If register should be written or read.This value is passed to the calback functions which support either reading or writing register values. Writing means that the application registers should be updated and reading means that the modbus protocol stack needs to know the current register values.See also: eMBRegHoldingCB(), eMBRegCoilsCB(), eMBRegDiscreteCB() and eMBReglnputCB().Enumeration values: MB_REG_READ Read register values and pass to protocol stack.MB_REG_WRITE Update register values.Note: Note all ports implement this function.A port which wants to get an callback must define the macro MB_PORT_HAS_CLOSE to 1.Returns: If the resources where released it return eMBErrorCode:: MB_ENOERR. If the protocol stack is not in the disabled state it returns eMBErrorCode:: MB_EILLSTATE.Examples: LINUX/demo.c, MCF5235TCP/demo.c, STR71XTCP/demo.c, WIN32/demo. cpp, and WIN32TCP/demo. cpp.his function disables processing of Modbus frames.Returns: If the protocol stack has been disabled
标签： FreeModbus
上传时间： 2022-05-31
上传用户：
In this presentation, we will look at what the Serial Peripheral Interface, otherwise known as the SPI, is. and how it is used to communicate data to and from the PICmicro microcontroller.SPl is frequently used when few 1/O lines are available, but communication between two or more devices must be fast and easy to implement.In this presentation, we will discuss the following topics: We will first cover an Overview of SPI This section of the tutorial will introduce you to SPI and its concepts.Next, we will examine the use of SPI on the PICmicro MCU.The details of how SPI is implemented on a PICmicro device will be examined.Then, a Code Walkthrough will be given.The walkthough will explore code for both an SPI Master and SPI Slave. The example will have the Master generate data for sending to the slave.Finally, there will be a few resources given at the end of the presentation. These resources will allow you to explore in more detail the SPI interface
标签： spi协议
上传时间： 2022-06-20
上传用户：
Note: Before commissioning the value of the connected mains voltage must be set in the servo controller(factory setting=3×400 V AC). More detailed information see chapter 4"Commissioning".通讯接口所有的Servo-One系列均有USB及TCP/IP通讯接口，可通过LT-I公司的Drive-Manager5软件进行通讯，进行相关参数的读写和现场调试，详情请参考章节.…软件调试。Servo-One Junior:X9（USB1.1）TCP/IP（开发中）Servo-One:X2（USB1.1）X3（TCP/IP）Note: The faults can be acknowledged in accordance with their programmed reaction(ER) or reset via a 24 V-reset(X9/10)(ER.).Attention: Faults marked with a dot can only be reset, after the cause of the fault has been eliminated.显示为当前版本V5.4.0同时，相应的USB接口驱动也在对应的安装文件夹内，例：C:\Program FileLTI DRiVES GmbHILTi DriveManager 5.4.0drivers
标签： servoone
上传时间： 2022-06-24
上传用户：
This documentation is the original work and copyrighted property of X-Powers. Reproduction in whole orin part must obtain the written approval of X-Powers and give clear acknowledgement to the copyrightowner.
标签： AC101
上传时间： 2022-06-28
上传用户：xsr1983
MotioninterfaceTM is becoming a "must-have"function being adopted by smartphone and tablet manufacturers due to the enormous value it adds to the end user experience. In smartphones, it finds use in applications such as gesture commands for applications and phone control, enhanced gaming, augmented reality, panoramic photo capture and viewing, and pedestrian and vehicle navigation. With its ability to precisely and accurately track user motions, MotionTracking technology can convert handsets and tablets into powerful 3D intelligent devices that can be used in applications ranging from health and fitness monitoring to location-based services. Key requirements for Motionlnterface enabled devices are small package size, low power consumption, high accuracy and repeatability, high shock tolerance, and application specific performance programmability-all at a low consumer price point.
标签： mpu6050
上传时间： 2022-07-06
上传用户：zhaiyawei
VIP专区-嵌入式/单片机编程源码精选合集系列（92）资源包含以下内容：1. 这里是:"EDA技术基础_第5章".谢谢大家的支持!.2. 这里接下来是:"EDA技术基础_第6章.PPT".希望大家支持!.3. Protel99电子元件封装.4. bios源码.5. 一本关于我国嵌入式考试的很好的参考资料,值得下载.6. tms2812的原理图.7. smartarm2200开发板上做的一个程序.8. wsd:tiger studio ,1_2 .protel 99 se多层电路板设计配套光盘资料.9. wsd:tiger studio ,1_3 .protel 99 se多层电路板设计配套光盘资料.10. wsd:tiger studio 1_4 ,which is verygood and useful.protel 99 se多层电路板设计配套光盘资料.11. wsd:tiger studio 1_5 ,which is very good and useful.protel 99 se多层电路板设计配套光盘资料.12. wsd:tiger studio 1_6,which is very good and useful.protel 99 se多层电路板设计配套光盘资料.13. wsd:tiger studio 1_7,which is very good and useful.protel 99 se多层电路板设计配套光盘资料.14. wsd:tiger studio 1_7 ,which is very good and useful.protel 99 se多层电路板设计配套光盘资料.15. wsd:tiger studio 1_9,which is very good and useful.protel 99 se多层电路板设计配套光盘资料.16. 步进伺服电机运动控制,k880伺服电机运动控制vb测试程序.17. ucosii下的arm9LCD程序.18. 用 Atmega8 实现D触发锁存器的功能.19. 学习ARM嵌入式及相关操作系统的介绍,是清华大学硕士教材.对嵌入式有更深一层的了解.20. ThreadX Datasheet Version 4.0.21. CH375 是南京沁恒公司开发的一个USB总线的通用接口芯片.22. ML Estimation of 2 PFM signals using EM and AM.23. i2c 在linux下的驱动设计.24. 这些程序是在ccs调试通过的.25. 该文件在ccs编译器下调试通过的2812 DSP pwm实验程序。.26. 该文件在ccs编译器下调试通过的2812 DSP EV事件管理实验程序。.27. 该文件在ccs编译器下调试通过的2812 DSP mcsbp实验程序。.28. 该文件在ccs编译器下调试通过的2812 DSP 外EXRAM实验程序。.29. the ndis driver ,you must install the inf file.30. 仅供参考的protel电路图.31. ERTFS是一个优秀的文件系统.32. 此源码为vb写的底屋开发。通过bios取得相关信息。希望有所收获.33. zigbee的协议标准.34. 达盛科技公司S3C2410基础实验源码.35. MD204LV4文本显示器电路原理图,已广泛用于工业设备上..36. 这是一个关于基于CPLD的多路SPWM控制器的研制的论文.37. Altera FPGA与CPLD的外部处理器连接方式及编程。.38. 北京航空航天大学2006年嵌入式系统课件及试验．适合嵌入式初级学者！.39. altera 的i2c ip核.40. altera 的vga ip核.
标签： 减
上传时间： 2013-04-15
上传用户：eeworm
