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| Line 32: | Line 32: | ||
6 - nc | 6 - nc | ||
</pre> | </pre> | ||
<pre> | <pre> | ||
The default serial port settings for the board are: | The default serial port settings for the board are: | ||
Baud 115,200 | Baud: 115,200 | ||
Bits 8 | Bits: 8 | ||
Parity N | Parity: N | ||
Stop Bits 1 | Stop Bits: 1 | ||
Flow control: None | |||
</pre> | </pre> | ||
Use this one | Use this one: | ||
http://www.digikey.ca/product-detail/en/ftdi-future-technology-devices-international-ltd/TTL-232R-3V3/768-1015-ND/1836393 | http://www.digikey.ca/product-detail/en/ftdi-future-technology-devices-international-ltd/TTL-232R-3V3/768-1015-ND/1836393 | ||
The 5-pin plug mates with the 5 pin header on the BBB. The "black" wire is the ground, connects to header pin 1. | |||
== Benchmarks == | == Benchmarks == | ||
Revision as of 12:34, 12 September 2019
Beagle Bone Black
Links
- board schematics https://github.com/beagleboard/BeagleBone-Black/blob/master/BBB_SCH.pdf
- linux kernel sources https://github.com/beagleboard/linux
- stock os images https://beagleboard.org/latest-images
- building u-boot, etc https://www.twam.info/hardware/beaglebone-black/u-boot-on-beaglebone-black
On-board hardware
- AM3358BZCZ100 CPU
- 512MB DDR3 memory
- 4GB eMMC (MMC1, 8bit)
- uSD slot (MMC0, 4 bit)
- 100Mbit/s ethernet (MII1)
- USB host (USB1)
- USB slave (USB serial, USB network) (USB0)
- 24LC32A 32Kb I2C EEPROM (8kibytes) (I2C0)
Serial console
AM3359 UART0 is connected to header J1. Use "USB to TTL serial cable 3.3V". Pinout:
Header J1: 1 - GND 2 - nc 3 - nc 4 - UART0 RX 5 - UART0 TX 6 - nc
The default serial port settings for the board are: Baud: 115,200 Bits: 8 Parity: N Stop Bits: 1 Flow control: None
Use this one: http://www.digikey.ca/product-detail/en/ftdi-future-technology-devices-international-ltd/TTL-232R-3V3/768-1015-ND/1836393
The 5-pin plug mates with the 5 pin header on the BBB. The "black" wire is the ground, connects to header pin 1.
Benchmarks
root@beaglebone:~# uname -a Linux beaglebone 3.8.13-bone47 #1 SMP Fri Apr 11 01:36:09 UTC 2014 armv7l GNU/Linux root@beaglebone:~# cat /proc/cpu cat: /proc/cpu: Is a directory root@beaglebone:~# cat /proc/cpu cpu/ cpuinfo root@beaglebone:~# cat /proc/cpuinfo processor : 0 model name : ARMv7 Processor rev 2 (v7l) BogoMIPS : 298.24 Features : swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x3 CPU part : 0xc08 CPU revision : 2 Hardware : Generic AM33XX (Flattened Device Tree) Revision : 0000 Serial : 0000000000000000 root@beaglebone:~#
root@beaglebone:~# ./memcpy_arm memcpy 1 KiBytes: 417 MB/sec memcpy 2 KiBytes: 960 MB/sec memcpy 4 KiBytes: 1199 MB/sec memcpy 8 KiBytes: 1338 MB/sec memcpy 16 KiBytes: 1412 MB/sec memcpy 32 KiBytes: 1453 MB/sec memcpy 64 KiBytes: 1313 MB/sec memcpy 128 KiBytes: 1394 MB/sec memcpy 256 KiBytes: 516 MB/sec memcpy 512 KiBytes: 261 MB/sec memcpy 1024 KiBytes: 210 MB/sec memcpy 2048 KiBytes: 203 MB/sec memcpy 4096 KiBytes: 201 MB/sec memcpy 8192 KiBytes: 205 MB/sec memcpy 16384 KiBytes: 205 MB/sec memcpy 32768 KiBytes: 189 MB/sec memcpy 65536 KiBytes: 203 MB/sec memcpy 131072 KiBytes: 202 MB/sec root@beaglebone:~#
2014 image
root@beaglebone:~# blkid
/dev/mmcblk1p2: LABEL="rootfs" UUID="e884e88d-ea6e-40f2-8521-0a68832c5978" TYPE="ext4"
/dev/mmcblk1p1: SEC_TYPE="msdos" LABEL="boot" UUID="0BDD-F792" TYPE="vfat"
/dev/mmcblk0p1: LABEL="BBB_LAUREN" UUID="82A6-7DA7" TYPE="vfat"
root@beaglebone:~#
root@beaglebone:~# fdisk -l
Disk /dev/mmcblk0: 15.7 GB, 15707668480 bytes
255 heads, 63 sectors/track, 1909 cylinders, total 30679040 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/mmcblk0p1 * 8192 30679039 15335424 c W95 FAT32 (LBA)
Disk /dev/mmcblk1: 3925 MB, 3925868544 bytes
4 heads, 16 sectors/track, 119808 cylinders, total 7667712 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/mmcblk1p1 * 2048 198655 98304 e W95 FAT16 (LBA)
/dev/mmcblk1p2 198656 7667711 3734528 83 Linux
Disk /dev/mmcblk1boot1: 1 MB, 1048576 bytes
4 heads, 16 sectors/track, 32 cylinders, total 2048 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mmcblk1boot1 doesn't contain a valid partition table
Disk /dev/mmcblk1boot0: 1 MB, 1048576 bytes
4 heads, 16 sectors/track, 32 cylinders, total 2048 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mmcblk1boot0 doesn't contain a valid partition table
root@beaglebone:~#
root@beaglebone:~# df -kl
Filesystem 1K-blocks Used Available Use% Mounted on
rootfs 3610232 1760200 1663308 52% /
udev 10240 0 10240 0% /dev
tmpfs 101804 2084 99720 3% /run
/dev/disk/by-uuid/e884e88d-ea6e-40f2-8521-0a68832c5978 3610232 1760200 1663308 52% /
tmpfs 254508 0 254508 0% /dev/shm
tmpfs 254508 0 254508 0% /sys/fs/cgroup
tmpfs 102400 0 102400 0% /run/user
tmpfs 5120 0 5120 0% /run/lock
/dev/mmcblk1p1 98094 73336 24758 75% /boot/uboot
/dev/mmcblk0p1 15319040 2045576 13273464 14% /media/BBB_LAUREN
root@beaglebone:~#
Copy of all files here:
/daq/daqshare/olchansk/BBB/2014-image
2018-01-05 image
Images of working system built by Keith Ong from Pierre 2018-01-05. To move mirrors, run ~debian/Programming/mems.c.
All the blkid, fdisk partitions, etc is same as before. OS is "Debian GNU/Linux 7.8 (wheezy)".
root@beaglebone:~# uname -a Linux beaglebone 3.8.13-bone70 #1 SMP Fri Jan 23 02:15:42 UTC 2015 armv7l GNU/Linux
Images in /daq/daqshare/olchansk/BBB/2018-01-05.