hey luke, I just wanted to put my suggestions on rhombus-tech.net but unfortunately i couldn't figure out how to add a new subpage. to keep everything tidy and clear this would be really helpful …
i also updated the specification for the pcb connectors, there was something wrong between pcb3 and pcb1: sys-v was 4.2v directly from the battery but it is 5v and the first pin is ground instead of usb_otg_5v0 i will update the other specifications as well as i walk through the other schematics … Julius Lehmann Am 12.02.2017 um 18:58 schrieb Luke Kenneth Casson Leighton: > > > --- > crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68 > > On Sun, Feb 12, 2017 at 2:30 PM, Internet <inter...@devpi.de > <mailto:inter...@devpi.de>> wrote: > > First look at PCB3 is finished, it is of course possible I am > missing something. Anyways, following caught my eyes: > > 1. the usb otg charger ic has two capacitors between regn and > ground, total value: 11.5uF, datasheet says 1uF. probably no > issue though > 2. 10k thermistor for the otg charger is connected to voltage > divider and through another thermistor to bat-v (fuel guage), > datasheet says it should be connected to ground (i am not to > sure about the guage though, reference application is pretty > chaotic and complex) > 3. status leds should be connected to sys-v (nothing to do if > dvcc = sys-v) > 4. EOMA68-5V0 is not connected to anything, this results in an > unpowered card on pcb1 (which is bad); should probably be > connected to vcc-5v0) > 5. level shifter is completely unnecessary because lcd-vcc = > vrefttl = 3v3; connect 10k pullup resistors to vrefttl and add > pullup for chg_irq to vrefttl > > TI bat IC is 1.8v.. wasn't happy with that. > > > 1. because eoma68-i2c is not used on this pcb remove pullups > > > _great_. encourages me to take a look and check. > > > I hope this helps and if I misunderstood something, please let me > know. The fuel guage circuit is more complex than expected, I let > you know if there is an issue. > > Do you want me to put all this on rhombus-tech.net > <http://rhombus-tech.net>? If so, could you give me some > instructions where and how to put it? > > > http://rhombus-tech.net/community_ideas/laptop_15in/pcb2/ then just > work it out, put whatever you feel is appropriate and i'll review it > and move / adjust if necessary. > > > Additionally, to edit the pages I need some kind of account > creation password … > > > ah! sorry, i added that recently after there were attacks on the page > -- it's "passwordreqd" > > > Julius Lehmann > > > On 11.02.2017 15:00, Luke Kenneth Casson Leighton wrote: >> >> >> --- >> crowd-funded eco-conscious hardware: >> https://www.crowdsupply.com/eoma68 >> >> <http://t224.mjt.lu/lnk/AEMAHqt4STUAAAAAAAAAAGbE2wkAASHlFNUAAAAAAAZHgABYoHFzFqkoe5j4S8W7hrvGQMA-BwAGAjk/1/MkNnISYr4-hglOBjM6YUqw/aHR0cHM6Ly93d3cuY3Jvd2RzdXBwbHkuY29tL2VvbWE2OA> >> >> On Sat, Feb 11, 2017 at 1:33 PM, Internet <inter...@devpi.de >> <mailto:inter...@devpi.de>> wrote: >> >> You are absolutely right. Putting comments separately is the >> best thing to do. I just found the edit button on >> rhombus-tech.net >> >> <http://t224.mjt.lu/lnk/AEMAHqt4STUAAAAAAAAAAGbE2wkAASHlFNUAAAAAAAZHgABYoHFzFqkoe5j4S8W7hrvGQMA-BwAGAjk/2/0gqbLOpYPVPZzmn-W6fIhw/aHR0cDovL3QyMjQubWp0Lmx1L2xuay9BRHNBQUdYeHRoTUFBQUFBQUFBQUFHYkUyd2tBQVNIbEZOVUFBQUFBQUFaSGdBQllueExBV2RocTRJTjNRZWVoRmRQdHN5eHZvd0FHQWprLzEvOXZlenUwMUlMT2hkSExDTENHVTA2QS9hSFIwY0RvdkwzSm9iMjFpZFhNdGRHVmphQzV1WlhR> >> ;), this should definitely make things easier ... >> >> >> yay, magic. also stops duplication and AOL-style me-too >> postings. if anyone remembers the AOL bbs... >> >> l. >> >> >> _______________________________________________ >> arm-netbook mailing list arm-netbook@lists.phcomp.co.uk >> >> <mailto:arm-netbook@lists.phcomp.co.uk>http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook >> >> <http://t224.mjt.lu/lnk/AEMAHqt4STUAAAAAAAAAAGbE2wkAASHlFNUAAAAAAAZHgABYoHFzFqkoe5j4S8W7hrvGQMA-BwAGAjk/3/QzsVz1TKCdXr54efyTuzyg/aHR0cDovL2xpc3RzLnBoY29tcC5jby51ay9tYWlsbWFuL2xpc3RpbmZvL2FybS1uZXRib29r> >> Send large attachments to arm-netb...@files.phcomp.co.uk >> <mailto:arm-netb...@files.phcomp.co.uk> > _______________________________________________ arm-netbook > mailing list arm-netbook@lists.phcomp.co.uk > <mailto:arm-netbook@lists.phcomp.co.uk> > http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook > <http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook> Send > large attachments to arm-netb...@files.phcomp.co.uk > <mailto:arm-netb...@files.phcomp.co.uk> > > _______________________________________________ > arm-netbook mailing list arm-netbook@lists.phcomp.co.uk > http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook > Send large attachments to arm-netb...@files.phcomp.co.uk
_______________________________________________ arm-netbook mailing list arm-netbook@lists.phcomp.co.uk http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook Send large attachments to arm-netb...@files.phcomp.co.uk
