| 00:22.30 | A2Sheds | exactly what I'm trying to avoid with the eoma68 cards |
| 00:43.54 | CIA-46 | rhombus-tech: Szymon master * r1e824882f31e /allwinner_a10/orders/szyku89.mdwn: |
| 00:52.47 | *** join/#arm-netbook rz2k (~rz2k@2a01:4f8:150:1102::1d3) |
| 01:08.56 | *** join/#arm-netbook QingPei1 (~qingpei@123.118.108.7) |
| 01:09.08 | *** join/#arm-netbook hipboi (~hipboi@221.4.213.95) |
| 01:40.45 | CIA-46 | rhombus-tech: bari master * r9853e100016a /gsoc2012/ideas.mdwn: started GSOC 2112 info page |
| 01:52.19 | A2Sheds | http://rhombus-tech.net/gsoc2012/ideas/ |
| 01:55.35 | QingPei1 | cool |
| 02:09.44 | A2Sheds | I still have to send the app in tomorrow am |
| 02:10.05 | QingPei1 | the deadline is? |
| 02:10.22 | A2Sheds | 20 hours, 49 minutes remaining |
| 02:11.55 | QingPei1 | ok, still can catch the time~~ |
| 02:12.02 | A2Sheds | yes |
| 02:29.02 | CIA-46 | rhombus-tech: lkcl master * r8a9e9eabbf5e /: Merge branch 'master' of ssh://git.hands.com/rhombus |
| 02:29.13 | CIA-46 | rhombus-tech: lkcl master * r76436558f27c /presentation.mdwn: add blank presentation page |
| 02:29.16 | CIA-46 | rhombus-tech: lkcl master * r5fee25ba8a4e /presentation.mdwn: add presentation page |
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| 02:48.11 | CIA-46 | rhombus-tech: Baybal master * r7d6bcadea63a /presentation.mdwn: |
| 02:50.33 | CIA-46 | rhombus-tech: Baybal master * refc9acf5558b /presentation.mdwn: |
| 03:05.21 | A2Sheds | lkcl: repo repo repo repo |
| 03:06.56 | A2Sheds | lkcl: or should I start a Googlecode page? |
| 03:17.21 | A2Sheds | http://code.google.com/p/openec-32/ until we find or decide on a new home |
| 06:11.50 | CIA-46 | rhombus-tech: Baybal master * r2b9b6c14f450 /presentation.mdwn: |
| 06:21.39 | CIA-46 | rhombus-tech: Baybal master * rc394b45ab7d1 /presentation.mdwn: |
| 07:33.44 | hno | zenitraM[away], hipboi said the A10 U-Boot has fastboot support. |
| 08:10.07 | CIA-46 | rhombus-tech: hno master * r566df48fa53c /presentation.mdwn: added tips & advice section |
| 08:23.24 | CIA-46 | rhombus-tech: Baybal master * rf6f80c66fb61 /presentation.mdwn: |
| 08:25.31 | CIA-46 | rhombus-tech: Baybal master * rf273e1a767b6 /presentation.mdwn: |
| 08:30.55 | CIA-46 | rhombus-tech: Baybal master * r480d349b2171 /presentation.mdwn: |
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| 08:37.23 | zenitraM | hipboi: you here? |
| 09:02.19 | hipboi | zenitraM: hi |
| 09:03.24 | hipboi | hno: yes, fastboot is the reason why u-boot is used |
| 09:06.07 | zenitraM | hipboi: can i download the firmware image you said from somewhere? |
| 09:06.36 | zenitraM | i suspected a hardware issue because it doesn't make sense that without touching anything it now doesn't even show the boot image :/ |
| 09:26.59 | hipboi | zenitraM: can you insert the sd card on pc? |
| 09:27.07 | zenitraM | yes |
| 09:27.13 | hipboi | the sd card which you write image to it |
| 09:27.25 | hipboi | there is a fat volume |
| 09:27.32 | hipboi | should be some log message |
| 09:29.07 | zenitraM | there's nothing |
| 09:29.12 | zenitraM | just a "dynamic" folder |
| 09:29.37 | hipboi | hmm... |
| 09:29.56 | hipboi | i am downloading the rar from mele |
| 09:30.14 | zenitraM | do you have any different one? |
| 09:30.15 | hipboi | i will take a look at what's inside |
| 09:30.27 | hipboi | it's very very slow |
| 09:30.46 | hipboi | 15KB/s |
| 09:30.51 | zenitraM | mmm i can give you a mirror |
| 09:30.57 | hipboi | ok |
| 09:31.04 | zenitraM | http://dl.dropbox.com/u/255615/a1000.rar |
| 09:31.13 | hipboi | oh..oh... |
| 09:31.23 | hipboi | dropbox is blocked in china.. |
| 09:31.57 | hipboi | i can access it by add the ip in host |
| 09:32.02 | hipboi | with https |
| 09:32.13 | hipboi | but i can not see the file |
| 09:32.27 | hipboi | every time i open the page |
| 09:32.35 | hipboi | no file found on the server.. |
| 09:33.15 | zenitraM | mmm.. |
| 09:33.42 | zenitraM | try with |
| 09:33.44 | zenitraM | http://atomico.itram.es/zenitram/files/a1000.rar |
| 09:34.27 | hipboi | good |
| 09:34.35 | hipboi | about 200KB/s |
| 09:35.01 | hipboi | the limit speed in our office |
| 09:35.18 | zenitraM | it's from my own connection, i have 500KB/s upload :) |
| 09:36.03 | zenitraM | be right back |
| 09:36.36 | hipboi | sorry, zenitraM |
| 09:37.04 | hipboi | zenitraM[away]: i had to go and have dinner |
| 09:42.42 | *** join/#arm-netbook eflatun (~eflatun@46.1.24.130) |
| 09:55.44 | zenitraM | i'm back |
| 09:55.46 | zenitraM | hipboi: ok |
| 09:55.56 | zenitraM | don't worry :) |
| 09:56.05 | hipboi | still here |
| 09:56.18 | hipboi | the dinner time is 18:30 |
| 09:56.23 | zenitraM | ah ok |
| 09:56.26 | hipboi | will be a big meal |
| 09:56.32 | zenitraM | it's 10:56 here |
| 09:56.37 | hipboi | i am unraring the file |
| 09:56.38 | zenitraM | nice :) |
| 09:57.07 | hipboi | i have to go now |
| 09:57.12 | zenitraM | ok |
| 09:57.19 | zenitraM | i'll try later that firmware with my friends mele |
| 09:57.19 | hipboi | i think the rar file is ok |
| 09:57.25 | hipboi | ok |
| 09:57.39 | zenitraM | and will also try to get the serial console |
| 09:57.48 | zenitraM | to see what is happening |
| 10:23.26 | CIA-46 | rhombus-tech: Roland_R master * r85b96db6cf23 /allwinner_a10/orders/gyongytyuk.mdwn: |
| 10:24.21 | CIA-46 | rhombus-tech: Roland_R master * r165d151f5c0f /allwinner_a10/orders/gyongytyuk.mdwn: |
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| 10:34.10 | *** join/#arm-netbook hipboi (~hipboi@117.136.31.190) |
| 10:35.35 | hipboi | zenitraM: hi |
| 10:35.58 | hipboi | on momile irc |
| 10:37.00 | hipboi | you can open the mele box |
