irclog2html for #elinux on 20030330

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03:04.19chouimatwow busy #channel
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08:39.35MuscleNerdsorphin you around?
08:42.50MuscleNerdyou around gpsfan?
08:43.54MuscleNerdhe asked me to look at the dct-5000 boot prom so i got some stuff he might find useful
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15:47.52filehi GPSFan
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17:58.37GPSFanhi file:
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18:23.24chouimathii guys
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21:41.47sorphin.
21:44.00GPSFan..
21:44.30TomW...
21:44.49kergoth....
21:45.35TomWWell, now that we have held the rollcall, we can proceed with the meeting.
21:45.41TomW:D
21:45.58GPSFanmost activity we've had this weekend...
21:46.21sorphinheh
21:46.28sorphinwell, i've been out of town, remember? :P
21:46.32TomWhmm, I've been working this weekend, you mean to say that the others have the weekend off?
21:46.47TomWnovel idea...
21:46.59TomWnot working weekends!
21:48.09GPSFanTomW: sorphin's friend eric ( MuscleNerd ) has looked at the disassembled dct5000 code and found where the serial port is talked to. we have been missing each other since fri afternoon, he may be back on line tomorrow.
21:48.22chouimathi guys
21:48.25TomWha
21:48.41sorphinGPSFan: or there's email or botmail :P
21:48.45TomWGPSFan: the serial port, you mean the front panel?
21:48.52sorphinTomW: no
21:48.59sorphinTomW: the one on the back :P
21:49.03TomWk
21:49.05GPSFanTomW: no the 16550 in th ali chip.
21:49.15TomWcool
21:49.37GPSFansorphin: didn't want to disrupt his weekend.
21:50.27TomWI wonder how fast that rom access time is?  I have a RAM-based EPROM emulator.  Wonder if I can wire something up to interface it into the DTC5000 so I can download code rapidly into it for testing?
21:51.02sorphinGPSFan: heh
21:51.06chouimatanyone know a good electronic book for self teaching?
21:51.08sorphinGPSFan: that's the only way to catch eric :P
21:51.13sorphinhe disappears a lot
21:51.28GPSFansorphin: k
21:51.46GPSFanto the macronix datasheet says 100ns
21:52.06TomWGPSFan: good, 100ns is fine.
21:52.15sorphintypical
21:52.36GPSFanTomW: eric said he had also picked out about 150 different "functions" in the rom code.
21:52.38sorphina lot of the flash i mess with is 90-100ns
21:53.23TomWchouimat: nope, I learned by wiring stuff together and then figured out why it didn't work..
21:53.32GPSFansorphin: I guess eric did quite a bit of disassembling of the tvio code.
21:53.43sorphinwell
21:53.49sorphinsome
21:53.55chouimatTomW: ok I think it's better than the twit I had in university
22:01.22TomWGPSFan: at least, with the I/O address of the ALI chip, we have a fingernail into the system.
22:01.43GPSFanyep.
22:02.09TomWit will be an interesting process to locate the other hardware.
22:02.57GPSFanTomW: once we can load an executable into the box, we can write test code to probe the memory space for other hardware.
22:05.39TomWyup
22:07.14GPSFanypu might be able to con macronix out of a 29L1611G and put your own code in place of the boot rom, although you will probably want to steal the initialization code.
22:13.55MonMothaoh, I'm here too btw :)
22:14.07sorphinMonMotha: so? ;)
22:14.19MonMothaheh
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22:23.05TomWMonMotha: sorry, you missed the rollcall, you aren't supposed to be here.
22:23.17MonMothaheh
22:23.25MonMothaok, then
22:23.26MonMotha.....
22:23.32TomWsee, Morn left.
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22:23.37TomWheh
22:23.39MonMothaheh
22:23.41GPSFanMonMotha: that's better hi..
22:23.47MonMothahi
22:23.51MonMothasorry, was working on a toy project
22:24.05TomWok, you're excused then
22:24.08MonMothahttp://monmotha.mplug.org/hardware/micro/s3500002.jpg  <--- not that I have any idea how well it will worko n a breadboard
22:25.22TomW80C451?
22:25.40MonMothayep
22:25.46MonMothaexpanded IO version of an 80C51
22:25.51TomWI thought that went EOL 2 years ago?
22:26.24MonMothaprobably did
22:26.31TomWI was using the PGA68 version of that in a few designs.  
22:26.33MonMothaI just picked it up at a local store
22:26.57TomWWhat advantage does it give you in the 40 pin version?
22:27.12MonMothathat's 64pin DIP :)
22:27.47TomWoh, ok, kind of looked like it had more than 40 pins.  :D
22:27.51TomW:/
22:28.20TomWit was a nice processor, lots of I/O ports.
22:29.02TomWIIRC, after the basic ROM & RAM wire-up, you were left with 38 pins for I/O
22:29.27MonMothaTomW: oh yeah...has 6 IO ports
22:29.39MonMothathough one is only 4 bits in the DIP version (it's 8 bits in the PLCC version)
22:30.18TomWI have 15..20 of the PGA68 devices here.
