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  • [01:51:33] <Crofton> Hopefully, we will all watch the greatest American cyclist ever ride from Paris to Roubaix in the morning!
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  • [14:58:29] <dirk2> NishantMenon: Hi. Just read your mail about download utility.
  • [15:02:49] <NishanthMenon> dirk2: not much success on uart 3... am trying to get the darn thing talk anything more than 40H on uart3 and i cant..
  • [15:03:21] <NishanthMenon> dirk2: I dont have jtag.. so debugging with the LED :(
  • [15:03:39] * NishanthMenon off for house work
  • [15:04:44] <dirk2> Have no JTAG, too. Used no debug. Hoped to simply get something out the UART3. How to access the LED?
  • [15:05:11] <NishanthMenon> check the led code
  • [15:05:13] <NishanthMenon> in x-loader
  • [15:05:23] <NishanthMenon> it is on one of the gpios
  • [15:05:35] <dirk2> Okay
  • [15:05:38] <NishanthMenon> gpio5 block or something..
  • [15:06:13] <dirk2> Just for better understanding: You use a perl script on PC and try to download modified xloader to SRAM?
  • [15:06:20] <NishanthMenon> yep
  • [15:06:25] <NishanthMenon> samething ur c file does
  • [15:07:13] <NishanthMenon> board/omap3530beagle/omap3530beagle.c blinkLEDs has the code..
  • [15:07:27] <dirk2> For target code I hoped some write to UART THR should be enough, as the UART is already initialized by bootrom
  • [15:08:04] <NishanthMenon> hmm... i would expect so, am not sure if rom code shuts of clocks -i/f etc when handing over control..
  • [15:08:11] <NishanthMenon> something like a shutdown ops..
  • [15:08:34] <dirk2> that would be bad for my test...
  • [15:08:43] <NishanthMenon> in which case, we'd have to do inits.. was thinking of checking that out... but being married == do house work.. :(
  • [15:09:36] <NishanthMenon> dirk2: you could probably add code to disable wdt (to prevent reset), add iclk,fclk enable, then enable the leds.. see if it works.. (this is what i was planning on writing)
  • [15:10:08] <dirk2> Yes, sounds some more work has to be done :(
  • [15:10:37] <dirk2> Do you send peripheral boot and image size as little or big endian? Manual doesn't tell anything about this.
  • [15:10:51] <NishanthMenon> i think it is little endian
  • [15:10:53] <dirk2> With DaVinci, we fighted with the order of byte sending
  • [15:10:58] <NishanthMenon> my script works on zoom mdk
  • [15:11:04] <NishanthMenon> which should be compatible here
  • [15:11:20] <dirk2> Ah, okay!
  • [15:11:50] <dirk2> But bootrom should be the same on beagle and zoom mdk?
  • [15:12:21] <NishanthMenon> they say the silicon is different....... 3430 on mdk, 3503 on beagle.. i think though the basic rom code ops wont change
  • [15:12:38] <dirk2> Don't think so, too.
  • [15:13:45] <dirk2> Your modified xloader works on zoom mdk? Or do you use other target code there?
  • [15:14:13] <NishanthMenon> http://openlabrador.org/pub/bootloader/
  • [15:14:38] <NishanthMenon> gives u x-loader, u-boot and script. all of which can be used to flash an image to MDK
  • [15:15:11] <dirk2> ASIC ID of beagle identifies as 3430, so should be the same
  • [15:15:16] <NishanthMenon> yep.
  • [15:15:36] <NishanthMenon> the patch i send to the list is from the x-loader here...
  • [15:15:53] <NishanthMenon> the one here though does not have mmc boot support (which beagle has!)
  • [15:21:05] <NishanthMenon> dirk2: http://www.omapzoom.org/pub/bootloader/ same link but I guess this is the official site :)
  • [15:25:46] <NishanthMenon> dirk2: the strategy in x-loader (peripheral boot) is to support download over UART using kermit (borrowed from u-boot)
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