[Arm-netbook] EOMA68-A20, MD 1.7 severe Power Problems

Pablo Rath pablo at parobalth.org
Tue Aug 11 09:31:02 BST 2020


On Tue, Aug 11, 2020 at 10:07:14AM +0200, Pablo Rath wrote:
> On Sun, Jul 26, 2020 at 10:29:07PM +0100, Luke Kenneth Casson Leighton wrote:
> > On Sunday, July 26, 2020, Pablo Rath <pablo at parobalth.org> wrote:
> > 
> > 
> > >
> > > I have a power supply from a Huawei Tablet (Output 5V, 2A) and one from
> > > an old Ipad Mini (Output 5V, 1A) both with a wall plug and a female USB
> > > socket.
> > 
> > 
> > ok you need... a male to male cable.
> > 
> > 
> > > Can I use one of them with a standard USB 2.0 USB A to USB A (male to
> > > male) cable?
> > 
> > 
> > yes that's the one.  usually used on laptop fan bases.
> > 
> 
> Bought and tried the cable but I have no working UART. 
> So far I have tried both USB-ports on the Micro Desktop, powering with
> the USB-port of my laptop and with the power supply (Output 5V, 2A). 
> I think that the cable is working because it is new and it can load my
> smartphone (with an additional USB-OTG female USB to Micro USB adapter). 
> Is there anything else I can try?
> It is frustrating. Without UART connection I don't know if anything
> happens at all when connecting the USB cable to the Micro Desktop.
> 
Sorry, forgot to add that I tested my USB TTl to serial adapter with
another arm-board and confirmed it working.

Pablo



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