i have attached my beagle board to pc via USB OTG for power
and RS232 via USB to Minicom . after that i set required
configuration.
but minicom is starting i didn't get the display. what should i do for
that.
please tel me any solution for testing that BeagleBoard is working or
not.
Welcome to minicom
2.3
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Compiled on Sep 25 2009,
23:40:20.
Port /dev/
ttyUSB0
Press CTRL-A Z for help on special
keys
the above message is disply with blinking cursor .....
whats the solution for that.
If I were you, I would read section 13 of the System Reference Manual and make sure you have the correct serial cable configuration. It will take you through step by step to make sure your cable is correct.
Its serial cable is correct. when i connect BeagleBoard to PC via USB OTG
for power and data via USB to minicom and start. but only power LED glows
minicom shows boot display. but system not boots D6,D7 led not glows.
i didn't get what happen exactly.
It would at least help if you provide a more precise description on
what you did and didn't do.
In your furst post you said you had no display, here you say that you
have display.
And have you tried the suggestions from Gerard? If so what was the
result. If not, why not?
I have a few queries . I would be greateful of some of our Beagle
board gurus can help me resolve them
1) First Minicom is not working with beagleboard. I am on Ubuntu.
Not sure what i am doing wrong.
I have BB connected through null model cable and null modem to USB
connector.
Please correct me if i am wrong.
(I think that we should see something coming up on minicom display
even if we have not connected the SD card which contains android
image.Please correct me if i am wrong)
2) I used a link which said that boot image will be loaded in to the
flash and hence beagle board can boot from flash there after.
Before using instruction on this link i was using SD card to boot each
time and i was able to see beagleboard login prompt.
Is there any way that i can go back to the same prompt ?(In other
words deleting the flash image. Correct me if i am wrong)
I have a few queries . I would be greateful of some of our Beagle
board gurus can help me resolve them
1) First Minicom is not working with beagleboard. I am on Ubuntu.
Not sure what i am doing wrong.
I have BB connected through null model cable and null modem to USB
connector.
Please correct me if i am wrong.
(I think that we should see something coming up on minicom display
even if we have not connected the SD card which contains android
image.Please correct me if i am wrong)
Hi.
First things first: are you sure you are pointing minicom to the correct
serial device and it has all flux control disabled?
Try to cat the interface, press the reset button on the BB and see if
something shows up. If not, chances are you have a faulty part
elsewhere. For instance, I'm using a usb to serial adapter so the device
is, in my case, /dev/ttyUSB0 thus a cat /dev/ttyUSB0 shows the boot
messages when I start the BB.
It sounds like to me that your serial issues are related to a corrupted NAND issue. You can also try inserting your SD card, and holding the USer Button down while pressing and releasing the Reset button. This will force the board to boot from the SD instead of what’s in NAND.
If what Gerry recommended doesn't work, try "apt-get install gtkterm", it's a GUI and much simpler than minicom. You just select port /dev/ttyUSB0 and away you go. It's solved the issue with minicom for another user I recommended it to.
Regards
Sid.
hi a small query, i too had the same problem tht i wasnt able to view any serial information on minicom. but i had changed a new serial cable. I aint connecting any null modem cable, i simply connect my db9 to idc 10 cable to my board and pc. Now i am able to get the serial information and I am able to boot angstorm from nand and i can boot from sd card also. But now I am not able to AUTO STOP and enter the boot args…i dono why serial comm is not detecting my keyboard i cant enter any boot args to proceed on…can any1 sugest wht is the problem?is thr any problem with serial cable r board??
Shriram,
The setup you need is clearly explained in the user guide. If you have a multi-meter, please make sure pin 2 and pin 3 are crisscrossed between the BB and the PC. I’d suggest you first examine the IDC10-DB9 connector to make sure that pin 2,3 and 5 of on-board header are indeed connected to pins 2,3 and 5 of DB9. Once this connections are verified, you can attach a null-modem cable to your PC. If you don’t intend to use a null modem cable and want to use the IDC-DB9 cable itself, then pin 2 of IDC should go to pin 3 of DB9 and vice-versa. In either case pin 5 should also be connected to pin 5 of db9. Then, if your minicom settings are correct (115200,8,n,1,no handshake), then you should get the console working both ways.