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关于DS90UB914的一些问题请教大家！
发表于3年前
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DS90UB914的I2C配置：&/p>
&p>（1）0x00& I2C Device ID 的最低位有0和1两个选项，分别指什么含义？&/p>
&p>（2）如果我对914进行配置，那么比如我想向0x06寄存器写入参数0XB4，我需不需要在0x06前加上914的Device ID 吗？对914的配置流程是怎样的呢？&/p>
&p>（3）SER Alias和Slave Alias如何取值呢？（只有一个探测器、一个913、一个914）&/p>
&p>&&/p>&div style=&clear:&>&/div>" />
关于DS90UB914的一些问题请教大家！
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DS90UB914的I2C配置：
（1）0x00& I2C Device ID 的最低位有0和1两个选项，分别指什么含义？
（2）如果我对914进行配置，那么比如我想向0x06寄存器写入参数0XB4，我需不需要在0x06前加上914的Device ID 吗？对914的配置流程是怎样的呢？
（3）SER Alias和Slave Alias如何取值呢？（只有一个探测器、一个913、一个914）
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进士4731分
(1) 0, I2C device ID 由硬件设定(CAD).&&& 1, I2C device ID 由软件设定.即0x00[7:1].
(2)需要写设备地址. 顺序,设备地址,寄存器地址,数据.
(3)ser alias or slave alias 是随便取值的,不要与解串器的地址重复就行.
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十分感谢您的回复！
系统搭建是探测器MT9M034、913、914。探测器MT9M034和913端用外部晶振模式，913的GPO3接50M晶振，GPO2输出了25M时钟给MT9M034，可是MT9M034需要I2C配置才能有像素时钟输出，所以在914端进行配置。MT9M034、913、914的ID和Alias都没错，可是差分线上一直没有信号输出为什么？
914要想将I2C配置传递给913和MT9M034，需要时钟吗？因为现在914上是没有任何时钟的
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进士4731分
914 是不需要时钟的. 但是需要913 的 pclk or reference clk.
DS90UB913/914Q Operation with External Oscillator as Reference Clock, This is the recommended operatingmode
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谢谢您的耐心回答，我还是不太理解！
（1）913是工作在外部晶振模式，GPO3输入50M，GPO2有25M输出，连接914的FPGA的I2C输出正常，可是在差分线上没有信号，为什么？
（2）工作在外部晶振模式时，914的GPIO如何使用？
（3）您说&914 是不需要时钟的&，那么914如何将I2C的配置参数经过高速差分线传递给913和探测器呢？不需要时钟来驱动吗？
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探花5590分
芯片手册上有啊，在I2C配置那里。。(1) 0, I2C device ID 由硬件设定(CAD).&&& 1, I2C device ID 由软件设定.即0x00[7:1].
(2)需要写设备地址. 顺序,设备地址,寄存器地址,数据.
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进士4731分
1)914 是否有ACK?& 差分线上没有信号,你需要检查913. 供电及输入信号.
2)在外部晶振模式,914 &GPIO [0,1]不受影响,& GPIO[2,3]只能跟随本地寄存器设置.
3)914 会用913的PCLK 或参考时钟. 与913通讯需要lock 之后才能进行.
