TAS5782MEVM: No acknowledgement from TAS5782EVM.

user5811415

Part Number: TAS5782MEVM
Other Parts Discussed in Thread: TAS5782M

Hi Expert,

I'm facing an I2C communication problem.

The MCU is transmitting registers directly to TAS5782MEVM's test-points(SCL,SDA) without PPCMB and PPC3.
Registers were dumped by PPC3(Speaker configuration is "Stereo 2.2 L/R").

There is no delay between the registers, and it transmits continuous.
Either of device does not return acknowledgement at one resister on the sequence.
But when I transmit only problem resister to device, it return acknowledgement normally.

1. What is the probable cause?

2. My program is the MCU transmits same register values alternately to each device.
Is this sequence right?
Ex.
:
0x90, 0x1A, 0x00
0x92, 0x1A, 0x00
0x90, 0x1B, 0x00
0x92, 0x1B, 0x00
0x90, 0x1C, 0x7f
　　　 :

3. This is another question.
Now I'm connecting I2S data line to only SDIN1.
Is this connection right? Or I should connect I2S data line to SDIN1 and SDIN2 in parallel?

Regards,
Keigo Iwahori.

Fullscreen Dumped registers.txt Download

const unsigned char registers[][2] = {
    
//program memory
    { 0x00, 0x00 },
    { 0x7f, 0x00 },
    { 0x02, 0x11 },
    { 0x01, 0x11 },
    { 0x00, 0x00 },
    { 0x00, 0x00 },
    { 0x00, 0x00 },
    { 0x00, 0x00 },
    { 0x03, 0x11 },
    { 0x2a, 0x00 },
    { 0x25, 0x18 },
    { 0x0d, 0x10 },
    { 0x02, 0x00 },

//Enable sub channel
// YM host buffer
    { 0x00, 0x00 },
    { 0x7f, 0x8c },

//prm_nosub
    { 0x00, 0x1d },
    { 0x28, 0x00 },
    { 0x29, 0x00 },
    { 0x2a, 0x00 },
    { 0x2b, 0x00 },

//Sample rate update

    { 0x00, 0x00 },
    { 0x7f, 0x00 },
    { 0x02, 0x80 },

    { 0x00, 0x00 },
    { 0x7f, 0x00 },

// speed 03-48k 04-96k
//dynamically reading speed
    { 0x22, 0x03 },

    { 0x00, 0x00 },
    { 0x7f, 0x00 },
    { 0x02, 0x00 },

//Coefficients
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x1a },
    { 0x08, 0x7f },
    { 0x09, 0xff },
    { 0x0a, 0xff },
    { 0x0b, 0xff },
    { 0x0c, 0x00 },
    { 0x0d, 0x00 },
    { 0x0e, 0x00 },
    { 0x0f, 0x00 },
    { 0x10, 0x00 },
    { 0x11, 0x00 },
    { 0x12, 0x00 },
    { 0x13, 0x00 },
    { 0x14, 0x00 },
    { 0x15, 0x00 },
    { 0x16, 0x00 },
    { 0x17, 0x00 },
    { 0x18, 0x00 },
    { 0x19, 0x00 },
    { 0x1a, 0x00 },
    { 0x1b, 0x00 },
    { 0x1c, 0x7f },
    { 0x1d, 0xff },
    { 0x1e, 0xff },
    { 0x1f, 0xff },
    { 0x20, 0x00 },
    { 0x21, 0x00 },
    { 0x22, 0x00 },
    { 0x23, 0x00 },
    { 0x24, 0x00 },
    { 0x25, 0x00 },
    { 0x26, 0x00 },
    { 0x27, 0x00 },
    { 0x28, 0x00 },
    { 0x29, 0x00 },
    { 0x2a, 0x00 },
    { 0x2b, 0x00 },
    { 0x2c, 0x00 },
    { 0x2d, 0x00 },
    { 0x2e, 0x00 },
    { 0x2f, 0x00 },
    { 0x00, 0x1c },
    { 0x6c, 0x7f },
    { 0x6d, 0xff },
    { 0x6e, 0xff },
    { 0x6f, 0xff },
    { 0x70, 0x00 },
    { 0x71, 0x00 },
    { 0x72, 0x00 },
    { 0x73, 0x00 },
    { 0x74, 0x00 },
    { 0x75, 0x00 },
    { 0x76, 0x00 },
    { 0x77, 0x00 },
    { 0x78, 0x00 },
    { 0x79, 0x00 },
    { 0x7a, 0x00 },
    { 0x7b, 0x00 },
    { 0x7c, 0x00 },
    { 0x7d, 0x00 },
    { 0x7e, 0x00 },
    { 0x7f, 0x00 },
    { 0x00, 0x1d },
    { 0x08, 0x7f },
    { 0x09, 0xff },
    { 0x0a, 0xff },
    { 0x0b, 0xff },
    { 0x0c, 0x00 },
    { 0x0d, 0x00 },
    { 0x0e, 0x00 },
    { 0x0f, 0x00 },
    { 0x10, 0x00 },
    { 0x11, 0x00 },
    { 0x12, 0x00 },
    { 0x13, 0x00 },
    { 0x14, 0x00 },
    { 0x15, 0x00 },
    { 0x16, 0x00 },
    { 0x17, 0x00 },
    { 0x18, 0x00 },
    { 0x19, 0x00 },
    { 0x1a, 0x00 },
    { 0x1b, 0x00 },
    { 0x58, 0x00 },
    { 0x59, 0x00 },
    { 0x5a, 0x00 },
    { 0x5b, 0x01 },
    { 0x6c, 0x00 },
    { 0x6d, 0x00 },
    { 0x6e, 0x00 },
    { 0x6f, 0x00 },
    { 0x70, 0x00 },
    { 0x71, 0x00 },
    { 0x72, 0x00 },
    
