative, Drive speaker directly NC Blank 0 SP+ Positive, Drive Microphone record 4 MIC+ speaker directly -ing, positive port DI SPI-FLASH_DI,use for downloading data NC Blank DO SPI-FLASH_DO, use for downloading data LINE IN LINE-IN input port SPI-FLASH_, use for downloading data 7 P0 Key 4 GND GND 8 P07 Key 4. Parameters Supply voltage :DC. V, Ambient temperature: PARAMETERS REMARKS CONDITIONS MIN VALUE REPRESENTATIVR VALUE MAX VALUE UNITS SUPPLY VOLTAGE All input.. V QUIESCENT I OP RL=Ω ua CURRENT I OP RL=8Ω ua RECORDING I R RL=Ω 0 0 ma CURRENT I R RL=8Ω 0 0 ma PLAYBACK I P RL=Ω 0 0 ma CURRENT I P RL=8Ω ma

5 . Environmental Absolute Max Ratings PARAMETERS REMARKS CONDITION RATING VALUE UNITS POWER V DD V SS - -0.~+7.0 V INPUT VOLTAGE V IN All input V SS -0.~V DD +0. V STORAGE TEMPERATURE TSTG - -~+0 C USE TEMPERATURE T OPR - -40~+8 C. Control modes.. MP mode MP mode, including record, play/ pause, down, up, Volume+, Volume-, stop, delete, etc. as follows: I/O FUNCTION P00 UP DELETE P0 STOP P0 RECORDI P04 PLAY/ PAUSE P0 DOWN P0 V+ P07 V-.. Key control one by one This mode, can recording 4 section voice, and have 4 key to control play independently. Repeat use the same channel, the pre-recording voice will be recovered. VOICE RECORD I/O RECORD I/O SECTION P00 P04 SECTION P0 SECTION P0 P0 SECTION 4 P0 P07.. Serial interface control mode With one-line & three-line serial interface mode. One-line, which use MCU transferred by P0 to controls WTV-SR. Advantages: I/O is high-usage. Three-line, which use MCU to operate WTV-SR by. Advantages: the speed of communication is very fast. Functions of this mode, including recording specify file name, playback voice of a specify file name, recording / playback according to serial number, volume adjustment, delete the specified file name, delete the specify serial number, formatting, pause, continued to play from pause and so on. Control commands Description: Each control command including start code, identification codes of DL, command codes and the volume level code, all of them are hex. File name is ASCII code, should be transferred to hex code when send it. For example, a file name is A0, so you need to send the relevant ASCII code 40. The corresponding list of favorites in the WTV-SR

6 CHARAC ASCII CHARAC TER CODE TER ASCIICODE 0 8 8H H 9 9H H A 40H H B 4H 4 4H C 4H H D 4H H E 44H 7 7H F 4H Control commands of one-line and three-one are the same, just timing sequence have a little different. The commands as follows: (Recording file name is A0 as a example) ⑴ Recording specify file name 07H A0H 4H H H H ⑵ Recording according to serial number 0H AH Voice files are generated according to serial number by system, users need not specify the file name. If one of sections is deleted, the subsequent file will moving forward ⑶ Playback voice of a specify file name 07H AH 4H H H H Sending the specify file when playback voice, if the file not-existent, it will not play voice. ⑷ To play according to serial number 0H AH H The example plays the voice of serial number 00, which is the voice of paragraph. Serial number has nothing to do with file name, but relate to the order of recording into memory. ⑸ Volume adjustment 0H A4H Volume Levels 08H 9 levels volume, from 00H~08H, 00H is mute, 08H is the max volume. ⑹ Stop recording / playing 0H AH ⑺ Delete the specified file name 07H AH 4H H

7 H H ⑻ Delete the specify serial number 0H A7H H the control command has been sent, change high level to low, playing audio at the same time. pulled when voice is played completely. m s m s 7E 07 VOICE ⑼Formatting 0H A8H If format SPI-FLASH, it will delete all of voice. ⑽Pause 0H A9H ⑾Continued to play from pause 0H AAH.4. One line mode One-line mode, which is MCU send to I / O port P0, achieve the purpose of controlling WTV-SR. In one-line mode, in addition to P0 ports, the others I / O are invalid. Sending / RESET negative pulse ms, then send control commands afterms (Reference.), when The assignment functions as follows: I/O FUNCTION P P0 --- P0 P P0 --- P0 --- P P4 P --- P --- P7 --- m s D0 D D D D4 D D D7 Each data is a byte in control commands. At first, should be pulled down ms to awaken WTV-SR before sending, and then sent low, next high. A byte sent completed, need to be placed at high levelms before sending the next byte.

