**** BEGIN LOGGING AT Sun Mar 03 02:59:56 2019 Mar 03 03:37:27 No one? Sheesh. Tough crowd. Mar 03 08:18:57 hi, I am using beaglebone black. The onboard memory DDR memory is 4gb but the board can only use 500MB! whats limiting its usage? Mar 03 08:19:34 Even the memory map of AM335x has provision of 1GB space on EMIF where ddr memory is mapped Mar 03 08:19:37 i.e. Mar 03 08:19:57 EMIF0 SDRAM = 0x8000_0000 0xBFFF_FFFF 1GB 8-/16-bit External Memory Mar 03 08:38:31 ijaz: I'm not aware of any BBB with 4GB RAM Mar 03 08:38:45 4GB eMMC is the usual *storage* size though Mar 03 08:39:55 as you can see here, the regular BBB has 512 MegaByte of RAM: https://beagleboard.org/BLACK Mar 03 08:40:47 I think there is one spin with 1GB RAM, GBit Ethernet, but that's not mainstream Mar 03 08:41:02 https://beagleboard.org/enhanced Mar 03 08:50:32 the part number is D2516EC4BXGGB Mar 03 08:50:37 which 4Gb Mar 03 09:12:13 ijaz: yes, that's 4 GigaBit, which equals 512 MegaByte Mar 03 09:12:25 as in this case 8 bit are 1 byte Mar 03 09:14:49 to get 4 GigaByte, you'd need 16 GigaBit, but I think that would probably require several chips. Mar 03 09:15:17 err 32 GigaBit Mar 03 14:03:09 the AM335x does not support 4 gigabyte of ram anyway. TI claims it supports max 1 gigabyte, I'm 99% sure it actually supports max 2 gigabyte Mar 03 14:03:45 yup Mar 03 14:12:22 ok I'll reduce that to 80%... maybe the problem is that support for 11 column bits (2048-word page size) is broken, even though it is explicitly listed as feature in the EMIF chapter and not listed as broken in any errata Mar 04 00:45:03 Hi,all. I want to know that are there differences between BeagleBone Black and BeagleBone Black Wireless about pinout. Mar 04 00:45:51 I want to use DLPCLCR2000EVM with BBBW,so I tried with DLP tutorial. Mar 04 00:45:51 no, they exactly the same pinout/functionality on their expansion headers Mar 04 00:45:58 *they have Mar 04 00:46:23 Thank you !!! I expect the difference. Mar 04 00:47:27 I want to know the pinout of BBBW.Please give me informations? Mar 04 00:47:32 the BeagleBone Black, BeagleBone Green, and BeagleBone Black Wireless are fully compatible. The BeagleBone Green Wireless is not, avoid that one. Mar 04 00:48:00 Oh. Mar 04 00:48:41 BBB and BBBW are same. Mar 04 00:48:44 yes Mar 04 00:48:56 Thank you so much! Mar 04 00:49:31 My Problem "why DLPCLCR is not working" is helped by TI forum , with this information. Mar 04 00:49:39 I have a spreadsheet with detailed pinout information of the AM335x in general and the BeagleBone Black in particular (along with some information about other beaglebone variants): https://goo.gl/Jkcg0w Mar 04 00:50:26 the DLPDLCR2000EVM should definitely work on the beaglebone black wireless Mar 04 00:51:44 Really? My DLPDLCR2000EVM haven't worked on beaglebone black wiress , so I've orderd BBB(not wireless) Mar 04 00:52:12 any cape that works on the BBB should work on the BBBW Mar 04 00:52:25 Oh! great! Mar 04 00:52:26 since there are no differences in pinout Mar 04 00:53:09 My asking to TI is https://e2e.ti.com/support/dlp/f/94/p/777948/2877040#2877040 Mar 04 00:53:26 Do you know any information in this situation? Mar 04 00:54:28 are you running the latest debian image from https://beagleboard.org/latest-images ? Mar 04 00:54:44 Yes. my version is 9.5. Mar 04 00:55:13 also, if you're running it from sd card (rather than flashing to eMMC and booting from that), you should erase the eMMC using: sudo blkdiscard /dev/mmcblk1 (and then reboot) Mar 04 00:55:37 the presence of an old bootloader on eMMC can cause problems when booting from sd card Mar 04 00:55:45 erasing eMMC ensures the bootloader on sd card will be used instead Mar 04 00:56:36 Oh, I'm running from SD card.But don't erase the eMMC Mar 04 00:56:49 I just try the command. Mar 04 00:57:55 that should be sufficient to make the cape work plug&play without any further configuration, I think Mar 04 00:58:29 if it still doesn't work, try checking the pin configuration using my show-pins utility: https://github.com/mvduin/bbb-pin-utils/#show-pins Mar 04 00:58:47 Now connecting.Just moment please. Mar 04 00:58:58 (to share the output with us, you can use a paste service like pastebin.com) Mar 04 01:00:38 I log in to BBBW now.now I do "sudo blkdicard /dev/mmcbl1k1" Mar 04 01:02:38 rebooting... Mar 04 01:02:55 your E2E post does seem to suggest you've done all sorts of messing with your system. it may be necessary to undo whatever you did, or start with a fresh image Mar 04 01:06:53 Now rebooting , but it seems my system don't boot... by SSH. Mar 04 01:08:31 it isn't clear to me what you've been doing with your kernel and dtb, and it's possible you've rendered them incompatible with the default settings for the bootloader... I suggest starting with a fresh image flashed to sd card Mar 04 01:08:56 Ok. I understand. Mar 04 01:09:02 the fact that behaviour changed by erasing eMMC is a strong indication that your previous problems were indeed caused by the old bootloader on eMMC Mar 04 01:09:46 I try to restart in making SD card again. Mar 04 01:10:47 I hope the DLP working with "Erase the eMMC" and restart the tutoarial. Mar 04 01:11:36 Thank you! I'm going to try now. Mar 04 01:14:03 good luck! Mar 04 01:35:51 Great!!!! I can get the X window with DLP by your helping!!!! Mar 04 01:36:10 hurray! Mar 04 01:37:18 These command are needed before i2cdetect. Mar 04 01:37:19 • $ sudo su Mar 04 01:37:50 Soryy Mar 04 01:37:51 • $ sudo su; echo 48 > /sys/class/gpio/export;echo out > /sys/class/gpio/gpio48/direction; echo 1 > /sys/class/gpio/gpio48/value Mar 04 01:38:54 After this comman,i2cdetect find the DLP, and when i2cset command I get X window in DLP!!! Mar 04 01:39:43 Thank you very much!!! I've taken this problem during 2week. So I'm very happy. Mar 04 01:42:57 My Problem is solved with your great help.Thank you. Bye! Mar 04 01:43:05 :) **** ENDING LOGGING AT Mon Mar 04 02:59:57 2019