    /*
    { 0x73, 0x00 },
    { 0x74, 0x00 },
    { 0x75, 0x80 },
    { 0x76, 0x00 },
    { 0x77, 0x00 },
    { 0x78, 0x00 },
    { 0x79, 0x00 },
    { 0x7a, 0x00 },
    { 0x7b, 0x00 },
    */
    { 0x7c, 0x00 },
    /*
    { 0x7d, 0x80 },
    { 0x7e, 0x00 },
    { 0x7f, 0x00 },    
    { 0x00, 0x1e },
    { 0x08, 0x00 },
    { 0x09, 0x00 },
    { 0x0a, 0x00 },
    { 0x0b, 0x00 },
    { 0x0c, 0x00 },
    { 0x0d, 0x00 },
    { 0x0e, 0x00 },
    { 0x0f, 0x00 },
    { 0x10, 0x00 },
    { 0x11, 0x00 },
    { 0x12, 0x00 },
    { 0x13, 0x00 },
    { 0x4c, 0x00 },
    { 0x4d, 0x80 },
    { 0x4e, 0x00 },
    { 0x4f, 0x00 },
    { 0x7c, 0x00 },
    { 0x7d, 0x20 },
    { 0x7e, 0xc4 },
    { 0x7f, 0x9c },
    { 0x00, 0x1f },
    { 0x10, 0x7f },
    { 0x11, 0xff },
    { 0x12, 0xff },
    { 0x13, 0xff },
    { 0x24, 0x00 },
    { 0x25, 0x20 },
    { 0x26, 0xc4 },
    { 0x27, 0x9c },
    { 0x30, 0x7f },
    { 0x31, 0xff },
    { 0x32, 0xff },
    { 0x33, 0xff },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x23 },
    { 0x14, 0x00 },
    { 0x15, 0x00 },
    { 0x16, 0x00 },
    { 0x17, 0x01 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x11 },
    { 0x58, 0x3a },
    { 0x59, 0x2a },
    { 0x5a, 0x1f },
    { 0x5b, 0x69 },
    { 0x5c, 0xc5 },
    { 0x5d, 0xd5 },
    { 0x5e, 0xe0 },
    { 0x5f, 0x97 },
    { 0x60, 0x3a },
    { 0x61, 0x2a },
    { 0x62, 0x1f },
    { 0x63, 0x69 },
    { 0x64, 0x65 },
    { 0x65, 0x0d },
    { 0x66, 0x96 },
    { 0x67, 0xaa },
    { 0x68, 0xac },
    { 0x69, 0x5f },
    { 0x6a, 0xfb },
    { 0x6b, 0x8f },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x11 },
    { 0x6c, 0x65 },
    { 0x6d, 0x86 },
    { 0x6e, 0xf6 },
    { 0x6f, 0xdc },
    { 0x70, 0x9a },
    { 0x71, 0x79 },
    { 0x72, 0x09 },
    { 0x73, 0x24 },
    { 0x74, 0x65 },
    { 0x75, 0x86 },
    { 0x76, 0xf6 },
    { 0x77, 0xdc },
    { 0x78, 0x62 },
    { 0x79, 0xc2 },
    { 0x7a, 0x7f },
    { 0x7b, 0x21 },
    { 0x7c, 0xaf },
    { 0x7d, 0x69 },
    { 0x7e, 0x22 },
    { 0x7f, 0xd0 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x12 },
    { 0x08, 0x7f },
    { 0x09, 0xff },
    { 0x0a, 0xff },
    { 0x0b, 0xff },
    { 0x0c, 0x00 },
    { 0x0d, 0x00 },
    { 0x0e, 0x00 },
    { 0x0f, 0x00 },
    { 0x10, 0x00 },
    { 0x11, 0x00 },
    { 0x12, 0x00 },
    { 0x13, 0x00 },
    { 0x14, 0x00 },
    { 0x15, 0x00 },
    { 0x16, 0x00 },
    { 0x17, 0x00 },
    { 0x18, 0x00 },
    { 0x19, 0x00 },
    { 0x1a, 0x00 },