8 The control ports as follows: :, 0 :, One-line used data duty cycle to determine the data of sending is 0 or. If high : low = :, means the data 0, high :low = :, means the data. 0 m s For example, sending, its two binary code is 0, follow the principle of sending low first, then high, the data as shown below. After sending 7E, need to be placed at high levelms before sending the other data. I/O FUNCTION P P0 P0 P P0 --- P0 --- P P4 P --- P --- P7 --- m s D0 D D D D4 D D D7.. There line mode Three-line, which use MCU to send / / to the I / O port, P0, P0, achieve the purpose of operating WTV-SR by. Sending / RESET negative pulse ms, then send control commands after ms (see 7.), when control command has been sent, change high level to low, playing audio at the same time. pulled when voice is played completely. m s Each data is a byte in control commands. At first, should be pulled down ms to awaken WTV-SR before sending, and then sent and, clock cycle recommend use 00us. Please send low first, next high. A byte sent completed, need to be placed at high levelms before sending the next byte. 7. Application circuit //D ATA m s 7E MP control mode (PWM output, drive speakers directly) VOICE

9 R 470 复位 SPEAKER P4 P07 8 P P0 7 P LIN E IN 4 NC NC P7 MIC+ 4 NC NC 7 +.V 8 AUDIO_L P00 9 SP+ 0 0 SP- P0 9 DI P0 8 DO P04 7 P0 4 GND W TV-SR LINE IN MICROPHONE K8 K7 K K K K4 K K 音量 - 音量 + 上一曲删除停止录音播放 / 暂停下一曲 7.. Three line serial interface R 470 SPEAKER P4 P07 8 P P0 7 P LIN E IN 4 NC NC P7 MIC+ 4 NC NC 7 +.V 8 AUDIO_L P00 9 SP+ 0 0 SP- P0 9 DI P0 8 DO P04 7 P0 4 GND W TV-SR LINE IN MICROPHONE MCU VDD 7.. MP control mode (DAC output, external amplifiers) R 470 AMP 复位 P4 P07 8 P P0 7 P LIN E IN 4 NC NC P7 MIC+ 4 NC NC 7 +.V 8 AUDIO_L P00 9 SP+ 0 0 SP- P0 9 DI P0 8 DO P04 7 P0 4 GND WTV-SR LINE IN 7.. Key mode one by one R 470 复位 SPEAKER P4 P07 8 P P0 7 P LINE IN 4 NC NC P7 MIC+ 4 NC NC 7 +.V 8 AUDIO_L P00 9 SP+ 0 0 SP- P0 9 DI P0 8 DO P04 7 P0 4 GND WTV-SR LINE IN MICROPHONE K8 K7 K K K K4 K K MICROPHONE 音量 - 音量 + 上一曲删除停止录音播放 / 暂停下一曲 K8 放音 4 K7 放音 K 录音 K 录音 K 录音 K4 录音 4 K 放音 K 放音 Connect amplifier with AUDIO_L port and GND 7.4. One line serial interface mode Note: This is a connection when the voltage of = VDD. If VDD=V, =.V, need to connect a resistor 470Ω to,, line. 8. Download & upload sound file 4 USB P00 DO DI R4 00K P0 C4 0uF/0V C RESET VDD TEST GND 4 GND NC 7 04 D- R D- P04 D+ R D+ IOVDD0 P00 FLASH - VDD R.K 7 VDD IOVDD 4 FLASH-DO 8 VDDU P P0 FLASH-DI 9 VDDA P7 P7 P04 FLASH - 0 XOUT XIN P7 W TV-SR-RESET C GND GND W TU0-0SS 04 VDD WTV-SR- C C M P P WTV-SR with relevant host computer software, you can upload sound files to the PC via USB, including recorded voice. Voice file should be WAV format. Of course, you can also download WAV file to WTV-SR for playing. The downloaded sound file names should begin with F, such as F000 means download voice, that is, fixed voice D Note: This is a connection when the voltage of = VDD. If VDD=V, =.V, need to connect a resistor 470Ω to line

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