Agilent Technologies E1300B, E1301B, 75000 SERIES B user manual Cat filename device file

Transmitting Using a CAT On HP-UX systems you can use the cat command to transfer the device driver. Command The appropriate device file must exist. All shell commands are assumed to be

executed from either the /bin/sh or /bin/ksh shell.

1.Start a process that opens the device file to be used. This process should keep the device file open long enough for the transfer to begin. This step is done so that the following command to set the device file configurations will remain in effect for the transfer. A command that will do this is:

(cat < device file > /dev/null; sleep 1000) &

2.Set the required configuration of the device file using the stty command The following command will set the device file to work with the default System Instrument configuration.

stty -opost 9600 ixon -ixoff cs8 -cstopb ignpar < device file

3. Transfer the file to the System instrument with the cat command.

cat filename > device file

Transmitting Using Custom If the COPY command on your computer cannot directly implement Software handshaking, or if you wish to trap errors and abort or otherwise modify the

transmission process, you must use a program to handle the download process.

This procedure assumes that your computer has some means of looking at data being echoed from the System Instrument, and can check for a return character without having to have a character returned. Since the actual driver file bytes sent over the RS-232 interface are not echoed, the lack of ability to do this would put the system into an infinite wait at the first byte that was not echoed.

1.Set up the appropriate handshake mode and data format on your system, and the matching handshake mode in the System Instrument.

2.Transfer the driver file over the RS-232 interface using a program that follows the outline in figure 5-3.

Check Driver Status Make sure that the drivers were properly downloaded by checking their status using the DIAG:DRIV:LIST:RAM? command. This will give you a list of all the drivers currently found in DRAM.

5-14 Downloading Device Drivers