Did you look at the System Reference Manual? Yes, it can boot from the SD if you remove the eMMC.
Gerald On Wed, Feb 26, 2014 at 10:15 AM, <[email protected]> wrote: > My design is a cut down version of BBB. The HDMI IC is not fitted and the > eMMC is not fitted. > > Will the BBB boot from SD card without the eMMC IC fitted? Or is the eMMC > essential to the operation even when booting from Sd card? > > > On Wednesday, 26 February 2014 15:45:18 UTC, Gerald wrote: > >> Well. Uh. I have no idea what your design looks like. But, the code you >> are using looks for the EEPROM. Do you have one? If you do. is it >> programmed? >> >> Gerald >> >> >> >> On Wed, Feb 26, 2014 at 9:25 AM, <[email protected]> wrote: >> >>> I can now confirm that my PCB supplier has now successfully fitted >>> connectors P8, P8 and I have taken delivery of my first-off sample. >>> Gerald, are you able to point me to some instructions on how I get my >>> "virgin" beagleboardblack up and running? >>> I have tried using an SD card with a known good android image but this >>> does not work, the error I get from hyperterminal is: >>> >>> U-Boot SPL 2011.09 (Nov 27 2013 - 10:43:10) >>> >>> Chipsee AM335x EVM Board >>> >>> Incorrect magic number in EEPROM >>> >>> read_eeprom() failure. continuing with ddr3 >>> >>> OMAP SD/MMC: 0 >>> >>> mmc_send_cmd: timedout waiting for cmddis! >>> >>> ** Can't read from device 0 ** >>> >>> spl: fat register err - -1 >>> >>> ### ERROR ### Please RESET the board ### >>> >>> I'm not surprised that it doesn't yet work because there must be some >>> programming/setup to be done on the board itself before it will operate and >>> this hasn't yet been done. >>> >>> I think I may have to program the E2..? >>> >>> Could you help me with that procedure please? >>> >>> On Tuesday, 18 February 2014 16:10:00 UTC, >>> [email protected]: >>>> >>>> Thank you Gerald. I will confirm if that is the case when I see the >>>> sample. >>>> >>>> On Tuesday, 18 February 2014 16:06:10 UTC, Gerald wrote: >>>>> >>>>> We did tighten them up along time ago, so that is most likely the >>>>> issue they think they have. >>>>> >>>>> Gerald >>>>> >>>>> >>>>> >>>>> On Tue, Feb 18, 2014 at 9:45 AM, <[email protected]> wrote: >>>>> >>>>>> Thank you for the speedy response Gerald. >>>>>> >>>>>> The PCB files used were those contained in Beaglebone_blackrevB4_MFG. >>>>>> zip >>>>>> >>>>>> Is it likely the holes were deliberately under-sized to the datasheet >>>>>> to give the tight fit you mention. >>>>>> >>>>>> I am yet to see the problem physically for myself. The PCB supplier >>>>>> is sending the board to me so I can assess. >>>>>> >>>>>> On Tuesday, 18 February 2014 13:43:18 UTC, Gerald wrote: >>>>>> >>>>>>> We don't have any issues. We do look for a tight fit to prevent >>>>>>> moving during the soldering process. We have used these same connectors >>>>>>> for >>>>>>> a very long time now without issue. >>>>>>> >>>>>>> Which PCB files did you use? >>>>>>> >>>>>>> Gerald >>>>>>> >>>>>>> >>>>>>> >>>>>>> On Tue, Feb 18, 2014 at 6:41 AM, <[email protected]>wrote: >>>>>>> >>>>>>>> >>>>>>>> I hope someone can help with this. >>>>>>>> >>>>>>>> I am currently getting some BBB PCBs manufactured. I have used the >>>>>>>> gerber data and BoM supplied but the PCB manufacturer is reporting an >>>>>>>> issue >>>>>>>> with the specified connectors not fitting because the PCB hole size is >>>>>>>> too >>>>>>>> small to take the pins. >>>>>>>> >>>>>>>> The connector specified is: SSHS-123-D-02-GT-LF which has >>>>>>>> recommended hole size of 0.040 (1.2mm) >>>>>>>> >>>>>>>> The PCB manufacturer is telling that the hole size in the drill >>>>>>>> file is: T04 Holesize 4. = 30.000000 Tolerance = +3.000000/-3.000000 >>>>>>>> PLATED >>>>>>>> MILS Quantity = 96 >>>>>>>> >>>>>>>> The data I have sent to them is from the file: >>>>>>>> Beaglebone_blackrevB4_MFG.zip >>>>>>>> >>>>>>>> I am unsure what has happened here. Obviously these boards can be >>>>>>>> manufactured with the data. >>>>>>>> >>>>>>>> I'd be grateful of any input and also if anyone can specify a >>>>>>>> connector that will fit holes of that size? >>>>>>>> >>>>>>>> Many Thanks. >>>>>>>> >>>>>>>> -- >>>>>>>> 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 [email protected]. >>>>>>>> >>>>>>>> For more options, visit https://groups.google.com/groups/opt_out. >>>>>>>> >>>>>>> >>>>>>> -- >>>>>> 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 [email protected]. >>>>>> For more options, visit https://groups.google.com/groups/opt_out. >>>>>> >>>>> >>>>> -- >>> 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 [email protected]. >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >> >> -- > 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 [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > -- 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 [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
