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| 00:36.28 | alex4nder | f1yback: I have forth on my boards, for that exact reason. |
| 00:41.11 | f1yback | what's the downside to using forth in the firmware? |
| 00:51.14 | f1yback | i'm liking your head more and more |
| 00:51.21 | f1yback | I mean your idea |
| 00:51.21 | f1yback | heh |
| 00:51.24 | f1yback | it's been a long week |
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| 00:51.32 | f1yback | just a bootloader |
| 00:54.36 | f1yback | only thing is |
| 00:54.47 | f1yback | with not knowning anything about how this board is made up |
| 00:54.52 | f1yback | but I did find "TX" from uart0 |
| 00:54.58 | f1yback | is a bootloader going to be able to come up |
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| 00:57.41 | f1yback | I guess since that's soc it should always be the same |
| 01:15.06 | alex4nder | f1yback: the downside is that no one really knows what to do with Forth |
| 01:15.13 | alex4nder | I like to use it as a bootloader. |
| 01:16.24 | f1yback | yeah mabye I will go with u-boot |
| 01:30.41 | alex4nder | f1yback: I ended up buying MPE Forth for my ARM boards. |
| 01:36.14 | f1yback | im sure it's worth it |
| 01:36.23 | f1yback | but this is just fun hobby stuff for me |
| 01:37.17 | alex4nder | cool. |
| 01:37.40 | alex4nder | then yah, I'd just get u-boot, or compile a quick C prog that sends 0x42 to the UART. |
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| 01:44.36 | f1yback | well first |
| 01:44.40 | f1yback | I need to setup a linux box :P |
| 01:44.46 | f1yback | and decide on a linux first :P |
| 01:44.57 | f1yback | been a while since I did this :P |
| 01:49.21 | alex4nder | werd |
| 01:49.52 | alex4nder | I'd recommend Debian, and crosstool |
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| 02:22.50 | f1yback | i'd go with ubuntu or redhat based |
| 02:22.51 | f1yback | mabye gentoo |
| 02:23.03 | f1yback | since I can temp put a remote management card in my mini-itx |
| 02:23.08 | f1yback | I might warm up to gentoo |
| 02:25.30 | alex4nder | ubuntu is just debian with an automatic transmission. |
| 02:27.52 | f1yback | which is great when you have arthritus |
| 02:29.56 | f1yback | my mind is going downhill and I am only 36 |
| 02:30.06 | f1yback | so I rather not waste my mental energy on a damn distro :P |
| 02:32.04 | f1yback | I used to do it all the time |
| 02:32.51 | f1yback | I rather get hammered mentally hacking linux into my dead palm t5 mb since the mb itself still works fine |
| 02:32.51 | f1yback | etc |
| 02:33.06 | f1yback | I mean I want a efficient distro but I am not going to waste my life over it |
| 02:33.14 | f1yback | I heard there's a gentoo with a build script |
| 02:33.19 | f1yback | you can setup then let it roll |
| 02:33.51 | f1yback | I don't mind building stuff I just don't want to spent 3 hrs editing .conf files |
| 02:38.13 | alex4nder | I think you're overthinking this a bit. |
| 02:38.23 | alex4nder | install disk -> machine -> install |
| 02:38.49 | f1yback | or doing what I am doing right this min |
| 02:38.49 | alex4nder | I just don't use Ubuntu because they're big on glitz, but they make stupid mistakes (like not installing CA root certs by default, breaking curl) |
| 02:38.50 | f1yback | http://webdevsys.com/lightsOut.htm |
| 02:38.54 | f1yback | hacking one of these up |
| 02:39.09 | f1yback | cause they are dirt cheap on ebay |
| 02:39.17 | f1yback | like $30 new for series II card with all the cables |
| 02:39.33 | f1yback | wiring up the relay on them to PS_ON right now |
| 02:43.02 | f1yback | anyways bbl |
| 02:43.07 | f1yback | thxz |
| 02:43.43 | f1yback | HAHAHAAH |
| 02:43.45 | f1yback | that's so sweet |
