HDMI采集晶片 ADV7611采集PC資料調試總結

開發環境：TI DM365 平台， ADV7611采集闆， CCS5.5

第一步：I2C調通

這張是 ADV7611 讀寫的時序圖，可以看出在寫和讀的時候發送位址資料的時候的停止位資訊是不同的，在寫的時候是不需要停止位的，但是讀的時候是要停止位的。如果I2C在硬體沒問題的時候可以考慮是不是這方面的問題。

第二步：map 配置：

根據官方推薦配置進行配置：

0x98, 0xFF, 0x80,    // I2C reset
0x98, 0xF4, 0x80,// CEC SLAVE ADDRESS
0x98, 0xF5, 0x7C,// INFOFRAME SLAVE ADDRESS
0x98, 0xF8, 0x4C,// DPLL SLAVE ADDRESS
0x98, 0xF9, 0x64,// KSV SLAVE ADDRESS
0x98, 0xFA, 0x6C,// EDID SLAVE ADDRESS
0x98, 0xFB, 0x68,// HDMI SLAVE ADDRESS
0x98, 0xFD, 0x44,// CP SLAVE ADDRESS
           

第三步：EDID 

EDID裡面主要是定義了這顯示裝置所支援的圖像分辨率，支援的聲音格式，聲音通道，及3D等等，其目的是告訴外接裝置我所支援的特性，讓外接裝置輸出一個我所支援的timing，否則外接裝置輸出的timing并不支援的話那就沒有圖像，聲音的顯示了。ADV7611 在上電後需要配置 EDID 使得輸出端讀取EDID 的内容然後配置相應的輸出，下面是相應的EDID 配置：

unsigned char vga_edid[256]
=
   {
0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, //00
0x06, 0x8F, 0x07, 0x11, 0x01, 0x00, 0x00, 0x00, //08
0x17, 0x11, 0x01, 0x03, 0x80, 0x0C, 0x09, 0x78, //10
0x0A, 0x1E, 0xAC, 0x98, 0x59, 0x56, 0x85, 0x28, //18
0x29, 0x52, 0x57, 0x00, 0x00, 0x00, 0x01, 0x01, //20
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, //28
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x8C, 0x0A, //30
0xD0, 0x8A, 0x20, 0xE0, 0x2D, 0x10, 0x10, 0x3E, //38
0x96, 0x00, 0x81, 0x60, 0x00, 0x00, 0x00, 0x18, //40
0x01, 0x1D, 0x80, 0x18, 0x71, 0x1C, 0x16, 0x20, //48
0x58, 0x2C, 0x25, 0x00, 0x81, 0x49, 0x00, 0x00, //50
0x00, 0x9E, 0x00, 0x00, 0x00, 0xFC, 0x00, 0x56, //58
0x41, 0x2D, 0x31, 0x38, 0x30, 0x39, 0x41, 0x0A, //60
0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xFD, //68
0x00, 0x17, 0x3D, 0x0D, 0x3E, 0x11, 0x00, 0x0A, //70
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x01, 0x1C, //78
0x02, 0x03, 0x34, 0x71, 0x4D, 0x82, 0x05, 0x04,   //80
0x01, 0x10, 0x11, 0x14, 0x13, 0x1F,0x06, 0x15,  //88
0x03, 0x12, 0x35, 0x0F, 0x7F, 0x07,0x17, 0x1F,
0x38, 0x1F, 0x07, 0x30, 0x2F, 0x07,0x72, 0x3F,
0x7F, 0x72, 0x57, 0x7F, 0x00, 0x37,0x7F, 0x72,
0x83, 0x4F, 0x00, 0x00, 0x67, 0x03,0x0C, 0x00,
0x10, 0x00, 0x88, 0x2D, 0x00, 0x00,0x00, 0xFF,
0x00, 0x0A, 0x20, 0x20, 0x20, 0x20,0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20,0x00, 0x00,
0x00, 0xFF, 0x00, 0x0A, 0x20, 0x20,0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20,0x20, 0x20,
0x00, 0x00, 0x00, 0xFF, 0x00, 0x0A,0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20,0x20, 0x20,
0x20, 0x20, 0x00, 0x00, 0x00, 0x00,0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0xDA,
}；
void i2c_program_edid(unsigned char *data, int length)
{
unsigned long i;
ADV7611_Write(0x64, 0x77, 0x00);
ADV7611_Write(0x64, 0x74, 0x00);
for (i=0; i<length; i++)
ADV7611_Write(0x6C, i, data[i]);
for (i=0; i<800000; i++); // delay for HPA
ADV7611_Write(0x64, 0x77, 0x00);
ADV7611_Write(0x64, 0x52, 0x20);
ADV7611_Write(0x64, 0x53, 0x00);
ADV7611_Write(0x64, 0x70, 0x9E);
ADV7611_Write(0x64, 0x74, 0x01);
}
           

