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Experience of using voice chip jq8400
2022-07-16 06:54:00 【Creator_ v】
Introduction to voice chip
Module features （ Brief introduction ）
1、 Support MP3 WAV Hardware decoding
2、 Support FAT file system
3、 Two wire serial port mode 、 One line serial port mode
4、 Support the functions of ordinary music players as shown in the previous song 、 Next song 、 Play 、 Pause 、 stop it 、 Music selection and other common functions
5、 Support intelligent combination playback , Song combinations in specific folders , Just send the track name
6、30 Level volume adjustment
7、 The official has a supporting upper computer , It can generate transmission instructions to realize the required functions
Update voice content description
JQ8400 The voice module is SOC programme , Integrated with a 16 Bit MCU, And an audio decoder ADSP, Hard decoding is adopted , It ensures the stability and sound quality of the system . Small size can meet the needs of embedding other products .
SPI-flash（ Change voice content ）
The biggest advantage of this chip is that it can be replaced flexibly SPI-flash Voice content in , It saves the trouble of installing the upper computer to replace the voice of the traditional voice chip ,SPI FLASH Directly simulate as U disc , Follow copy U The dish is the same , Very convenient . It makes product development and production convenient and simple . One line serial port control mode 、RX232 Serial port control optional , Provide more options for R & D .USB Data line connection module , Plug in the computer , The computer will automatically recognize , Like inserting U The dish is the same , Voice content can be changed directly , There are certain restrictions on the naming method of voice files , The program also needs to be written in this format .
Module pin description
JQ8400-FL The chip pins , And with TF And have other controllable IO The chip of the mouth 
Chip pin description
Two line serial communication （ See the attached official document for the first-line serial communication ）
Serial port transfer function
void UART1_SendCode(u8 *DATA,u8 len)
{
USART_ClearFlag(USART1,USART_FLAG_TC); // Clear the send flag before sending
while(len--)
{
USART_SendData(USART1, *DATA++);
while(USART_GetFlagStatus(USART1,USART_FLAG_TC)!=SET);// Wait for the end of sending
}
}
Two line serial port specifies the path to play The following is its driver function , Support Chinese and English numbers and other groups , It is suggested that the folder name and file name should not be too long . Create two folders , The folder name is test 1, test 1 There are folders 2, Folder 2 There are documents in the 00002 The audio of .
/************************************************************************ Function description ： Play audio files in any path Entrance parameters ：JQ8X00_Symbol: System letter ,*DATA: The path of the audio file to be played return return value ： none Other instructions ： Example of playing instructions Such as ：/ advertisement / Mi phones .mp3, It can be in the following format / advertisement * / millet *???,“ advertisement *” The first two words stand for “ Advertising folder ”,* For wildcard Attention format , The next catalog symbol should be preceded by *, Such as / test 1* / test 2* /00002*??? JQ_8x00_RandomPathPlay(JQ8X00_FLASH," advertisement * / millet ") Play FLASH The file name in the root directory is 00001.mp3 The audio of , Then pass on JQ_8x00_RandomPathPlay(JQ8X00_FLASH,"/00001"); **************************************************************************/
void JQ8x00_RandomPathPlay(JQ8X00_Symbol symbol,char *DATA)
{
uint8_t Buffer[52] ={
0xaa,0x08};
uint8_t i,j;
Buffer[2] = 1 + strlen(DATA) + 4;
Buffer[3] = symbol;
i = 4;
while(*DATA)
{
Buffer[i++] = *DATA;
DATA++;
}
Buffer[i++] = '*';
Buffer[i++] = '?';
Buffer[i++] = '?';
Buffer[i++] = '?';
for(j=0;j<i;j++)
{
Buffer[i] = Buffer[i] + Buffer[j];
}
i++;
JQ8x00_UART(Buffer,i);
}
// The following is the playback function
char Path_Buffer[] = {
"/ test 1*/ test 2*/00002"}; // Play path ： root directory -> test 1-> test 2 The next file is called 00002 The audio file for
JQ8x00_RandomPathPlay(JQ8X00_FLASH,Path_Buffer); // Play root directory -> test 1-> test 2 The next file is called 00002 The audio file for
Two line serial port combination play The following is its driver function , Combined playback is combined by file name , The file is required to be stored in “ZH” Under the folder , You can put the file name to be combined
Change the name to two bytes , It is generally recommended to use numbers to represent . Such as ： 01.mp3,02.mp3, It can also be named with two letters or one Chinese character .
