Hi Wolfgang,
I have a number of u-boot development questions that I would like to raise to
you for answers:
(1) Is it possible to install u-boot in a Windows XP environment? If it is,
please tell me
the steps to follow. Are they the same as those cut out for Linux?
(2) Is it possible to use 'cgywin' to build u-boot, since 'cgywin' mimicks
Linux's environment?
(3) Is it possible to directly download an u-boot image onto the RAM space of a
customerized
development board to debug u-boot? If it is, please list out the steps to
follow.
(4) What type of u-boot image should be used, if downloading of the u-boot
image to the RAM
space of the board is via a Lauterbach ICE (a debugger with a JTAG interface)?
Normally, a
Lauterbach ICE expects a .axf file to be downloaded (axf = archived, executable
file), but
in the u-boot case, should it be the ELF image u-boot build generates?
(5) The intention of the endeavor is to develope some "standalone applications"
that allow
frequencies/operating-voltages of the CPU & peripherals to be changed, during
the time
when u-boot is run, such as to measure the performances of the CPU & other
peripherals.
The existing development board has an ARM Cortex-A9 and a Cortex-R4 running on
it.
(6) Is it possible to make "minor changes" to the u-boot codes, such that
controls could
be passed back to u-boot at will from an application, which gets executed using
the u-boot command:
go <address> ?
Please elaborate in as much details as possible, if it can. The motivation is
that after a change
of operating frequencies & voltages of the CPU & peripherals, u-boot command:
go <address>
would be called to measure performances of the board. Thereafter, control would
be returned
to u-boot again, such that another set of operating frequencies & voltages
could be selected.
(7) Is it possible for a file to be read in, say, from a SD card via u-boot
command, since
u-boot comes with a SD driver?
Also, is there any write-up that describes how to search past questions raised
by u-boot users?
As it stand, I google search seems to be the only way that I could be used to
come up with
relevant questions associated with a keyword.
Thank you in advance for your help, and looking forward to your reply.
Thanks,
Ivan
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