| 02:43.55 | f1yback | web browser - login - remote on/remote off |
| 02:43.55 | f1yback | :) |
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| 04:57.57 | tsm_ice9 | hi.. anybody know anything about compiling elf code for a ROMless CPU? |
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| 05:28.03 | alex4nder | tsm_ice9: ROMless? |
| 05:28.17 | alex4nder | like, your text sections are in RAM? |
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| 05:29.39 | tsm_ice9 | yes |
| 05:30.04 | tsm_ice9 | everything is in ram |
| 05:31.48 | tsm_ice9 | I have an FPGA which holds the CPU in reset, and loads the code into RAM, then gives the bus over to the CPU and releases the reset... on the scope I can see the CPU "read" signal pulsing, but the program won't run as expected |
| 05:32.54 | tsm_ice9 | wondering if I needed to do something extra with the linker script or the startup code.. |
| 05:42.07 | alex4nder | oh. |
| 05:42.22 | alex4nder | who wrote your linker script? |
| 05:43.03 | tsm_ice9 | well, I tried two programs |
| 05:43.15 | tsm_ice9 | one I borrowed from the net, and it was maid for th flash ROM version of the same CPU |
| 05:44.01 | tsm_ice9 | and one was written by one of my labmates using the Windows IDE provided by the chip vendor (Renesas), and he just used whatever linker script the IDE put there for him |
| 05:44.16 | tsm_ice9 | maid? hah.. made |
| 05:45.14 | tsm_ice9 | but, in the mode with no internal ROM, the external ram gets mapped to the address space that the ROM would have been |
| 05:45.27 | tsm_ice9 | so I figured as long as the code started at address 0x00000000 then it would be ok |
| 05:53.37 | tsm_ice9 | the linker script puts the startup code at address 0x0, text sections and rdata after that |
| 05:54.19 | tsm_ice9 | then there's .data at FFFFE000 |
| 05:54.27 | tsm_ice9 | which is the CPU's internal SRAM |
| 06:00.19 | tsm_ice9 | ah and the stack pointer is the last 4 bytes of the internal SRAM |
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| 06:27.40 | tsm_ice9 | hmm gotta go to my other computer... will probably be back.. |
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| 08:04.54 | tsm_ice9 | alex4nder, looks like this issue I'm having might have to do with the physical memory bus rather than the linker script and such... |
| 08:06.01 | tsm_ice9 | I tried shit-rigging the bus up to an independent memory chip, to write whatever is on the bus when the CPU tries to do a read operation, but all I'm seeing is 0xFFFF |
| 08:41.03 | tsm_ice9 | oh... huh. A couple of the upper bits in the CPU's external address buss are NOT initialized on reset as address bits, but rather as GPIO, set to inputs.. this could be a problem :p |
| 09:20.09 | tsm_ice9 | alright, it worked :D hah |
| 09:21.58 | SpeedEvil | :) |
| 09:30.47 | tsm_ice9 | the address bits and the ordering of bytes in the hex file were the issues, apparently |
| 09:32.43 | SpeedEvil | is trying to get up the energy to do more powersaving investigations on his n900 |
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| 09:36.55 | tsm_ice9 | n900 huh? |
| 09:37.31 | tsm_ice9 | does that run android, or some other linux kernel? |
| 09:37.57 | SpeedEvil | maemo. |
| 09:38.07 | SpeedEvil | It's basically debian, screwed with a lot. |
| 09:38.10 | tsm_ice9 | ah ok |
| 09:38.19 | SpeedEvil | And actually open. |
| 09:38.28 | tsm_ice9 | I picked up an android phone last week, but I haven't gotten around to messing with it at all |
| 09:38.42 | SpeedEvil | (in the sense of all hw drivers are open (well - apart from gfx), you get root - and can replace anything |
| 09:38.55 | tsm_ice9 | haha well that's pretty awesome |