/************************************************************************ Function description ： Combined broadcast function Entrance parameters ： *DAT： String pointer ,Len String length return return value ： none Other instructions ： Put the file name to be advertised into the array as a formal parameter **************************************************************************/
void JQ8x00_ZuHeBoFang(uint8_t *DATA,uint8_t Len)
{
u16 CRC_data=0,i = 3;
uint8_t Buffer[ZH_MAX] ={
0xaa,0x1b};
Buffer[2] = Len*2; // Calculate the length
CRC_data = CRC_data + 0xaa + 0x1b + Buffer[2];
while(Len--)
{
Buffer[i] = *DATA/10+0x30; // Take out ten
CRC_data = CRC_data + Buffer[i];
i++;
Buffer[i] = *DATA%10+0x30; // Take out a bit
CRC_data = CRC_data + Buffer[i];
i++;
DATA++;
}
Buffer[i] = CRC_data;
i++;
JQ8x00_UART(Buffer,i);
}
// The following is the playback function
uint8_t ZH_Buffer[3] = {
1,2,3};
JQ8x00_ZuHeBoFang(ZH_Buffer,3); // take ZH The name under the folder is 01 02 03 Of 3 Audio files are played in turn
Chip communication adopts full duplex serial port communication ;
The baud rate is 9600, Data bits ：8 , Stop bit 1 position , Inspection position N
Communication format
Start code - Instruction type - Data length （n）- data 1－ data n－ And inspection (SM)
Instruction code ： Fixed for AA
Instruction type : Used to distinguish instruction types
Data length ： The number of bytes of data in the instruction
data ： Relevant data in the instruction , When the data length is 1 when , Only CMD, No data bits
And inspection ： Is the low of the sum of all previous bytes 8 position , That is, the start code is added to the data and taken as the low 8 position Data format ： Send data or commands , high 8 Bit data comes first , low 8 In the back
Agreement
Play state definition ： The system is powered on and stopped
00( stop it ) 01( Play ) 02( Pause )
Drive letter definition : After switching the drive letter, it is in the stop state
USB:00 SD:01 FLASH:02 NO_DEVICE：FF
The volume ： The volume is... In total 31 level ,0-30 level , On the phone, Mo thought 20 level
Play mode definition ： On power, Mo thinks the single stops
/************************************************************************ Function description ： Start code - Instruction type - Data length - The checksum Entrance parameters ： MODE： Pattern return return value ： none Other instructions ： Countless data is transferred **************************************************************************/
void JQ8x00_Command(UartCommand Command)
{
uint8_t Buffer[4] ={
0xaa};
Buffer[1] = Command; // Instruction type
Buffer[2] = 0x00; // Data length
Buffer[3] = Buffer[0] + Buffer[1] + Buffer[2]; // The checksum
JQ8x00_UART(Buffer,4);
}
/************************************************************************ Function description ： Start code - Instruction type - Data length - data - The checksum Entrance parameters ： *DAT： String pointer ,Len String length return return value ： none Other instructions ： **************************************************************************/
void JQ8x00_Command_Data(UartCommandData Command,uint8_t DATA)
{
uint8_t Buffer[6] ={
0xaa};
uint8_t DataLen = 0;
Buffer[1] = Command; // Instruction type
if((Command != AppointTrack) && (Command != SetCycleCount) && (Command != SelectTrackNoPlay) && (Command != AppointTimeBack) && (Command != AppointTimeFast)) // Contains only one data instruction
{
Buffer[2] = 1; // Data length
Buffer[3] = DATA; // data
Buffer[4] = Buffer[0] + Buffer[1] + Buffer[2] + Buffer[3]; // The checksum
DataLen = 5;
}
else // Contains two data instructions
{
