replace RPI with model B+.  4 USB ports + 4 port switch

The RPI system has been replaced by a model B+ which has 4 internal USB ports

Connects to: 

    AIDA Power Control  USB1

    Serial port to FEE for console output     USB0

    CAEN N1419 HV power supply   USB2

All 3 connections use a USB => RS232 convert chip. The hardware cannot simply tell these apart. The USB ports assigned should however remain constant as long as the connections remain the same.

Power up RPI system.

At end of boot check the last couple of lines on the console for the assigned IP address.  Should be 10.1.1.114.

login using ID npg     Password is the same as for the data acq system.

then type startx

When the graphical console appears.

Firstly click on the icon TclHttpd Server to start the web server.

Start the web browser (Icon immediately to the right of the MENU icon at extreme left of the top row).

Connect to  http://localhost:8015/AIDA/Rly16/Rly16.tml         (the browser will have this in its recently used list)

The software now checks the potential USB devices for one which responds correctly to a request for the firmware in the AIDA Power Control box.

The GUI shows the port in use. Currently it is /dev/ttyUSB1

Even if the hardware changes the software should find the correct port to use but this suggests the other uses will also have changed   (you may need to use dmesg to locate which ports are assigned)

You can use the icon PuTTY Client to start the putty program.

connect and open for USB0 to monitor the FEE64 console

connect and open for USB2 to control the CAEN N1419

You can connect from a remote terminal using  ssh -X -l npg nnrpi1   

 However to start putty from the command line you will need

    sudo chmod 660 /dev/ttyUSB0;  putty                (for the FEE console)

or

   sudo chmod 660 /dev/ttyUSB2; putty                 (for the N1419 control)