Umon command line reached in BBB
edsutterjr at gmail.com
Wed Jun 17 22:57:58 UTC 2015
Those commands will work as long as you access valid memory.
> Going off of the discussion that I had with Ed in regards to getting a
> fully internal SRAM mapped Umon image to work before proceeding to
> implement the DDR3 configuration to have the RAM used by Umon mapped
> there, I went ahead and started working on it.
> I configured the Umon image to be fully mapped within the internal
> SRAM of the AM335x (i.e. BOOTROMBASE/BOOTRAMBASE defined to be within
> the internal SRAM with their corresponding lengths ensured to not
> overlap each other and to not exceed the SRAM boundaries), and then
> enabled INCLUDE_MEMCMDS by setting it to test the DM and PM commands.
> I know that these commands will not work properly given the fact that
> DDR3 is not set up yet, but just wanted to see if some command
> execution is possible.
> I then proceeded to build the image and then booted the image on the
> BBB via UART. Once booted, the Umon command line was presented and
> did some command execution testing. Nothing works properly as of
> right now, but now that I am able to reach the Umon command line I can
> now proceed to getting the other functions implemented.
> My results of getting the Umon command line on the BBB can be found in
> the screen capture provided below.
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