TDA9321H.zip_视频处理芯片

#include "TDA9321H.h" #include "include.h" #include "I2C_soft.h" #define TDA9321H_IIC_INIT() INIT_IIC() #define TDA9321H_IIC_WR(reg,data) I2C_write(TDA9321H_ADDR,reg,data) #define TDA9321H_IIC_RD(reg) I2C_Read(TDA9321H_ADDR,reg) #define TDA9321H_IIC_RDBUFF(reg,p,bytes) I2C_ReadBuff(TDA9321H_ADDR,reg,p,bytes) void TDA9321H_IIC_init() { uint8 SUBADDR[4],ID; TDA9321H_IIC_INIT(); TDA9321H_IIC_RDBUFF(SUBADDRESS0,SUBADDR,4); ID = ADDR3_ID_8BIT( SUBADDR[3] ); //获取设备ID ASSERT(ID==1||ID==9); TDA9321H_IIC_WR(COLOUR_DECODER0,0 |DECODER_MODE(2) //PAL制式 A晶体 // |COLOUR_DECODER0_XD_MASK //D晶体使能 // |COLOUR_DECODER0_XC_MASK //C晶体使能 // |COLOUR_DECODER0_XB_MASK //B晶体使能 |COLOUR_DECODER0_XA_MASK //A晶体使能 ); TDA9321H_IIC_WR(COLOUR_DECODER1,0 // |COLOUR_DECODER1_MACP_MASK //外接陷波器 |COLOUR_DECODER1_HOB_MASK //辅助输出消隐 |COLOUR_DECODER1_HBC_MASK //受信噪比控制 |COLOUR_DECODER1_HD_MASK //PAL辅助解调 |COLOUR_DECODER1_FCO_MASK //强制彩色接入 |COLOUR_DECODER1_ACL_MASK //自动彩色限制 // |COLOUR_DECODER1_CB_MASK //色度基带中心频率fc // |COLOUR_DECODER1_BPS_MASK //色度基带延迟线fc ); TDA9321H_IIC_WR(LUMINANCE,0 |LUMINANCE_GAI(1) //亮度增益0dB |LUMINANCE_YD(11) //亮度延迟280ns ); TDA9321H_IIC_WR(HUE_CONTROL,0 |HUE_CONTROL_ADDR(TDA9321H_ADDR) ); TDA9321H_IIC_WR(SPARE0,0 ); TDA9321H_IIC_WR(SYNCHRONIZATION0,0 |SYNCHRONIZATION0_FOR(3) //自动场频，不同步为50HZ |SYNCHRONIZATION0_FO(0) //行鉴相器快速时间常数 // |SYNCHRONIZATION0_VIM_MASK //识别到被选的CVBS // |SYNCHRONIZATION0_POC_MASK //同步模式无效 |SYNCHRONIZATION0_VID_MASK //视频识别无效 ); TDA9321H_IIC_WR(SYNCHRONIZATION1,0 |SYNCHRONIZATION1_BSY_MASK //Y0引出脚消除同步信号 |SYNCHRONIZATION1_HO_MASK //行同步脉冲 // |SYNCHRONIZATION1_EMG_MASK //防复制信号使能 // |SYNCHRONIZATION1_NCIN_MASK //场分频切至搜索窗口 ); TDA9321H_IIC_WR(SPARE1,0 ); TDA9321H_IIC_WR(VIDEO_SWITCHES0,0 |VIDEO_SWITCHES0_ECMB_MASK //色副载波使能 |VIDEO_SWITCHES0_DEC(0) //视频信号切换CVBSint ); TDA9321H_IIC_WR(VIDEO_SWITCHES1,0 |VIDEO_SWITCHES1_TXT(0) //图文信号选择CVBSint |VIDEO_SWITCHES1_PIP(0) //画中画信号选择CVBSint ); TDA9321H_IIC_WR(RGB_SWITCH,0 |RGB_SWITCH_YUV_MASK //YUV输入有效 // |RGB_SWITCH_ECL_MASK //外钳位脉冲加到HA/CLP引出脚 // |RGB_SWITCH_IE2_MASK //快速消隐RGB2 // |RGB_SWITCH_IE1_MASK //快速消隐RGB1 ); TDA9321H_IIC_WR(OUTPUT_SWITCHES,0 // |OUTPUT_SWITCHES_OS1_MASK //OS1输出高电平 // |OUTPUT_SWITCHES_OS0_MASK //OS0输出高电平 ); TDA9321H_IIC_WR(VISION_IF,0 |VISION_IF_FFI_MASK //快速时间常数，频道搜索准确 |VISION_IF_IFO_MASK //关断图像中频放大电路 // |VISION_IF_GD_MASK //群延时校正特性B/G制标准 // |VISION_IF_MOD_MASK //正极性调制 // |VISION_IF_AFW_MASK //扩展AFC窗口宽度 // |VISION_IF_IFS_MASK //图像中频灵敏度减小 // |VISION_IF_STM_MASK //搜索调谐模式降低灵敏度 // |VISION_IF_VSW_MASK //视频静噪切断图像中频信号 ); TDA9321H_IIC_WR(TUNER_TAKEOVER,0 |TUNER_TAKEOVER_ADDR(TDA9321H_ADDR) ); TDA9321H_IIC_WR(ADJUSTMENT_IF_PLL,0 // |ADJUSTMENT_IF_PLL_LFA_MASK //锁相环解调器频率偏移用于SECAM-L制的频率偏移 |ADJUSTMENT_IF_PLL_ADDR(TDA9321H_ADDR) ); TDA9321H_IIC_RDBUFF(SUBADDRESS0,SUBADDR,4); }