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探花5030分
DS90UB914的I2C配置：
（2）如果我对914进行配置，那么比如我想向0x06寄存器写入参数0XB4，我需不需要在0x06前加上914的Device ID 吗？??914的配置流程是怎样的呢？
（2）：不知道你的DeviceID是什么，I2C通讯要首先写入设备地址，这是为了区分多设备相连接选择设备的问题。其次写入存储单元地址，最后写具体数据。
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914有ACK；913的供电正常；LOCK为高正常。
对914的配置如下：
00C0，0318（PASS Through），06B0，07B2（Alias），，1F02
对913的操作：
（1）B2(Alias) + 寄存器地址 + 寄存器参数。结果913没有ACK，请问我该检查什么？
（2）I2C是从914传给913，外部晶振模式有时钟源源不断地从913传给914，只有一对差分线，这不冲突吗？有没有切换操作？这是如何传输的呢？
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ds90ub914q TI ds914 驱动源码，该芯片配套 3使用，解决图像长距离传输问题 Driver develop 编程 275万源代码下载-
&文件名称: ds90ub914q& & [
& & & & &&]
&&所属分类:
&&开发工具: Unix_Linux
&&文件大小: 26 KB
&&上传时间:
&&下载次数: 0
&&提 供 者:
&详细说明：TI ds914 驱动源码，该芯片配套ds913使用，解决图像长距离传输问题-TI ds914
文件列表(点击判断是否您需要的文件，如果是垃圾请在下面评价投诉):
&&ds90ub914q&&..........\.ds90ub914q.o.cmd&&..........\.ds90ub914q_913.ko.cmd&&..........\.ds90ub914q_913.mod.o.cmd&&..........\.ds90ub914q_913.o.cmd&&..........\.tmp_versions&&..........\.............\ds90ub914q_913.mod&&..........\ds90ub914q.c&&..........\ds90ub914q.h&&..........\ds90ub914q.o&&..........\ds90ub914q_913.ko&&..........\ds90ub914q_913.mod.c&&..........\ds90ub914q_913.mod.o&&..........\ds90ub914q_913.o&&..........\ds90ub914q_demo&&..........\ds90ub914q_demo.c&&..........\Makefile&&..........\Module.symvers&&..........\modules.order
&输入关键字，在本站275万海量源码库中尽情搜索：DS90UB914A-Q1 25-100MHz 10/12 位 FPD-Link III 解串器 | 德州仪器
DS90UB914A-Q1
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25-100MHz 10/12 位 FPD-Link III 解串器
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&Higher performance deserializer recommended for new designs
&Higher performance serializer recommended for new designs
DS90UB914A-Q1 器件提供一个具有高速正向通道和双向控制通道的 FPD-Link III 接口，用于实现单一同轴电缆或差分对上的数据传输。DS90UB914A-Q1 器件的高速正向通道和双向控制通道数据路径上均包含差分信令。该解串器针对电子控制单元 (ECU) 中成像器与视频处理器的连接。该器件非常适用于驱动需要高达 12 位像素深度、2 个同步信号以及双向控制通道总线的视频数据。
该解串器 特有 一个多路复用器，可在两个输入成像器之间进行选择，每次激活一个。主视频传输将 10 位或 12 位数据转换为单条高速串行数据流，另外一个独立的低延迟双向控制通道传输负责接收来自 I2C 端口的控制信息，与视频消隐期无关。
凭借德州仪器 (TI) 的嵌入式时钟技术，可在单一差分对上进行透明的全双工通信，从而运载不对称的双向控制通道信息。这个单个串行数据流通过消除并行数据与时钟路径间的偏差，简化了印刷电路板 (PCB) 走线和电缆上的宽数据总线传输。这样，通过限制数据路径的宽度，大大节省了系统成本，相应地减少了 PCB 层数、电缆宽度以及连接器尺寸和引脚数量。此外，解串器输入还提供自适应均衡功能来补偿较长距离介质上的损耗。内部 DC 均衡编码/解码用于支持 AC 耦合互连。
适用于汽车电子 应用 AEC-Q100
器件温度 2 级：-40℃ 至 +105℃ 环境运行温度范围 器件人体放电模型 (HBM) 静电放电 (ESD) 分类等级 &8kV 器件组件充电模式 (CDM) ESD 分类等级 C6
支持 25MHz 至 100MHz 输入像素时钟
可编程的数据有效载荷：
10 位有效载荷，高达 100MHz
12 位有效载荷，高达 75MHz
连续低延迟双向控制接口通道，支持 I2C，频率达 400kHz
2:1 多路复用器，可在两个输入映像之间进行选择
能够接受超过 15m 同轴/20m 屏蔽双绞线电缆
稳健的同轴电缆供电 (PoC) 操作 接收均衡器自动适应电缆损耗的变化
LOCK 输出报告引脚和 @SPEED BIST（全速内置自检）诊断特性，可验证链路完整性
1.8V 单电源
符合 ISO 10605 和 IEC
静电放电 (ESD) 标准
使用可编程扩展频谱 (SSCG) 和接收器交错输出缓解电磁干扰 (EMI)/电磁兼容性 (EMC)
环视系统 (SVS)
前置摄像头和后置摄像头 驾驶员监视摄像头 (DMS)远距卫星雷达传感器
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DS90UB914A-Q1
Deserializer&
Deserializer&
FPD-Link III LVDS&
FPD-Link III LVDS&
FPD-Link III Coax&
2:1 input multiplexer CRC Dedicated GPIO FPD-Link III Coax Pattern Generator Remote Interrupt Pin Mirroring&
Adaptive Equalizer&
Adaptive Equalizer Programmable Equalizer&
SSCG Staggered Outputs&
BIST LVDS SSC Compatible SSCG&
Automotive&
Automotive&
-40 to 105&
-40 to 105&
48WQFN: 49 mm2: 7 x 7(WQFN)&
48VQFN: 49 mm2: 7 x 7(VQFN)&
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(评估模块和开发板)DS90UB914ATRHSJQ1 Details and Datasheets
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Reference Designs
TIDA-00271?SYS-null-null-findchips-refdes-rd-null-wwe: The ADAS Sensor Interconnect Board is intended for applications where remote sensors like cameras, LIDAR or radar modules need to be connected to a central processing ECU. The board supports up to 3 coaxial and 1 LVDS twisted pair data inputs as well as 3 FMC cable and 1 board to board connector as data outputs to a processing ECU.
