本资源含有按键消抖的所有代码以及仿真文件，已通过板级验证。实验内容： key0,+1; key1, -1; 最终结果显示在4个led中。

uart 串口接收模块， 通过串口助手调试验证，包含本实验所需的vhdl代码以及仿真文件，所用实验开发板：AC620

UART串口发送模块，通过串口助手调试验证，包含实验所需的vhdl代码以及仿真文件，实验开发板AC620

来源：单片机及嵌入式系统应用  作者：国防科学技术大学 樊超 桂先洲     一个优秀的RTOS(Real-Time Operating system)不但要拥有一个高可靠、多任务的实时内核，还应具有可剪裁和可移植的能力。RTEMS(the Real - Time Executivefor Multiprocessor Systems)[1]就是这样的系统，它提供的环境可以满足高性能的嵌入式多任务实时应用。目前，RTEMS支持的CPU系列有：A29k、ARM、H8300、1386、1960、M68k、MIPS、PPC和SPARC等。    板级支持包BSP(Board Support Pac

STM32CubeF4_V1.26.1 STM32F4xx系列官方固件库驱动库板级支持包源代码，直接加入开发环境调用链接编译即可。

zedbard上FreeRtos板级支持包(bsp) ,带使用说明，freertos7.0.2, ISE14.4 下载完成后，将其bsp文件夹下的freertos-zynq_v1_01_a拷贝至ISE安装目录下（%installPath/14.4/ISE_DS/EDK/sw/lib/bsp），将sw_apps目录下的文件拷贝至%installPath/14.4/ISE_DS/EDK/sw/lib/sw_apps目录下。 在使用ISE 创建工程时，OS Platform选择freertos_zynq，然后选择相应的freertos例程。

摩託羅拉高级工程师对电路PCB设计介绍

SSI208P，主要应用于同步串行接口（SSI）光电编码器高速数据采集系统的板级开发。SSI208P模块将同步串行接口数据转换成并行接口数据，内部集成了SSI同步时钟发生器、脉冲计数器、数据串并转换、接口控制逻辑、输出控制以及收发驱动器（TTL-RS422电平转换）等功能单元，用户无须了解SSI数据格式，该模块自动将SSI数据转换成8位并行数据，简化了SSI编码器与DSP、单片机、PC104等控制器的接口。

Version: 2.2.0 (2021-07-22) Keil.STM32F3xx_DFP.2.2.0.pack Updated Pack to STM32Cube_FW_F3 Firmware Package version V1.11.2: Updated HAL to version V1.5.5. External interrupts and events (EXTI) HAL Universal serial bus full-speed device interface (USB) LL Added global define USE_HAL_DRIVER and USE_FULL_LL_DRIVER to the component ::Device:STM32Cube Framework:STM32CubeMX. Added global define USE_HAL_DRIVER and USE_FULL_LL_DRIVER to the component ::Device:STM32Cube HAL:COMMON. STM32CubeMX integration: MX_Device_h.ftl: Updated parsing of USART virtual mode. Updated generation of macros: Added handling for '(' and ')' symbols. FrameworkCubeMX_gpdsc.ftl: Added support for Timebase Source TIMx. Board Examples: Terminating app_main thread with osThreadExit() to avoid endless loop. Updated RTX configuration (CMSIS 5.8.0). Updated template based files (MDK-Middleware 7.13.0). Configured MDK projects to use Arm Compiler 6. Changed Assembler option to armclang (Auto Select). Updated all USB Host/Device examples with user templates from MDK-Middleware v7.11.1. FileSystem, USB: Changed variant selection to "MDK-Plus". Updated Graphics examples to use Segger emWin version 5.50. CMSIS Driver: CAN: Corrected SetBitrate function to leave Silent and Loopback mode as they were. Corrected SetMode function to clear Silent and Loopback mode when NORMAL mode is activated. Corrected MessageSend function to only access required data for sending. Corrected abort message send functionality. I2C: Corrected pin configuration: MX_I2Cx_SMBA_GPIO_PuPdOD replaced with MX_I2Cx_yyy_GPIO_PuPdOD. Corrected usage function name USB Device: Corrected transmitted count for non-control IN endpoints. Updated USBD_EndpointConfigure function to check that maximum packet size requested fits into configured FIFO (compile time configured). Removed include of stm32f3xx_hal_pcd.h header.

Version: 1.4.0 (2021-07-22) Keil.STM32G4xx_DFP.1.4.0.pack CMSIS Flash: Added external Flash Algorithm for STM32G474E-EVAL. Added Option Byte Flash Algorithm example. Board Examples: STM32G474E-EVAL: Migrated example to STM32CubeG4 Firmware Package version V1.4.0. Changed default compiler to Arm Compiler 6. Changed Assembler option to armclang (Auto Select). Updated RTX config files to CMSIS 5.8.0.