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BOOT from UART2 in OMAP l137 EVM

Arye Lerner
Expert 1130 points
Other Parts Discussed in Thread: OMAP-L137

Hello,

I am trying to upload a simple program I wrote for OMAP L137 into device flash on OMAP-L137 Starter Kit. I follow the sequence described in:

http://wiki.davincidsp.com/index.php/Serial_Boot_and_Flash_Loading_Utility_for_OMAP-L137

The problem occures, when I set the BOOT switches and checking communication with Hypertherminal:

Instead of  "BOOTME" prompt I get next sequnce:

U-Boot 1.3.3 (Apr 23 2009 - 17:32:00)

I2C:   ready
DRAM:  64 MB
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
ARM Clock : 300000000 Hz
More than one PHY detected.
Hit any key to stop autoboot:  0
U-Boot >

and a baudrate is 115200 instead of 230400 as described in the document.

Please help.

Thank You

Arye Lerner

  • 0
    TI__Mastermind 24340 points

    About the warning, just saveenv and the warning should go away.

    http://www.denx.de/wiki/DULG/WarningBadCRCUsingDefaultEnvironment

    It seems that it is not booting from UART, but from SPI flash. Double check your switches.

  • 0 in reply to Mariana
    TI__Mastermind 24340 points

    Also, check your board revision (I updated the page for earlier revisions of the board) and UART speed.

  • 0 in reply to Mariana
    Expert 1130 points

    Hello Mariana,

    Thank You for your help.

    I switched the board from rev B to E, and it worked (It could be something wrong with this specific board in rev B, since I tried the switch combination You have mentioned in wiki and it didnt worked).

    But never mind, I have a board with BOOTME prompt.

    Now I try to program the board:

    I tried to use UartHost program that comes with AISgen to load the bin file, but I cannot change the baud rate there (the default is 115200), so I tried to use the sfh_omap-l137.exe with an options to change the baud rate and/or com number, but It keeps returning a "parameter incorrect" message or sometimes return help list. It is not clear to me a format of the command that I have to use, I tried all possible brackets, but without a success. Can You give me an example of correct command please?

    For example I try to change baud rate and com port number using these commands with no success:

    >spi_omap-l137.exe -p "COM3"

    >spi_omap-l137.exe -baud 115200

    What is the correct syntax?

    Thank You Very Much

    Arye Lerner

  • 0 in reply to Arye Lerner
    Expert 1130 points

    OK [:$],

    I suppose to use all parameters in one command line.

     

    Thank You.