**** BEGIN LOGGING AT Wed Jun 18 02:59:56 2008
Jun 18 15:10:57 <prpplague> bjdooks: don't suppose you have current patches for the s3c24xx sdio stuff?
Jun 18 15:17:41 <prpplague> bjdooks: nm, found your post
Jun 18 15:26:04 <prpplague> bjdooks: hmm, you have a complete patchset posted somewhere other than the list?
Jun 18 15:29:00 <toma^> Hi. I was wondering if you guys could help me a bit with a probably very simple question: I have a bunch of old jtags for avr-boards. Can they be used to program and debug arm-boards? 
Jun 18 15:31:25 <toma^> We're using ethernut 2 atm and we're thinking about upgrading to ethernut3 or EIR
Jun 18 16:04:45 <bjdooks> prpplague: i've got to do a bit of work to test and refine the sdmmc set... 
Jun 18 16:14:54 <ali_as_> toma, what voltage are they capable of?
Jun 18 16:15:36 <ali_as_> Are they simple LPT port buffer designs, or something more complicated?
Jun 18 16:17:18 <toma^> ali_as_: the old one seems to be 3-5v and the new one is  1.65V to 5.5V
Jun 18 16:17:40 <toma^> I can paste the direct urls too
Jun 18 16:18:48 <toma^> this is the old model: http://atomia.net/tuotteet.php?begin=1001&level=2&code=AVR-JTAG-USB
Jun 18 16:19:02 <toma^> and this one is the new one: http://www.ethernut.de/en/hardware/turtelizer/
Jun 18 16:23:01 <ali_as_> The second claims to be supported by openocd, which will do ARM.  The former may well work as well, you will need to try it so long as it supports the voltage.
Jun 18 17:08:03 <toma^> so basically the jtag itself doesn't include any fancy parts that would make it avr-only or arm-only?
Jun 18 17:08:21 <toma^> I don't really know about those things much
Jun 18 17:12:53 <ali_as_> They don't but attempts are sometimes made to make it incompatable.
Jun 18 17:13:32 <toma^> :/
Jun 18 17:13:55 <ali_as_> Some JTAG interfaces cost upwards of $3000 US.
Jun 18 17:14:10 <toma^> ouch
Jun 18 17:14:25 <toma^> well, I don't think that's the case with egnite's products :)
Jun 18 17:31:38 <drath_> the AVR-JTAG-USB that Olimex sells (no idea if it's the same) is /NOT/ compatible with the OpenOCD
Jun 18 17:31:47 <drath> the Turtelizer is compatible
Jun 18 17:32:59 <drath> mhh, the device from atomia looks different, but they mention a COM port, so I suppose it's similar to the olimex device
Jun 18 17:33:20 <toma^> well, it was delivered in olimex's box :)
Jun 18 17:33:56 <drath> AFAIK the AVR USB JTAGs include a FT232, not a FT2232 - OpenOCD only works with the latter
Jun 18 17:35:48 <toma^> ok, that's all I need to know really 
Jun 18 17:36:37 <drath> heh, yeah, i suppose you can open the case and look at the chip :)
Jun 18 17:37:11 <toma^> don't tempt me ;P
Jun 18 17:37:13 <toma^> I just might
Jun 18 17:38:18 <toma^> it's not really a problem to get those new turtelizers... I just thought that if I could just use the old jtags without too much of a hassle then it'd be worth the trouble
Jun 18 17:38:35 <ali_as_> What stops the FT232 device being compatable?
Jun 18 17:39:49 <drath> the FT232 lacks the MPSSE (multi protocol synchronous serial engine), which the OpenOCD uses to drive the JTAG pins
Jun 18 17:40:16 <ali_as_> But potentially it could be done a slower way?
Jun 18 17:41:44 <drath> it might be possible to bitbang the FT232's pins, but performance would be horrible, i suppose
Jun 18 17:43:20 <ali_as_> No more so than the performance of the native device anyway though I suppose?
Jun 18 17:44:20 <drath> sorry, not sure what you mean
Jun 18 17:44:36 <ali_as_> It is already a JTAG interface.
Jun 18 17:46:30 <drath> I know nothing about AVR-JTAG, so I can't say whether they really use "full" jtag
Jun 18 17:48:26 <drath> http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=56853
Jun 18 17:48:47 <drath> that link has something on the topic, but they're apparently using the newer FT232RL
**** ENDING LOGGING AT Thu Jun 19 02:59:57 2008