rs232 uart driver

the DB9 interfaceSummary: in a sense, it can be said that the line is only the current, rs232/rs485 specify the current on what kind of line flow and flow of the style; at the UART, the current is interpreted and assembled into data and becomes a form of direct read and write by the CPU.Note 1 "Here is the example is the small-end transmission mode, is the basic serial port transfer mode, but the big-endia

What are the differences between VGA, DVI, RS232, UART, SCSI, SATA, and other interfaces?Both VGA and DVI are video transmission lines. The former is a traditional analog transmission, and the latter has many types, which only transmits numbers or analog or digital models. In short, the latter's video signal transmission quality is higher than the former, and the transmission speed is faster. At present, ma

Both VGA and DVI are video transmission lines. The former is the traditional analog transmission, the latter species is more, there is only the transmission of digital or analog or digital mode is transmitted, in short, the latter video signal transmission quality is higher than the former, and transmission speed faster. Many displays on the market now use the DVI interface (including HDMI, HDTV, and DisplayPort, etc.)Interfaces are very easy to differentiate:

MTK Android Driver: UART, mtkandroidReprinted please indicate the source: http://blog.csdn.net/cbk861110/article/details/425834691. uart port configuration: Set uart log and meta configuration ports to other ports. The empty uart1 is used for communication debugging. Note: Only the uart1 port on the hardware board can

Ubuntu comes with most USB to RS232 drives, all we have to do is find the device name that corresponds to the device. Enter LSUSB under the terminal to list the USB devices identified by the system $ LsusbBus 008 Device 001:id 1d6b:0002 Linux Foundation 2.0 root HubBus 003 Device 002:id 064e:a103 suyin Corp.Bus 003 Device 001:id 1d6b:0002 Linux Foundation 2.0 root HubBus 007 Device 001:id 1d6b:0001 Linux Foundation 1.1 root HubBus 006 Device 001:id 1

FIFO, no automatic flow control AFC, set the following:UFCON0 = 0x00; Do not use FIFOUMCON0 = 0x00; Do not use flow controlUBRDIV0 = 26; Baud rate is 115200,pclk=50mhzUBRDIV0 = 53; Baud rate is 57600,pclk=50mhzUBRDIV0 = 12; Baud rate is 57600,pclk=12mhzUTXH0 and URXH0 are data sending and receiving registers, sending data by polling method to determine the status of the sending State register, when the data can be sent, perform UTXH0 Register write operation, receive data, polling to detect the

Arm-linux s5pv210 UART Driver (3)----serial core layer, key structure, interface relationshipAlthough a specific UART device driver can be designed with a TTY-driven design, which defines Tty_driver and implements Tty_operations member functions, Linux is already in the file Serial_ The universal TTY drive layer of the

Although the driver of a specific UART device can completely follow 14.2 ~ The 14.5 method is designed to define tty_driver and implement the member functions. However, Linux has implemented the universal tty driver layer (called the serial port core layer) of the UART device in the file serial_core.c ), in this way, t

Note that it is not as easy as writing a pen. To make it easier to view code and reuse code again, we will post the S3C2440 UART driver code here. Use the friendly mini2440 Development Board and the development environment is realview MDK 4.22. In this Code, the initialization of gpio is completed in S3C2440. s and configured in the HTML method provided by Keil. The source code structure is simple and clear