bluetooth uart

Transferred from: http://blog.csdn.net/zeroboundary/article/details/8966586In RS232 the CTS and RTS have a clear meaning, but since Hayes (HAYES) introduced smart Cat (SmartModem) is a bit confusing, but now this meaning for the mainstream, the main chip manufacturers of the UART controller flow control basic use HAYES Modem flow control interpretation.In RS232, the RTS and CTS are used to switch direction in half-duplex mode, this paper does not expl

Code base (only two files were added on the base of HACKRF original code base, one file was changed):Https://github.com/JiaoXianjun/hackrf-UART-1602LCDThe goal is primarily to help people who want to change the debug HACKRF firmware. Because there is no debugging means to change the firmware basic two eyes a dark, groping in the darkness is difficult. The previous days to collect the aircraft firmware has been in the dark good grasp debugging means, s

UART (Universal asynchronous transmitter ER/transmitter)General asynchronous transceiverUART is a chip used to control computers and serial devices. One thing to note is that it provides an interface to the RS-232C data terminal device so that the computer can communicate with the modem or other serial devices that use the RS-232C interface. As part of the interface, UART also provides the following functi

In my last two articles blog post explained about Android Bluetooth awareness as well as APIs related to the introduction of Bluetooth ble search, connection and read.Do not know the children's shoes, please refer to: Learn more about the basics of Android Bluetooth bluetooth-- Learn more about the Android

Android Bluetooth Low Energy (Android Low-power Bluetooth) Android 4.3 (API Level 18) has introduced core functions of Bluetooth Low Energy (BLE, Low-power Bluetooth) and provided relevant APIs through which applications can scan devices and query services, characteristics (attribute feature) of a read/write device ).

BLUETOOTH,EXT43) Detect soft and hard switchCheck to see if the system turns on the soft or hard switch, turn off the Bluetooth module, Rfkill is a sub-interface provided by the Linux kernel for switching control of Wi-Fi, Bluetooth, 3G and 4G devices, and the result is that there is no Bluetooth device at all.sudo rf

uart_parityoddbit 5# Define uart_stopbits 3 // Stop bits Definition# Define uart_05stopbits 0x00# Define uart_1stopbit (0x01 # Define uart_15stopbits (0x02 # Define uart_2stopbits (0x03 // Modes Definition# Define uart_8bitsdata 0x01 // mode data cr [2: 0] 001# Define uart_7bitsdata 0x03 // mode data cr [2: 0] 011# Define uart_9bitsdata 0x04 // mode data cr [2: 0] 100# Define uart_8bitsdatawakeup 0x05 // mode data cr [2: 0] 101# Define uart_8bitsdataparity 0x07 // mode data cr [2: 0] 111 // --

device with two lines (SDA and SCL) , Serial communication between the microcontroller and external devices, or bidirectional data transfer between the master and slave devices. I²c is the OD output, most of the i²c are 2 - wire (clock and data), generally used to transmit control signals. IisIIS(inter-ic sound bus) is a bus standard developed by Philips for audio data transmission between digital audio devices. Most of the i2s are 3 - wire (in addition to clocks and data, there is a selection

connection method:Figure 2 UART Flow Control. Specifically, when the receiver (uart2) deems it acceptable to accept UART data, the RTS is set to a valid bit. The CTS pin of the sender (uart1) receives this signal before sending the data. Generally, when the UART data receiving cache is larger than two bytes free, you can set RTS to receive data effectively. Of c

Objective: to control UART serial port transmitting and receiving data in user space by reading and writing UART device files.Setting the UART baud rate, parity enable, and so on in user space is done through the Termios structure and the Termios library function , which requires the termios.h header file to be included in the application.I. Definition of Termios

Recently too busy, there is no time to write about the ucos-ii transplant, first of all the work is easy to make a mistake in the knowledge points recorded, about the CTS and RTS. In RS232 the CTS and RTS have a clear meaning, but since Hayes (HAYES) introduced smart Cat (SmartModem) is a bit confusing, but now this meaning for the mainstream, the main chip manufacturers of the UART controller flow control basic use HAYES Modem flow control interpreta

AR9344 support two uart, the usual debugging serial port is UART0, the driver is using 8250, today because the project needs to enable UART1, the configuration process needs to pay attention to several points1.9344 Gpio Port is multiplexed, can flexibly configure most of the supported features, need to find two Gpio, configured as UART1_TD and UART1_RD function (if using hardware flow control, need to find two Gpio configured as CTS and RTS)2. The dri

individuals engaged in Bluetooth Product R D.FeaturesL support CSR (bc01, bc02, bc03, bc04) chips.L support online programming and target board debuggingL real single-chip processing, allowing users to write application code on a single chipL selectable on-chip and off-chip CodecL onboard EEPROM for configuring Rom-type BC chip or storing user application dataL provides a wide range of gpio pins (8 bc01, 12 bc02)L select gpio as input and output ran

Bluetooth protocol (2) specifications of the Bluetooth protocolChapter 2 Bluetooth protocol specifications (RF, baseband Link Control, and link management) The Bluetooth protocol is a rule for information exchange between bluetooth devices. Like the Open Systems Interconnec

1 Preface This article simply introduces the Bluetooth protocol stack, including the HCI layer, ACL link, L2CAP layer, SDP service and several common profiles that let beginners of the Bluetooth protocol stackAn overall framework for the entire Bluetooth protocol stack is understood. 2 HCI Layer Control of 2.1 HCI command and Response Because different HCI com

Original: Win10 IoT C # development 4-uart serial CommunicationWindows IoT Core is one of Microsoft's key products for the internet of things, enabling both the development of UI and user interaction, as well as the ability to control interfaces such as Gpio, making the original embedded cumbersome development simple. The remote Debug function allows for breakpoint tracing and debugging. The C # language itself also has a good user base, believing tha

Experiences in using the lpc2000 UART serial portIn view of some problems of zgpswh in the use of serial ports, I summarized my understanding in the previous stage, which is relatively one-sided. If not, please correct them. 1. The serial port receiving module of the lpc2000 series chip includes the receiving buffer register and shift register. After the received data enters the shift register, the data is transferred to the buffer register in paralle

Knowledge about serial ports Three independent serial ports, each of which can use DMA And interrupt operation. Each contains two 64-byte FIFO, one connection and one sending. The non-FIFO mode is equivalent to a register buffer mode in the FIFO mode. Each UART has seven statuses: overrun error, verification error, frame error, breakpoint, and receiving buffer. The sending buffer is empty and the sending shift register is empty. When receiving da

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, many monitors on the market use DVI interfaces

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. For the original project, click the open li