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  • ST7789V IC规格书

     Single chip TFT-LCD Controller/Driver with On-chip Frame Memory (FM) Display Resolution: 240*RGB (H) *320(V) Frame Memory Size: 240 x 320 x 18-bit = 1,382,400 bits LCD Driver Output Circuits- Source Outputs: 240 RGB Channels- Gate Outputs: 320 Channels- Common Electrode Output Display Colors (Color Mode)- Full Color: 262K, RGB=(666) max., Idle Mode Off- Color Reduce: 8-color, RGB=(111), Idle Mode On Programmable Pixel Color Format (Color Depth) for Various Display Data input Format- 12-bit/pixel: RGB=(444)- 16-bit/pixel: RGB=(565)- 18-bit/pixel: RGB=(666) MCU Interface- Parallel 8080-series MCU Interface (8-bit, 9-bit, 16-bit & 18-bit)- 6/16/18 RGB Interface(VSYNC, HSYNC, DOTCLK, ENABLE, DB[17:0])- Serial Peripheral Interface(SPI Interface)- VSYNC Interface

    标签: st7789v LCD

    上传时间: 2022-03-04

    上传用户:

  • ADC模数转换器件Altium Designer AD原理图库元件库

    ADC模数转换器件Altium Designer AD原理图库元件库SV text has been written to file : 4.4 - ADC模数转换器件.csvLibrary Component Count : 29Name                Description----------------------------------------------------------------------------------------------------ADC0800             National 8-Bit Analog to Digital ConverterADC0809             ADC0831             ADCADC0832             ADC8                Generic 8-Bit A/D ConverterCLC532              High-Speed 2:1 Analog MultiplexerCS5511              National 16-Bit Analog to Digital ConverterDAC8                Generic 8-Bit D/A ConverterEL1501              Differential line Driver/ReceiverEL2082              Current-Mode MultiplierEL4083              Current Mode Four Quadrant MultiplierEL4089              DC Restored Video AmplifierEL4094              Video Gain Control/FaderEL4095              Video Gain Contol/Fader/MultiplexerICL7106             LMC6953_NSC         PCI Local Bus Power SupervisorMAX4147             300MHz, Low-Power, High-Output-Current, Differential Line DriverMAX4158             350MHz 2-Channel Video Multiplexer-AmplifierMAX4159             350MHz 2-Channel Video Multiplexer-AmplifierMAX4258             250MHz, 2-Channel Video Multiplexer-AmplifierMAX4259             250MHz 2-Channel Video Multiplexer-AmplifierMAX951              Ultra-Low-Power, Single-Supply Op Amp + Comparator + ReferenceMAX952              Ultra-Low-Power, Single-Supply Op Amp + Comparator + ReferenceMC1496              Balanced Modulator/DemodulatorPLL100k             Generic Phase Locked LoopPLL10k              Generic Phase Locked LoopPLL5k               Generic Phase Locked LoopPLLx                Generic Phase Locked Loop水位计              

    标签: adc 模数转换 altium designer

    上传时间: 2022-03-13

    上传用户:

