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> ## 2. Getting Started

> This chapter shows how to make the necessary hardware connections and how to configure the network parameters for the RabbitLink.

> ### 2.1 RabbitLink Physical Connections

> 1. Attach the RabbitLink board to the plastic enclosure base.

>    Position the RabbitLink board over the plastic enclosure base as shown below in Figure 2.1.0-1. Attach the RabbitLink board to the base at the top left and bottom right positions using the two 4-40 × ¼ screws supplied.

> Figure 2.1.0-1 Attach RabbitLink Board to Plastic Enclosure Base

> The plastic enclosure base facilitates handling the RabbitLink during development. It is available in the RabbitLink Tool Kit.

> NOTE | Appendix B, "Plastic Enclosure," provides additional information and specifications for the plastic enclosure.

> 1. Connect the programming cable

>    You must connect the programming cable to configure network parameters from your PC. Connect the 10-pin DIAG connector of the programming cable to header J8, which is labeled PROG IN, on the RabbitLink. Ensure that the colored edge lines up with pin 1 as shown. Connect the other end of the programming cable to a COM port on your PC.

> Figure 2.1.0-2 Programming Cable Connections

> 1. Connect the power supply.

>    Two options are available for powering the RabbitLink. Option 1 is an AC adapter to power supply jack J4; option 2 is a screw terminal header at J5. Option 1 is most convenient in a desktop environment, and Option 2 can be used to connect the RabbitLink to an existing power supply in a field installation. The LED labeled USER comes on for several seconds after power is applied.

>    #### Option 1 - Via AC Adapter

>    Plug the DC end of the power supply into jack J4, which is labeled POWER IN, as shown in Figure 2.1.0-3.

>    #### Option 2 - Via Screw Terminal Header J5

> | Do not do this hookup if you have already connected the AC adapter (Option 1).

> Connect the `+` lead (red) to +RAW on header J5 and connect the `-` lead (black) to GND as shown in Figure 2.1.0-3.
> Figure 2.1.0-3 Alternative Power Supply Connections

> NOTE | The RabbitLink (2110) has reverse polarity protection through header J5.

> 1. Apply power.

>    Once the RabbitLink is powered up and connected to your PC, you are ready to configure the network parameters.

> ### 2.2 Configuring RabbitLink Network Parameters from your PC

> There are two ways to set the basic network parameters for the RabbitLink: dynamically (DHCP) or statically (RabbitLink serial console) . The basic network parameters are:

> - the IP address of the RabbitLink
> - the IP address of the gateway
> - the netmask

> #### 2.2.1 Dynamically Assigned Network Parameters

> The easiest way to set network parameters is to use a DHCP server. This method is available starting with RabbitLink firmware version 2.00. It removes the need to connect to a PC to configure the RabbitLink, which may be desirable on PCs without a COM port. The RabbitLink tries to use the services of a DHCP server by default.

> If there is not a DHCP server on the network, or it is desired to set the parameters by hand, the second method may be used.

> #### 2.2.2 Statically Assigned Network Parameters

> This method is required for setting anything beyond the basic network parameters. A terminal emulator is used to communicate with the RabbitLink serial console.

> 1. Open a terminal emulator such as Tera Term or Windows Hypertermal on your PC. Configure the terminal emulator as follows.

> Parameter | Setting
> COM | port (COM1 or COM2) to which programming cable is connected
> Baud Rate | 57,600 bps
> Data Bits | 8
> Parity | None
> Stop Bits | 1
> Flow Control | None

> TIP | If no characters appear when you type, press return, then type `echo on` to turn on the echoing of characters.

> 1. Cycle power on the RabbitLink. The RabbitLink boots up whenever the power cycles, and then displays the message,

>        RabbitLink Serial Console Version X.XX

>    This may take several seconds, so be patient. The RabbitLink serial console will respond OK after each command, or,

>        "ERROR <errnum>"

>    if something went wrong.

> 2. Configure the RabbitLink network parameters. This is done using the serial console commands. Typing the command "show" results in a listing of the current network addresses.

>    Please refer to Appendix E, "Serial Console Commands," for a description of all the commands. If a DHCP server was not used , the following serial console commands are required:

>        set ip x.x.x.x          // factory default is 10.10.1.100
>        set gateway x.x.x.x     // factory default is 10.10.1.1
>        set netmask x.x.x.x     // factory default is 255.255.255.0

>    An alternative for setting the required network addresses is to change the default values in the RabbitLink firmware, `download.c`.

> ### 2.3 Target System Connections to the RabbitLink

> After network addresses have been set, put aside the programming cable and connect the program download cable as shown in Figure 2.3.0-1. One end of the program download cable connects to the programming header of the Rabbit-based target system. The other end connects to the PROG OUT header of the RabbitLink board.

> Figure 2.3.0-1 Connect Rabbit-Based Target System to RabbitLink

> ### 2.4 Ethernet Connections

> Before proceeding, you will need to have either two straight-through Ethernet cables and an Ethernet hub or one Ethernet crossover cable. The Ethernet cables and Ethernet hub are available from Rabbit Semiconductor or Z-World in a TCP/IP tool kit. More information is available at

>     www.rabbitsemiconductor.com or at www.zworld.com

> Your PC must have an RJ-45 Ethernet jack. You can identify the RJ-45 Ethernet jack by looking for an 8-connector (as opposed to a 6-connector RJ-11 phone jack) jack labeled ETHERNET or `<···>` that will probably have an LED or two on it. If your PC does not have Ethernet access, you will need to install a 10BaseT Ethernet card.

> Connect your PC and the RabbitLink board to an Ethernet hub as shown in Figure 2.4.0-1. The Ethernet hub may also be connected to your network.

> Figure 2.4.0-1 Overview of physical connections.

> Alternatively, you may use the crossover Ethernet cable to connect the RabbitLink directly to a PC RJ-45 Ethernet jack. This is useful when using RabbitLink as a high speed local programming interface.

> ### 2.5 Ready to Go

> The green LED labeled LINK should light up once all the connections have been made correctly.

> Dynamic C or the Rabbit Field Utility may now be used to download a program to the Rabbit-based target system from your PC. The red LED labeled USER on the RabbitLink blinks while a download or a debug session is in progress.

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Z-World, Inc. www.zworld.com Phone: 1.530.757.3737 Fax: 1.530.757.3792 | Rabbit Semiconductor www.rabbitsemiconductor.com Phone: 1.530.757.8400 Fax: 1.530.757.8402