Jeff Epler
4715875cc4
.. leading zeros are required for `frontmatter` to treat them as dates
rather than strings, apparently per the YAML specification.
This was done by script:
```py
import re
import datetime
import pathlib
import sys
import frontmatter
rx = re.compile(r'^(\s*)date_added:.*$', re.M)
for path_str in sys.argv[1:]:
print(path_str)
path = pathlib.Path(path_str)
post = frontmatter.load(path)
date_added = post.get("date_added", "")
if isinstance(date_added, datetime.date):
continue
if isinstance(date_added, str):
try:
date_added = datetime.datetime.strptime(date_added, "%Y-%m-%d")
except ValueError as exc:
print(f"Failed to parse date {date_added} in {path_str}: {exc}")
continue
date_added = date_added.date()
content = path.read_text("utf-8")
new_content = rx.sub(lambda m: f"{m.group(1)}date_added: {date_added}", content)
assert content != new_content
path.write_text(new_content, "utf-8")
```
2.9 KiB
| layout | board_id | title | name | manufacturer | board_url | board_image | downloads_display | blinka | date_added | features | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| download | beaglebone_black | BeagleBone Black Download | BeagleBone Black | BeagleBoard |
|
beaglebone_black.jpg | true | true | 2019-12-03 |
|
If you liked the BeagleBone Black Rev B, you will love the Rev C! The Rev C has a blistering 1GHz AM3358 processor and 512MB onboard DDR3 RAM, two 46-pin headers, micro HDMI for audio/video output, USB ports, 10/100 Ethernet and other I/O features. The Rev C is an ultra-powered embedded computer that can fit in a mint tin.
This model includes 4GB of eMMC built-in storage instead of the Rev B's 2GB. With the doubled storage and faster eMMC, the developers were able to make the Rev C's most significant change: shipping the BeagleBone Black with Debian Linux pre-loaded on the board's flash instead of Angstrom Linux. Debian Linux is a more user-friendly operating system than Angstrom and the switch to Debian is partly the result of consumer demand (especially from Adafruit users, thanks!)
Of course the BeagleBone Black Rev C is an open board so if you want to load it back up with Angstrom or other Linux-based distributions like Ubuntu or Android, you can.
The rev C comes with a mini-B cable for powering it up ASAP. No microSD card is included as the BBB has onboard flash storage - and no SD card loading is required to get started. Please note the PCB may say rev B, that's normal! The rev C has more memory which did not affect the PCB revision code.
- Processor: Sitara AM3358BZCZ100 1GHz, 2000 MIPS
- Graphics Engine: SGX530 3D, 20M Polygons/S
- SDRAM Memory: 512MB DDR3L 606MHZ
- Onboard Flash: 4GB, 8bit Embedded MMC
- PMIC: TPS65217C PMIC regulator and one additional LDO.
- Debug Support: Optional Onboard 20-pin CTI JTAG, Serial Header
- Power Source: miniUSB USB or DC Jack, 5VDC External Via Expansion Header
- PCB: 86.44mm x 54.54mm / 3.4” x 2.15” 6 layers
- 88.98mm x 54.54mm x 15.41mm / 3.5" x 2.15" x 0.6"
- Indicators 1-Power, 2-Ethernet, 4-User Controllable LEDs
- HiSpeed USB 2.0 Client Port: Access to USB0, Client mode via miniUSB
- HiSpeed USB 2.0 Host Port Access to USB1, Type A Socket, 500mA LS/FS/HS
- Serial Port UART0 access via 6 pin 3.3V TTL Header. Header is populated
- Ethernet 10/100, RJ45
- SD/MMC Connector microSD , 3.3V
- User Input: Reset Button, Boot Button, Power Button
- Video Out: 16b HDMI, 1280x1024 (MAX), 1024x768,1280x720,1440x900 w/EDID Support
- Audio Via HDMI Interface, Stereo
- Expansion Connectors:
- Power 5V, 3.3V , VDD_ADC(1.8V)
- 3.3V I/O on all signals
- McASP0, SPI1, I2C, GPIO(65), LCD, GPMC, MMC1, MMC2, 7 AIN(1.8V MAX), 4 Timers, 3 Serial Ports, CAN0, EHRPWM(0,2),XDMA Interrupt, Power button, Expansion Board ID (Up to 4 can be stacked)
- Weight 40.55g / 1.43oz