Maxim DS33Z41 Uživatelský manuál stáhnout pdf (Strana 10)

DS33Z41DK

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BASIC OPERATION

Powering Up the Design Kit

• Attach DS21458 resource card to main board.

• Connect PCB 3.3V and GND banana plugs to power supply. At power-up the system should draw

approximately 1A.

• Set switches for software mode as described in

Table 2 (short description follows).

• Top left bank: All low, except for MODEC0, which is high.

• Top right bank: A2, A1, A0 in mid position, SCANTRI low

• Bottom Bank: All high (AFCS, FULLDS, H1OS)

General

• Upon power-up, the processor FPGA Status LEDs (DS43 green) will be lit. Interrupt LEDs (DS44 red) will not

be lit. DS33Z11 Queue overflow LEDs (DS39 red) will not be lit. PHY LINK LED (DS06 green) should be lit if

the Ethernet is connected.

Following are several basic system initializations. These initializations assume that there are two boards present

(DS33Z41 and / or DS33R41). A note is provided below to assist with using a system that only contains one board.

Basic DS33Z41 Initialization (Used for All Quick Setups)

This section covers four basic methods for configuring the DS33Z41. Any one of these initializations can be used

with the following Quick Setup examples:

1. Upon power-up, the on-board device driver provides a basic configuration for the DS33Z41 and attached

serial cards. This enables traffic to pass from the Ethernet port to the serial port. Consult the device driver

documentation for further details. Device driver behavior is dependant upon jumper settings, which are

detailed in Table 2.

2. Launch ChipView.exe and select Register View. When prompted for a definition file, pick the file named

DS33Z41.def. Following this load the definition file named DS21458RC_FPGA.def

3. Hardware Mode is not available with this DK

4. EEPROM mode is not available with this DK.

5. Ethernet Traffic generation and analysis:

a. Using a patch cable, connect the Ethernet connector to an ordinary PC, or network test equipment.

This should cause the link LED to turn on.

b. Although ping is mentioned it is *not* recommended. The ping command goes through the

computers TCPIP stack, and will sometimes will not be sent out the PCs network connector (i.e. if

the PCs ARP cache is out of date). Additionally ping requires two PCs, as a PC can not ping itself

(a local ping gets sent to ‘localhost’ instead of out the connector). With that said – ping is still a

valuable test once the prototyping stage is complete.

c. Generation and capture of arbitrary (raw) packets can be accomplished using CommView. A time-

limited demo is available at the website

www.tamos.com/products/commview.

d. Ethereal is an excellent (and free) packet capture utility. Download is available at

www.ethereal.com.

e. Adding additional Ethernet ports to a PC is rather simple when a USB-to-Ethernet adapter is used.

This allows for end-to-end testing using a single PC. When using two adapters the PC will have a

different IP address for each adapter. Test equipment will allow selection of either adapter.

Operating system based network traffic will be sent out the default adapter, usually this is the

adapter that has recently had connection to a real network.

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