| 10:37.10 | zenitraM | hipboi: hi |
| 10:37.16 | zenitraM | i'll do it later, it seems easy to open |
| 10:37.33 | hipboi | yes |
| 10:37.50 | hipboi | and connect the uart |
| 10:38.16 | hipboi | see what's happenning inside |
| 10:38.35 | zenitraM | the thing is.. when i inserted the sd, the *ethernet* leds also blink |
| 10:38.43 | zenitraM | (they also blink without the sd) |
| 10:39.01 | hipboi | the hdmi is connect to A10 |
| 10:39.21 | zenitraM | which makes me think it is rebooting |
| 10:39.37 | hipboi | should not be some hardware problem |
| 10:39.48 | zenitraM | i hope so |
| 10:39.56 | zenitraM | but it failed so suddenly |
| 10:39.58 | zenitraM | that.. it's strange |
| 10:40.05 | hipboi | can you remove the sdcard and reboot? |
| 10:40.27 | zenitraM | i don't have the mele now here, i'm in class, but i tried and it didn't work |
| 10:40.52 | hipboi | ok, i see |
| 10:41.33 | zenitraM | i'll try with the uart and see |
| 10:42.13 | zenitraM | and also try the same sd with kadaki01's mele |
| 10:43.02 | hipboi | ok |
| 10:43.04 | zenitraM | will keep you informed :) thanks for everything! |
| 10:43.19 | hipboi | ok |
| 10:43.42 | hipboi | sorry for the bad software of allwinner |
| 10:44.26 | zenitraM | don't worry, i'm sure it's not your fault |
| 11:22.42 | CIA-46 | rhombus-tech: Lus master * ra386deaf4660 /allwinner_a10/orders/Quantity_1-2.mdwn: |
| 11:23.27 | CIA-46 | rhombus-tech: Lus master * r5ccf9e7d4af6 /allwinner_a10/orders/Quantity_1-2.mdwn: |
| 11:32.34 | *** join/#arm-netbook hipboi (~hipboi@117.136.31.190) |
| 11:35.41 | mnemoc | A2Sheds: for openec-32, what stm32-based kit do you plan to use? |
| 11:38.16 | mnemoc | A2Sheds: or refrashing, what stm32 core will you use in the first eoma68-compatible boards? |
| 11:38.29 | mnemoc | refrasing* |
| 11:40.04 | CIA-46 | rhombus-tech: Luca master * r6d89a32b26f0 /allwinner_a10/orders/Piccio_from_Italy.mdwn: |
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| 11:47.35 | *** join/#arm-netbook arokux (~arokux@merkur178.inf.uni-konstanz.de) |
| 12:08.28 | mnemoc | wonders the difference between STM32F103RB (http://www.st.com/internet/mcu/product/164487.jsp) and STM32F103VB (http://www.st.com/internet/mcu/product/164493.jsp) |
| 12:11.04 | mnemoc | there are inexpensive kits looking equivalent using either of them |
| 12:20.06 | CIA-46 | rhombus-tech: Lukasz master * ra77302d8915d /allwinner_a10/orders/zami010.mdwn: |
| 12:29.42 | zenitraM | puppy linux founder just ordered a Mele at DX |
| 12:34.19 | mnemoc | I suppose we are all subscribed to the ML :p |
| 12:40.46 | zenitraM | well, that's right :) |
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| 13:11.43 | zenitraM | great, my mele reboots on boot1 :/ |
| 13:23.52 | mnemoc | :'( |
| 13:34.32 | zenitraM | and the image made using phoenix card to reflash the firmware… also reboots on boot1 :/ |
| 13:34.37 | zenitraM | this seems like a hw issue |
| 13:39.18 | *** join/#arm-netbook kadaki01 (~lambda@wifi-80-93.uc3m.es) |
| 13:40.18 | mnemoc | not nice |
| 13:43.32 | zenitraM | and with a bootable u-boot sd using mksunxiboot… it loads the kernel… and inmediately reboots T.T |
| 13:44.30 | lkcl | mnemoc: something like the leaflabs maple could be used. it'll need a few breakout boards |
| 13:45.40 | mnemoc | lkcl: like http://www.aliexpress.com/product-fm/497384565-Recommend-Arduino-compatible-controller-leaflabs-maple-board-ARM-STM32-wholesalers.html ? |
| 13:46.12 | mnemoc | STM32F103RBT6 |
| 13:48.50 | mnemoc | http://www.aliexpress.com/product-fm/480930024-FreeShipping-F55-ARM-Cortex-M3-STM32F103VBT6-MINI-STM32-development-board-wholesalers.html seems equivalent but cheaper and with more pins :p ... but VBT6 instead of RBT6 |
| 13:52.23 | A2Sheds | why all these pricey STM32 boards when ST sells them for under $10?? |
| 13:53.12 | lkcl | http://leaflabs.com/devices/maple/ |
| 13:53.18 | lkcl | they do? |
| 13:53.52 | A2Sheds | I've been using this http://www.mouser.com/ProductDetail/STMicroelectronics/STM32L-DISCOVERY/?qs=sGAEpiMZZMuhSiU2%2f%2fjo2iK2MkzqOiaV |
| 13:53.58 | A2Sheds | $12ea |
| 13:54.38 | A2Sheds | http://www.mouser.com/ProductDetail/STMicroelectronics/STM32VLDISCOVERY/?qs=sGAEpiMZZMud4uhvMu9vpfd0cIzCMFfc |
| 13:54.44 | A2Sheds | $9.88ea |
| 13:54.46 | mnemoc | don't forget the shipping |
| 13:55.02 | A2Sheds | made by ST as well |
| 13:55.33 | mnemoc | but anyhow, my wonder is about the required specs to be compatible with what you'll build for eoma68 |
| 13:56.16 | A2Sheds | $45 for a Maple RET6 Edition!... does it come with lunch? |
| 13:56.54 | A2Sheds | everything else at the http://leaflabs.com/store/ is out of stock |
| 14:01.15 | A2Sheds | it's just software anyway, you just throw some code up and it just works right? :) |
| 14:02.19 | A2Sheds | just like the boards, use kicad, connect some lines, layout a few squiggly lines and you have a board |
| 14:04.19 | A2Sheds | http://rhombus-tech.net/gsoc2012/ideas/ |
| 14:06.40 | A2Sheds | http://www.hermann-uwe.de/blog/libopenstm32-a-free-software-firmware-library-for-stm32-arm-cortex-m3-microcontrollers |
| 14:07.10 | A2Sheds | libopenstm32 has many libs already working |
| 14:07.11 | lkcl | yeah riiiight :) |
| 14:07.31 | lkcl | A2Sheds: i've documented some of the OS code etc. on the elinux.org tablet page |
| 14:07.36 | lkcl | been collecting them |
| 14:07.44 | A2Sheds | the work will be to port and rework openEC-1.75 to 32 bit |
| 14:08.26 | A2Sheds | http://wiki.laptop.org/go/OpenEC |
| 14:08.37 | A2Sheds | it was writen for an 8 bit 8051 |
| 14:08.53 | A2Sheds | but there a lot of great open work to start from |
