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| 17:28.35 | prpplague | anyone got eagle installed? |
| 17:29.56 | wmat | I do at home, but unfortunately, I'm not there |
| 17:32.12 | prpplague | wmat: np |
| 17:49.42 | chouimat | morning |
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| 20:40.32 | *** topic/#edev is Discussion of embedded systems (Hardware/Software/Linux/WinCE/Commercial Device Repurposing) : Busybox and Buildroot : http://www.elinux.org |
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| 20:56.00 | roxfan | freescale follows TI, announces $150 Cortex-A8 board |
| 20:56.03 | roxfan | http://www.linuxfordevices.com/c/a/News/Freescale-iMX537-and-iMX538-plus-Quick-Start-and-SABRE-kits/ |
| 20:59.15 | prpplague | roxfan: yea saw that this morning |
| 20:59.19 | prpplague | roxfan: like it? |
| 20:59.45 | roxfan | looks okay |
| 21:00.40 | roxfan | i found something more interesting linked from the imx community site |
| 21:00.45 | roxfan | http://eon.businesswire.com/news/eon/20110225006084/en/mobile-computing/emerging-markets/netbook |
| 21:01.16 | prpplague | looks |
| 21:01.24 | SpeedEvil | Interesting. |
| 21:01.37 | prpplague | roxfan: yea wmat mentioned that too |
| 21:01.46 | prpplague | roxfan: probably going to order one in mid march |
| 21:02.50 | roxfan | hmm no ethernet jack |
| 21:13.15 | SpeedEvil | I wonder what the software is lie. |
| 21:13.23 | SpeedEvil | The hardware iw regrettably the easypart. |
| 21:13.25 | SpeedEvil | is |
| 21:13.38 | SpeedEvil | wants a trackpoint. |
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| 21:37.59 | prpplague | anyone got a url on using low speed bus controllers like whats used in many laptops and such? |
| 21:38.51 | SpeedEvil | You mean the ... Oh what's it called. |
| 21:38.57 | SpeedEvil | 4 bit ISA bus clone? |
| 21:39.03 | SpeedEvil | low-pin-count. |
| 21:39.38 | roxfan | LPC |
| 21:39.45 | roxfan | "low" heh |
| 21:39.54 | roxfan | it's like 16 or 20 |
| 21:40.06 | SpeedEvil | Isn't it more like 10 active pins? |
| 21:40.09 | SpeedEvil | Anyway |
| 21:40.13 | SpeedEvil | It's lots lower than ISA :) |
| 21:40.18 | roxfan | i guess |
| 21:40.29 | roxfan | but still funny after you've seen I2C and SPI |
| 21:40.55 | SpeedEvil | Well - if it's gotta be backwards compatile onthe software side. |
| 21:41.23 | roxfan | prpplague: what exactly are you trying to do? |
| 21:41.24 | prpplague | this is a two wire interface that SMSC uses |
| 21:41.39 | prpplague | roxfan: need to interface with it |
| 21:41.40 | roxfan | hmm... smbus? |
| 21:41.56 | roxfan | interface with what? |
| 21:42.18 | prpplague | roxfan: thats what i was thinking but smsc calls it their "proprietary Low Speed BC interface" |
| 21:42.46 | roxfan | what does it connect to? |
| 21:43.06 | prpplague | roxfan: from keyboard matrix to x86 motherboard |
| 21:43.16 | prpplague | roxfan: basically a keyboard matrix decoder |
| 21:43.32 | SpeedEvil | bets on I2C. |
| 21:43.42 | roxfan | is it going to the EC? |
| 21:45.11 | roxfan | hm, their site mentions something called x-bus... |
| 21:46.07 | roxfan | nah, it has too many pins |
| 21:48.43 | prpplague | ok, i bet it is the BC-link |
| 21:51.43 | roxfan | this mentions bc-link: http://pdf1.alldatasheet.es/datasheet-pdf/view/312073/SMSC/CAP1028.html |
| 21:52.10 | roxfan | it seems you can also set it to use spi or i2c |
| 21:52.48 | prpplague | i can't access taht from here |
| 21:53.34 | roxfan | it's a "8 Channel Capacitive Touch Sensor with 2 LED Drivers" |
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| 21:54.06 | roxfan | here's what it says on bc-link: |