  • CH341系列编程器芯片usb转串口Altium Designer AD原理图库元件库

     CH341系列编程器芯片usb转串口Altium Designer AD原理图库元件库CSV text has been written to file : 1.9 - CH341系列编程器芯片.csvLibrary Component Count : 56Name                Description----------------------------------------------------------------------------------------------------CH311Q              PC debug port monitorCH331T              Mini USB Disk ControllerCH340G              CH340H              USB to TTL Serial / UART,  USB to IrDACH340T              USB to TTL Serial / UART,  USB to IrDACH340R              USB to IrDA, USB to RS232 SerialCH340S_P            USB to Print Port / ParallelCH340S_S            USB to TTL Serial / UART, pin compatible with CH341CH341A_S            USB to TTL Serial / UART / I2C/IICCH341S_P            USB to Print Port / ParallelCH341A_P            USB to Print Port / ParallelCH341S_S            USB to TTL Serial / UARTCH341S_X            USB to EPP Parallel / SPI / I2C/IICCH341A_X            USB to EPP Parallel / SPI / I2C/IICCH341T              USB to TTL Serial / UART / I2C/IICCH345T              USB to MidiCH352L_M            PCI to 8255 mode 2 Parallel for MCU and 16C550 UART / IrDACH352L_P            PCI to Print Port / Parallel and 16C550 UART / IrDACH352L_S            PCI to Dual 16C550 UART, TTL Serial*2 / IrDA*1CH362L              PCI Device / Slave only for RAM / Expansion ROMCH364F              Member of CH364 chipsetsCH364P              PCI Device / Slave Embedded Flash ROM, for Expansion ROMCH365P              PCI Device / Slave, for I/O port or RAM / ROMCH372T              USB Device / Slave for MCU, ParallelCH372A              USB Device / Slave for MCU, ParallelCH372V              USB Device / Slave for MCU, ParallelCH374S              USB Host & Device / Slave for MCU, parallel / SPICH374T              USB Host & Device / Slave for MCU, parallel / SPICH375S              USB Host & Device / Slave for MCU, parallel / UART SerialCH375A              USB Host & Device / Slave for MCU, parallel / UART SerialCH375V              USB Host & Device / Slave for MCU, parallel / UART SerialCH411G              FDC MFM encode and decodeCH421A              Dual port bufferCH421S              Dual port bufferCH423D              I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DriveCH423S              I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DriveCH423D_D            I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DriveCH423S_D            I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DriveCH423G              I2C/IIC I/O expander, 6 GPO + 5 GPIOCH432Q              Dual 16C550 UART with IrDA, parallel / SPICH432T              SPI Dual 16C550 UART with IrDACH450K              6 Digits / 48 LEDs Drive & 8x6 Keyboard, I2C/IICCH450H              6 Digits / 48 LEDs Drive & 8x6 Keyboard, I2C/IICCH450L              8 Digits / 64 LEDs Drive & 8x8 Keyboard, I2C/IICCH451L              8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH451S              8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH451D              8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH452L_2            8 Digits / 64 LEDs Drive & 8x8 Keyboard, I2C/IICCH452L_4            8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH452S_2            8 Digits / 64 LEDs Drive & 8x8 Keyboard, I2C/IICCH452S_4            8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH453S              16 Digits / 128 LEDs Drive, I2C/IICCH453D              16 Digits / 128 LEDs Drive, I2C/IICPCI                 32Bit PCI Bus, simple / short cardPCI32               32Bit PCI BusUSB                 USB Port

    标签: ch341 编程芯片 usb 串口 altium designer

    上传时间: 2022-03-13

    上传用户:

  • Linux内核裁剪与编译

    学习本章要达到的目标:口1.理解 Linux内核编译选项的含义口2.学会根据不同的硬件配置裁减定制内核;口3.理解内核编译过程中每一步的功能,并编译 Linux2.630内核。需要去重新编译 Linux内核口增加操作系统对新的硬件设备的支持口增加内核新的功能口对内核代码或内核配置进行优化时Prompt for development and/or incomplete code/drivers口显示处于开发调试中或尚未完善的代码或驱口选中:如果是测试人员或者开发者;口不选:其他情况Local version append to kerne release口追加本地版本号口使用命令“uname-a”进行查看。POSIX Message Queues口 POSIX消息队列的支持,这是 POSIX进程间通信的一部分BSD Process Accounting口将进程的统计信息写入文件口信息通常包括建立时间、所有者、命令名称、内存使用、控制终端等,这个选项一般是选择的。Enable loadable module support口使能可加载模块支持口如果使能此选项则可以通过"makemodules_insta"把内核模块安装在/lib/modules/中Kernel support for ELF binaries口内核对ELF文件格式的支持口ELF是开放平台下最常用的二进制文件格式支持动态连接,支持不同的硬件平台Kernel support for a out and ECOFF binaries口早期UNIX系统的可执行文件格式,目前已经被ELF格式取代Unix domain sockets口本机高效率的 Socket口仅能运行在本机上的高效率的 Socket,简称 Unix socket。口很多进程使用为这种机制在操作系统内部进行进程间通信,例如 X Window和 syslog等TCP/IP networking口TcP/IP网络协议的支持

    标签: linux

    上传时间: 2022-03-29

    上传用户:kingwide

  • linux内核编程指南

    因此,您想编写一个内核模块。您知道C,您已经编写了一些可以作为进程运行的常规程序,现在您想知道真正的动作在哪里,一个通配指针可以擦掉文件系统,核心转储意味着重新启动。内核模块到底是什么?模块是可以根据需要加载和卸载的代码段。它们扩展了内核的功能,而无需重新引导系统。例如。模块驱动程序的一种类型是设备驱动程序,它允许内核访问没有模块的系统硬件,我们将不得不构建单片内核并将新功能直接添加到内核映像中,除了具有更大的内核之外,这还具有缺点每次我们想要新功能时都要求我们重建并重新启动内核的过程So, you want to write a kernel module. You know C, you, ve written a few normal programs to run as processes, and now you want to get to where the real action is, to where a single wild pointer can wipe out your file system and a core dump means a reboot.What exactly is a kernel module? Modules are pieces of code that can be loaded and unloaded into th upon demand. They extend the functionality of the kernel without the need to reboot the system. For example.one type of module is the device driver, which allows the kernel to access hardware connected to the syste without modules, we would have to build monolithic kernels and add new functionality directly into the em ernel image, Besides having larger kernels

