7th page uploaded in KiCAD
https://hellosemi.com/KiCAD_Linux_Boards.html
(Still only find the BPi version so far)
Thinking first board will be a minimalist square board with SoC 2GB DRAM serial uSD HDMI PMIC SATA USB flash just to get it to boot.
--- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68
On Mon, Apr 9, 2018 at 3:34 PM, joem research@enemygadgets.com wrote:
7th page uploaded in KiCAD
fantastic!
(Still only find the BPi version so far)
Thinking first board will be a minimalist square board with SoC 2GB DRAM serial uSD HDMI PMIC SATA USB flash just to get it to boot.
sounds eminently sensible.
l.
All 11 page KiCAD conversion complete and uploaded. Now moving to layout - done up Allwinner R40 BGA and 8GB eMMC BGA footprints.
https://hellosemi.com/KiCAD_Linux_Boards.html
Thinking first board will be a minimalist square board with SoC 2GB DRAM serial uSD HDMI PMIC SATA USB flash just to get it to boot.
sounds eminently sensible.
On Thu, Apr 12, 2018 at 12:30 AM, joem research@enemygadgets.com wrote:
All 11 page KiCAD conversion complete and uploaded. Now moving to layout - done up Allwinner R40 BGA and 8GB eMMC BGA footprints.
very cool!
Now finished footprints for all essential items - Ethernet, SMD version of SATA, uSD card, DDR, HDMI, AP6212 WIFI, AXP221s PMIC, eMMC, R40 CPU. With these anyone should be able to lay out their own boards.
All 11 page KiCAD conversion complete and uploaded. Now moving to layout - done up Allwinner R40 BGA and 8GB eMMC BGA footprints.
very cool!
On Fri, Apr 13, 2018 at 12:08 AM, joem research@enemygadgets.com wrote:
Now finished footprints for all essential items - Ethernet, SMD version of SATA, uSD card, DDR, HDMI, AP6212 WIFI, AXP221s PMIC, eMMC, R40 CPU. With these anyone should be able to lay out their own boards.
superb. i might point someone i know at these, he may be interested to use them.
l.
On 2018-04-13 00:46, Luke Kenneth Casson Leighton wrote:
superb. i might point someone i know at these, he may be interested to use them.
You are welcome :)
Now I customize the design into a new minimalist R40 server board: https://www.hellosemi.com/KiCAD_Server_Board.html
This board has 2GB RAM, gbit ethernet, SATA, camera, MIPI display, HDMI, uSD, 8GB flash, USB OTG, USB 2.0 x 2. Removed are wifi/bluetooth, audio, mic, Pi connector, IR module. The 8GB flash required a lot of rework as the BGA pinouts were incorrect in the original drawing. Also I had duplicate annotation and missing annotations in my previous KiCAD. Added more footprints where they did not exist from KiCAD libraries. All footprints were copied to local relative directory because switching between different PCs is a total pain at this moment with KiCAD. After all that work, the netlist import works without errors, and viewing 3D works without errors :) Anyone can lay it out now. I'm guessing this PCB will come out with a BOM cost less than $20.
For some reason Allwinner R40 SATA read seems fast but write is very sloooow. Anyone know?
--- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68
On Mon, Apr 16, 2018 at 6:50 PM, joem research@enemygadgets.com wrote:
On 2018-04-13 00:46, Luke Kenneth Casson Leighton wrote:
superb. i might point someone i know at these, he may be interested to use them.
You are welcome :)
Now I customize the design into a new minimalist R40 server board: https://www.hellosemi.com/KiCAD_Server_Board.html
This board has 2GB RAM, gbit ethernet, SATA, camera, MIPI display, HDMI,
is ir 4x DDR3 x8? those are getting stupidly hard to get hold of however i found a company in taiwan that can make some.
l.
is ir 4x DDR3 x8? those are getting stupidly hard to get hold of however i found a company in taiwan that can make some.
SK Hynix H5TQ4G83AFR = 512M x 8
I think this week layout finish and I send it off to be made. If the RAM cannot be sourced, then get it laid out with new RAM in 'no time' because there is KiCAD drawings available. All these improvements to KiCAD has made it thunderingly fast. A lot of the work actually got done in text editor and spread sheet csv files believe it or not ;) That is because the entire data is in text files instead of binary files.
I want to add a $1 STduino chip to gain control of the server at pre-boot stage and post-boot so when it goes into an array, I can talk to the board through RS232 link to the stduino to tell it to reboot the board, or shut it down in a server array without adding any more complexity to the board. I might do that before sending it off to get it made. Adds 1 to 2 days delay because I got all that in KiCAD already :)
On Mon, Apr 16, 2018 at 7:32 PM, joem research@enemygadgets.com wrote:
is ir 4x DDR3 x8? those are getting stupidly hard to get hold of however i found a company in taiwan that can make some.