    { 0x1b, 0x00 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x12 },
    { 0x1c, 0x7f },
    { 0x1d, 0xff },
    { 0x1e, 0xff },
    { 0x1f, 0xff },
    { 0x20, 0x00 },
    { 0x21, 0x00 },
    { 0x22, 0x00 },
    { 0x23, 0x00 },
    { 0x24, 0x00 },
    { 0x25, 0x00 },
    { 0x26, 0x00 },
    { 0x27, 0x00 },
    { 0x28, 0x00 },
    { 0x29, 0x00 },
    { 0x2a, 0x00 },
    { 0x2b, 0x00 },
    { 0x2c, 0x00 },
    { 0x2d, 0x00 },
    { 0x2e, 0x00 },
    { 0x2f, 0x00 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x12 },
    { 0x30, 0x7f },
    { 0x31, 0xff },
    { 0x32, 0xff },
    { 0x33, 0xff },
    { 0x34, 0x00 },
    { 0x35, 0x00 },
    { 0x36, 0x00 },
    { 0x37, 0x00 },
    { 0x38, 0x00 },
    { 0x39, 0x00 },
    { 0x3a, 0x00 },
    { 0x3b, 0x00 },
    { 0x3c, 0x00 },
    { 0x3d, 0x00 },
    { 0x3e, 0x00 },
    { 0x3f, 0x00 },
    { 0x40, 0x00 },
    { 0x41, 0x00 },
    { 0x42, 0x00 },
    { 0x43, 0x00 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x12 },
    { 0x44, 0x01 },
    { 0x45, 0xad },
    { 0x46, 0x62 },
    { 0x47, 0x39 },
    { 0x48, 0x01 },
    { 0x49, 0xad },
    { 0x4a, 0x62 },
    { 0x4b, 0x39 },
    { 0x4c, 0x01 },
    { 0x4d, 0xad },
    { 0x4e, 0x62 },
    { 0x4f, 0x39 },
    { 0x50, 0x69 },
    { 0x51, 0xab },
    { 0x52, 0x4c },
    { 0x53, 0xad },
    { 0x54, 0xa5 },
    { 0x55, 0xf3 },
    { 0x56, 0xdd },
    { 0x57, 0xc0 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x12 },
    { 0x58, 0x02 },
    { 0x59, 0x04 },
    { 0x5a, 0x14 },
    { 0x5b, 0x21 },
    { 0x5c, 0x02 },
    { 0x5d, 0x04 },
    { 0x5e, 0x14 },
    { 0x5f, 0x21 },
    { 0x60, 0x02 },
    { 0x61, 0x04 },
    { 0x62, 0x14 },
    { 0x63, 0x21 },
    { 0x64, 0x67 },
    { 0x65, 0x5b },
    { 0x66, 0x38 },
    { 0x67, 0x43 },
    { 0x68, 0xa9 },
    { 0x69, 0x39 },
    { 0x6a, 0x3e },
    { 0x6b, 0xf5 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x12 },
    { 0x6c, 0x7f },
    { 0x6d, 0xff },
    { 0x6e, 0xff },
    { 0x6f, 0xff },
    { 0x70, 0x00 },
    { 0x71, 0x00 },
    { 0x72, 0x00 },
    { 0x73, 0x00 },
    { 0x74, 0x00 },
    { 0x75, 0x00 },
    { 0x76, 0x00 },
    { 0x77, 0x00 },
    { 0x78, 0x00 },
    { 0x79, 0x00 },
    { 0x7a, 0x00 },
    { 0x7b, 0x00 },
    { 0x7c, 0x00 },
    { 0x7d, 0x00 },
    { 0x7e, 0x00 },
    { 0x7f, 0x00 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x13 },
    { 0x08, 0x7f },
    { 0x09, 0xff },
    { 0x0a, 0xff },
    { 0x0b, 0xff },
    { 0x0c, 0x00 },
    { 0x0d, 0x00 },
    { 0x0e, 0x00 },
    { 0x0f, 0x00 },
    { 0x10, 0x00 },
    { 0x11, 0x00 },
    { 0x12, 0x00 },
    { 0x13, 0x00 },
    { 0x14, 0x00 },
    { 0x15, 0x00 },
    { 0x16, 0x00 },
    { 0x17, 0x00 },
    { 0x18, 0x00 },
    { 0x19, 0x00 },
    { 0x1a, 0x00 },
    { 0x1b, 0x00 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x13 },
    { 0x1c, 0x7f },
    { 0x1d, 0xff },
    { 0x1e, 0xff },
    { 0x1f, 0xff },
    { 0x20, 0x00 },
    { 0x21, 0x00 },
    { 0x22, 0x00 },
    { 0x23, 0x00 },
    { 0x24, 0x00 },
    { 0x25, 0x00 },
    { 0x26, 0x00 },
    { 0x27, 0x00 },
    { 0x28, 0x00 },
    { 0x29, 0x00 },
    { 0x2a, 0x00 },
    { 0x2b, 0x00 },
    { 0x2c, 0x00 },
    { 0x2d, 0x00 },
    { 0x2e, 0x00 },
    { 0x2f, 0x00 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x13 },
    { 0x30, 0x7f },
    { 0x31, 0xff },
    { 0x32, 0xff },
    { 0x33, 0xff },
    { 0x34, 0x00 },
    { 0x35, 0x00 },
    { 0x36, 0x00 },
    { 0x37, 0x00 },
    { 0x38, 0x00 },
    { 0x39, 0x00 },
    { 0x3a, 0x00 },
    { 0x3b, 0x00 },
    { 0x3c, 0x00 },
    { 0x3d, 0x00 },
    { 0x3e, 0x00 },
    { 0x3f, 0x00 },
    { 0x40, 0x00 },
    { 0x41, 0x00 },
    { 0x42, 0x00 },
    { 0x43, 0x00 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x13 },
    { 0x44, 0x7f },
    { 0x45, 0xff },
    { 0x46, 0xff },
    { 0x47, 0xff },
    { 0x48, 0x00 },
    { 0x49, 0x00 },
    { 0x4a, 0x00 },
    { 0x4b, 0x00 },
    { 0x4c, 0x00 },
    { 0x4d, 0x00 },
    { 0x4e, 0x00 },
    { 0x4f, 0x00 },
    { 0x50, 0x00 },
    { 0x51, 0x00 },
    { 0x52, 0x00 },
    { 0x53, 0x00 },
    { 0x54, 0x00 },
    { 0x55, 0x00 },
    { 0x56, 0x00 },
    { 0x57, 0x00 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x13 },
    { 0x58, 0x4f },
    { 0x59, 0x9d },
    { 0x5a, 0xf9 },
    { 0x5b, 0x35 },
    { 0x5c, 0xb0 },
    { 0x5d, 0x62 },
    { 0x5e, 0x06 },
    { 0x5f, 0xcb },
    { 0x60, 0x4f },
    { 0x61, 0x9d },
    { 0x62, 0xf9 },
    { 0x63, 0x35 },
    { 0x64, 0x49 },
    { 0x65, 0xe6 },
    { 0x66, 0x9d },
    { 0x67, 0x16 },
    { 0x68, 0xd5 },
    { 0x69, 0x55 },
    { 0x6a, 0x55 },
    { 0x6b, 0x56 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x13 },
    { 0x6c, 0x4f },
    { 0x6d, 0x9d },
    { 0x6e, 0xf9 },
    { 0x6f, 0x35 },
    { 0x70, 0xb0 },
    { 0x71, 0x62 },
    { 0x72, 0x06 },
    { 0x73, 0xcb },
    { 0x74, 0x4f },
    { 0x75, 0x9d },
    { 0x76, 0xf9 },
    { 0x77, 0x35 },
    { 0x78, 0x49 },
