1. Serial Port Adalah
2. Cisco Console Serial Port Settings

Use the BeagleBone Black Serial Port to Connect to a Device

This example shows how to create a connection to a serial device,write data to the device, and read data from the device.

Serial Port Adalah

Caution

Cisco Console Serial Port Settings

Excessive voltage and current can damage the BeagleBone Black hardware. Observe the manufacturer precautions for handling the BeagleBone Black hardware and connecting it to other devices. For more information, see the local copy of the BeagleBone drivers and documentation in the BeagleBone Black Getting Started folder on your host computer, or https://beagleboard.org/Support/Hardware%20Support.

The console port is an async serial port. The console port of the Catalyst 4500/4000. Verify that your terminal emulation software settings are. 2-6 Serial Port Pinout. McDATA Eclipse 2640 SAN Router Installation and Service Manual xi. McDATA Eclipse 2640 SAN Router Installation and Service Manual xiii. The McDATA Sphereon 4400 also provides for management through either a DB-9 RS-232 serial port or through a 10Base-T and 100Base-T. Connecting to the DB-9 RS-232 maintenance port requires a null modem cable and the following connection settings.

• Confgiure zoning settings There are several commands that allow you to navigate through the switch '.' , 'ctrl-U' and 'root'. M-Series (Mcdata) zoning commands are detailed in the below table.
• What type of serial port connection is available on McData switch 6064? Male/Female?.I know it is DB9 but do not have info regarding pin layout. If possible can someone alose pest some commands which I can run at the console port of 6064?. The switch is not on the public Net. I cannot access.
• McDATA ULTRANETTM EDGE STORAGE ROUTER 3000 User Manual. Using The Ficon Global Settings Wizard. Global Settings Wizard McDATA UltraNet Edge 3000 User Guide 8-24 • E-Port (Cascaded ISL) - Select this option if the McDATA UltraNet systems are located between cascaded directors (switches) in a FICON ISL (Inter-Switch Link) configuration (E.
• View and Download McDATA Sphereon 4300 installation and service manual online. Fabric Switch. McDATA Sphereon 4300 Installation And Service Manual. Attachment, Link Reset, No Light, Not Operational, Port Failure, Segmented E_Port, or Testing). • Type - Configured port type. Settings are: — Generic mixed port (GX_Port).

1. Create a connection to the BeagleBone Black hardware.

2. Show the location of the Tx and Rx pins on the GPIO header.

3. Connect the BeagleBone Black hardware to a +3.3V serialdevice.

   BeagleBone Black hardware uses +3.3V. Donot connect BeagleBone Black hardware directly to devices that usehigher voltages.

   • To receive data, connect the P9_26 (UART1_RXD) pinon the BeagleBone Black hardware to the TxD pin on the serial device.

   • To transmit data, connect the P9_24 (UART1_TXD) pinon the BeagleBone Black hardware to the RxD pin on the serial device.

   • Connect a ground pin, GND, on theBeagleBone Black hardware to the GND pin on theserial device.

   • Connect a +3.3V pin on the BeagleBoneBlack hardware to the VCC pin on the serial device.

4. Restart the BeagleBone Black hardware. After the hardwarerestarts, you can use serialdev to exchange datawith serial devices.

5. Before continuing, research the manufacturer product informationto determine which baud rate, data bits, parity, and stop bit settingsthe serial device supports.

6. Use enableSerialPort to reconfigureGPIO pins P9_26 and P9_24 as UART1_RXD and UART1_TXD.

   In '/dev/ttyO1', the 'O' isthe capital letter O, not the number zero.

7. Use serialdev to create a connectionto the serial device and assign the connection to a object.

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8. In this example, the connection uses the default valuesfor baud rate (115200), data bits (8),parity ('none'), and stop bit (1).

   If the serial device requires nondefault values, use a set ofoptional arguments to override those defaults.

   This example overrides the default value of StopBits bysetting it to 2. The other arguments maintain thecorrect sequence of arguments to the left of the rightmost overridingvalue.

9. You can write values to the serial device.

   In this example, you write two values to the serial device.The values override the default precision, uint8,by setting it to uint16.

10. You can also read an array of values from the serial port.

    This example reads a 100-element array of uint8 valuesfrom the serial device.

11. If the serial connection times out during read operations,you can adjust the time out period by assigning a new value to the Timeout property.

When you are finished using the serial interface, restart thehardware to make additional GPIO pins available.

DMX 512 receiver , i need to send data in 512 lines through serial port communication .The problem arises when i need to send data at a baud rate 250000 . Then i used DCB Control block with Getcomm state and Set Comm state . and then i writefile but should i use comPort.Write (Serial comPort = new Serial Port) to send data or WriteFile .This is my below program

I have a VB.Net program of Serial Port communication program of sending data to DMX 512 receiver which i need to convert into c# . But i am confused as they have used MSCOMM1.OUTPUT to send data .

Your help highly appreciated

Thanks in advance

1 Answer

I think I got your point since I'm hacking into this for a while now. I found a nice way to send the data correctly. Keep in mind that not all the devices are capable of sending data at 250kbps, so it could be one of your issues. Find the FTDI-based ones to use.

For my approach, we need to send data in two speeds, and this happens because the reset byte must be a zero with a relatively longer time comparing to the other ones. So you will be constantly changing baud rates.

First, configure your device:

Here I'm starting my serial port instance with all that config you've done too. Don't forget to change the COM port to fit your needs.

Now let's say you have two byte arrays, one for the 'big zero' and another for the actual information:

You'll ask 'why 513 bytes for the buffer?', right? Simply because the first byte is a zero that tells that the actual data is going to be sent. (from 1 to 513, so there are 512 channels)

And finally the main loop: (I obviously recommend for you to do this in a separate thread)

Now I need your help to test it. I'm not confident that it will work flawlessly for longer times without damaging the IC, but I tried it for two hours and nothing harmful happened. Could you test it longer and send me a feedback? I would appreciate it very much. Does anyone have another approach without the need of changing the baud rates?

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