| 00:50.41 | MegaMahi | yo GPSFan you around? |
| 00:55.30 | GPSFan | MegaMahi: hey, I'm here.. |
| 01:00.15 | MegaMahi | figured how to get the Media LED going, but im using the DENX 2.4 kernel(using IBM_ocp_gpio driver) |
| 01:00.36 | MegaMahi | so ill see about getting a small app together that just does the poking to turn it on and off |
| 01:01.17 | GPSFan | MegaMahi: cool,I never got around to fiddling with the ibm_gpio driver. |
| 01:01.42 | MegaMahi | its seems to only bee in the DENX linuxppc kernel |
| 01:02.06 | MegaMahi | but i have the ememory address and what to put |
| 01:02.16 | GPSFan | could be.. |
| 01:02.37 | MegaMahi | havent seen it in the vanilla kernel from kernel.org |
| 01:02.47 | MegaMahi | had to get it off Denx's ftp |
| 01:03.04 | MegaMahi | makes a little /dev/ for it |
| 01:03.12 | GPSFan | I think that's where I dl'd it too, but never merged it in. |
| 01:03.21 | MegaMahi | ah |
| 01:03.35 | MegaMahi | ive just been playing with kernels |
| 01:04.01 | GPSFan | cool, I updated mine to 2.6.16 when it was released. |
| 01:04.29 | MegaMahi | ah still using i think rc3 or 6 whatever you posted the .config for |
| 01:04.45 | GPSFan | first time I've had a current kernel on an embedded project. ;>) |
| 01:05.31 | MegaMahi | ah |
| 01:05.51 | MegaMahi | ive just been farting around with it |
| 01:06.00 | MegaMahi | i cant figure out what J5 is |
| 01:06.35 | MegaMahi | tracing the lines back slowly and it doesnt make sense |
| 01:06.40 | GPSFan | ah, can't help there, never rang any of it out. |
| 01:06.46 | GPSFan | where do they go? |
| 01:06.51 | MegaMahi | uh |
| 01:07.33 | MegaMahi | Pin 3 went back to /WE |
| 01:07.49 | MegaMahi | and that also traced to the ram slot in some area |
| 01:07.50 | MegaMahi | s |
| 01:08.12 | MegaMahi | i might be missing something im jsut messing with a continuity meter |
| 01:08.24 | MegaMahi | i dont have a scope(yet) |
| 01:09.02 | MegaMahi | but 7 of the pins seem to be pushing about 3.5V all times |
| 01:09.30 | GPSFan | ah, after the jtag conn was determined to be J10, I sort of lost interest in J5. still curious though. |
| 01:09.37 | MegaMahi | still no clue where I2C is if its even wired. If there is a trace for it some where it could be possible to put a RTC on here |
| 01:10.01 | GPSFan | it's wired to the sdram slot, 'cause they read out the eeprom with it. |
| 01:10.43 | GPSFan | it also goes to U2 which is a rtc, but not populated. |
| 01:11.20 | MegaMahi | ya |
| 01:11.47 | MegaMahi | be nice to get a chip for that |
| 01:11.53 | MegaMahi | or atleast the neede components |
| 01:12.45 | MegaMahi | then theres J2 and JP1 which are just odd |
| 01:12.56 | GPSFan | I think someone determined that it was a MAX'something-or-other due to the pin connections. |
| 01:13.22 | MegaMahi | U2? |
| 01:14.14 | joe_bleau | U2: max6900. Can't seem to get their sample site to work. |
| 01:14.27 | MegaMahi | hm |
| 01:15.01 | joe_bleau | I think U6 is a remote control style IR receiver |
| 01:15.41 | MegaMahi | hmm |
| 01:16.50 | GPSFan | joe_bleau: the only samples of taht part are in the TDFN package, I don't know if that's what we have or not.. |
| 01:17.23 | joe_bleau | They had production problems with the package style used on the DHT, so it's been discontinued. |
| 01:17.37 | joe_bleau | I think you can still order them, but you have to sign a waiver. |
| 01:17.50 | joe_bleau | That said, the other package is supposedly compatible. |
| 01:18.27 | MegaMahi | hmm if the I2c goes to that pad then its possible to not just use that for RTC |
| 01:18.53 | GPSFan | joe_bleau: k, haven't really cared since I get time for my dht from the network. |
| 01:19.18 | joe_bleau | I've been meaning to scab a DS1307 on at work someday, but haven't made the time yet. |
| 01:19.38 | joe_bleau | I do have the diodes on hand to populate the power supply section for the RTC |
