Tuesday, March 15, 2011

Beagle Board

After some struggle, I could able to boot the beagle board (version c4) with Angstrom OS.
Initially, I felt it is very difficult to test the board without the OS.

All we need: 3 wires and a USB mini cable/5v adapter : To test the board with out OS, we just need 3 wires if the correct cables are not available : ATI/everex IDC 10 cable + female to female DB9 null modem cable).
rs232 Pin out structure of beagle board:1. Connect the Rx pin of the beagle board (#2) to the Tx of the computer serial port (#3).
2. Connect the Tx pin of the beagle board (#3) to the Rx pin of the computer serial port (#2).
3. Connect the ground pin of the beagle board to the ground pin of the computer serial port (#5).

Beagle board c4 with IDC 10 cable:
The red color of the IDC 10 cable should be connected near to the pin #1. Also, the cable will have 9 holes (make a hole using a small pin).

Serial cable (Db9 female to female)

Open the hyper terminal, and configure the com#1 (usuall com#1) with 115200 baud rate and flow control: none
By using either the cables or self made configuration cables, connect the board to the serial port of the pc and power it on. Beagle board will boot with the boot loader existing in the NAND memory.

Beagle board with Angstrom OS:

The board I have is Beagle board rev c4. So, I need to make to some changes in the loader.
1. Follow the instructions mentioned in this link: http://beagleboard.org/challenge

2. Copy the necessary files (MLO, u-boot.in) and angstrom files to the SD card. I have used 1 GB SD card. Follow exactly the instructions mentioned here:
1. format instructions: http://code.google.com/p/beagleboard/wiki/LinuxBootDiskFormat
2. section 2 of this : http://code.google.com/p/beagleboard/wiki/HowToGetAngstromRunning

Beagle board with Angstrom OS:

Only thing left is connecting the Beagle board to the video display. I tried connecting to a monitor using HDMI male to DVI female + DVI female to VGA. But didn't work.

Update: Luckily I found dvi male to male converter and dvi monitor. Connected the board to the dvi monitor:

Here is the beagle board c4 with angstrom OS:
Booting phase:


Angstrom OS:
Still keyboard, mouse are not connected. May be USB port needs a powered USB hub. Will update it soon.

2 comments:

Rajeshchintha said...

hi this is rajesh chintha,, what is special about that angstrom os,, can u compare with vxworks,,,
is it an RTOS

awhan said...

great job srinu :) make this article as detailed as possible and may be upload some related video as well