Camera or other sensor modules connected through the coax connector (SMB standard) are powered directly via the coaxial cable (power over coax) from the interconnect board. Because of an independent complete power solution for all ICs and power over coax on board, a single car battery or similar wide voltage supply can be directly connected to the power connector on the ADAS Sensor Interconnect Board. An on-board uC and LIN interface allow control and configuration of the Interconnect board as well as plug-and-play operation.
TIDA-00133: The TIDA-00133 reference design is a high speed serial video interface to connect a remote automotive camera module to a display or machine vision processing system. It uses TIs FPD-Link III SerDes technology to transmit uncompressed MegaPixel video data, bidirectional control signals and power either over shielded twisted pair or coax cable. This design incorporates the DS90UB913A-CXEVM and DS90UB914A-CXEVM boards together to create the solution.
TIDA-00162?SYS-null-null-findchips-refdes-rd-null-wwe: TIDA-00162 incorporates the
camera module, video interface
and control functionality for surround view systems for automotive applications. The reference design includes four 1 Mp cameras (OmniVision OV10635), four Serializer+Power boards and a daughter board with 6 Deserializers+Power. A convenient FMC connector is available on the daughter board to connect the reference design to a FPGA or MCU board for video processing. The benefit of using DS90UB913A-Q1 serializer and DS90UB914A-Q1 deserializer is that it interfaces seamlessly with OmniVision’s camera module, allows you to transmit high speed data, bidirectional control and power over a single coaxial cable.
TIDA-00133?SYS-null-null-findchips-refdes-rd-null-wwe: The TIDA-00133 reference design is a high speed serial video interface to connect a remote automotive camera module to a display or machine vision processing system. It uses TIs FPD-Link III SerDes technology to transmit uncompressed MegaPixel video data, bidirectional control signals and power either over shielded twisted pair or coax cable. This design incorporates the DS90UB913A-CXEVM and DS90UB914A-CXEVM boards together to create the solution.
TIDA-00271: The ADAS Sensor Interconnect Board is intended for applications where remote sensors like cameras, LIDAR or radar modules need to be connected to a central processing ECU. The board supports up to 3 coaxial and 1 LVDS twisted pair data inputs as well as 3 FMC cable and 1 board to board connector as data outputs to a processing ECU.
Camera or other sensor modules connected through the coax connector (SMB standard) are powered directly via the coaxial cable (power over coax) from the interconnect board. Because of an independent complete power solution for all ICs and power over coax on board, a single car battery or similar wide voltage supply can be directly connected to the power connector on the ADAS Sensor Interconnect Board. An on-board uC and LIN interface allow control and configuration of the Interconnect board as well as plug-and-play operation.
TIDA-00162: TIDA-00162 incorporates the
camera module, video interface
and control functionality for surround view systems for automotive applications. The reference design includes four 1 Mp cameras (OmniVision OV10635), four Serializer+Power boards and a daughter board with 6 Deserializers+Power. A convenient FMC connector is available on the daughter board to connect the reference design to a FPGA or MCU board for video processing. The benefit of using DS90UB913A-Q1 serializer and DS90UB914A-Q1 deserializer is that it interfaces seamlessly with OmniVision’s camera module, allows you to transmit high speed data, bidirectional control and power over a single coaxial cable.