Buffer[2] = 2; // Data length
Buffer[3] = DATA/256; // data
Buffer[4] = DATA%256; // data
Buffer[5] = Buffer[0] + Buffer[1] + Buffer[2] + Buffer[3] + Buffer[4];
DataLen = 6;
}
The serial port transmission control instruction includes no data and multiple data
typedef enum {
CheckPlayState = 0x01, /* Query the broadcast status */
Play = 0x02, /* Play */
pause = 0x03, /* Pause */
Stop = 0x04, /* stop it */
LastSong = 0x05, /* Last song */
NextSong = 0x06, /* Next song */
CheckOnelineDisksign = 0x09, /* Query the current online drive letter */
CheckCurrentDisksign = 0X0A, /* Query the current drive letter */
CheckTotalTrack = 0x0C, /* Query the total tracks */
CurrentTrack = 0x0D, /* Current track */
LastFloder = 0x0E, /* Previous folder directory */
NextFloder = 0x0F, /* Next folder directory */
EndPlay = 0x10, /* End play */
CheckFloderFirstTrack = 0x11, /* Query file directory track */
CheckFloderAllTrack = 0x12, /* Query the total tracks of the file directory */
AddVolume = 0x14, /* Volume plus */
DecVolume = 0x15, /* Vol */
EndZHPlay = 0X1C, /* End the combined broadcast */
CheckSongShortName = 0x1E, /* Query song short file name */
EndLoop = 0x21, /* End reread */
GetTotalSongTime = 0x24, /* Get the total time of the current track */
OpenPlayTime = 0x25, /* Playback time development send */
ClosePlayTime = 0x26, /* Turn off playback time sending */
}UartCommand; // Instructions without data , Start code - Instruction type - Data length - The checksum
typedef enum {
AppointTrack = 0x07, /* Specify track playback */
SetCycleCount = 0x19, /* Set the number of cycles */
SetEQ = 0X1A, /*EQ Set up */
SelectTrackNoPlay = 0x19, /* The selected music will not be played */
GoToDisksign = 0X0B, /* Switch the specified drive letter */
SetVolume = 0x13, /* Volume settings */
SetLoopMode = 0x18, /* Set cycle mode */
SetChannel = 0x1D, /* Set up channels */
AppointTimeBack = 0x22, /* Specified time rewind */
AppointTimeFast = 0x23, /* Specified time rewind */
}UartCommandData; // Instructions containing multiple data , Start code - Instruction type - Data length - data 1-...- The checksum
Drive letter and cycle mode selection instruction
typedef enum {
JQ8X00_USB = 0X00, /*UPANND*/
JQ8X00_SD = 0x01, /*SD*/
JQ8X00_FLASH = 0x02, /*FLASH*/
}JQ8X00_Symbol; // System letter
// The cycle mode selection is contained in multiple data instructions
// SetLoopMode = 0x18, /* Set cycle mode */
typedef enum {
OverallCycle = 0X00, /* Total circulation Play the whole track in sequence , After playing, cycle */
SingleCycle = 0x01, /* Single tune circulation Keep looping the current track */
SingleStop = 0x02, /* Single stop Stop once after playing the current track */
OverallRandom = 0X03, /* Totally random Randomly play the tracks in the drive letter */
CatalogCycle = 0X04, /* Directory loop Play the tracks in the current folder in order , After playing, cycle , Directory does not contain subdirectories */
CatalogRandom = 0x05, /* Catalog random Play randomly in the current directory , Directory does not contain subdirectories */
CatalogTurnPlay = 0x06, /* Directory sequence playback Play the tracks in the current folder in order , Stop after playing , Directory does not contain subdirectories */
OverallTurnPlay = 0x07, /* Play the whole disc in sequence Play the whole track in sequence , Stop after playing */
}LoopModeSelect; // Cycle mode selection
Play different songs through key control , It uses atomic STM32ZET6 Serial port 1, See the attached document
The attachment ：JQ8400
notes ： Written with reference to official documents
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