Strictly speaking it can blow up you RPi with this cable if you aren’t careful, but in the case of the BBB, there is no safe pin to connect it you must leave it unconnected. The drawback of the PL2303 is the red wire, this carries +5v from the USB port and can blow the arse out of your BBB. Irrespective all the cables use the Prolific Technology PL2303 chipset. You can even make your own by cutting the ends of old Nokia DKU-5 cables. I got my first one from Adafruit, but I’ve since received a few more as part of other dev board kits. This cable is very common if you’ve used the Raspberry Pi.
The second method is similar to the previous, but this time using a Prolific Technologies PL2303 USB to Serial cable. Method number two, Prolific PL2303 USB to Serial adapter This is the no no wire This means you don’t have to worry about Vcc on pin 3 of the FTDI adapter as the pin on the BBB is not connected. Simply put, although the male header on the BBB matches the FTDI adapter, only pins 1, 4 and 5 are actually connected on the board. Normally avoiding the power supply built into the FTDI adapter would be a problem, but the designers of the BBB have already thought of this and made it super simple to directly connect the FTDI adapter, or cable, to the BBB. This one can provide power from the USB host at either 3.3 or 5 volt as well as provides breakouts for the other RS232 signals. The FTDI adapter can do more than just level convert between USB and the BBB’s 3.3 volt signals. I got mine from Little Bird Electronics for $16 bucks. If you’ve done any Arduino programming you’ve probably got a slew of these little things in your kit. These come in all shapes and sizes, some built into the USB A plug, others like this one are just the bare board. The first, simplest, and most recommended method of connecting to your BBB is via an FTDI USB to Serial adapter. Method number one, the FTDI USB to Serial adapter. This picture is upside down with respect to the pin numbers, pin 1 is on the right and pin 6 is on the left. The Beaglebone Black serial port is available via the J1 header. The serial pins on your Beaglebone Black J1 serial port header Of the original Beaglebone features that were cut were JTAG and serial over USB. This last point, the lack of a serial port, is the focus of the remainder of this article. Lastly, the processor has been bumped from 720Mhz to 1Ghz, providing you can provide sufficient current. You also get 2gb of eMMc flash onboard, which comes preinstalled with Angstrom Linux. For a freebsd/arm builder, this is very important. Secondly, the new BBB comes with 512mb of RAM onboard, up from the 256mb of its predecessor. Having now owned both I can see the value the original BB offered, it’s a much better integrated package, but newcomers to embedded systems will vote with their wallets. This drive towards a lower price point is clearly a reaction to Arduinos and the Raspberry Pi. At less than $50 bucks AUD in my hand, it offers substantially better value for money than the original BB.
The BBB is a substantial upgrade to the original Beaglebone for a couple of reasons. I’m hoping the BBB will be a better match, faster, and more reliable. 备案序号: 京ICP备05006143 webmaster: page created on 20:38:25, cost 1185367105.3995 ms.I recently purchased a Beaglebone Black (BBB) as a replacement for a Raspberry Pi which was providing the freebsd/arm builder for the Go build dashboard. About URN | Privacy & Legal | Help | Contact us
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