u  Sound formation：MP3/WAV

u  Support FAT file system

u  Supports sample rate (KHz):8/11.025/12/16/22.05/24/32/44.1/48

u  24-bit DAC output, internal hard-DSP decoding, non-PWM output, dynamic range support 90dB, SNR support 85dB

u  Multiple control modes, UART serial mode, one-line serial port mode, AD button control mode

u   Fully support TF card, U disk And SPIFLASH

u  Support USB sound card, card reader, HID control

u  Support SPIFLASH simulation into U disk, directly update the voice in SPIFLASH like U disk

u  Support the following function control mode ：Last song, next song, play, pause, stop, song selection .

u  It supports the following access to information, play track number, total tracks and total catalog tracks.

u  Support various information queries and easily obtain the current status of the voice chip

u  Supports the specified track insertion, that is, you can pause the currently playing music, play the inserted tracks, and return to the original track breakpoint after playing

u  Support Chinese and English path insertion, in addition to the specified track insertion, it also supports the specified path insertion, sending the inserted path can be achieved

u  Support for cross-drive character insertion, such as insert content stored in SPIFLASH

u  Supports the specified Chinese and English path playback, without knowing the serial number of the content to be played, and directly sending the path where it is located

u  Intelligent combination playback is supported, song combination in a specific folder can be combined by sending the title of the track

u  Support for 30-level volume adjustment

u  Support 5 kinds of EQ adjustment

u  Support 7 playback mode controls, can adapt to different applications

u  Support cycle times to be set, more applications, more user-friendly

u  Support system deep sleep, the current is as low as 600 microamps after sleep, can wake up by one-line string and command IO

u  Support specified time fast forward and backward

u  Support for repeating at specified time periods

u  Support for specifying playback from the specified point in time

u  Support external input audio and MP3 audio mixing, External input, MP3 output and MP3 mixing, these three output switches

u  Dedicated BUSY signal output indication.

u  Support various status change information returns, such as device insertion, etc

Mature instructions and instruction parsing to make the application more stable

Dedicated matching host computer, quick to get started, easy to debug, automatic command generation

B、Applied to the following locations

1、Car navigation voice broadcast;

2、Road transportation inspection and voice prompts of toll stations;

3、the railway station, bus station security check voice prompts;

4、Voice prompts for power, communication and financial business halls;

5、The voice prompt is verified by the vehicle entrance and exit channels;

6、Voice prompts for public security frontier inspection channels;

7、Multi-way voice alarm or device operation guidance voice;

8、electric sightseeing car safe driving voice notice;

9、Automatic alarm of mechanical and electrical equipment failure;

10、fire alarm prompts;

11、automatic broadcast equipment, scheduled broadcast;

12、treadmill voice navigation;

C、Update voice description

The JQ8900-16P selects the SOC program, integrates a 16-bit MCU, And an ADSP dedicated to audio decoding. It uses hard decoding to ensure the stability and sound quality of the system.The compact size is more suitable for embedding other products.

SPI-flash Change voice content

The advantage of this chip is the flexibility to replace the voice content in the SPI-flash,It saves the trouble of replacing the voice of the traditional voice chip in the traditional voice chip. SPI FLASH is directly simulated into a USB flash drive, which is very convenient as a copy of the USB flash drive.Make product development and production easily and simply.The one-line serial port control mode and RX232 serial port control are optional, Provides more selectivity for research and development.

Connect the USB data cable to the chip and plug it into the computer. The computer will recognize it automatically, as shown below:

And then double-click on the new disk and copy the sound you want to place.

D、Hardware parameter

 -> 문제점(버그/오류)을 등록한 뒤, 해결방안을 찾아봄.

파일분석

 -> 특정파일을 서로 분석해봄.

개발조언

 -> 프로그램 개발에 있어서 경험치를 얻어본다.

유틸자료

 -> 쓸만한 유틸

운영체제