    { 0x79, 0xe6 },
    { 0x7a, 0x9d },
    { 0x7b, 0x16 },
    { 0x7c, 0xd5 },
    { 0x7d, 0x55 },
    { 0x7e, 0x55 },
    { 0x7f, 0x56 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x14 },
    { 0x08, 0x7c },
    { 0x09, 0xb6 },
    { 0x0a, 0xa4 },
    { 0x0b, 0xbc },
    { 0x0c, 0x83 },
    { 0x0d, 0x49 },
    { 0x0e, 0x5b },
    { 0x0f, 0x44 },
    { 0x10, 0x7c },
    { 0x11, 0xb6 },
    { 0x12, 0xa4 },
    { 0x13, 0xbc },
    { 0x14, 0x7c },
    { 0x15, 0xb1 },
    { 0x16, 0x2c },
    { 0x17, 0x1e },
    { 0x18, 0x86 },
    { 0x19, 0x87 },
    { 0x1a, 0xc5 },
    { 0x1b, 0x49 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x14 },
    { 0x1c, 0x05 },
    { 0x1d, 0xb7 },
    { 0x1e, 0x5c },
    { 0x1f, 0x1f },
    { 0x20, 0x05 },
    { 0x21, 0xb7 },
    { 0x22, 0x5c },
    { 0x23, 0x1f },
    { 0x24, 0x05 },
    { 0x25, 0xb7 },
    { 0x26, 0x5c },
    { 0x27, 0x1f },
    { 0x28, 0x49 },
    { 0x29, 0xe6 },
    { 0x2a, 0x9d },
    { 0x2b, 0x16 },
    { 0x2c, 0xd5 },
    { 0x2d, 0x55 },
    { 0x2e, 0x55 },
    { 0x2f, 0x56 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x14 },
    { 0x30, 0x7c },
    { 0x31, 0xb6 },
    { 0x32, 0xa4 },
    { 0x33, 0xbc },
    { 0x34, 0x83 },
    { 0x35, 0x49 },
    { 0x36, 0x5b },
    { 0x37, 0x44 },
    { 0x38, 0x7c },
    { 0x39, 0xb6 },
    { 0x3a, 0xa4 },
    { 0x3b, 0xbc },
    { 0x3c, 0x7c },
    { 0x3d, 0xb1 },
    { 0x3e, 0x2c },
    { 0x3f, 0x1e },
    { 0x40, 0x86 },
    { 0x41, 0x87 },
    { 0x42, 0xc5 },
    { 0x43, 0x49 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x14 },
    { 0x44, 0x05 },
    { 0x45, 0xb7 },
    { 0x46, 0x5c },
    { 0x47, 0x1f },
    { 0x48, 0x05 },
    { 0x49, 0xb7 },
    { 0x4a, 0x5c },
    { 0x4b, 0x1f },
    { 0x4c, 0x05 },
    { 0x4d, 0xb7 },
    { 0x4e, 0x5c },
    { 0x4f, 0x1f },
    { 0x50, 0x49 },
    { 0x51, 0xe6 },
    { 0x52, 0x9d },
    { 0x53, 0x16 },
    { 0x54, 0xd5 },
    { 0x55, 0x55 },
    { 0x56, 0x55 },
    { 0x57, 0x56 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x14 },
    { 0x58, 0x7f },
    { 0x59, 0xff },
    { 0x5a, 0xff },
    { 0x5b, 0xff },
    { 0x5c, 0x00 },
    { 0x5d, 0x00 },
    { 0x5e, 0x00 },
    { 0x5f, 0x00 },
    { 0x60, 0x00 },
    { 0x61, 0x00 },
    { 0x62, 0x00 },
    { 0x63, 0x00 },
    { 0x64, 0x00 },
    { 0x65, 0x00 },
    { 0x66, 0x00 },
    { 0x67, 0x00 },
    { 0x68, 0x00 },
    { 0x69, 0x00 },
    { 0x6a, 0x00 },
    { 0x6b, 0x00 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x14 },