| 01:19.39 | GPSFan | time? what's that??? |
| 01:20.00 | MegaMahi | ive been fake setting it in my init.d |
| 01:20.01 | joe_bleau | and hundreds of new RFE BR1225 coin cells |
| 01:24.32 | joe_bleau | U12 pin 10 drives the media led? |
| 01:25.08 | MegaMahi | mem address 0xef600704, throw 0x2 at it |
| 01:25.32 | joe_bleau | Hey, nice! |
| 01:26.37 | GPSFan | MegaMahi: will you update the wiki with the info on the media led? |
| 01:26.54 | MegaMahi | yup in a sec |
| 01:27.03 | joe_bleau | That's the GPIO tri-state regsiter. |
| 01:27.05 | joe_bleau | Interesting. |
| 01:27.06 | GPSFan | thanks, |
| 01:27.17 | joe_bleau | I hit all the GPIO lines and don't ever remember seeing the media led blip. |
| 01:28.12 | GPSFan | maybe that's a result of a default setting, maybe you need to hit the tri-state reg and the data reg too with the proper values. |
| 01:28.29 | MegaMahi | ya i looked at the ppcboot_116.config for any hints |
| 01:28.38 | MegaMahi | then just bashed arround |
| 01:28.41 | joe_bleau | I musta screwed up. No notes, but I'm almost certain I set the sucker to all outputs and went both high and low |
| 01:28.51 | joe_bleau | Still, that's pretty exciting info. |
| 01:28.58 | GPSFan | indeed |
| 01:29.37 | MegaMahi | could the tristate buffer be a mask of sorts, ANDing the data(0xef600700) with itself? |
| 01:29.39 | MegaMahi | or something |
| 01:30.32 | MegaMahi | gonna play with it more later |
| 01:31.04 | MegaMahi | be nice to find where on the bottom of the board the other ones go |
| 01:31.50 | joe_bleau | You know what else is odd? The GPIO uses bits 1:23, but shouldn't writing 0x02 flip bit 30? |
| 01:33.29 | MegaMahi | hmm |
| 01:33.57 | joe_bleau | Not doubting you, just confused. |
| 01:34.12 | joe_bleau | I'm not set up to debug at the moment, or I'd pull up OCD and double check it. |
| 01:34.14 | MegaMahi | hmm |
| 01:35.02 | MegaMahi | if i set the output register(4 bytes) to FFFFFFFF |
| 01:35.18 | MegaMahi | and the tristate to 20000000(like i would to rurn on the LED |
| 01:35.24 | MegaMahi | turn* |
| 01:35.30 | MegaMahi | nothing happens |
| 01:35.47 | MegaMahi | till i change the output register |
| 01:35.59 | joe_bleau | The LED is active high, I think. |
| 01:36.11 | MegaMahi | the LED is gonig thru a 74VCT14 |
| 01:36.15 | joe_bleau | the 'hc14 inverts |
| 01:36.21 | MegaMahi | ya |
| 01:36.29 | joe_bleau | so setting the tristate high and taking the output low should turn it on |
| 01:36.50 | MegaMahi | yup(forgot that chip was in its way) |
| 01:37.06 | joe_bleau | (tristate high: active drive, tristate bit low: hi-z) |
| 01:37.35 | joe_bleau | Wait, do you write 0x2 or 0x20000000? |
| 01:38.25 | MegaMahi | i write 20000000 to change the whole thing |
| 01:38.35 | joe_bleau | Ah, ok. |
| 01:39.15 | joe_bleau | That's definitely a GPIO. I was thinking 0x00000002 earlier...sorry. |
| 01:39.32 | MegaMahi | no prob |
| 01:41.12 | MegaMahi | should see about getting a RTC or something for the I2C, have yet to play with that system |
| 02:25.07 | MegaMahi | added the mediaLED stuff to the wiki, edit it if i messed/missed something |
| 02:38.20 | GPSFan | MegaMahi: cool, it also works in ppcboot 1.1.6.1 as well as uboot.. |
| 02:57.28 | MegaMahi | ya id figure any version with nm or mm commands should work, its just poking memory |
| 02:57.50 | MegaMahi | ill have to try it on one of my untouched boards |
| 03:02.54 | sunrunner20 | whee |
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| 17:00.24 | jbevren | two days after you send payment? |
| 17:00.26 | jbevren | er |
| 17:00.28 | jbevren | wrong window |
| 17:03.05 | prpplague | doh |
| 17:03.14 | prpplague | jbevren: is that for a russian bride? |
| 17:04.09 | jbevren | yep! |
| 17:04.11 | jbevren | $.50 |
| 17:04.14 | jbevren | theyre on sale |
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