| 14:09.46 | A2Sheds | RTEMS also work on 32b ARM, but it has to be tried and tested on STM32 or LPC17xx |
| 14:13.30 | A2Sheds | http://www.rtems.com/ |
| 14:13.34 | lkcl | yep |
| 14:13.50 | CIA-46 | rhombus-tech: bari master * r6b4aa53ff740 /gsoc2012/ideas.mdwn: |
| 14:14.41 | lkcl | http://rhombus-tech.net/gsoc2012/ |
| 14:14.45 | CIA-46 | rhombus-tech: lkcl master * r9c9412de43b7 /gsoc2012.mdwn: add why section |
| 14:14.54 | lkcl | A2Sheds: this is a top priority to get this filled in |
| 14:15.35 | A2Sheds | yes, waiting for my thumbs to start working this morning |
| 14:16.39 | lkcl | :) |
| 14:17.03 | lkcl | i'm registered already. |
| 14:17.09 | lkcl | and putting in the application. |
| 14:17.18 | lkcl | you're the backup org admin? |
| 14:17.41 | A2Sheds | ok great! |
| 14:17.59 | lkcl | so it's just filling in that wiki page with answers, i'll cut/paste them from there |
| 14:18.40 | lkcl | we will also need to create a template guide for applicants |
| 14:18.51 | A2Sheds | it's up |
| 14:19.04 | A2Sheds | http://rhombus-tech.net/gsoc2012/ideas/?updated |
| 14:19.16 | A2Sheds | with links to howto fill out the apps |
| 14:19.33 | A2Sheds | http://drupal.org/node/59037 |
| 14:19.44 | A2Sheds | http://code.google.com/p/google-summer-of-code/wiki/AdviceforStudents |
| 14:19.44 | mnemoc | http://www.ebay.com/itm/New-ARM-Cortex-M3-STM32F103RBT6-Mini-Development-Board-/260924313786#ht_3779wt_1041 $18.50 with free shipping |
| 14:20.51 | A2Sheds | DEADLINE FOR STUDENT APPLICATIONS: Students who are interested in working on a OpenEC-32-related GSoC project must apply between March 26, 2012 and April 6, 2012! |
| 14:21.30 | A2Sheds | so the project has to be picked by Google first, then students may apply |
| 14:22.15 | mnemoc | the "discovery" is cortex-m4... what are you aiming at? |
| 14:22.29 | mnemoc | m3? |
| 14:24.12 | lkcl | brilliant |
| 14:25.11 | lkcl | let me sort that out as a template... |
| 14:25.22 | A2Sheds | STM32L15xxx http://www.st.com/internet/mcu/product/248820.jsp ARM Cortex-M3 |
| 14:27.32 | A2Sheds | STM32F100RB http://www.st.com/internet/mcu/product/216844.jsp Cortex-M3 |
| 14:28.16 | A2Sheds | mnemoc: which board has a cortex-M4? |
| 14:28.40 | A2Sheds | maybe a typo somewhere |
| 14:28.53 | mnemoc | the st discovery devkit |
| 14:29.11 | A2Sheds | have alink? |
| 14:31.10 | A2Sheds | the two Discovery dev boards I listed above are both M3 |
| 14:31.13 | mnemoc | 1m... i'm only finding f100 versions now :-/ |
| 14:31.31 | A2Sheds | I haven't come across an M4 yet |
| 14:31.51 | A2Sheds | they will get popular over the next few years |
| 14:31.53 | mnemoc | the STM32F4 are m4 |
| 14:32.10 | A2Sheds | and we should probably make the code easily transportable |
| 14:33.29 | mnemoc | http://www.st.com/internet/evalboard/product/252419.jsp |
| 14:34.02 | mnemoc | ^--- that discovery is m4 .... I didn't know about the m3 flavours :-/ |
| 14:34.32 | A2Sheds | 168 MHz ARM® Cortex-M4-based STM32 F4 series , fast enough to run a cheap tablet! |
| 14:36.23 | A2Sheds | git://libopenstm32.git.sourceforge.net/gitroot/libopenstm32/libopenstm32 you guys decide, remember I'm trying to stick to hardware as much as possible |
| 14:37.55 | A2Sheds | http://ics.nxp.com/lpcxpresso/#Products has list of the NXP devices also supported by libopenstm32 |
| 14:38.25 | A2Sheds | LPC17xx Series MCUs are all cortex M3 |
| 14:41.55 | A2Sheds | http://www.mouser.com/ProductDetail/NXP-Semiconductors/OM11043598/?qs=sGAEpiMZZMurtJ7VwBTl0d9HZPs5U2cAPL2hTOjcc4g%3d |
| 14:42.26 | A2Sheds | the dev boards for the LPC17xx are a bit more expensive $50.80 |
| 14:43.46 | mnemoc | a bit :p |
| 14:44.33 | A2Sheds | 2 years ago they were giving them away |
| 14:44.43 | A2Sheds | but that promotion is over |
| 14:45.47 | mnemoc | still wondering about STM32F103RBT6 vs. STM32F103VBT6 |
| 14:46.11 | A2Sheds | we possibly may need to decide what the smallest amout of ROM/Flash we will support |
| 14:46.25 | mnemoc | yes |
| 14:46.55 | A2Sheds | RTEMS can be trimmed down to 4K |
| 14:47.17 | A2Sheds | that will fit anything M3 we are considering |
| 14:47.35 | A2Sheds | the rest will be what features will fit |
| 14:48.03 | A2Sheds | but Richard has all his openEC working on an 8051 |
| 14:48.36 | A2Sheds | so unless we go crazy with USB or ethernet options/services we should be fine |
| 14:50.54 | *** join/#arm-netbook ibot (~ibot@rikers.org) |
| 14:50.54 | *** topic/#arm-netbook is EOMA: Embedded Open Modular Architecture - Don't ask to ask. Just ask! - http://elinux.org/Embedded_Open_Modular_Architecture/EOMA-68 - ML arm-netbook@lists.phcomp.co.uk - Logs http://ibot.rikers.org/%23arm-netbook - http://rhombus-tech.net/ |
| 14:54.59 | mnemoc | it seems the only difference between STM32F103RBT6 and STM32F103VBT6 is the number of pins, 64 vs 100 |
| 14:55.58 | A2Sheds | I'll have to check later and get back, busy here this morning :) |
| 14:59.04 | mnemoc | :) |
| 14:59.34 | CIA-46 | rhombus-tech: bari master * rc4f133de167e /gsoc2012/ideas.mdwn: |
| 15:04.31 | A2Sheds | 80 vs 51 GPIO is the difference |
| 15:05.00 | A2Sheds | http://www.st.com/stonline/stappl/productcatalog/app?page=productSelector has a comparison tool |
| 15:07.31 | mnemoc | http://www.lctech-inc.com/Hardware/Detail.aspx?id=c107bb9e-d6ea-4cd7-a62a-fef5effc5075 and http://www.lctech-inc.com/Hardware/Detail.aspx?id=1785279f-37d9-4c51-8b3e-27b474339fba are the home pages of the cheap STM32F103VBT6 and STM32F103RBT6 kits in ebay |
| 15:07.33 | CIA-46 | rhombus-tech: Hugo master * r235334af4bd2 /allwinner_a10/orders/lenod.mdwn: |
| 15:08.25 | mnemoc | from my null experience, they seem like a good platform for developing openec-32 |
| 15:10.20 | mnemoc | there are others with LCD... but that's kind of out of scope, isn't it? |
| 15:11.17 | A2Sheds | you never know, maybe a product with it's ow small LCD with a eoma68 socket will be developed |
| 15:11.23 | A2Sheds | ow/own |
| 15:11.44 | mnemoc | good point |
| 15:12.01 | A2Sheds | any of the devs boards should work |
| 15:12.24 | A2Sheds | we will also be making IO boards as soon we make the first a10 card |
| 15:12.40 | A2Sheds | we need something to test and develop on |
| 15:13.27 | A2Sheds | maybe i should make the dev IO boards first, the they will be ready for the eoma68 cards as soon as they are done |
| 15:13.29 | mnemoc | are you going to stick with stm32/cm3? |
| 15:13.42 | mnemoc | YES |
| 15:14.06 | A2Sheds | the attraction to stm32 is the open libs |
| 15:14.18 | A2Sheds | so anything that works with them if fine |
| 15:15.22 | A2Sheds | ST, NXP, Samsung, Freescale etc |
| 15:15.40 | mnemoc | it would be good if whatever kit is used to initially develop openec for gsoc has the same SoC than the first io boards for eoma68 |
| 15:15.56 | A2Sheds | Atmel |
| 15:16.48 | mnemoc | so picking the chip for the io boards should be a priority |
| 15:19.57 | A2Sheds | have to see what fell off a truck |
| 15:20.16 | mnemoc | :) |
| 16:03.55 | CIA-46 | rhombus-tech: Antti_Arvela master * r470da2cf2488 /allwinner_a10/orders/oh3kqd.mdwn: |
| 16:08.21 | CIA-46 | rhombus-tech: lkcl master * rc25a3366ab6a /gsoc2012.mdwn: gsoc application update |
| 16:35.58 | *** part/#arm-netbook QingPei1 (~qingpei@123.118.108.7) |
| 16:52.47 | A2Sheds | lkcl: this tablet page? http://elinux.org/Embedded_Open_Modular_Architecture/EOMA-68/Tablet |
| 16:54.01 | A2Sheds | lkcl: just be clear. Are you submitting the official project application to GSOC2012? |
| 16:55.26 | mnemoc | just noticed the io boards in there are already commited to STM32F103 |
| 16:56.10 | *** join/#arm-netbook destinal (~chatzilla@ip70-173-29-15.lv.lv.cox.net) |
| 16:56.24 | hno | I don't think it's committed to a particular chip yet. |
| 16:56.38 | lkcl | A2Sheds: yes and yes |
| 16:56.39 | hno | but that is a good candidate |
| 16:56.47 | lkcl | hno: correct. |
| 16:56.49 | A2Sheds | great and great |
| 16:57.06 | lkcl | A2Sheds: but i need help answering the remaining questions before doing so |
| 16:57.12 | A2Sheds | anyone can make an IO board |
| 16:57.14 | lkcl | and reviewing the existing answers |
| 16:57.24 | A2Sheds | lkcl: filling in the blanks right now :) |
| 16:57.45 | lkcl | the only essential requirement is that it MUST have a I2C EEPROM on board. hmm, we must also define the address it's to be at, on the I2C bus |
| 16:58.08 | A2Sheds | I'm have the little army in China searching for the best cortex m3 prices now |
| 16:58.28 | lkcl | superb |
| 16:58.45 | A2Sheds | NXP, ST, Atmel etc |
| 16:59.26 | lkcl | nyer nyer you and whose army, eh? :) |
| 16:59.30 | A2Sheds | even Actel Fusion fpga+m3 hardcore |
| 16:59.55 | A2Sheds | I have to find that cartoon |
| 17:00.36 | A2Sheds | the one guy is saying that with the other guys Army right around the corner out of view |
| 17:00.40 | lkcl | it needs to have USB, I2S, I2C, PWM (multiple of), ADC (multiple of), DAC (multiple of) |
| 17:01.19 | lkcl | and about 16 GPIOs or so |
| 17:01.24 | A2Sheds | thee are several variants |
| 17:01.37 | A2Sheds | 40 even 60+ GPIO |
| 17:01.37 | lkcl | and also be well-supported in the free software community. |
| 17:01.48 | mnemoc | at least at this stage IC choixw need to be tied to the capability of developing and reusing software for it, and inexpensive devkits is critical for that... imho |
| 17:01.55 | lkcl | yeah those will be $2 to $3 to $4 - that's too much |
| 17:01.56 | A2Sheds | they are typically on shared pins so comparisons are frustrating |
| 17:02.48 | A2Sheds | I'd like a manufacturer to actually list available IO on unshared pins |
| 17:02.50 | lkcl | each time someone came up with a new Cortex M3 CPU over the past year, i took a look at them: there really wasn't anything better than the STM32F, not that i could see. |
| 17:03.39 | A2Sheds | I have had designs where I used the USB, SPI, Ethernet and serial and 2 GPIO were left on a 100 pin device |
| 17:04.02 | A2Sheds | since they also break the IO's up into blocks |
| 17:05.07 | A2Sheds | if you need something from one block, say USB, it may lock you out from using SPI as well on that block, even though there are enough pins available |
| 17:09.21 | lkcl | mnemoc: yeah that's why i like the STM32F, it's not hard to get devkits, or the software. |
| 17:15.18 | CIA-46 | rhombus-tech: bari master * re3e0e5032575 /gsoc2012.mdwn: |
| 17:18.34 | mnemoc | lkcl: I just fear that the search for "cheaper" ends up making development far more expensive (or even dead) |
| 17:18.36 | A2Sheds | what would be some nice goals for GSOC? working RTEMS on STM32 with some ports functioning? |
| 17:18.58 | A2Sheds | nah, the cheap parts have about the same IO's |
| 17:19.38 | A2Sheds | they all have SPI, I2S, I2C, PWM and DA/AD as basics |
| 17:20.00 | A2Sheds | then they add more of them + LCD, ethernet, USB, etc |
| 17:21.16 | mnemoc | but if the "cheaper" micro controller doesn't have cheap and good devkits it will strike software development |
| 17:22.16 | A2Sheds | same kit, plus there will be actual IO boards |
| 17:24.43 | mnemoc | :) |
| 17:25.49 | A2Sheds | if you look at the comparison charts for the family, you'll see it starts with a basic set of features and then they just add to it |
