Booting from NAND

Dr. Yehuda Singer

Dear All,

1. After programming the evm6678L using the command: $DSS_SCRIPT_DIR/dss.sh program_evm.js tmdxevm6678le "nand,eeprom51" we get that the board has been successfully programmed in the NAND area. After that, we want to boot the LInux in the EVM.

2. Looking in linux-c6x-2.0.0.63-users-guide, to boot the EVM gives the following: DIP Switch Settings to Boot from NAND

For EVM6678L and EVM6670L, to boot Linux from NAND flash, make sure the Dip switches on the EVM are set
as follows:-
EVM667xL NAND BOOT
Switch Pin 1 Pin 2 Pin 3 Pin 4
SW3 E Off On Off
SW4 On Off On On
SW5 On On On Off
SW6 On On On On

Following these instructions, I turned off the EVM, changed the settingsof the switches and turned on the EVM.

It seems that nothing happens.

3. The minicom package: The minicom package does not identify the RS-232 interface.

Best regards,

Yehuda

over 11 years ago

0 Rex Chang over 11 years ago

TI__Guru 50170 points

Hi, Yehuda,

Please verify that minicom works first. The other option is try teraterm on a window machine if you happen to have one so you can verify if NAND boot works.

Rex

0 Dr. Yehuda Singer over 11 years ago in reply to Rex Chang

Expert 1240 points

Dear Rex

Thanks.

We work in Linux. I performed minicom -s, but it remains in offline.

Thanks,

Yehuda

0 Rex Chang over 11 years ago in reply to Dr. Yehuda Singer

TI__Guru 50170 points

Hi, Yehuda,

Let me know when you have the minicom issue resolved and we can work on TI product issues.

Thanks!

Rex

0 Dr. Yehuda Singer over 11 years ago in reply to Rex Chang

Expert 1240 points

Dear Rex

I have: 115200,8N1, NOR Minicom 2.3 VT102 and it is in Offline mode.

Yehuda

0 Rex Chang over 11 years ago in reply to Dr. Yehuda Singer

TI__Guru 50170 points

Hi, Yehuda,

Here is a link from google search for minicom offline. Hope you can find answer to your minicom issue.

http://www.linuxquestions.org/questions/linux-hardware-18/minicom-s-works-but-it-always-show-offline-then-cannot-communicate-with-others-579461/

Rex

0 Dr. Yehuda Singer over 11 years ago in reply to Rex Chang

Expert 1240 points

Dear Rex

Are the switches positioned OK?

Thanks.

yehuda

0 Rex Chang over 11 years ago in reply to Dr. Yehuda Singer

TI__Guru 50170 points

Hi, Yehuda,

The dip switch setting in the document is correct. I assume you set the endianess correctly. That is the pin 1 of SW 3. I suggest you debug this by connecting the c6678 to a known working console to exclude your minicom setup. You mentioned earlier that programming evm was successful. I also assume that correct image was programmed. If the minicom was working with other applications/boards, then we need to visit what was programmed to the evm.

Rex

0 Dr. Yehuda Singer over 11 years ago in reply to Rex Chang

Expert 1240 points

Dear Rex

I observed in the Linux that the serial port is "living". When the board perfoms boot, I get unreadable characters.

Can you please check the parameters for me?

Thanks,

Yehuda

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Booting from NAND