On Mon, 23 Feb 2009, Eric H. Johnson wrote: > Date: Mon, 23 Feb 2009 13:21:38 -0500 > From: Eric H. Johnson <[email protected]> > Reply-To: "Enhanced Machine Controller (EMC)" > <[email protected]> > To: "'Enhanced Machine Controller (EMC)'" <[email protected]> > Subject: [Emc-users] Mesa 7i43 and external power > > Hi all, > > I am sure I just missed something simple here, but I am having the CPU board > refusing to boot when I connect an external 5V supply. For purposes of > testing I am simply getting the 5V from the PS for the motherboard.
I would check the power supply wiring Note the 7I43 power connector is _not_ a floppy connector It is pinned out: 1 5V 2 GND 3 GND 4 5V > > I have moved jumper W6 to the down position, W2 to the up position, and > disconnected the USB cable. > > With W6 in the up position and the USB cable connected, everything (at least > as much as I have hooked up) is fine. But as I understand it, in this > configuration I am limited to about 150 mA, which will not be sufficient for > the remaining I/O. You probably have about 300 mA free with the HostMot2 configurations as it does not have too many things running in the FPGA when not accessed > > Regards, > Eric > > > > ------------------------------------------------------------------------------ > Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA > -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise > -Strategies to boost innovation and cut costs with open source participation > -Receive a $600 discount off the registration fee with the source code: SFAD > http://p.sf.net/sfu/XcvMzF8H > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