| 21:54.07 | roxfan | The BC-Link is a proprietary bus developed to allow communication between a host controller device to a companion device. This device uses this serial bus to read and write registers and for interrupt |
| 21:54.07 | roxfan | processing. The interface uses a data port concept, where the base interface has an address register, data register and a control register, defined in the SMSCs 8051s SFR space. |
| 21:54.07 | roxfan | Refer to documentation for the BC-Link comptabile host controller for details on how to access the CAP1028 via the BC-Link Interface. |
| 22:01.15 | roxfan | prpplague: do you have an SMSC controller or you just have the keyboard and you want to interface with it? |
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| 22:13.31 | prpplague | roxfan: smsc controler with keyboard |
| 22:14.09 | roxfan | then you need to access the controller... i don't think it matters what bus it uses |
| 22:14.32 | roxfan | if you know the specific model, check the coreboot project |
| 22:14.47 | prpplague | roxfan: thats what i'm seeing, but i wonder what procedure you use to tell it which protocol to use |
| 22:14.48 | roxfan | they have support for a couple of SMSC ECs |
| 22:15.09 | roxfan | well it has its own firmware which does all the low-level work |
| 22:15.33 | prpplague | roxfan: http://www.smsc.com/index.php?tid=256&pid=175 |
| 22:15.47 | roxfan | ah hm |
| 22:15.56 | roxfan | that's not an EC then |
| 22:16.06 | roxfan | is it connected directly to the CPU? |
| 22:17.54 | prpplague | roxfan: still looking |
| 22:18.03 | prpplague | roxfan: the actual model is ECE1077 |
| 22:19.53 | roxfan | http://www.elektronika.lt/_sys/storage/2010/08/12/DELL1330.pdf has it connected to MEC5025 |
| 22:19.55 | prpplague | roxfan: hehe found a cached page with a block diagram |
| 22:19.57 | roxfan | (an EC) |
| 22:20.46 | roxfan | so you probably have a similar setup |
| 22:21.23 | prpplague | yea |
| 22:21.46 | roxfan | the EC is seen from CPU side as a generic 8042 (port 60/61/64h etc) |
| 22:22.27 | prpplague | roxfan: EC ? |
| 22:22.34 | roxfan | embeddec controller |
| 22:22.39 | roxfan | *embedded |
| 22:23.05 | roxfan | a sort of sub-cpu that does various house-keeping stuff |
| 22:23.16 | prpplague | you talking about the MEC5025 ? |
| 22:23.29 | roxfan | yes |
| 22:24.13 | prpplague | dandy |
| 22:24.18 | prpplague | let me have a look |
| 22:24.28 | prpplague | i suspect that we don't have the MEC5025 side |
| 22:25.07 | roxfan | what IS the device anyway? |
| 22:29.49 | prpplague | roxfan: hehe a dell laptop |
| 22:29.56 | roxfan | hrm |
| 22:30.11 | prpplague | roxfan: looks like we are on the ece1077 side not the mec5025 side |
| 22:30.32 | roxfan | then it should have an EC... i really doubt the cpu would handle the gpio by itself |
| 22:31.39 | prpplague | roxfan: the EC is on the motherboard |
| 22:31.45 | prpplague | roxfan: found it |
| 22:31.54 | roxfan | cool |
| 22:32.16 | prpplague | roxfan: looking at that block diagram |
| 22:32.39 | prpplague | roxfan: the BC link and the ps2 interface are on one cable that plugs into the mb with the EC |
| 22:34.47 | prpplague | roxfan: this is closer - http://notebookschematic.com/wp-content/uploads/2010/06/E4300.png |
| 22:35.41 | roxfan | hmm lots of extenders |
| 22:35.53 | prpplague | roxfan: problem now is there no real way of use using the bc-link |
| 22:36.05 | roxfan | so you want to sniff the BC bus or what? |
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| 22:59.36 | prpplague | roxfan: thanks for the google foo |
| 22:59.41 | prpplague | roxfan: yea |
| 22:59.53 | prpplague | roxfan: basically we need to be able to interface it to an arm device |
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| 23:17.55 | roxfan | sounds tricky |
