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DSA3200 Operating System Upload

This section describes the method for upgrading and uploading a new operating system to the DSA3200. Two

programs are used in the DSA3200, the boot-loader and the operating system/DSA3200 application, referred

to as the operating system.

The purpose of the boot-loader is to start the operating system from local flash or from a location on the

network, such as a disk file on a host PC and to allow setting of certain key operating system parameters. The

boot-loader can only be installed with special flash programming equipment. However, the boot-loader, under

most normal upgrade conditions, would not need to be changed.

When upgrading a new DSA3200 operating system, the following procedure should be followed:

1. Install an FTP server, on your host PC. Scanivalve Corp recommends the War Daemon FTP

Server. The installation is described in the FTP Server Installation/Configuration Procedure.

2. Use the boot parameter modification procedure to modify the boot parameters:

A Change the file name parameter to the location of the vxWorks.st file.

B. Insure that the user parameter is set to DSA_HS. It must match the user in the FTP

server.

C. Set the password to scanivalve. It must match the password in the FTP server.

3. Connect to the DSA3200 using TelNet

4. Issue the "UPLOAD S <full file path>" command from TelNet. Only back slashes can be used

in the path name and the S must be upper case.

5. Monitor the operation with the STATUS command. W hen it returns READY, the upload is

complete.

6. W hen the DSA3200 returns READY, The new operating system is installed in flash memory,

but not in RAM.

7. The new operating system will be effective when power is recycled.

DSA3200 Buffer Description

The DSA3200 buffer is a software buffer. It is set up as a FIFO. It is factory set to hold 10000 averaged

frames of data. Each frame uses 292 bytes of memory.

The software buffer is always in use regardless of the setting of QPKTS variable. The effect of QPKTS occurs

when the buffer is filled. If QPKTS is set to 1, the scan will stop when the buffer is full. If QPKTS is set to 0,

subsequent frames will be discarded when the buffer is full.

The buffer is the liaison between the scan task and the scan output task. The scan output task has a higher

priority than the scan task. Under initial conditions, when the buffer is empty, the scan task places one frame

of data in the buffer. It then signals the scan output task to read the buffer until it is empty. However, when

multiple frames of data are in the buffer, the output task continues until the buffer is empty. Multiple frames

of data will accumulate if the scan output task is blocked by the network while outputting data.

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D-Link DSA-3200 Manual do Utilizador Página 41