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RE: [microblaze-uclinux] [microblaze-uclinux] U-boot can't download "image.ub"



Hi Thierry,

 

Your communication seems to be “ok”, I mean, when the symbol   #   is written, it means that some data has been transferred. On the other hand the symbol  T  stands for timeout.

 

The problem is that you reach 10 timeouts and that is the limit, so the transfer re-starts. I got this problem when working on a busy network and solved it using a local network only with my computer and the FPGA board on it. You could also try increasing the timeout count limit, but I don’t know where it can be modified.

 

Regards.

 

Raúl

 

 

 

De: owner-microblaze-uclinux@xxxxxxxxxxxxxx [mailto:owner-microblaze-uclinux@xxxxxxxxxxxxxx] En nombre de Thierry BESSIERE
Enviado el: jueves, 02 de abril de 2009 9:47
Para: microblaze-uclinux@xxxxxxxxxxxxxx
Asunto: [microblaze-uclinux] [microblaze-uclinux] U-boot can’t download “image.ub”

 

Hi,

 

 

I would like download “image.ub” with a TFTP server but u-boot can’t download this file. Here is what I have in the hyper terminal:

 

_______________________________________________________

Load address: 0x8c000100

Loading: #################################################################

         ##########T #T ###########T T T T T T T T

Retry count exceeded; starting again

TFTP from server 192.168.0.71; our IP address is 192.168.0.10

Filename 'image.ub'.

Load address: 0x8c000100

Loading: #########################T #############T T T T #######################

####

         ############T T T T T ###

Retry count exceeded; starting again

TFTP from server 192.168.0.71; our IP address is 192.168.0.10

Filename 'image.ub'.

Load address: 0x8c000100

Loading: ############################T T T T T T T T T T

Retry count exceeded; starting again

TFTP from server 192.168.0.71; our IP address is 192.168.0.10

Filename 'image.ub'.

Load address: 0x8c000100

Loading: T #T ####T T T T ######################################################

######

         #############################T T T T

Retry count exceeded; starting again

_______________________________________________________

 

I use these command lines before starting the download:

_______________________________________________________

setenv serverip 192.168.0.71

setenv ipaddr 192.168.0.10

setenv bootfile image.ub

________________________________________________________

 

My questions ar the next :

 

1] Should I validate an option in menuconfig for the TFTP protocol?

 

2] On EDK, I must modify the parameters of EMAC?

 

3] PetaLinux is very slow on the FPGA, The lost packets can be the consequence of this?

 

Best regards.

Thierry