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    { 0x42, 0x00 },
    { 0x43, 0x00 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x1e },
    { 0x44, 0x00 },
    { 0x45, 0x80 },
    { 0x46, 0x00 },
    { 0x47, 0x00 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x1e },
    { 0x48, 0x00 },
    { 0x49, 0x80 },
    { 0x4a, 0x00 },
    { 0x4b, 0x00 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x1e },
    { 0x50, 0x40 },
    { 0x51, 0x00 },
    { 0x52, 0x00 },
    { 0x53, 0x00 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x1e },
    { 0x54, 0x04 },
    { 0x55, 0x00 },
    { 0x56, 0x00 },
    { 0x57, 0x00 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x1e },
    { 0x58, 0x04 },
    { 0x59, 0x00 },
    { 0x5a, 0x00 },
    { 0x5b, 0x00 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x1e },
    { 0x6c, 0x00 },
    { 0x6d, 0xce },
    { 0x6e, 0xc0 },
    { 0x6f, 0x8a },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x1e },
    { 0x70, 0x0a },
    { 0x71, 0x0a },
    { 0x72, 0xae },
    { 0x73, 0xd2 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x1e },
    { 0x74, 0x00 },
    { 0x75, 0x03 },
    { 0x76, 0x69 },
    { 0x77, 0xd0 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x1e },
    { 0x78, 0x40 },
    { 0x79, 0x00 },
    { 0x7a, 0x00 },
    { 0x7b, 0x00 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x1f },
    { 0x08, 0x75 },
    { 0x09, 0xf5 },
    { 0x0a, 0x51 },
    { 0x0b, 0x2e },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x1f },
    { 0x0c, 0x00 },
    { 0x0d, 0x00 },
    { 0x0e, 0x57 },
    { 0x0f, 0x62 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x1f },
    { 0x14, 0x00 },
    { 0x15, 0xce },
    { 0x16, 0xc0 },
    { 0x17, 0x8a },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x1f },
    { 0x18, 0x0a },
    { 0x19, 0x0a },
    { 0x1a, 0xae },
    { 0x1b, 0xd2 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x1f },
    { 0x1c, 0x00 },
    { 0x1d, 0x03 },
    { 0x1e, 0x69 },
    { 0x1f, 0xd0 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x1f },
    { 0x20, 0x40 },
    { 0x21, 0x00 },
    { 0x22, 0x00 },
    { 0x23, 0x00 },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x1f },
    { 0x28, 0x75 },
    { 0x29, 0xf5 },
    { 0x2a, 0x51 },
    { 0x2b, 0x2e },
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x1f },
    { 0x2c, 0x00 },
    { 0x2d, 0x00 },
    { 0x2e, 0x57 },
    { 0x2f, 0x62 },