    标签: linux

    上传时间: 2022-03-30

    上传用户:

  • 基于STM32的智能小车四轮驱动控制系统设计

    在传统智能小车驱动电路设计中,较多考虑使用直流电机还是步进电机,电机功率、能耗等性能参数。使用具有armCortexM4内核的STM32嵌入式平台控制四轮的4个直流电机。文章基于PWM技术及PID算法,对四轮进行精准地速度、转向及启停控制,实验表明此小车具有优越各种地形适应能力。In the traditional intelligent car drive circuit design,DC motor or stepping motor,motor power,energy consumption and other performance parameters are considered.The four DC motors with four wheels are controlled by STM32 embedded platform with arm Cortex M4 kernel.Based on the PWM technology and PID algorithm,the accurate ground speed,steering,and start-stop control of the four wheels are carried out.The experiment shows that the vehicle has the superior adaptability to all kinds of terrains.

    标签: stm32 智能小车 控制系统

    上传时间: 2022-04-02

    上传用户:

  • 基于数字信号处理的超声手术刀电源控制电路设计与实现

    目的:自主研制一款超声手术刀电源控制系统,以减少能量的消耗,维持手术刀的正常温度。方法:对超声换能器在谐振附近的等效电路建立模型,并设计基于数字信号处理(DSP)的超声手术刀的硬件控制系统。结果:经对电源控制系统的电路和工作性能测试,生成的电流和电压的有效值等参数,能够及时调整电源的频率,并达到预期的功能指标,使超声手术刀工作在谐振状态。结论:以DSP为核心设计的超声手术刀电源控制系统,测试指标均能够达到预期的要求,能够使系统在谐振状态下工作。Objective: To independently develop a power control system of ultrasonic scalpel so as to reduce the energy consumption and maintain the normal temperature of ultrasonic scalpel. Methods: In this paper, the model of equivalent circuit of ultrasonic transducer nearby syntony was built up, and the hardware control system of ultrasonic scalpel based on digital signal processing(DSP) was designed. Results: Through testing the circuit and work performance of power control system, the series of parameters such as effective value and so on which were produced by this system could adjust frequency of power source in time and attain anticipative functional indicator, and it took the ultrasonic scalpel to work in syntonic situation. Conclusion: The tested indicators of power control system of ultrasonic scalpel based on the kernel design of DSP can attain anticipative requirement, and can take this system to work in syntonic situation.

    标签: 数字信号处理 超声手术刀 电源控制

    上传时间: 2022-04-03

    上传用户:bluedrops

  • LT8711H是Type-CDP1.2转HDMI1.4芯片

    LT8711H是一款高性能Type-C / DP1.2至HDMI1.4转换器,旨在将USB Type-C源或DP1.2源连接至HDMI1.4接收器。LT8711H集成了符合DP1.2的接收器和符合HDMI1.4的发送器。此外,还包括两个CC控制器,用于CC通信以实现DP Alt Mode和功率传输功能,一个用于上游Type-C端口,另一个用于下游端口

    标签: Type-C HDMI

    上传时间: 2022-04-25

    上传用户:20125101110

  • 基于PSIM仿真的开关电源Boost电路的设计

    基于PSIM仿真软件,分析了Boost电路拓扑结构,设定了参数要求进行电路仿真设计,通过电路仿真软件PSIM对Boost电路工作在CCM模式下,合理设置占空比参数。实验结果表明理论分析与仿真的一致性和参数设计的正确性,输出电压和电流参数稳定,Boost电路输出效率高。This design is based on PSIM simulation software,analyzes the topology of Boost circuit,sets the parameter re- quirements for circuit simulation design,and reasonably sets the duty cycle parameters for Boost circuit working in CCM mode through PSIM simulation software.The experimental results show that the theoretical analysis and simulation are consis- tent and the parameter design is correct,the output voltage and current parameters are stable.

    标签: psim 开关电源 boost

    上传时间: 2022-05-04

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  • Linux Kernel Developments 内核开发

    最近在学习Linux内核,这本数好极了,英文原版带标签,非影音,效果棒棒哒,纯粹共享不要积分哦

    标签: linux

    上传时间: 2022-05-04

    上传用户: