serial port sniffer

Environment:Windows7 64B,JDK64B,MYECLIPSE8.5,RXTX Development Package, Stc,keil, Geshe Beacon, 51 single-chip microcomputer, RS232USB to serial line.Lower machine C code # include #include #define Inbuf_len 7//Data lengthunsigned char Inbuf1[inbuf_len];unsigned char checksum,count3,count=0;Bit read_flag=0;unsigned char com[]= "hello\n";void Init_serialcomm (void){tmod=0x20;//setting timer 1 for Mode 2th1=0xfd;//set initial value setting baud rateTL1=0

The 16c2550 serial port chip can be used to expand two serial ports. Its operation method and register usage are exactly the same as 8250, so we can use the classic 8250 driver in Linux to drive st16c2550. 8250 the driver remains unchanged. You need to add the 16c2550 initialization code. In the initialization code, you need to set the chip selection and IRQ pin

Problem Description:The program has been working normally, today the computer re-made the system, and then began to appear this problem: "The given port name does not start with com/com or resolves to a valid serial port." Serial debugging assistant is also not used. Serial

1, first explain the 74ls164 shift chip:74hc164, 74hct164 is a 8-bit edge-triggered shift register, serial input data, and then output in parallel.Data is entered serially through one of two inputs (DSA or DSB), and either input can be used as a high-level enable to control data input from another input. Two inputs either connected together, or the unused inputs terminated high, must not be suspended.Each time the clock (CP) is changed from low to hig

Obtain the COM port number mapped to the serial port Background: Recently, due to project requirements, you need to operate the SMS cat. After the SMS cat is inserted into the computer, it will map the COM port based on the current PC status. Here, you need to dynamically obtain the COM

function in C performs further initialization, such as the NIC, and then enters the main_loop loop. The relocated U-boot memory layout is as follows: Now execute make all to compile the u-boot.bin and u-boot-spl.bin, but compilation error: In clock. the s5pv210_get_arm-clk of C uses the macro samsung_get_base_clock and the related registers, because our clock code was previously implemented using assembly, so we have the arch-s5pc1xx in arch/ARM/include/ASM/clock. h to define these registers:

From https://www.ibm.com/developerworks/cn/linux/l-serials/ Introduction to serial ports The serial port is a common interface for computers. It has a wide range of applications, such as a few connection lines and simple communication. Commonly used serial port is RS-232-C

Summary: Taking the serial port driver of the b0x Chip Based on the ARM7TDMI kernel as an example, this paper analyzes the hierarchy and mechanism of the VxWorks serial port driver, and studies the working principle of the TTY driver and the underlying SCC driver. Combined with the

Http://www.cnblogs.com/lwngreat/p/4098374.htmlSoftware IntroductionAn Indian compiled by the VC serial port Class (also a VC serial control ), he also cooperated with this class to write a VC serial communication of some basic knowledge, such as how to open the serial

Original address: http://www.cnblogs.com/feisky/archive/2009/10/23/1588771.html Linux operating system from the beginning of the serial port provides a good support, this article on Linux under the serial port communication programming simple introduction. Introduction of

Recently, the department is doing high-speed camera, through the image capture card and its own high-speed camera link, so as to capture and collect images. Image capture card and high-speed camera is through the Cameralink connection, which also contains the camera and image capture card between the serial port hardware excuse, in the teacher's request, the realization of two

★Software Used ● Keil Software Development ● Virtual serial port Software ● Serial port debugging Assistant★Software Introduction 1. virtual serial port Software For a laptop, virtual serial