2009-01-06 00:52:48 Issue in copying uboot using UART
Angel Thomas (INDIA)
Message: 67413
Hi,
I referred the following site:
http://docs.blackfin.uclinux.org/doku.php?id=bootloaders:u-boot:loading#boot_via_the_uart
Using the same BF-527 device and serial cable i copied the uboot.ldr previously. Its not allowing now and showing the following error with the ldr application.
"Trying to send autobaud ... OK!
Trying to read autobaud ... ldr: received signal 14: timeout while sending; aborting"
After that i try with ldrviewer to connect the device. Error showed at this point is:
"CTS not ready".
Could you tell me how to solve this ?
Angel
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2009-01-06 00:56:48 Re: Issue in copying uboot using UART
Mike Frysinger (UNITED STATES)
Message: 67414
did you read the troubleshooting section ?
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2009-01-06 01:31:20 Re: Issue in copying uboot using UART
Angel Thomas (INDIA)
Message: 67418
Yes, i did that.
I check the Switch Settings and boot mode.
SW10 is : off on off on
Boot mode is : 8 eight(using UART1).
I am using ttyS0 terminal. Hit the reset button before copying. Closed the minicom terminal.
I was using the same serial cable with the device. It is still working properly with BF548.
Angel
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2009-01-06 01:47:58 Re: Issue in copying uboot using UART
Mike Frysinger (UNITED STATES)
Message: 67421
did you verify the low level test worked ?
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2009-01-06 03:36:12 Re: Issue in copying uboot using UART
Angel Thomas (INDIA)
Message: 67430
Hi,
Thank you so much for your quick response.
I am not wellversed with the hardware side. Can you explain me how to do the low level test.
Since i am not able to copy the uboot, interaction with the device is not possible.
Is there any other way do it?
POST program is running in boot mode 1.
Angel
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2009-01-06 03:44:59 Re: Issue in copying uboot using UART
Mike Frysinger (UNITED STATES)
Message: 67434
it's in the troubleshooting section of the aforementioned document
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2009-01-06 04:41:21 Re: Issue in copying uboot using UART
Angel Thomas (INDIA)
Message: 67462
Hi Mike,
Referred the trouble shooting document and did the low level test. The Device is not responding with the escape characters.
The kermit got hang after hitting the spacebar.
Tried the UART Autobaud test using Visual DSP . Can't find any expected escape character as result in hyperterminal.
Angel
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2009-01-06 04:45:36 Re: Issue in copying uboot using UART
Mike Frysinger (UNITED STATES)
Message: 67463
then it means hardware or your desktop system. double check your switch settings and you hit reset on the board a few times.
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2009-01-11 23:28:10 Re: Issue in copying uboot using UART
Angel Thomas (INDIA)
Message: 67774
Hi,
Apart UART1 how to copy uboot to the board?
Do we able to copy uboot via UART0 ? If so, What modification have to be follow?
Angel
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2009-01-12 01:02:51 Re: Issue in copying uboot using UART
Mike Frysinger (UNITED STATES)
Message: 67777
read the HRM/datasheet to see what UARTs are supported
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2009-01-12 05:12:45 Re: Issue in copying uboot using UART
Angel Thomas (INDIA)
Message: 67784
Hi,
Copied the u-boot-bf527-ezkit-para-2008R1.5.ldr to parallel flash using Visual DSP. And uboot is loading properlly. That means the problem is only with the UART1 port. Is there any method to load the kernal without using UART1 to the BF-527 device.
Angel
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2009-01-12 07:25:55 Re: Issue in copying uboot using UART
Mike Frysinger (UNITED STATES)
Message: 67795
you can read about ways of loading files in the documentation:
http://docs.blackfin.uclinux.org/doku.php?id=bootloaders:u-boot