Okay, thanks very much! I'll give that a try. On Mon, Jul 21, 2014 at 3:23 AM, liyaoshi <liyao...@gmail.com> wrote:
> Sorry , I have made a mistake . > > On omap3 board ,you should use pserial to download from serial > And on am335x / dm8148 board. x-modem is enough.and MLO is for boot from > serial > > So , please try to use teraterm , and upload from > file->transfer->xmodem->send. > Then power on the beaglebone board . > > > 2014-07-21 16:17 GMT+08:00 liyaoshi <liyao...@gmail.com>: > > If I remember correctly , You should load x-loader.bin NOT MLO >> While the different between MLO and x-loader.bin is MLO has 8 bytes head >> , the first 4 bytes is dest and the second 4 bytes is length . >> This is for boot from NAND /eMMC , and when download from serial . the >> boot rom will download to fixed address and limit length . >> >> >> >> 2014-07-21 12:04 GMT+08:00 John Syn <john3...@gmail.com>: >> >> >>> From: Dallas Clement <dallas.a.clem...@gmail.com> >>> Reply-To: "beagleboard@googlegroups.com" <beagleboard@googlegroups.com> >>> Date: Sunday, July 20, 2014 at 9:19 AM >>> To: "beagleboard@googlegroups.com" <beagleboard@googlegroups.com> >>> Subject: Re: [beagleboard] Want to serial boot my BBB >>> >>> One other data point. If I don't press and hold the boot switch when >>> power is applied and instead wait a few seconds after applying power and >>> then press the boot switch, the pserial command is able to detect the ASIC >>> ID and download the x-loan.bin. >>> >>> You should be loading MLO, not x-load.bin. I also haven’t tried this >>> myself, but loading via serial shouldn’t be any different from loading from >>> tftp. The load addresses should be identical. >>> >>> Regards, >>> John >>> >>> >>> $ sudo ./pserial -p /dev/ttyUSB0 -f x-load.bin >>> Waiting For Device ASIC ID: Press Ctrl+C to stop >>> ASIC ID Detected: 0x85 0x74 0x61 0x90 >>> Sending 2ndFile: >>> Downloading file: 100.000% completed (10516/10516 bytes) >>> File download completed. >>> >>> However, the BBB boots from the eMMC instead of the x-loan.bin I >>> downloaded. So this is progress. It means that my pserial command does >>> work with a BBB and the BBB ROM code does respond with its ASIC ID and does >>> in fact download the x-load.bin. It looks like I just need to figure out >>> what the correct boot switch power on sequence is now. >>> >>> On Sunday, July 20, 2014 10:36:45 AM UTC-5, Dallas Clement wrote: >>>> >>>> Hi William. Thanks for the help. I'm stuck much earlier on than >>>> u-boot. I am expecting the ROM to return the ASIC ID when I run the >>>> pserial command to try and load the first stage boot loader (x-load.bin). >>>> I'm not even able to get past that. It looks like either I have the wrong >>>> pserial command or maybe the BBB ROM does not provide an ASIC ID. I don't >>>> know enough about the Sitara processor to say. If I can get the x-loader >>>> to work, I think I am home free because it should be able to load a >>>> u-boot.bin. >>>> >>>> On Sunday, July 20, 2014 10:18:50 AM UTC-5, William Hermans wrote: >>>>> >>>>> Ok after reading the second link fully, I noticed a few things. >>>>> >>>>> First, the boot file is different. We have zImage typically, so I >>>>> would assume the bootz command would be necessary. *OR* you could convert >>>>> a >>>>> zImage to uImage. >>>>> >>>>> Secondly, the base load address is different, so this would need to be >>>>> taken into account. Although I think changing this would be fairly simple. >>>>> >>>>> Lastly, we also need to load the device tree board file, and I am a >>>>> bit confused about this for loading serially. >>>>> >>>>> >>>>> >>>>> >>>>> On Sun, Jul 20, 2014 at 7:59 AM, William Hermans <yyr...@gmail.com> >>>>> wrote: >>>>> >>>>>> uboot is supposed to handle serial booting. However, I have no >>>>>> personal hands on. Just a quick google search showed many results >>>>>> however. >>>>>> One thing to note is that uboot for the BBB is patched, so possibly >>>>>> different. It does not however make sense for this feature to be patched >>>>>> out, so I would assume that it should work. >>>>>> >>>>>> Sorry for the less than definitive answer, perhaps someone with hands >>>>>> on will respond. You can however experiment on your own. >>>>>> >>>>>> http://blackfin.uclinux.org/doku.php?id=bootloaders:u- >>>>>> boot:serial_port_loading_files >>>>>> http://blog.mezeske.com/?p=483 >>>>>> >>>>>> $ apt-cache search ckermit >>>>>> ckermit - serial and network communications package >>>>>> >>>>>> Second link package mentioned is available, so looks to be possible. >>>>>> >>>>>> >>>>>> On Sun, Jul 20, 2014 at 7:44 AM, Dallas Clement < >>>>>> dallas.a...@gmail.com> wrote: >>>>>> >>>>>>> Hi, >>>>>>> >>>>>>> I am trying to boot my BBB over a serial connection, and need a >>>>>>> little help. I have followed the instructions for UART recovery listed >>>>>>> here http://elinux.org/BeagleBoardRecovery >>>>>>> >>>>>>> I built the pserial tool and an x-loan.bin, but when I try to load >>>>>>> it, I just getting hanging. >>>>>>> >>>>>>> $ sudo ./pserial -p /dev/ttyUSB0 -f x-load.bin >>>>>>> Waiting For Device ASIC ID: Press Ctrl+C to stop >>>>>>> >>>>>>> I am using a 6 pin TTL to USB cable to my PC. >>>>>>> >>>>>>> Perhaps the x-load.bin I am using is for the wrong processor >>>>>>> (BeagleBoard)? If so, maybe I can convert the MLO produced by the BBB >>>>>>> u-boot build to a x-load.bin. Just need a few pointers on how to do >>>>>>> that. >>>>>>> >>>>>>> Thanks, >>>>>>> >>>>>>> Dallas >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> For more options, visit http://beagleboard.org/discuss >>>>>>> --- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "BeagleBoard" group. >>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>> send an email to beagleboard...@googlegroups.com. >>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>> >>>>>> >>>>>> >>>>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "BeagleBoard" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to beagleboard+unsubscr...@googlegroups.com. >>> For more options, visit https://groups.google.com/d/optout. >>> >>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "BeagleBoard" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to beagleboard+unsubscr...@googlegroups.com. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to a topic in the > Google Groups "BeagleBoard" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/beagleboard/bsIWXc2pJJY/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > beagleboard+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. 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