第四步:其他參數配置

0x98, 0x00, 0x02,
0x98, 0x01, 0x05,
0x98, 0x02, 0xF5,// Auto CSC, no YPbPr colorspace conversion,
// set the output range of the digital data = limited range (16 to 235), YCrCb out


0x98, 0x03, 0x20,// 0x80 = 16-bit ITU-656 SDR mode; 0x20 = 8-bit 4:2:2 DDR mode (ITU-656 mode)
0x98, 0x04, 0x62,// 011 - P[23:16] V/R, P[15:8] Y/G, P[7:0] U/CrCb/B ; XTAL = 28.868 MHz
0x98, 0x05, 0x28,// DE output on the FIELD/DE pin ; AV Codes Off


// 0x98, 0x06, 0xA0,//
0x98, 0x0B, 0x44,// Powers up CP and digital sections of HDMI block; Powers up XTAL buffer to the digital core
0x98, 0x0C, 0x42,// Chip is operational,Disables power save mode,Powers up the clock to the CP core,Powers up the pads of the digital output pins
0x98, 0x14, 0x7F,// High drive strength of data output drivers;output pixel clock out signal on the LLC pin,
                    // synchronization pins, HS, VS/FIELD, FIELD/DE;audio output interface pins (AP0, AP1/I2S_TDM, AP2 ... AP5).
0x98, 0x15, 0x80,// Disable Tristate of Pins
// 0x98, 0x19, 0x83,// LLC DLL phase
0x98, 0x19, 0xca,// LLC DLL phase
// 0x98, 0x19, 0xCA,// LLC DLL phase
// 0x98, 0x19, 0x8A,// LLC DLL phase
0x98, 0x33, 0x40,// LLC DLL enable
0x44, 0xBA, 0x01,// Set HDMI FreeRun when the TMDS clock is not detected on the selected HDMI port
// 0x44, 0x3E, 0x01,
0x64, 0x00, 0x40,
0x64, 0x40, 0x81,// Disable HDCP 1.1 features
0x68, 0x9B, 0x03,// ADI recommended setting
0x68, 0xC1, 0x01,// ADI recommended setting
0x68, 0xC2, 0x01,// ADI recommended setting
0x68, 0xC3, 0x01,// ADI recommended setting
0x68, 0xC4, 0x01,// ADI recommended setting
0x68, 0xC5, 0x01,// ADI recommended setting
0x68, 0xC6, 0x01,// ADI recommended setting
0x68, 0xC7, 0x01,// ADI recommended setting
0x68, 0xC8, 0x01,// ADI recommended setting
0x68, 0xC9, 0x01,// ADI recommended setting
0x68, 0xCA, 0x01,// ADI recommended setting
0x68, 0xCB, 0x01,// ADI recommended setting
0x68, 0xCC, 0x01,// ADI recommended setting
0x68, 0x00, 0x00,// Set HDMI Input Port A
0x68, 0x83, 0xFE,// Enable clock terminator for port A
0x68, 0x6F, 0x0C,// ADI recommended setting
0x68, 0x85, 0x1F,// ADI recommended setting
0x68, 0x87, 0x70,// ADI recommended setting
0x68, 0x8D, 0x04,// LF gain equalizer settings for dynamic mode range 1
0x68, 0x8E, 0x1E,// HF gain equalizer settings for dynamic mode range 1
0x68, 0x1A, 0x8A,// unmute audio
0x68, 0x57, 0xDA,// ADI recommended setting
0x68, 0x58, 0x01,// ADI recommended setting
0x68, 0x03, 0x98,    // DIS_I2C_ZERO_COMPR
0x68, 0x75, 0x10,// DDC drive strength
           

這個配置是yuv4:2:2 8bit的配置