Re: [Arm-netbook] Microdesktop v1.7

i added it here http://rhombus-tech.net/community_ideas/micro_desktop/mdesktop_i2c.jpg could you link that on the page http://rhombus-tech.net/community_ideas/micro_desktop/ --- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68 On Wed, Jul 18, 2018 at 1:52 AM, Richard

Re: [Arm-netbook] Microdesktop v1.7

Here's the circuit diagram-scribbled on a piece of paper with pencil. Photo shot with phone camera and cropped and scaled down in GIMP. If it needs to be larger to be readable, I still have the original so can rescale as needed. ___ arm-netbook mailing

Re: [Arm-netbook] Microdesktop v1.7

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,

Re: [Arm-netbook] Microdesktop v1.7

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

Re: [Arm-netbook] Microdesktop v1.7

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

Re: [Arm-netbook] Microdesktop v1.7

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

Re: [Arm-netbook] Microdesktop v1.7

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 > >

Re: [Arm-netbook] Microdesktop v1.7

> 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

Re: [Arm-netbook] Microdesktop v1.7

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

Re: [Arm-netbook] Microdesktop v1.7

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 > >

Re: [Arm-netbook] Microdesktop v1.7

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

Re: [Arm-netbook] Microdesktop v1.7

On Jul 3, 2018, at 03:19, Luke Kenneth Casson Leighton wrote: > >> On Tue, Jul 3, 2018 at 1:57 AM, Richard Wilbur >> wrote: >> >> By the way, what is the status of the microdesktop >> design v1.7? Have you already invested in parts (specifically >> the 2x10 header) and/or circuit boards? > >

Re: [Arm-netbook] Microdesktop v1.7

On Tue, Jul 3, 2018 at 1:57 AM, Richard Wilbur wrote: > By the way, what is the status of the microdesktop > design v1.7? Have you already invested in parts (specifically > the 2x10 header) and/or circuit boards? yep all good. the funds that were transferred to mike 18+ months ago ($60k) are

Re: [Arm-netbook] microdesktop v1.7 arrived, works fine... but...

--- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68 On Tue, Apr 18, 2017 at 10:22 PM, wrote: > On Thu, 6 Apr 2017 06:12:16 +0100 > Luke Kenneth Casson Leighton wrote: >> ok so the story goes like this: >> >> back in august 2016 i got the

Re: [Arm-netbook] microdesktop v1.7 arrived, works fine... but...

On 04/06/2017 07:05 PM, Luke Kenneth Casson Leighton wrote: > --- > crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68 > > > On Thu, Apr 6, 2017 at 5:38 PM, Vincent Legoll > wrote: >>> basic logical reasoning says: remove the NAND IC. >> Yes, stop

Re: [Arm-netbook] microdesktop v1.7 arrived, works fine... but...

--- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68 On Thu, Apr 6, 2017 at 5:38 PM, Vincent Legoll wrote: >> basic logical reasoning says: remove the NAND IC. > > Yes, stop the madness, make it work as-is/as-you-can, > and keep the fancy for V2

Re: [Arm-netbook] microdesktop v1.7 arrived, works fine... but...

--- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68 On Thu, Apr 6, 2017 at 1:38 PM, Joseph Honold wrote: > On 04/06/2017 12:12 AM, Luke Kenneth Casson Leighton wrote: >> now, i _could_ convert to eMMC but it's too much of a major redesign: >> it

Re: [Arm-netbook] microdesktop v1.7 arrived, works fine... but...

On 04/06/2017 12:12 AM, Luke Kenneth Casson Leighton wrote: > now, i _could_ convert to eMMC but it's too much of a major redesign: > it involves disrupting the RGB/TTL tracks, and may require at least > two more rounds of pre-production prototyping... > > ... it's too much: it's too risky... and

Re: [Arm-netbook] microdesktop v1.7 arrived, works fine... but...

On Thu Apr 6 06:12:16 BST 2017, Luke Kenneth Casson Leighton wrote: > ... it's too much: it's too risky... and i'm getting fed up. so. > what i'm going to do instead is: cut the NAND IC entirely, then wire > SDC2 (which is the same pins as the NAND) to the *ON-BOARD* Micro-SD > card slot,