SK Hynix H5TQ4G83AFR = 512M x 8
27 RMB that means EIGHTEEN dollars just in RAM ICs. that's if you can get hold of them.
I want to add a $1 STduino chip to gain control of the server at pre-boot stage and post-boot so when it goes into an array,
STM8S003 is ridiculously cheap and really awesome. STM32F030 is also likewise cheap.
l.
On 2018-04-16 19:39, Luke Kenneth Casson Leighton wrote:
On Mon, Apr 16, 2018 at 7:32 PM, joem research@enemygadgets.com wrote: is ir 4x DDR3 x8? those are getting stupidly hard to get hold of however i found a company in taiwan that can make some. SK Hynix H5TQ4G83AFR = 512M x 8
27 RMB that means EIGHTEEN dollars just in RAM ICs. that's if you can get hold of them.
First get it to boot, then ditch for cheaper RAM - someone selling for $14 (probably fake). Thanks for head up.
I want to add a $1 STduino chip to gain control of the server at pre-boot stage and post-boot so when it goes into an array,
STM8S003 is ridiculously cheap and really awesome. STM32F030 is also likewise cheap.
STM32F103C8T6 or GD32F103C8T6 - has USB so skip having to buy a separate USB serial
Twitter handle - https://twitter.com/HelloHypercube
On Mon, Apr 16, 2018 at 8:04 PM, joem research@enemygadgets.com wrote:
On 2018-04-16 19:39, Luke Kenneth Casson Leighton wrote:
On Mon, Apr 16, 2018 at 7:32 PM, joem research@enemygadgets.com wrote: is ir 4x DDR3 x8? those are getting stupidly hard to get hold of however i found a company in taiwan that can make some. SK Hynix H5TQ4G83AFR = 512M x 8
27 RMB that means EIGHTEEN dollars just in RAM ICs. that's if you can get hold of them.
First get it to boot, then ditch for cheaper RAM - someone selling for $14 (probably fake).
posssibbllyyy.... you might get lucky, but have someone actually from china buy them so they have "legal recourse".
Thanks for head up.
no problem.
I want to add a $1 STduino chip to gain control of the server at pre-boot stage and post-boot so when it goes into an array,
STM8S003 is ridiculously cheap and really awesome. STM32F030 is also likewise cheap.
STM32F103C8T6 or GD32F103C8T6 - has USB so skip having to buy a separate USB serial
oh of course. then STM32F070 / 072 - they're cheaper than the 103. i think
l.
SK Hynix H5TQ4G83AFR = 512M x 8 27 RMB that means EIGHTEEN dollars just in RAM ICs. that's if you can get hold of them.
RAM continues to be a problem to source.
KiCAD version of R40 server board on a go slow pace at the moment - https://hellosemi.com/hypercube/pmwiki.php?n=Main.KiCADServerBoard%0F (Some errors have left the power lines crossed in multiple places.) Also can't seem to raise Allwinner (no replies). Probably manage without tech support for now.
In the mean time, been doing other KiCAD boards. A blue pill (ST clone of Atmega Arduino) - https://hellosemi.com/hypercube/pmwiki.php?n=Main.HypercubeBluePillSTDuinoBo...
There is some infographic here about how to make intelligent Lithium battery packs for autonomous systems - https://hellosemi.com/hypercube/pmwiki.php?n=Main.HypercubeLithiumPrototypin...
And some info here about R40 boards for modularized AI + vision recognition and getting it to do some work with Arduino to do basic IoT work with it - https://hellosemi.com/hypercube/pmwiki.php?n=Main.AIBoards%0F
All the other open source boards (or soon to be) https://hellosemi.com/hypercube/pmwiki.php?n=Main.OpenSourceBoards%0F
On Sunday, May 13, 2018, joem research@enemygadgets.com wrote:
SK Hynix H5TQ4G83AFR = 512M x 8 27 RMB that means EIGHTEEN dollars just in RAM ICs. that's if you can get hold of them.
RAM continues to be a problem to source.
I did tell / warn you.... :)
KiCAD version of R40 server board on a go slow pace at the moment - https://hellosemi.com/hypercube/pmwiki.php?n=Main.KiCADServerBoard (Some errors have left the power lines crossed in multiple places.) Also can't seem to raise Allwinner (no replies). Probably manage without tech support for now.
Yehh thats not a surprise, are you placing an order for 100k units? Then they might reply
In the mean time, been doing other KiCAD boards. A blue pill (ST clone of Atmega Arduino) - https://hellosemi.com/hypercube/pmwiki.php?n=Main. HypercubeBluePillSTDuinoBoard
You seen the board i did , right? Stl470? Akso can fund st cimmunity link for you they should be a long way along by now. Small form factor v cgallengung to get cost down.