| 17:26.32 | A2Sheds | it looks like they make about 4-5 designs with different amounts of flash/rom and embedded RAM |
| 17:27.09 | A2Sheds | then they package them in 30-50 versions based on what IO is wired out to package pins |
| 17:27.18 | mnemoc | nice :) I suppose I misunderstood you.... I thought you were looking for cheaper alternatives to STM32F1/L1 not cheaper within ETM32F1/L1 |
| 17:27.26 | A2Sheds | they actually don't fab 40 different die |
| 17:27.44 | A2Sheds | yes, cheaper within |
| 17:28.04 | mnemoc | neat |
| 17:28.29 | mnemoc | will getting the connectors for the io boards be as painful as for the eoma68/a10? |
| 17:31.42 | CIA-46 | rhombus-tech: bari master * rd48a84ff1587 /gsoc2012/ideas.mdwn: |
| 17:34.04 | CIA-46 | rhombus-tech: Maurizio master * r0d3b356b8687 /allwinner_a10/orders/cirro.mdwn: |
| 17:34.35 | CIA-46 | rhombus-tech: Maurizio master * r7064934b584d /allwinner_a10/orders/cirro.mdwn: |
| 17:36.27 | A2Sheds | IO board connectors are up to the OEM, some might be the same as whats on the cards |
| 17:37.16 | A2Sheds | we are searching for the IO connectors as well, RJ45's, USB, audio jacks, etc etc |
| 17:37.44 | A2Sheds | the main one is the matching 68pin socket |
| 17:38.01 | A2Sheds | thats the one every IO board will use |
| 17:38.57 | mnemoc | http://www.wvshare.com/product/Port103V.htm <--- cute :) |
| 17:39.12 | A2Sheds | some IO board will have keyboard scan, others touchscreen controller, and other joysticks etc |
| 17:40.52 | A2Sheds | some might add USB hubs, audio amps, wifi, and all types of expansion IO and slots |
| 17:42.16 | A2Sheds | this project might have quite an impact on all these small dev board makers |
| 17:42.51 | *** join/#arm-netbook eflatun (~eflatun@46.1.26.67) |
| 17:47.32 | mnemoc | hope so |
| 17:48.00 | mnemoc | eoma68 has an amazing potential |
| 17:51.34 | A2Sheds | just don't mess up the software :) |
| 17:53.39 | mnemoc | get the hardware first ;-) |
| 17:59.13 | CIA-46 | rhombus-tech: Floris master * r3c6b6250f5b3 /allwinner_a10/orders/max.mdwn: |
| 18:04.06 | CIA-46 | rhombus-tech: bari master * rc39af1a904c6 /gsoc2012.mdwn: |
| 18:10.17 | A2Sheds | http://detail.tmall.com/item.htm?id=13716299588&prt=1331316584852&prc=1 for a 48 pin device |
| 18:10.38 | A2Sheds | http://item.taobao.com/item.htm?id=7014235460 for a 100 pin |
| 18:11.55 | mnemoc | what's the minimal to fully support eoma68? |
| 18:12.14 | A2Sheds | I2C |
| 18:12.52 | A2Sheds | all the parts seem to work |
| 18:12.58 | mnemoc | nice |
| 18:13.13 | mnemoc | ordering o'reilly's designing embedded hardware |
| 18:13.50 | A2Sheds | that and a few years of design and you'll be on the way :) |
| 18:14.10 | mnemoc | i only need to understand the lingo :p |
| 18:14.21 | mnemoc | i don't plan to ever design a board myself |
| 18:14.43 | A2Sheds | yesh, I can't imagine what they would write about in there, probably lots of common info with no details |
| 18:15.01 | mnemoc | )( |
| 18:15.03 | A2Sheds | like the books on C |
| 18:15.05 | mnemoc | =) |
| 18:15.33 | mnemoc | http://www.ebay.com/itm/STM32-Development-Board-STM32F103VET6-STM32F103VE-/250862750457 <--- what do you think about this kit? |
| 18:16.06 | mnemoc | (yellow over blue pcb looks sexy) |
| 18:27.16 | *** part/#arm-netbook hno (~hno@squid/developer/hno) |
| 18:27.28 | *** join/#arm-netbook hno (~hno@squid/developer/hno) |
| 18:35.58 | CIA-46 | rhombus-tech: Markus master * rb59864c3395f /allwinner_a10/orders/markus__95__hess__64__hotmail.com.mdwn: |
| 18:50.31 | *** join/#arm-netbook mikey_w (~mike@pool-74-110-218-2.rcmdva.fios.verizon.net) |
| 18:50.54 | *** join/#arm-netbook mike_ (~mike@pool-74-110-218-2.rcmdva.fios.verizon.net) |
| 19:11.47 | *** join/#arm-netbook destinal (~chatzilla@ip70-173-29-15.lv.lv.cox.net) |
| 19:35.04 | CIA-46 | rhombus-tech: Fuzzy master * rd16eac0565d3 /allwinner_a10/orders/jghjgfgh.mdwn: |
| 19:40.49 | mnemoc | Port103V ordered |
| 19:46.11 | CIA-46 | rhombus-tech: Baybal master * rf1162029569b /presentation.mdwn: |
| 19:46.54 | mnemoc | their Open103Z is also very very nice |
| 19:47.44 | hno | Would STM32F103RBT6 be of any use? Can find STM32-P103 dev boards pretty cheap around here. |
| 19:48.03 | hno | http://www.olimex.com/dev/stm32-p103.html |
| 19:48.46 | mnemoc | STM32F103RBT6 has less gpios but still enough for our purposes afaiui |
| 19:49.04 | hno | How much ram & flash do we expect will be needed? |
| 19:50.03 | mnemoc | those RTOS claim to be functional at 4K size, double? triple? |
| 19:50.34 | hno | I guess it's hightly dependent on what functions we want to cram into there. |
| 19:50.53 | mnemoc | been a software guy I chose the fat version of stm32F103, 512K of flash and 64K of ram |
| 19:51.36 | hno | This have 128K flash, 20K ram. Might be a bit tight as a dev board. |
| 19:52.29 | hno | but then again, not even sure what functions we have as goal. |
| 19:52.53 | mnemoc | http://www.ebay.com/itm/Open103Z-Standard-ARM-STM32F103ZET6-MCU-PL2303-USB-UART-Development-board-Kit-/250877002154 <--- this is the most a*s kicking stm32F103 board I've found, puts the ceiling at $40 with free shipping |
| 19:54.23 | mnemoc | I doubt the needs for an EC are high.... STM32F103RBT6 might be plenty |
| 19:54.42 | A2Sheds | it's a range of goals, OEM's will chose a version of STM32 to fit their needs |
| 19:55.08 | A2Sheds | ST should be helping or at least thanking us for doing this |
| 19:55.17 | mnemoc | but I prefer a board I can use to gain cortex-m3 experience for possible future jobs |
| 19:55.42 | A2Sheds | any stm32 will be useful at this point |
| 19:57.31 | hno | I guess some suitable functions are: |
