higher uart baud rate corrupts image..

A quick question..

i have been to use succesfully bootloader kernel and ramdisk , but
only on certain serial port speed .

I am facing a data corruption in dowloading kernel+ramdisk image
at higher serial port speed.

if i set my baud speed to 19200 it WORKS FINE.

otherwise at higher serial port speed  the execve of /bin/sh just
hangs and .

also this problem is related to cpu frequency when i make that
lower or higher the behaviour changed unpredicatabley.

somebody pointed for skew problem woth sdram at higher cpu
frequency.

any body has more here to add...

__________________________________________________________


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

 What serial terminal do you use?
I had the same problem when I was using hyperterminal.
When I changed to SecureCRT, everything workds fine!

                                 John.

 --- atul srivastava [off-list ref]
έγραψε: >

A quick question..

i have been to use succesfully bootloader kernel and
ramdisk , but
only on certain serial port speed .

I am facing a data corruption in dowloading
kernel+ramdisk image
at higher serial port speed.

if i set my baud speed to 19200 it WORKS FINE.

otherwise at higher serial port speed  the execve of
/bin/sh just
hangs and .

also this problem is related to cpu frequency when i
make that
lower or higher the behaviour changed
unpredicatabley.

somebody pointed for skew problem woth sdram at
higher cpu
frequency.

any body has more here to add...

__________________________________________________________

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/