2 layer st arduino clones are really tough to do
There is some infographic here about how to make intelligent Lithium battery packs for autonomous systems - https://hellosemi.com/hypercube/pmwiki.php?n=Main. HypercubeLithiumPrototypingBoard
And some info here about R40 boards for modularized AI + vision recognition and getting it to do some work with Arduino to do basic IoT work with it - https://hellosemi.com/hypercube/pmwiki.php?n=Main.AIBoards
All the other open source boards (or soon to be) https://hellosemi.com/hypercube/pmwiki.php?n=Main.OpenSourceBoards
--
Thx joe
JoeM
Twitter - https://twitter.com/HelloHypercube _______________________________________________ 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 2018-05-13 22:07, Luke Kenneth Casson Leighton wrote:
On Sunday, May 13, 2018, joem research@enemygadgets.com wrote:
SK Hynix H5TQ4G83AFR = 512M x 8 27 RMB that means EIGHTEEN dollars just in RAM ICs. that's if you can get hold of them.
RAM continues to be a problem to source.
I did tell / warn you.... :)
Hmmm... wonder what Allwinner and everyone dependent on DDR3 is going to do / need to do with their working CPUs that are going to get supported for the next 10 years or so.
KiCAD version of R40 server board on a go slow pace at the moment - https://hellosemi.com/hypercube/pmwiki.php?n=Main.KiCADServerBoard (Some errors have left the power lines crossed in multiple places.) Also can't seem to raise Allwinner (no replies). Probably manage without tech support for now.
Yehh thats not a surprise, are you placing an order for 100k units? Then they might reply
Softbank has now a similar all customers are too small policy - they invest only in No.1 startups now. No.2 takes such a long time to become No.1 they can't be bothered. So they would never have invested in Google, Amazon, Microsoft, Alibaba, Apple etc when they were operating out of their garages then I assume.
So you know Softbank acquired ARM. Now they are thinking of selling to pay for all the debts piling up around them. Complete disaster for ARM and everyone else I can only assume. But China has secured a position against ARM failure by insisting on forming a joint venture unit in China with 51% control. Good thing they did! :)
What Allwinner should do is have two teams - one for small customers and one for large. Otherwise the pressure to go elsewhere or make own chips grows and grows. Its not that expensive now - MOSIS - https://www.mosis.com/
In the mean time, been doing other KiCAD boards. A blue pill (ST clone of Atmega Arduino) - https://hellosemi.com/hypercube/pmwiki.php?n=Main. HypercubeBluePillSTDuinoBoard
You seen the board i did , right? Stl470?
No seen it yet - I did a google search - can't find it.
Akso can fund st cimmunity link for you they should be a long way along by now. Small form factor v cgallengung to get cost down.
?
2 layer st arduino clones are really tough to do
The ones I do are not verbatim clones so the pin mappings are completely different and easier on layout. The pins go to FPC which has resistor patch panel that allows any CPU pin to be patched manually to any FPC pin :) The peripheral boards remain the same pin always and has no patch panel. This means when boards blow, throw away faulty peripheral board and replace with new one using FPC. If CPU board blows, then repatch a new board and its good to go with FPC connectors to connect to peripheral boards.
JoeM Twitter - https://twitter.com/HelloHypercube
SK Hynix H5TQ4G83AFR = 512M x 8 27 RMB that means EIGHTEEN dollars just in RAM ICs. that's if you can get hold of them.
RAM continues to be a problem to source.
I did tell / warn you.... :)
Just heard cryptocurrency mining is going down the tube and it may just crash memory market with it - so price bubble may burst by end of year.
JoeM Twitter - https://twitter.com/HelloHypercube
--- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68
On Tue, May 22, 2018 at 9:31 AM, joem research@enemygadgets.com wrote:
SK Hynix H5TQ4G83AFR = 512M x 8 27 RMB that means EIGHTEEN dollars just in RAM ICs. that's if you can get hold of them.
RAM continues to be a problem to source.
I did tell / warn you.... :)
Just heard cryptocurrency mining is going down the tube
yyyeah that's unlikely to happen... or, more to the point, whomever you heard it from is likely to be trying to create a "pump-and-dump" social-engineering scam. sell first, scare everyone, then buy low.
and it may just crash memory market with it - so price bubble may burst by end of year.
hooray!! .... *thinks*.... GDDR5 is (i believe) what's commonly used in graphics cards.... you definitely don't want to be using DDR3 or DDR4 for cryptomining platforms with standard GPUs in them.
l.
On Monday, May 14, 2018, joem research@enemygadgets.com wrote:
On 2018-05-13 22:07, Luke Kenneth Casson Leighton wrote:
In the mean time, been doing other KiCAD boards.
A blue pill (ST clone of Atmega Arduino) - https://hellosemi.com/hypercube/pmwiki.php?n=Main. HypercubeBluePillSTDuinoBoard
You seen the board i did , right? Stl470?
No seen it yet - I did a google search - can't find it.
Akso can fund st cimmunity link
for you they should be a long way along by now. Small form factor v cgallengung to get cost down.
?
arm-netbook@lists.phcomp.co.uk
-
joem -
Luke Kenneth Casson Leighton