| 19:57.51 | hno | * Keyboard |
| 19:57.58 | hno | * Charging |
| 19:58.05 | hno | * Touch screen |
| 19:58.06 | A2Sheds | OEM's will mix and match functions |
| 19:58.22 | hno | Yes. |
| 19:58.35 | A2Sheds | http://wiki.laptop.org/go/OpenEC |
| 19:58.42 | A2Sheds | take a look at the list there |
| 19:59.03 | A2Sheds | http://wiki.laptop.org/go/OpenEC#Files_of_the_C_implementation |
| 19:59.09 | hno | We also talked about USB audio and some other features. |
| 19:59.40 | A2Sheds | yes, those aren't in openEC |
| 20:00.19 | A2Sheds | the stn32 can handle the SPI audio to analog out |
| 20:00.28 | A2Sheds | or I2S |
| 20:01.22 | hno | iirc the intention was to not have any audio in EOMA and instead route audio via USB to the EC: |
| 20:01.42 | A2Sheds | or USB out |
| 20:01.54 | A2Sheds | any of those buses can do it |
| 20:02.35 | hno | but don't we have stereo analog audio in EOMA now? |
| 20:04.31 | mnemoc | the a10 card had an external stereo analog audio, and hdmi audio |
| 20:04.37 | mnemoc | but that's not part of the eoma interface |
| 20:04.55 | mnemoc | other modules may rely on an audio controller on the io board |
| 20:08.21 | hno | Right, there is no audio in EOMA. And only one USB. |
| 20:10.26 | lkcl | A2Sheds: you need to register on gsoc and send me the username id |
| 20:12.48 | lkcl | also if there is an actual programmable CPU it would be possible to perform compression and decompression (lossy or lossless) on the audio data, which would allow it to fit into the bandwidth of I2C. |
| 20:16.54 | destinal_ | hno: yeah USB hub and usb sound chip on IO board seems the sensible way to go |
| 20:18.05 | mnemoc | i fear the usb bandwidth will prove to be the weakest part of eoma68 |
| 20:18.39 | mnemoc | but still enough for many many applications |
| 20:20.49 | hno | yes, one USB2 channel is quite a lot of bandwidth for this kind of devices. |
| 20:23.13 | hno | bute sure, a laptop with storage, wifi, audio, touch screen, mouse, keyboard, and what not, might eat some of that. |
| 20:23.54 | A2Sheds | laptops use SPI or LPC between chipset and EC |
| 20:24.24 | A2Sheds | the EC handles battery charging, keyboard scan, led's, lid open/closed |
| 20:24.31 | lkcl | destinal_: yep |
| 20:24.50 | A2Sheds | audio is handled bu a dedicated audio device |
| 20:25.30 | lkcl | mnemoc: think about it. it's 480mbit/sec. what the heck would anyone be doing that uses all that up?? that's 6 DisplayLink devices, or 2 bi-directional 10/100 Ethernet devices |
| 20:26.22 | lkcl | destinal_: have you looked up the price of USB Audio devices? |
| 20:26.30 | *** join/#arm-netbook MaDMaLKaV (~IceChat9@188.86.253.69) |
| 20:27.09 | lkcl | as they typically have to have an on-board DSP, as well as having both Analog and Digital circuits, they're as much money if not more money than an STM32! |
| 20:28.22 | hno | and some also have amplifiers built in. |
| 20:30.47 | mnemoc | lkcl: 6 DisplayLink?? 1920x1080x32x60 = 3981312000 ..... I assumed their compression was good, but..... that good?? |
| 20:31.56 | lkcl | it's not spectacular :) |
| 20:31.57 | destinal_ | @lkcl yeah STM32 could be pretty good option actually. |
| 20:32.52 | mnemoc | hey! I already ordered an stm32f103 devkit... please don't step back.... i don't like to collect boards :-/ |
| 20:36.20 | lkcl | :) |
| 20:39.19 | hno | mnemoc, did you notice this: http://www.ebay.com/itm/Open103Z-Package-B-ARM-Cortex-M3-LCD-AD-DA-UART-STM32F103Z-Development-board-Kit-/250893186138 |
| 20:43.50 | mnemoc | hno: yes, that board alone is sold for $40, mentioned it above. if I really were into cortex-m3 programming I would absolutely buy that... but I only want to gain basic skills to not feel like an analphabet |
| 20:44.21 | mnemoc | so I ordered it's smaller brother, the port103V |
| 20:46.51 | mnemoc | hno: damn... you are making me rethink my choice :-/ |
| 20:47.30 | hno | mnemoc, don't worry. If you really get into it you want another one anyway |
| 20:47.47 | mnemoc | :) |
| 20:47.52 | hno | or build your own accessory boards. |
| 20:47.54 | mnemoc | with you get the full kit? |
| 20:48.04 | mnemoc | nah, I can't solder |
| 20:48.50 | hno | not sure if I will get any. Not at this stage. Will have plenty of things to bite into anyway. |
| 20:48.55 | mnemoc | a solderless breadboard and some jumper wires is as hardcore as I can go |
| 20:49.46 | hno | have made some pcb:s, and many wire dev boards. But mostly a software guy. |
| 20:50.13 | hno | mostly trying to get a grip of what an MC of this caliber could be used for. |
| 20:50.31 | hno | and how that fits with EOMA. |
| 20:53.26 | hno | many interesting small things from this seller. |
| 20:58.28 | hno | needs to stop before whole evening wasted on ebay |
| 21:04.09 | A2Sheds | $119 for just the mainboard? |
| 21:04.17 | hno | what? |
| 21:04.30 | A2Sheds | or do you get all the expansion dongles as well? |
| 21:04.50 | hno | the one I pasted is with most dongles. |
| 21:05.11 | hno | the earlier one with only usb->uart dongle. |
| 21:05.23 | hno | same board. |
| 21:05.23 | A2Sheds | that is a near perfect dev kit |
| 21:05.50 | A2Sheds | I'll have the factory copy that and sell them for $99 |
| 21:05.55 | hno | you can also buy dongles separately, pick what you need. |
| 21:06.10 | A2Sheds | no, it's great |
| 21:06.16 | A2Sheds | you pick what you need |
| 21:06.45 | A2Sheds | needs a keyboard scan |
| 21:07.34 | A2Sheds | 8 I/O Interface: easily connects to keypad, motor, etc; for a 4x4 |
| 21:07.50 | hno | yes, but not for a full keyboard (laptop) |
| 21:08.21 | mnemoc | http://www.wvshare.com <--- the guys who make it |
| 21:08.48 | hno | yes, it's their ebay account. |
| 21:08.57 | A2Sheds | the rom is integrated so any board will do |
| 21:09.18 | hno | ram & flash integrated in the mcu. |
| 21:09.32 | A2Sheds | I2C is what the eoma68 card will use for detecting what the IO board is |
| 21:09.42 | hno | yes |
| 21:10.13 | A2Sheds | hno: did you see my earlier links to $10 dev boards? |
| 21:10.14 | lkcl | hno: if you look up the cost of an Audio IC from Wolfson Micro, it's between $1.00 and $2.00 depending on what you get. |
| 21:10.37 | hno | lkcl, ok. |
| 21:10.38 | lkcl | if you look up the cost of a Battery Charging circuit - a proper one, it's about $1.00 |
| 21:10.44 | A2Sheds | http://www.mouser.com/ProductDetail/STMicroelectronics/STM32L-DISCOVERY/?qs=sGAEpiMZZMuhSiU2%2f%2fjo2iK2MkzqOiaV |
| 21:10.55 | A2Sheds | http://www.mouser.com/ProductDetail/STMicroelectronics/STM32VLDISCOVERY/?qs=sGAEpiMZZMud4uhvMu9vpfd0cIzCMFfc |
| 21:11.11 | lkcl | if you look up the cost of a proper LED Backlight Driver IC, which does PWM in such a way that the LEDs are *not* damaged, it's about $1.50 |
| 21:11.32 | lkcl | if you look up the cost of a resistive touchpanel driver IC, it's about $1.50 |
| 21:11.55 | lkcl | so to do a tablet or a laptop motherboard, you've just had to put ICs down which cost between $5 and $7 |
| 21:11.57 | lkcl | ... |
| 21:11.58 | lkcl | .... |
| 21:12.00 | lkcl | ooooorrrr...... |
| 21:12.18 | lkcl | you could use *one* single STM32 or other EC and do everything in software |
| 21:12.33 | hno | A2Sheds, thats 128K flash, 16K ram. Won't be able to do much. |
| 21:12.45 | lkcl | because we have something called... a bwaaaiiiiin :) |
| 21:12.57 | A2Sheds | we have been doing this for years with 8051's :) |
| 21:12.59 | lkcl | cackles manically |
| 21:13.20 | lkcl | A2Sheds: doh! |
| 21:13.41 | hno | A2Sheds, I know, but not much USB & Audio & other data hungry stuff.. |
| 21:14.13 | A2Sheds | http://wiki.laptop.org/go/OpenEC was written for http://wiki.laptop.org/images/a/ab/KB3700-ds-01.pdf |
| 21:14.26 | hno | lkcl, most MC:s you find in x86 laptops etc is 8051 based. |
| 21:14.34 | A2Sheds | USB host can get heavy |
| 21:14.49 | lkcl | hno: yeah bari's been filling me in |
| 21:14.59 | A2Sheds | 64KB flash/rom 2kb sram |
| 21:15.24 | hno | We don't need USB host. Only gadget. |
| 21:15.38 | A2Sheds | yes, so it's small |
| 21:15.43 | lkcl | start spreading a newwWWWW |
| 21:15.48 | lkcl | i'll make a... |
| 21:15.57 | A2Sheds | RTEMS uses the BSD stacks for USB and Ethernet IIRC |
| 21:16.01 | lkcl | brannddnewstaaaartof it |
| 21:16.07 | lkcl | in good ol'd |
| 21:16.14 | lkcl | neww yooooooOOOOrk |
| 21:16.22 | lkcl | ahemsorry |
| 21:16.31 | A2Sheds | lkcl: at the pub? |
| 21:16.48 | A2Sheds | join you soon |
| 21:16.55 | lkcl | ah no, just had some weetabix and i might have put too much sugar on them |
| 21:17.07 | hno | don't see much good of moving to that city. |
| 21:17.17 | hno | or country. |
| 21:18.53 | A2Sheds | yeah, NYC was fun in the 70's-90's |
| 21:19.14 | A2Sheds | now they have ruined just about everything here |
| 21:22.47 | A2Sheds | http://www.rtems.com/ has applied for GSOC as well |
| 21:23.02 | A2Sheds | http://wiki.rtems.org/wiki/index.php/RTEMSSummerOfCode |
| 21:29.11 | CIA-46 | rhombus-tech: bari master * r0592f83e7b2c /gsoc2012/ideas.mdwn: |
| 21:31.31 | CIA-46 | rhombus-tech: lkcl master * ree8c67118adb /: Merge branch 'master' of ssh://git.hands.com/rhombus |
| 21:31.42 | CIA-46 | rhombus-tech: lkcl master * r135a4667ea2d /allwinner_a10/orders/ (10 files): order processing cleanup |
| 21:31.46 | lkcl | A2Sheds: i'm going to move the ideas/ page to ideas/openec32 and add some infrastructure for allowing people to add their own ideas |
| 21:32.17 | A2Sheds | great |
| 21:35.32 | lkcl | where the heck should people actually apply? |
| 21:36.44 | A2Sheds | that link goes up next week after the projects get picked |
| 21:38.03 | lkcl | ahh ok |
| 21:40.19 | CIA-46 | rhombus-tech: lkcl master * r12702049aedb /gsoc2012/ (ideas.mdwn ideas/openec32.mdwn): redo ideas a bit |
| 21:40.51 | A2Sheds | RTEMS is going to make some news about how we are going to use it in laptops/tablets etc |
| 21:41.05 | CIA-46 | rhombus-tech: lkcl master * r2f921d8166ff /gsoc2012.mdwn: |
| 21:41.32 | lkcl | cool! |
| 21:41.58 | lkcl | well, that makes the choice of real-time OS quite easy, then :) |
| 21:44.02 | lkcl | http://rhombus-tech.net/gsoc2012/ideas/ - updated |
| 21:55.06 | CIA-46 | rhombus-tech: lkcl master * rc45f6bf77de4 /allwinner_a10/news.html: news update |
| 21:57.46 | A2Sheds | it's all xvilka's fault! he brought up RTEMS |
| 21:59.24 | destinal_ | A2Sheds: hmmm RTEMS adequate for 3d printing? |
| 21:59.41 | A2Sheds | more than enough |
| 21:59.50 | lkcl | ha ha |
| 22:00.13 | A2Sheds | it's used by NASA, BMW ,ESA, and JPL.. experimental physics.. most US national labs and a number of foriegn ones |
| 22:00.28 | A2Sheds | faster than RTAI on Linux |
| 22:00.36 | A2Sheds | and that what we use for linuxcnc |
| 22:00.50 | A2Sheds | to control lathes, mills, robots etc |
| 22:01.15 | destinal_ | So is the idea to use RTEMS on the A10 or STM32? |
| 22:01.48 | A2Sheds | STM32 |
| 22:02.02 | mnemoc | RTEMS is an OS, STM32 a chip |
| 22:02.33 | A2Sheds | http://www.rtems.com/ |
| 22:02.42 | A2Sheds | #rtems |
| 22:02.48 | destinal_ | mnemoc: right, but you execute an OS on a processor generally -- are we speaking the same language? :) |
| 22:04.04 | CIA-46 | rhombus-tech: lkcl master * r6a7c560eb3e8 /gsoc2012/ideas/EOMA68_linux_kernel_support.mdwn: |
| 22:04.13 | mnemoc | destinal_: you said "or" when it should have been an "and" :) |
| 22:04.22 | lkcl | destinal_: it's not strictly speaking necessary to _have_ an OS, but it certainly makes life easier |
| 22:04.46 | lkcl | in this case the STM32 will be handling quite a lot of different tasks, some of which are time-critical |
| 22:04.54 | lkcl | and must definitely be context-switched |
| 22:05.15 | mnemoc | but openec32 doesn't need to be bound to one specific RTOS |
| 22:05.25 | destinal_ | mnemoc: what I was asking was which of the two chips we were looking at for RTEMS, I kind of figured it was the STM32 though since the idea has always been to put Linux on the A10 usually |
| 22:05.42 | lkcl | so... the audio needs to be absolutely on-the-nail. you *must* change the output of the DAC for the stereo speakers 48,000 times per second |
| 22:05.50 | lkcl | etc. etc. |
| 22:06.03 | lkcl | doing that as a single application would be ... uh... a bitch :) |
| 22:06.08 | destinal_ | mnemoc: I know you could use RTEMS on either in theory |
| 22:06.38 | mnemoc | destinal_: the stm32 controls the low level of the io board, while the a10 runs linux on the eoma68 card |
| 22:07.00 | destinal_ | mnemoc: yeah, we're saying the same thing |
| 22:07.04 | mnemoc | :) |
| 22:07.07 | mnemoc | gut |
| 22:07.40 | destinal_ | I have an STM32 discovery board here somewhere i've been meaning to play with |
| 22:08.07 | mnemoc | neat |
| 22:11.57 | destinal_ | A2Sheds: for the reprap 3d printer board I've also been thinking about putting an STM32 on the IO board and porting arthur's "smoothie" (grbl based) firmware on that, since it will probably end up being heavily supported for future reprap stuff on other boards anyway. then talking to it from the A10 over I2C |
| 22:12.41 | mnemoc | destinal_: after re-reading you now I finally understood what you where saying correctly :-/ |
| 22:13.14 | CIA-46 | rhombus-tech: marco master * rf77e9ab4b944 /allwinner_a10/orders/caminati.mdwn: |
| 22:14.06 | destinal_ | mnemoc: :) I don't think it's a worthwhile project but I suppose someone could port RTEMS to the allwinner A10 SoC |
| 22:14.21 | destinal_ | I like Linux for the big SoC though |
| 22:15.54 | destinal_ | the idea of big non-real-time SoC and smaller real-time processor talking over I2C or whatever makes a lot of sense IMO |
| 22:16.06 | mnemoc | same to me |
| 22:18.09 | A2Sheds | destinal_, I was looking to work with smoothie as well |
| 22:18.41 | A2Sheds | I will probably make an A10 version with an FPGA on card |
| 22:19.34 | A2Sheds | the FPGA can be used for realtime GPIO for automation and also as a NAND to DDR3 interface to make a real fast swap drive |
| 22:19.48 | destinal_ | A2Sheds: I would be willing to collaborate if you are willing to put up with an FPGA novice :) |
| 22:20.28 | A2Sheds | it's an afternoons work, you are welcome to edit it |
| 22:20.51 | A2Sheds | board layout will take extra time |
| 22:21.53 | destinal_ | A2Sheds: seems like the software port would be more work than the actual layout. do you have experience with developing for FPGA? |
| 22:22.30 | destinal_ | (I do not, but want to learn) |
| 22:22.46 | A2Sheds | yes, take a look at opencores |
| 22:23.30 | A2Sheds | destinal: Mesa has open FPGA blocks for servos, steppers, IO etc |
| 22:23.37 | destinal_ | nice |
| 22:24.00 | A2Sheds | and all i have to do is map NAND to a DDR3/2 interface |
| 22:24.35 | destinal_ | sorry, it's just amazing how powerful FPGA development is these days, this is why I really want to get into it |
| 22:24.45 | A2Sheds | address space is the same, and the DDR2/3 controller handles all the refreshing and access stuff |
| 22:24.47 | destinal_ | especially with common open reusable bits you can just combine |
| 22:25.12 | A2Sheds | add VHDL and Verilog and you're pretty well set |
| 22:26.10 | A2Sheds | the rest is dealing with clock distribution, tweaking the timing on IO and hand packing for the most gate utilization |
| 22:26.32 | CIA-46 | rhombus-tech: marco master * r72ba809565c7 /allwinner_a10/orders/caminati.mdwn: |
| 22:27.30 | A2Sheds | http://www.rtems.org/wiki/images/b/b9/RTEMSArchitecture.png |
| 22:28.32 | A2Sheds | I have some products that actually use the STM32's with an LCD and small keyboard, serial, USB, GPIO |
| 22:28.55 | destinal_ | A2Sheds: NAND interface to the STM32? |
| 22:29.16 | A2Sheds | destinal: no, NAND on the A10 |
| 22:29.17 | destinal_ | or to A10? I don't see NAND interface on EOMA68 |
| 22:29.39 | A2Sheds | use the NAND interface for a DDR3 drive |
| 22:30.10 | A2Sheds | NAND would also be the interface to the FPGA |
| 22:30.12 | destinal_ | but I mean you need a custom EOMA68 card, or how can you connect to the SoC? |
| 22:30.27 | A2Sheds | version of the A10 eoma68 card |
| 22:30.45 | A2Sheds | would be good for cluster applications as well |
| 22:30.50 | destinal_ | cool |
| 22:31.07 | A2Sheds | depends on what other ARM soc's come along |
| 22:31.22 | A2Sheds | maybe a 4 core A9 or something next |
| 22:31.44 | A2Sheds | allwinner, Samsung, Renesas |
| 22:31.48 | destinal_ | wonder how hard a SATA ramdisk would be to implement with an FPGA, probably rather nontrivial |
| 22:32.04 | A2Sheds | already done and out there |
| 22:32.12 | destinal_ | awesome |
| 23:27.02 | *** join/#arm-netbook ibot (~ibot@rikers.org) |
| 23:27.02 | *** topic/#arm-netbook is EOMA: Embedded Open Modular Architecture - Don't ask to ask. Just ask! - http://elinux.org/Embedded_Open_Modular_Architecture/EOMA-68 - ML arm-netbook@lists.phcomp.co.uk - Logs http://ibot.rikers.org/%23arm-netbook - http://rhombus-tech.net/ |
