2009-09-14 12:47:35     how to uboot bf548ezlit kit

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2009-09-14 12:47:35     how to uboot bf548ezlit kit

sai annam (UNITED STATES)

Message: 79881   

 

i am new bee in the hardware field.

 

intrested to boot up my BF548 ezlite kit, to port uclinux on it

 

does it require Uboot for porting Uclinux on to this board or it already have uboot when shipped

 

i hav linux on my system,toolchain ,terminal program(minicom),jtag installed(but i have only hp-usb ice jtag which i got with board).but this jtag hp-usb ice is not detected when i use the command  jtag>detect

 

what should i do now......

 

can someone help in this regard

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2009-09-14 13:17:08     Re: how to uboot bf548ezlit kit

Mike Frysinger (UNITED STATES)

Message: 79882   

 

like the documentation says, the HP-USB ICE is not supported by the GNU tools

 

please read the documentation for getting started:

https://docs.blackfin.uclinux.org/doku.php?id=bootloaders:u-boot:loading

https://docs.blackfin.uclinux.org/doku.php?id=hw:boards:bf548-ezkit

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2009-09-14 14:01:55     Re: how to uboot bf548ezlit kit

sai annam (UNITED STATES)

Message: 79883   

 

ya but it have many options like flashing boot through gnice, jtag blue,and uart.

 

i am confused what to use .like what is sutable for my kit.

 

i am having bf548ezlit kit,rev 2.0.

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2009-09-14 14:05:58     Re: how to uboot bf548ezlit kit

Mike Frysinger (UNITED STATES)

Message: 79884   

 

if you dont have the hardware, it really isnt an option now is it ?

 

please read the documentation again.  you dont need jtag to boot a bf548-ezkit.

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2009-09-14 14:29:01     Re: how to uboot bf548ezlit kit

sai annam (UNITED STATES)

Message: 79885   

 

i have uart cable can i flash using this.?

 

will there be any diffrence, if i flash using  uart from that of  gnice in future.if there is no difference i will  go ahead and try using uart.

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2009-09-14 14:50:56     Re: how to uboot bf548ezlit kit

Mike Frysinger (UNITED STATES)

Message: 79886   

 

u-boot doesnt care how it is written to flash

 

once again, read the documentation

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2009-09-14 15:05:59     Re: how to uboot bf548ezlit kit

sai annam (UNITED STATES)

Message: 79887   

 

ya i read the douc

 

it says using uart we can uboot onto external memory only,and need a program to boot to flash.what does this actually mean.

 

can u tell me how to load uboot using terminal.i think its in not in douc

 

thanks for your help

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2009-09-14 17:08:26     Re: how to uboot bf548ezlit kit

Mike Frysinger (UNITED STATES)

Message: 79888   

 

it is in the documentation.  u-boot has no problem programming flash itself.

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2009-09-15 13:13:11     Re: how to uboot bf548ezlit kit

sai annam (UNITED STATES)

Message: 79936   

 

i uboot my board using uart

 

i did this on windows platform using ldr viewer

 

first i set the board settings to uart boot settings and followed the remaining steps

 

everything went quit normal as told in docu

 

but in last point in docu say as "Now close LdrViewer, open the terminal and connect to the serial port, you can see the u-boot has already started up successfully. Hit enter a few times to get a prompt."

 

i did so dut when i connect to terminal(ttpro) i didnt find ant diff .i hit enter but i didnt see promt.

 

after i uboot my screen turn blank(white screen)

 

can u help where i went wrong

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2009-09-15 13:17:42     Re: how to uboot bf548ezlit kit

Mike Frysinger (UNITED STATES)

Message: 79937   

 

considering you need Linux in order to compile software, you might as well use ldr-utils

 

otherwise, the documentation already has a troubleshooting section you should read

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2009-09-15 13:39:50     Re: how to uboot bf548ezlit kit

sai annam (UNITED STATES)

Message: 79938   

 

considering you need Linux in order to compile software, you might as well use ldr-utils

 

so i need uclinux on this board to do anything else ?

 

am i sucessful with flashing u-boot on board?

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2009-09-15 16:14:50     Re: how to uboot bf548ezlit kit

Mike Frysinger (UNITED STATES)

Message: 79945   

 

why do you want to install u-boot if you arent going to be booting linux ?

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