Revision History

 Reasons For Using Development

The Development Kit is especially useful for customers who are developing their firmware. Below are the reasons how we have made it more user-friendly for you.

Block Diagram

Key Features

General Information

 Information On Power

*     Depend on Order Configuration

** JTAG Programmer available to reprogram the flash in case of loader corruption.

*** Serial Converter available to change the TTL signals on board to RS232 signals for debugging

 Configuration And Installation

GPIO Bit Mapping

Interface Connectors

The board interface connector pin assignments and signal descriptions are included in the following sections. The connectors are listed in the section below and the connector locations are shown in the following diagrams.

 Serial Port Header

The Serial Port (J23) Header signaling is shown in the following table.

No'te:

Our Serial port Implementation requires an external high-impedance serial port not usually available with the serial ports of the notebooks/ computers. You will need a Serial Converter available in the market. For our customers’ convenience, it is bundled together with the board Development Kit

 Serial Console Settings

The serial console settings used together with the serial port is given below.

This serial port uses TTL signals, and therefore you have to use serial converter using MAX-211 IC (or other IC in the market that convert TTL signals to RS232 signals) in order to use it with the PC.

Precaution when using Serial Converter

Please attach the serial converter first on the board serial header, before attaching the power supply. This is to ensure that there is no surge of power to the serial converter, and prevent any damage the chipset on the serial converter.

Serial Converter Pin Layouts

Cables on the serial converters are provided. You can use the 6 Pin (Fixed) to 4 Pin (Fixed) provided. The pin layouts of the serial converters for use with the board are as follows:

Arrangement of Cables on Serial Converter to the board

Arrangement of Cables on the board itself

 JTAG Port Header

The primary purpose of the board JTAG Port Header is to facilitate program download into Flash memory.

Note: Normally, it has a JTAG Programmer compatible with the board. It is bundled with the board Development Kit. This JTAG programmer is able to download file onto the Flash, and thus recover a corrupted loader.

Ethernet Connectors

The board contains 1 X 10/100/1000 Base-T Ethernet Channels. The Ethernet Channels are available through standard 8-pin RJ45 connectors. Ethernet Connectors(J19/J20) signaling is shown below.

 JTAG Process

Minimum Requirement

1. OCD Commander 5.4

2. tst file (same for all WALLYS device)

3. bin file

4. JTAG cable Steps

5. Install the OCD Commander to your PC

6. Plug the JTAG cable to the JTAG port of the device
7. Run OCD Commander Program

Set "Target Processor" for the particular device Click "OK"

• If there is this error message “Error Response from INITIALIZE... ”, please check the JTAG cable connection. Close the OCD Commander

Program and go back to Step 3.

 5.Click on the “Macro” and choose a specific .mac

 6.Let it run until u see “go

     7.Open command prompt

     8.tftp tst

     9.tftp uboot.bin (please observe the DIAG LED is off)

     10.If either step 9 or step 10 fail, please start from step

     11.Power off the device and unplug JTAG cabl

     12.Power on the device and tftp the firmware into th

     13.Reboot when

Build and Install Process

For OpenWRT firmware on uboot Loader

Minimun Requirement

1:OpenWRT will only be supported on DR344-NAS27 with 8MB NOR flash and above. 2:Please ensure that the Ethernet connection is able to ping address = 192.168.168.1

Compiling OpenWRT on DR344-NAS27+ ath9k with patches from Wallys.

• Recommended Linux host: CentOS 6.x, Debian 6.x
• During the first build of openwrt, about 300MB of various source files
• will be downloaded from the internet.The downloaded files will be put in openwrt/dl.

For first build:

$ ftpboot 0x80060000 openwrt-ar71xx-generic-db120-kernel.bin

$ erase 0x9f680000 +$filesize; cp.b $fileaddr 0x9f680000 $filesize

$ tftpboot 0x80060000 openwrt-ar71xx-generic-db120-rootfs-squashfs.bin

$ erase 0x9f050000 +0x630000; cp.b $fileaddr 0x9f050000 $filesize

$ reset

Upgrade Wallys Firmware with Serial Console

Power on the device, press Esc button from Keyboard. It would be directed to the u-boot loader mode.

• To flash the firmware type the following the command
• # updatef
• Open a windows command prompt and type the following command.
• # tftp –i 192.168.168.1 put <firmware.img>
• Wait to complete the firmware loading. Reboot the device after update successfully.

 Appendix

Board Features

TOP Side