The tell the internal boot ROM where to find the code to load. It is
described in the System Reference Manual for the board. Being set wrong due
to interference with the boot pins, the board will never run.
Gerald
On Wed, Jan 15, 2014 at 4:33 AM, Satz Klauer satzkla...@googlemail.comwrote:
OK, just to verify that: when I use these pins for something different
and set an input signal to them only when SYS_RESETn is HIGH,
everything is fine and the board will boot!?
On Wed, Jan 15, 2014 at 2:47 PM, Gerald Coley ger...@beagleboard.org wrote:
The tell the internal boot ROM where to
In my experimentations, you can use the SYSBOOT muxed pins without problem
as long as you just let them float during powerup
On Wednesday, January 15, 2014 9:39:30 AM UTC-5, Satz Klauer wrote:
OK, just to verify that: when I use these pins for something different
and set an input signal
The SYSBOOT pins are sampled on the rising edge of the POR signal. Your SW
after the fact has no affect. Your HW before the fact, does.
Gerald
On Wed, Jan 15, 2014 at 8:42 AM, Dennis McLeod umo...@gmail.com wrote:
In my experimentations, you can use the SYSBOOT muxed pins without problem
as
And, you shouldn't rely on the pull up/down pins that are there now since
they could change with the next beaglebone (as they did between the black
and white). You can make them high impedance at boot by using something
like a bilateral switch enabled with 3V3_EXP.
On Tuesday, January 14, 2014
So what happens if a cape wants to use the GPIOs that are also HDMI
signals?
In my case, I am toying with a cape that uses 53 GPIOs.. I had hoped that
it's eeprom could indicate that I'm using P8_26 through P8_46 (among
others) and I don't intend to have any HDMI going on.
Is that not
Disable the HDMI interface.
http://www.elinux.org/Beagleboard:BeagleBone_Black_FAQ
Gerald
On Mon, Jan 13, 2014 at 1:18 PM, Dennis McLeod umo...@gmail.com wrote:
So what happens if a cape wants to use the GPIOs that are also HDMI
signals?
In my case, I am toying with a cape that uses 53
On 1/13/2014 1:18 PM, Dennis McLeod wrote:
So what happens if a cape wants to use the GPIOs that are also HDMI
signals?
In my case, I am toying with a cape that uses 53 GPIOs.. I had hoped that
it's eeprom could indicate that I'm using P8_26 through P8_46 (among
others) and I don't intend
There are no pins on the expansion header that are connected to the SD card
connector. LCD and eMMC, yes. The information is found in the System
Reference Manual for the board.
http://elinux.org/Beagleboard:BeagleBoneBlack
Gerald
On Sat, Dec 21, 2013 at 2:45 AM, Satz Klauer
Hi,
I already know the pinout-listing of the BeagleBone Black but this
does not seem to solve my problem. Depending on the choosen
pin-mux-mode the eMMC signals can appear on different pins on P8/P9.
So I need to know the real wiring, means which pins on P8/P9 are
electrically connected to CPU
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