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| 03:37.03 | MisterBIOS | hi folks |
| 03:37.40 | MisterBIOS | I recently acquired a DHT Walnut PPC eval board and can't seem to get any serial output from it when I power it up. It does power up and I do get ethernet link when I plug in a cable, so it's nominally working |
| 03:44.33 | joe_bleau | DTE vs. DCE? Baud rate? |
| 03:45.21 | MisterBIOS | I've tried all the baud rate settings, to no avail. Even hooked it up to a scope |
| 03:46.59 | joe_bleau | Hmm. Has it been hacked on previously? Maybe someone removed the bootloader? |
| 03:47.40 | MisterBIOS | joe_bleau: yes its possible, I ahve no idea honestly, since it was an eBay item |
| 03:47.51 | joe_bleau | I don't remember if it'll boot without ram. |
| 03:48.00 | MisterBIOS | there's RAM, the stock amount. |
| 03:48.05 | joe_bleau | Wow. Haven't heard of any for sale in quite some time. |
| 03:48.05 | MisterBIOS | the original one-sided 32MByte DIMM |
| 03:48.09 | MisterBIOS | I would presume I wouldn't get physical link if that were the case, but that's perhaps |
| 03:48.15 | joe_bleau | Is the flash chip labelled? |
| 03:48.17 | MisterBIOS | a bad assumotion |
| 03:48.26 | MisterBIOS | yeah, it's the original AMD PPCBoot |
| 03:48.53 | joe_bleau | Hmm. |
| 03:49.00 | joe_bleau | Got jtag? |
| 03:49.13 | MisterBIOS | I do have a wiggler, would need to solder a header on there |
| 03:49.29 | MisterBIOS | actually I ahve a wiggler and a BDI2000 |
| 03:49.32 | joe_bleau | As I recall, you'll probably need to run ocd commander + winders to do the deed. |
| 03:49.36 | MisterBIOS | probably easier to use the wiggler |
| 03:49.41 | MisterBIOS | its a wiggler knockoff |
| 03:49.42 | joe_bleau | Ah, BDI. Got PPC firmware for it? |
| 03:50.00 | joe_bleau | (I used a Olimex wiggler clone with mine back in the day.) |
| 03:51.23 | MisterBIOS | the BDI, unfortunately not. It came with MIPS32 firmware |
| 03:51.27 | MisterBIOS | which makes it relatively useless |
| 03:51.42 | MisterBIOS | I wish I'd known that before I bought it, alas |
| 03:52.02 | joe_bleau | Oh well. The wiggler worked for me, so you're not dead in the water. |
| 03:52.29 | MisterBIOS | yup, I'm just gonna flash it with U-boot |
| 03:55.46 | joe_bleau | Sounds like a plan. The instructions appear to be on the wiki, but I'm not sure about the OCD commander files. |
| 03:56.08 | joe_bleau | Lemme see if I've still got them. (I've had a hard drive crash between now and then.) |
| 03:57.06 | joe_bleau | Nevermind, they're on the main DHT-Walnut page after all. |
| 03:59.04 | MisterBIOS | I saw that |
| 03:59.30 | MisterBIOS | whats your recommendation for keeping all the solder in the fourteen via's molten at the same time? |
| 03:59.40 | joe_bleau | ? |
| 03:59.49 | MisterBIOS | I need to solder the JTAG header |
| 03:59.51 | joe_bleau | I solder sucked each hole clean, then stuck in the header. |
| 03:59.53 | MonMotha | remove the existing solder |
| 04:00.07 | MonMotha | a heat gun can work, but that's dangerous as you'll reflow that whole section of the board |
| 04:00.13 | MisterBIOS | searches the mointains of shit for his solder-sucker |
| 04:00.16 | MisterBIOS | mountains |
| 04:00.23 | MisterBIOS | here it is :) |
| 04:01.11 | joe_bleau | Seems like the holes were a bit small for 0.025" square posts...or was that the GPIO connector? |
| 04:01.53 | ds2 | ewwwww you got mountains of manure around! |
| 04:07.01 | joe_bleau | Worst case, you could solder individual wires, instead of a header. |
| 04:25.11 | MisterBIOS | oookay, JTAG header soldered on |
| 04:25.47 | joe_bleau | Nice. |
| 04:26.24 | MisterBIOS | is hellbent on getting this to work tonight |
| 04:36.19 | MisterBIOS | hm, ocd commander has no parallel support |
| 04:36.24 | MisterBIOS | this version, anyways |
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| 06:57.20 | joe_bleau | winders or linux? I don't think they support wiggler under linux. |
| 07:08.31 | MisterBIOS | joe_bleau: windows, but AFAICT Wiggler is supported by OpenOCD |
| 07:08.49 | MisterBIOS | joe_bleau: their windows utility just has no option for even choosing anything other than USB or Ethrenet |
| 07:09.18 | ds2 | they been discouraging parallel port wigglers :( |
| 07:09.42 | MisterBIOS | of course |
| 07:09.48 | MisterBIOS | cutting into their bottom line |
| 07:09.54 | MisterBIOS | they probably took the old version down |
| 07:10.06 | ds2 | they were almost downright hostile when I mentioned wiggler and Linux together at their booth |
| 07:10.58 | MisterBIOS | hm, their support page does not list PPC405 as supporting wiggler |
| 07:11.14 | MisterBIOS | it explicitly says it doesn't support it |
| 07:11.22 | ds2 | artificial marketing crap |
| 07:11.27 | ds2 | I hate companies that do that |
| 07:12.00 | MisterBIOS | yup |
| 07:12.06 | MisterBIOS | even a lot of hardware manufacturers do it |
| 07:12.23 | MisterBIOS | they state 2GB Max RAM (or one) and the chipset they're using from Intel clearly supports 4 or 2 |
| 07:12.30 | MisterBIOS | especially on laptops |
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| 07:15.32 | MisterBIOS | hi DrZimmerman |
| 07:17.09 | MisterBIOS | joe_bleau: any suggestions? |
| 07:25.12 | DrZimmerman | morning :) |
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| 11:30.54 | damunix | morning |
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| 16:08.28 | joe_bleau | The latest OCD Commander on my computer is 2.5.6 and it appears to support parallel port wiggler + IBM/AMCC 405. |
| 16:08.39 | joe_bleau | I didn't actually hook up a cable though. |
| 16:08.59 | joe_bleau | I don't think openOCD is any help--isn't the JTAG debug info for the '405 proprietary? |
| 16:26.43 | GPSFan | joe_bleau: at one time I was going to do this: http://pupa.da.ru/proxim/ IIRC it is the same processor family as the DHT, so these instructions may work. They used OpenOCD, I have used OpenOCD on other PPC boxes. |