2010-11-15 07:31:36     cant load uboot ezkit 537

Document created by Aaronwu Employee on Sep 25, 2013
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2010-11-15 07:31:36     cant load uboot ezkit 537


Message: 95847   


Hey everyone!


I want to load uboot into ezkit 537.


I tried to do it 2 ways:


1.via Visual DSP


First, it very hard to connect the target (when visual dsp is loaded I choose new session, then chose 537 processor, choose "configurator" and then I am not sure what I should choose in "platform properties"->type menu/ I choose either HPUSB-ICE or USB-ICE or bf537 usb-ezkit and then there is an error connecting "open device driver failed")


Sometimes it works randomly, although very rare


I tried to flash-program u-boot-bf537-stamp-spi-2009R1.1-rc1.ldr(switched bootmode to 1)


and u-boot-bf537-stamp-bypass-2009R1.1-rc1.bin (switched bootmode to 0)


After that I rebooted the board and tried minicom -s


Set speed to 115200 and this didn't work


Also tried 9600 speed and 57600


I tried bootmodes 1 and 0 because I wasn't sure which I should select, it worked neither way.


Also tried converting image to hex:


bfin-uclinux-objcopy --gap-fill=0xff -I binary -O ihex ../../stamp/u-boot-bf537-stamp-spi-2009R1.1-rc1.ldr u-boot.ldr.hex


It didn't work


2.via UART serial port


took u-boot-bf537-stamp-uart-2009R1.1-rc1.ldr image .


set boot mode switcher to 7


put jumpers and switchers as shown in http://www.analog.com/static/imported-files/eval_kit_manuals/ADSP-BF537_EZ-KIT_Lite_Manual_Rev_2_4.pdf on page 2-9


connected via usb-serial port adapter and executed


"bfin-uclinux-ldr -l ~/Downloads/stamp/u-boot-bf537-stamp-uart-2009R1.1-rc1.ldr /dev/ttyUSB0 "


Then I got error:


Loading LDR /home/leednee/Downloads/stamp/u-boot-bf537-stamp-uart-2009R1.1-rc1.ldr ... OK!

Removing stale lock '//var/lock/LCK..ttyUSB0'

Opening /dev/ttyUSB0 ... OK!

Configuring terminal I/O ... OK!

Trying to send autobaud ... OK!

Trying to read autobaud ... bfin-uclinux-ldr: received signal 14: timeout while sending; aborting


I saw similar error but it was only for 2.6.31 kernel, however I use 2.6.32-24-generic ubuntu kernel


So i couldn't load via UART either




3.I don't have a jtag cable, although I borrowed it for some time and got "run detect first" error, although I had just run it.




So how is it possible to load u-boot into bf537 ezkit?




2010-11-15 07:42:44     Re: cant load uboot ezkit 537

Mike Frysinger (UNITED STATES)

Message: 95848   


please review the documents:




you want bmode 0 and 57600 baud




2010-11-15 09:12:48     Re: cant load uboot ezkit 537


Message: 95851   


It didn't help.


I placed switchers and jumpers as said in manual.(except 5 jumper,I dont havea jumper for it, but it is necessary for power over USB\ethernet , and I don't need that)


boot mode to 7 (boot from uart), reset


then typed


kermit -l /dev/ttyUSB0 -C connect

Removing stale lock /var/lock/LCK..ttyUSB0 (pid 10024 terminated)

Connecting to /dev/ttyUSB0, speed 57600

Escape character: Ctrl-\ (ASCII 28, FS): enabled

Type the escape character followed by C to get back,

or followed by ? to see other options.



Then hit space and nothing happened.


Does this mean UART cable is corrupted?




Also, what the difference between "run from flash" - bmode 0


and "boot from flash" - bmode 1 ?


Why do we choose bmode 0?




2010-11-15 15:26:46     Re: cant load uboot ezkit 537

Mike Frysinger (UNITED STATES)

Message: 95865   


i dont know what manual you're referring to, but you should be following our wiki first:



what rev of Blackfin silicon exactly are you using ?


review the documentation for bmode meanings:





2010-11-17 07:03:01     Re: cant load uboot ezkit 537


Message: 95920   


Wow, thanks! I had 4th switcher placed wrong on SW4 part.


Can you please give me a link to a good U-Boot manual? I need to load an elf file into flash and execute it. I am currently reading http://www.denx.de/wiki/DULG/Manual


But I am being overwhelmed by the information there, so the help is highly desired.




2010-11-17 07:52:15     Re: cant load uboot ezkit 537


Message: 95921   


I found some instructions at http://docs.blackfin.uclinux.org/doku.php?id=bootloaders:u-boot:serial_port_loading_files


Is ELF file loadedthe same way ?




2010-11-17 12:57:50     Re: cant load uboot ezkit 537

Mike Frysinger (UNITED STATES)

Message: 95927   


you can use the upstream manual or our stuff: