pre-assembly explanation and walk-through videos now available: http://rhombus-tech.net/community_ideas/laptop_15in/news/
this is all prior to first power-up. i'm honestly slightly nervous about powering the boards up when they're wired together like this, because the slightest short-circuit or incorrect cable and it'll damage things. although i do have some revision 1.0 EOMA68-A20 CPU Cards left, i'd rather no more were damaged!
still, i've tested them all individually - it should be fine.
l.
good luck!!!
On Sun, Jan 3, 2016 at 3:16 PM, Luke Kenneth Casson Leighton lkcl@lkcl.net wrote:
pre-assembly explanation and walk-through videos now available: http://rhombus-tech.net/community_ideas/laptop_15in/news/
this is all prior to first power-up. i'm honestly slightly nervous about powering the boards up when they're wired together like this, because the slightest short-circuit or incorrect cable and it'll damage things. although i do have some revision 1.0 EOMA68-A20 CPU Cards left, i'd rather no more were damaged!
still, i've tested them all individually - it should be fine.
l.
arm-netbook mailing list arm-netbook@lists.phcomp.co.uk http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook Send large attachments to arm-netbook@files.phcomp.co.uk
On Sun, Jan 3, 2016 at 2:44 PM, Hrvoje Lasic lasich@gmail.com wrote:
good luck!!!
shorted the usb-otg 5v rail accidentally already, have to power the CPU Card from VBUS instead... no matter, i have to replace the LTC4155 due to misrepresentation of its capabilities, with a bq24196 from TI anyway....
l.
speaking new PCB, I found done Chinese company for pcb samples. price looks very ok to me. what do you think:
On Sun, Jan 3, 2016 at 3:53 PM, Luke Kenneth Casson Leighton lkcl@lkcl.net wrote:
On Sun, Jan 3, 2016 at 2:44 PM, Hrvoje Lasic lasich@gmail.com wrote:
good luck!!!
shorted the usb-otg 5v rail accidentally already, have to power the CPU Card from VBUS instead... no matter, i have to replace the LTC4155 due to misrepresentation of its capabilities, with a bq24196 from TI anyway....
l.
arm-netbook mailing list arm-netbook@lists.phcomp.co.uk http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook Send large attachments to arm-netbook@files.phcomp.co.uk
On Sun, Jan 3, 2016 at 4:28 PM, Hrvoje Lasic lasich@gmail.com wrote:
speaking new PCB, I found done Chinese company for pcb samples. price looks very ok to me. what do you think:
that is extraordinarily cheap, very good. i also checked the cost that they'd be able to do EOMA68 boards at, and it's 60% of anything else i've previously been quoted: $361 instead of $600 for qty 5, and that's a 1.2mm PCB. a 1.6mm 110x90 2-layer PCB with 6-6 mill track/clearance and 0.25mm min drill size was $38 for qty 5 which is about 30% of what eurocircuits quote.
bear in mind that you would still have to pay tax, duty, tax-on-tax, tax-on-duty and tax-on-tax-on-duty... oh, and shipping. and tax-on-shipping. and tax-on-duty-on-tax-on-shipping. all of which could well end up adding almost 80%+ to the cost.
time-wise they look pretty fast, eurocircuits do a typical 7-day turnaround (these guys are 3), shipping from eurocircuits is often 2-3 days (and is only once a week for the 7-day production), so actually even though shipping would be with DHL international from china, you might actually end up getting it faster.
weird, huh? :)
l.
arm-netbook@lists.phcomp.co.uk
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Hrvoje Lasic -
Luke Kenneth Casson Leighton