| 09:39.17 | SpeedEvil | Currently trying to get on-device building working |
| 09:39.54 | SpeedEvil | Powersaving is awesome. 10mA idle - with a 200ms ping over wifi. |
| 09:40.52 | tsm_ice9 | I gotta say I'm pretty impressed with the openness of some of the widely available handsets over the last year or so |
| 09:41.49 | tsm_ice9 | they're doing a good job of giving us absolutely no reason to buy from Apple, other than the possible thrill of insubordination :D |
| 09:42.00 | SpeedEvil | I'm not sure any has gotten quite to the n900s level - click to enable 'extras' repo - install 'rootsh' - and there you go - root. |
| 09:42.27 | SpeedEvil | (xterminal is listed on the apps pages by default and gives you a user shell without doing anything) |
| 09:48.29 | tsm_ice9 | huh.. I was wondering if there was a terminal app for android but I haven't gotten around to looking for it |
| 09:48.50 | tsm_ice9 | woulda been the first thing I'd like to do, but things are pretty busy and I lack motivation :( |
| 09:49.18 | SpeedEvil | android in many ways is ... odd. It's linux - but not as we know it. |
| 09:49.49 | tsm_ice9 | I dunno much about it yet |
| 09:50.46 | tsm_ice9 | installing a terminal emulator now though.. we'll see what happens :D |
| 09:51.24 | tsm_ice9 | hmm.. crashed on startup |
| 09:52.35 | tsm_ice9 | aha.. somebody else's app works though |
| 09:53.58 | tsm_ice9 | alright I'm outta here.. I stayed up late for a couple nights, and now my hardware works, I'm taking a break :D haha |
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| 20:05.15 | f1yback | so |
| 20:05.18 | f1yback | arm7tdmi |
| 20:05.22 | f1yback | can I run u-boot |
| 20:05.49 | f1yback | the samsung chip btw the one that was loved here |
| 20:05.57 | f1yback | 4510 |
| 20:06.26 | f1yback | hi prpplague :) |
| 20:06.30 | f1yback | check out my find |
| 20:06.55 | prpplague | u-boot will run on arm7tdmi |
| 20:07.03 | prpplague | but apex is a better choice, imho |
| 20:07.06 | f1yback | oh? |
| 20:07.18 | f1yback | will it be able to init the serial pins by default and let me load stuff into ram |
| 20:07.49 | f1yback | lost the url (@&#(@&(*# |
| 20:07.49 | f1yback | brb |
| 20:07.50 | prpplague | yea |
| 20:10.43 | f1yback | linksys befsr41b v1 |
| 20:10.45 | f1yback | only this revision |
| 20:10.50 | f1yback | it's 2 boards |
| 20:11.02 | f1yback | first board is 5 port switch chip, switch ports and smps |
| 20:11.07 | f1yback | and top board is this little gem :) |
| 20:11.08 | f1yback | http://imgur.com/vupIG&D86Xl&6R5in |
| 20:11.59 | f1yback | that 34 pin header is the connection between the 2 so there's likely at least a few gpio off there |
| 20:12.39 | f1yback | 1mb ram, but it's j-lead so I could probably replace them |
| 20:12.53 | f1yback | 512kb plcc flash rom but pad for 2nd one, so 1024kb for sure |
| 20:13.07 | f1yback | mabye more I have to find the jedec spec for 32 pin plcc the max addressable |
| 20:13.22 | f1yback | probably not a great uclinux or wince target but for freeRTOS or contiki, hey |
| 20:13.34 | f1yback | serve as a nice ethernet to goio, ethernet to serial, etc bridge board |
| 20:14.15 | f1yback | for now i'd be happy if I just get something into the flash to say hello |
| 20:14.22 | f1yback | you have the url fro apex? |
| 20:15.20 | f1yback | nm |
| 20:15.46 | f1yback | wow apex sounds nice :) |
| 20:15.58 | f1yback | now I just need a linux box to compile it :/ |
| 20:16.06 | f1yback | lost 2 hd's the last month so hmm |
| 20:16.08 | f1yback | ponders |
| 20:17.12 | f1yback | ugh |
| 20:17.20 | f1yback | I think my esxi box died for good |
| 20:19.31 | f1yback | ok this project is on hold for a bit :/ |
| 20:19.34 | f1yback | thx for the help prpplague |