//swap command
    { 0x00, 0x00 },
    { 0x7f, 0x8c },
    { 0x00, 0x23 },
    { 0x14, 0x00 },
    { 0x15, 0x00 },
    { 0x16, 0x00 },
    { 0x17, 0x01 },

//register tuning
    { 0x00, 0x00 },
    { 0x7f, 0x00 },
    { 0x00, 0x00 },
    { 0x07, 0x00 },
    { 0x08, 0x20 },
    { 0x55, 0x07 },
    { 0x00, 0x00 },
    { 0x7f, 0x00 },
    { 0x00, 0x00 },
    { 0x3d, 0x30 },
    { 0x3e, 0x30 },
    { 0x00, 0x00 },
    { 0x7f, 0x00 },
    { 0x00, 0x01 },
    { 0x02, 0x00 },
*/
//Unmute the device
    { 0x00, 0x00 },
    { 0x7f, 0x00 },
    { 0x03, 0x00 },
    { 0x2a, 0x11 },


};

No acknowledgement from TAS5782EVM.xlsx

over 6 years ago

0 Dylan Yao over 6 years ago

TI__Genius 11080 points

Hi Keigo,

It is holiday now, and my colleague will feedback you the details in Monday. But to make this question clear, can you clarify below.

1. "Either of device does not return acknowledgement at one resister on the sequence." Is that saying no ACK returned at any IIC communication? can you capture the waveform of SDA and SCL, so we can know what is happening.

2. "But when I transmit only problem resister to device, it return acknowledgement normally." what is problem register? are you saying the fault registers of TAS5782?

This questions will help us understand what is happening to the IIC bus.

Dylan

0 user5811415 over 6 years ago in reply to Dylan Yao

Prodigy 60 points

Hi Dylan,

Thank you for your reply.
Regarding your two questions, can you see attached files at original message?
The attached Excel book shows SDA and SCL waveform, and what is problem register.

Regards,
Keigo Iwahori.

0 Matthew Miao over 6 years ago in reply to user5811415

TI__Expert 6720 points

Hi Keigo,

Is the error register is consistent (always 0x1B) or not? If not, what's MUC I2C pull up / down resistor and speed?

One more thing, it's also needed to connect MCU GND to EVM GND.

Regarding the I2S, MCLK / BCLK / LRCK / SDIN1 is enough for standard I2S format data communication.

Rdgs,

Matthew

0 user5811415 over 6 years ago in reply to Matthew Miao

Prodigy 60 points

Hi Matthew,

The error register is not same.

It not problem with setting a few registers.

But setting a lot of registers continuously will be error.

The value of MCU pull-up regigstor is 1k. Also when value change to 10k or 470, result was same.

I2C speed is standard mode. Please see attached figure.

MCU GND is connected to EVM GND.

Regarding the I2S connection, I understood. Thanks.

Regards,

Keigo Iwahori.

0 Matthew Miao over 6 years ago in reply to user5811415

TI__Expert 6720 points

Hi Keigo,

The first test is to separate 0x98 and 0x9A registers to total two different parts.

If still not working, then could you try to remove PPCMB SW1 and SW2? Because there is no 100kHz I2C communication issue reported with customer system yet.

Rdgs,

Matthew

0 user5811415 over 6 years ago in reply to Matthew Miao

Prodigy 60 points

Dear Matthew,

Ah, doesn't TAS5782MEVM work without PPCMB??

Now, I'm testing by only TAS5782MEVM.

The system is built by TAS5782MEVM, the MCU of Microchip, and S/PDIF to I2S conversion module.

Regards,

Keigo Iwahori

0 Xiaolin Qin over 6 years ago in reply to user5811415

TI__Expert 6295 points

hello,

can you give one clear view of system setup and MCU configuration for our team review? if not convenient to open to E2E, you can write email to Matthew-Miao@ti.com

0 Matthew Miao over 6 years ago in reply to user5811415

TI__Expert 6720 points

Hi Keigo,

TAS5782MEVM needs PPCMB to start working. Because DVDD is provided through PPCMB. More detailed schematic can be found at TAS5782M EVM User Guide.

Please also connect PPCMB to repeat I2C test with MCU.

Rdgs,

Matthew

0 user5811415 over 6 years ago in reply to Matthew Miao

Prodigy 60 points

Hi Matthew,

Sorry for late reply.

Now I'm testing by the simple test circuit that made of handmade board.

Its block diagram is attached.

DVDD is provided by LDO.

Cannot this work?　Just as expected, is the PPCMB need?

Regards,

Keigo Iwahori.

0 Xiaolin Qin over 6 years ago in reply to user5811415

TI__Expert 6295 points

hello,

principally your setup looks OK. now your problem is I2C can't communication between MCU and TAS5782 EVM?

regards

Linda

0 user5811415 over 6 years ago in reply to Xiaolin Qin

Prodigy 60 points

Dear all

This problem was solved.

I replaced the MCU to another one and solved.

Thanks for your kindly cooperate.

Regards,

Keigo Iwahori

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TAS5782MEVM: No acknowledgement from TAS5782EVM.