Some thoughts:
> 3. Add another SY6280 current limiter for +5V and connect to VGA pin
> 9 (VESA power). Seems to be some difference of opinion on current
> requirements: 50mA[2], 300mA-1000mA[1]. If we were to limit at
> 300mA, it should easily supply the needs of I2C serial EEPROM and
> probably
On Jul 17, 2018, at 19:04, Pičugins Arsenijs wrote:
>> 2. Implement circuit in attached
>> diagram[EOMA_I2C_circuit_sketch_small.png] ...
>
> Did not get your attachments. I'm thinking they were scrubbed
> by the ML software? Maybe post a link - imgur/other sharing
> service?
>
> Arsenijs
>
>
On Tue, Jul 17, 2018 at 7:43 PM, Luke Kenneth Casson Leighton
wrote:
>
> Richard can you please edit community_ideas micrideksoo oage rhuombustech
> maintain all of this there revisioons to revisions of email knoen to be
not
> a sustainable way to track detailed important information
Luke,
> 2. Implement circuit in attached
> diagram[EOMA_I2C_circuit_sketch_small.png] ...
Did not get your attachments. I'm thinking they were scrubbed
by the ML software? Maybe post a link - imgur/other sharing
service?
Arsenijs
___
arm-netbook mailing
Here are links to the files:
ftp://lists.phcomp.co.uk/files/arm-netbook/EOMA_I2C_VESA_calc.pdf
ftp://lists.phcomp.co.uk/files/arm-netbook/EOMA_I2C_circuit_small.png
These are evidently by default good till 18 August 2018. If they are still
cogent to the discussion I will try to keep them around
Richard can you please edit community_ideas micrideksoo oage rhuombustech
maintain all of this there revisioons to revisions of email knoen to be not
a sustainable way to track detailed important information
On Wednesday, July 18, 2018, Richard Wilbur
wrote:
> Addendum
>
> Why?
> 1. Make VESA
On Tue, Jul 17, 2018 at 7:04 PM, Pičugins Arsenijs
wrote:
>
> > 2. Implement circuit in attached
> > diagram[EOMA_I2C_circuit_sketch_small.png] ...
>
> Did not get your attachments. I'm thinking they were scrubbed
> by the ML software? Maybe post a link - imgur/other sharing
> service?
It is
On Tue, Jul 17, 2018 at 7:02 AM, Pičugins Arsenijs
wrote:
>
> Some thoughts:
>
> > 3. Add another SY6280 current limiter for +5V and connect to VGA pin
> > 9 (VESA power). Seems to be some difference of opinion on current
> > requirements: 50mA[2], 300mA-1000mA[1]. If we were to limit at
> >
Addendum
Why?
1. Make VESA DDC lines conform to VESA DDC spec. (VDD=5.0V, I2C
signalling)[1]
2. Respect VREFTTL in the range of 3.3-5.0V on EOMA side of VESA DDC lines.
3. Respect EOMA requirement that all lines except EOMA I2C be tri-stated
at power on.
How?
1. Connect pull-up resistors for