22:30.49MonMothaheh, nice
22:31.37TomWyeah, but, I was selling a Ham Radio Repeater controller a few years ago when parts on the board started going EOL.
22:32.13TomWI made out "ok", but got stuck with about $1800 in parts that I'll probably never use.
22:33.16TomWit had a TI 53C30 speech chip on it that was a central component in the design.  When that went EOL, there was no replacement for it, so the product died.
22:33.34sorphinTomW: speech chip eh?
22:34.06TomWyeah, it did phonem generation: squack, gurgles, hoots...
22:34.13TomWhiss
22:34.49sorphinheh
22:35.00TomWnot like the chips they are pushing now where they digitize the phrases into a ROM and spit it back.  as in: "please take your ticket"
22:36.09sorphinTomW: i want the phonem kind
22:36.15sorphina real "voice box"
22:38.22TomWsorphin: http://www.openhardware.net/mp100/manual/Vocabulary.html
22:39.40MonMothaTomW: yeah, I saw that on your site a while back
22:40.14MuscleNerdi have some results of that prom thing sorphiin
22:40.23GPSFanhi eric..
22:40.27MuscleNerdhey ken
22:40.52sorphinMuscleNerd: wow. you might actually be a regular again ;)
22:40.56MuscleNerdi can give you all a table of the addresses of 85 or so routines, with names i gave them
22:41.27MuscleNerdheh
22:41.35GPSFan;)
22:42.10MuscleNerdthe rom image is very very basic by the way...most of the meat dealing with booting up an OS are *not* in the image...it's cool how it's set up to receive such a bootloader from the network, but it's not in the prom image itself
22:43.16MuscleNerdi cant dcc out so im not sure how to get this symbol file to you
22:43.24sorphinemail
22:43.36GPSFanso does there seem to be a way to load some code in via the serial port or some other means?
22:43.53GPSFanMuscleNerd: then we can post it to the wiki.
22:44.02MuscleNerdi can give you the addresses of the serial port by the way..but no, theres definitely no way to boot from the serial port itself
22:44.06sorphinGPSFan: something tells me it's gonna be jtaging
22:44.17GPSFansorphin: yep
22:44.26MuscleNerdok sure...where can i email it
22:44.33MonMothaor a chip swap...JTAG probably easier ;)
22:44.48MonMothathe boot rom is at least socketed
22:45.54MuscleNerdare you guys aware of the ability to do a "cold" reset and completely wipe out your nvram state...so that it starts from network
22:46.01GPSFanMuscleNerd: email to any of us we'll pass it around.
22:46.40MuscleNerdyep i just got dan's address but i'll send it to anyone else too
22:46.41GPSFanMuscleNerd: we knew there was a cold reset function but not what it did.
22:46.49GPSFankenm@paonia.com
22:48.46GPSFanMuscleNerd: when you say starts from network, do you mean the cable modem interface?
22:48.55MuscleNerdyeah
22:49.03GPSFancool
22:49.15MuscleNerdwell cool if yo ucan control what's on that coax :)
22:49.42MuscleNerdif you *can* control the coax, you have tottal control over the box tho..no need to unsocket prom or anything
22:49.47MuscleNerdyou can make it update before it boots
22:50.05MuscleNerdok sent it to you guys
22:50.44MuscleNerdheh i can tell you all about how to make your own messages on the LEDs though :)
22:50.50GPSFanMuscleNerd: eric that's great thanks a lot!
22:52.05MuscleNerdsure thing :)
22:52.30MuscleNerdI can also tell you a bit about that SUDB dump you see on the serial port
22:52.36MuscleNerdwhat the data means
22:52.40fileMuscleNerd: sounds like you've given the DCT-5000 hackers a shot of adrenaline
22:52.48MuscleNerdheh
22:53.24MuscleNerdif only i had a box :)
22:53.35sorphinhehe
22:53.35filehehe
22:53.43sorphinwell, i did buy 2 ;)
22:54.21MuscleNerdi honestly still have no clear idea what the box does by the way...i haven't seen a whole lot of literature on it
22:54.59sorphina lot
22:55.16sorphinthe offspring of it.. (i.e. the 5200) does pvr
22:55.38sorphinfrom what i've read about it, it's meant to do a lot of content stuff too
22:55.58MuscleNerddoes like best buy sell them?  where can i see one
22:56.07sorphinno
22:56.29sorphinwe bought them from tim riker (owner of this channel, former lineo CTO and current TI linux boy)
22:56.44GPSFanMuscleNerd: http://elinux.org/wiki/DCT5000
22:56.59sorphinGPSFan: should do a chip thing like that dct2k page does
22:57.02MuscleNerdyeah i've been reading that
22:57.26MuscleNerdreading wiki i mean
22:59.05GPSFansorphin: tim may still have that one he was holding for CP.
22:59.13sorphinyeah
22:59.18sorphini think he does
22:59.30GPSFanbut I think he is im "moving mode" atm.
23:00.08sorphinya
23:03.33GPSFanbbl
23:31.46chouimatwow! a 4004
23:32.32sorphinhuh?
23:32.49chouimatsorphin: just found a very old calculator with a intel 4004 cpu
23:33.15sorphinnod
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