[U-Boot-Users] Serial terminal & u-Boot

Anders Larsen alarsen at rea.de
Wed Jul 23 09:36:20 CEST 2003


"Brian S. Park" <brian at corelis.com> schreibt:
>Hi all,
>I'm using u-Boot 0.4.0 with our custom board based on IBM walnut.
>I noticed that if I do not have the HyperTerminal running, the boot
>process 
>never proceeds.
>
>If I power up the target with out HyperTerminal running, it never comes
>up. 
>As soon as start HyperTerminal, I see print out for Kernel download and
>the 
>board boots up. It looks as though it was waiting for the serial 
>communication before it starts downloading the kernel over the ethernet.
>
>Is this normal behavior? Is there a way to make it boot up regardless of 
>whether a serial terminal is connected or not?

Hi,

did you by any chance enable CONFIG_SERIAL_SOFTWARE_FIFO ?
In that case the driver uses CTS/RTS handshake, which would explain your
problem.

HTH
Cheers
	Anders





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