Increase potential amp draw on BeagleboneBlack with mini usb splitter cable?

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1

Is it possible for the BeagleboneBlack to draw more amps and provide more stability to peripherals connected on the BeagleboneBlack regular usb A port if one were to power the board using the mini usb port off a usb splitter cable?

Example: http://images.monoprice.com/productlargeimages/56201.jpg

2

Yes. As long as the SW sets the PMIC to allow it.

Gerald

3

I saw this on another forum. Is this what you mean?

The latest bootloader tarball available on the installation page has a fix in the uEnv.txt for allowing >500mA through the mini-USB port.

You can also add this to your current uEnv.txt by adding the following command to uenvcmd:

[](http://archlinuxarm.org/forum/viewtopic.php?f=28&t=5628#)
` ` i2c mw 0x24 1 0x3e ` `

To make it look like this:

[](http://archlinuxarm.org/forum/viewtopic.php?f=28&t=5628#)
` ` uenvcmd=run findfdt; if test $board_name = A335BNLT; then i2c mw 0x24 1 0x3e; setenv mmcde..... ` `

However, because we know it can draw over 500mA, we recommend using a USB charger that can supply more than this as opposed to a port on a computer.

4

Yes. My expectation is that this is already handled in the Angstrom image we use, but I have not tested it lately to see if it got dropped or if it is supported in the UBoot used by other distributions…

Gerald