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LVDS Deserializer 0.412V Automotive 48-Pin WQFN EP T/R
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DS90UB914ATRHSTQ1 供应信息 IC Datasheet 数据表 (1/68 页)
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DS90UB914ATRHSTQ1
DS90UB913A -Q1 / DS90UB914A -Q1 25到100 MHz的10月12日位
[DS90UB913A-Q1/DS90UB914A-Q1 25 to100 MHz 10/12-Bit]
&&DS90UB914ATRHSTQ1PDF文件：
DS90UB913A -Q1 / DS90UB914A -Q1 25到100 MHz的10月12日位[DS90UB913A-Q1/DS90UB914A-Q1 25 to100 MHz 10/12-Bit]
文件大小：&&1317 KPDF页数：
&&68 页联系供应商：&& 品牌Logo:
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SC-74A，SOT-753&
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DS90UB914ATRHSTQ1&&
SNLS443A – MAY 2013 – REVISED JUNE 2013DS90UB913A-Q1/DS90UB914A-Q1 25 to100 MHz 10/12-BitFPD-Link III Serializer and DeserializerCheck for Samples:1FEATURES25 MHz to 100 MHz Input Pixel Clock SupportCoaxial or Single Differential Pair InterconnectProgrammable Data Payload:– 10-bit Payload up to 100 Mhz– 12-bit Payload up to 75 MHzContinuous Low Latency Bidirectional ControlInterface Channel with I2C(TM) Support @400kHz2:1 Multiplexer to choose between two inputimagesEmbedded Clock with DC-balanced Coding toSupport AC-coupled InterconnectsCapable of Driving up to 15m Coaxial or 20mShielded Twisted-pair CablesReceive Equalizer Automatically Adapts forChanges in Cable Loss4 Dedicated General Purpose Input (GPI)/Output (GPO)LOCK Output Reporting Pin and @SPEEDBIST Diagnosis Feature to Validate LinkIntegrity1.8V, 2.8V or 3.3V-Compatible Parallel Inputson SerializerSingle Power Supply at 1.8VISO 10605 and IEC
ESD CompliantAutomotive Grade Product: AEC-Q100 Grade 2qualifiedTemperature Range-40°Cto +105°CSmall Serializer Rootprint (5mm x 5mm)EMI/EMC Mitigation - Deserializer– Programmable Spread Spectrum (SSCG)Outputs– Receiver Staggered OutputsDESCRIPTIONTheDS90UB913A-Q1/DS90UB914A-Q1chipsetoffers a FPD-Link III interface with a high-speedforward channel and a bidirectional control channelfor data transmission over a single coaxial cable ordifferential pair. The DS90UB913A-Q1/914A-Q1chipset incorporates differential signaling on both thehigh-speed forward channel and bidirectional controlchannel data paths. The serializer/deserializer pair istargeted for connections between imagers and videoprocessors in an ECU (Electronic Control Unit). Thischipset is ideally suited for driving video datarequiring up to 12-bit pixel depth plus twosynchronization signals along with bidirectionalcontrol channel bus.The deserializer features a multiplexer to allowselection between two input imagers, one active at atime. The primary video transport converts 10-bit or12-bit data to a single high-speed serial stream, alongwith a separate low latency bidirectional controlchannel transport that accepts control informationfrom an I2C port and is independent of video blankingperiod.Using TI’s embedded clock technology allowstransparent full-duplex communication over a singledifferential pair, carrying asymmetrical bidirectionalcontrol channel information in both directions. Thissingle serial stream simplifies transferring a wide databus over PCB traces and cable by eliminating theskew problems between parallel data and clockpaths. This significantly saves system cost bynarrowing data paths that in turn reduce PCB layers,cable width, and connector size and pins. In addition,the Deserializer inputs provide adaptive equalizationto compensate for loss from the media over longerdistances. Internal DC-balanced encoding/decoding isused to support AC-coupled interconnects. TheDS90UB913A-Q1 serializer is offered in a 32-pinWQFNpackageandtheDS90UB914A-Q1deserializer is offered in a 48-pin WQFN package.ooo2ooooooooooooooAPPLICATIONSoo1Front or Rear-View Camera for CollisionMitigationSurround View for Parking Assistance2Please be aware that an important notice concerning availability, standard warranty, and use in critical applications ofTexas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.I2C is a trademark of Philips Semiconductor Corp..Copyright (C) 2013, Texas Instruments IncorporatedPRODUCTION DATA information is current as of publication date.Products conform to specifications per the terms of the TexasInstruments standard warranty. Production processing does notnecessarily include testing of all parameters.}