Functions:
1, support sampling rate (KHz): 8/11.025/12/16/22.05/24/32/44.1/48
2, 24 bit DAC output, dynamic range support 90dB, signal-to-noise ratio support 85dB
3. Fully support FAT16, FAT32 file system, maximum support for 32G TF card, support 32G U disk, 64M bytes of NORFASH
4, a variety of control mode, parallel port control mode, serial port mode, AD button control mode.
5, the broadcast language inserting function, can suspend the background music which is playing.
6. Audio data is sorted by folder. Up to 100 folders are supported. Each folder can assign 1000 songs.
7, 30 level volume adjustable, 10 level EQ adjustable.
8, you can plug in the SPI flash, connect to the computer, you can display the SPI flash characters to update the content.
9, can play the designated music through the serial port of MCU.
10. In the key mode, you can choose the playing mode: interruptible, non-interruptible, single cycle, big cycle;
Interruption: in the process of playing, pressing the key will interrupt the current state and execute the new one.
Uninterruptible: In the process of playing, pressing any button is invalid until the current track is played;