| 20:21.07 | Mirell | Hmm.. |
| 20:21.40 | Mirell | f1yback: Linksys what? |
| 20:21.49 | f1yback | befsr41b version 1 only |
| 20:21.53 | f1yback | 2 and up are single board |
| 20:21.53 | Mirell | What is that. |
| 20:22.00 | f1yback | old cable/dsl router |
| 20:22.04 | f1yback | it sucks hard as one btw |
| 20:22.10 | Mirell | Ahh |
| 20:22.12 | f1yback | but it's a nice devel board |
| 20:22.13 | Mirell | Poor Linksys. |
| 20:22.14 | f1yback | look at it |
| 20:22.24 | f1yback | plus the bottom board you can keep using as a 5 port switch |
| 20:22.33 | f1yback | works fine without the router board |
| 20:22.35 | Mirell | I've already got about five different Linksys boards plus debug cables and JTAG stuff laying around |
| 20:22.56 | f1yback | well I have a vast assortment of dead or useless routers some just need recapped |
| 20:23.03 | f1yback | and I am thinking about using them for projects |
| 20:23.17 | f1yback | since I don't have that great of solder skills even with my smt station I bought last yr |
| 20:23.34 | f1yback | i've also suffered a loss of dexarity the last 6 months pretty bad so I dunno if it's going to improve |
| 20:23.43 | Mirell | I still need to learn to solder. |
| 20:23.53 | f1yback | eventually I might get to the point I make my own boards or have modules made and put them together |
| 20:24.03 | f1yback | I got a aoyue 968 for $159 last yr |
| 20:24.04 | f1yback | I love it |
| 20:24.17 | f1yback | I just need to get a new tip and better flux |
| 20:24.57 | f1yback | prpplague, I hope you have started playing with zigbee |
| 20:25.00 | f1yback | because it's the shit :) |
| 20:25.03 | Mirell | Yah, I've got a decent soldering iron |
| 20:25.06 | f1yback | oh |
| 20:25.07 | Mirell | I just suck at soldering. |
| 20:25.13 | f1yback | well you can get a cheaper aoyue that is hot air only |
| 20:25.16 | f1yback | I didn't have either |
| 20:25.23 | f1yback | man even being a cheap chinease unit |
| 20:25.31 | f1yback | 100x better than radioFAIL unregulated irons :) |
| 20:25.37 | prpplague | f1yback: too busy |
| 20:25.41 | Mirell | I need to buy one of the "Teach yourself how to solder" kits. |
| 20:25.44 | f1yback | prpplague, well sometime when you get a chance :) |
| 20:25.46 | f1yback | you should |
| 20:26.03 | f1yback | my friend works for ember |
| 20:26.18 | f1yback | very low power wireless |
| 20:26.45 | f1yback | 2 devices can talk to each other and go "you know what. I only need status feedback once an hr" and set their power profiles and wireless ttl, etc according to that |
| 20:27.07 | f1yback | also can handle noise levels where bluetooth and wifi vomit all over themselves and die |
| 20:27.33 | f1yback | Mirell, |
| 20:27.39 | f1yback | there is a s***load of that on youtube |
| 20:27.43 | f1yback | espically from sparkfun |
| 20:28.47 | f1yback | i'm starting to suspect my solder is as bad as my flux is |
| 20:30.22 | f1yback | if I suddentely stop talking it's nothing personal, if the high winds here cause a power outage I Might have to drive 2miles to work to make sure all our gear shuts itself down properly and help get the gen hooked up |
| 20:31.01 | f1yback | prpplague, btw bluetooth the new spec has a zigbee style class now |
| 20:31.04 | f1yback | low power mode etc |
| 20:31.11 | f1yback | dunno how well it compares |
| 20:32.40 | f1yback | lemme see if I can find a hd to get my esxi box going |
| 20:32.51 | f1yback | then I can get a prebuilt linux vm to build apex on |
| 20:32.56 | f1yback | rummadges |
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| 22:04.44 | f1yback | yay |
| 22:04.53 | f1yback | found a 40 gig hd I can use to restore my esxi box |
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