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From: LittleSweetMelon on 22 Apr 2008 05:16 Howdy, I have a PowerPC 405GP Walnut eval board. Recently, by accident, the flash which stores U-Boot is corrupted. Therefore the board cannot boot now. I want to use the JTAG port on the board to rewrite the flash with new U-Boot. I found many products for this propers, but they are too expensive for me. It costs $1000-$3000... >_< Eg: BDI2000, Silicon Probe... What I really want is simply use JTAG wiggler and a flash programmer to download uboot into flash. That's all! Nothing else. It would be very pleased if anyone can tell me some relatively low cost method to do so. Thank you very much. --- ShenLei
From: Didi on 22 Apr 2008 05:53 LittleSweetMe...(a)gmail.com wrote: >.... I found many products for this propers, but > they are too expensive for me. It costs $1000-$3000... >_< Eg: > BDI2000, Silicon Probe... What I really want is simply use JTAG > wiggler and a flash programmer to download uboot into flash. What I do (although I have not done it on the 405, but the technique is general) is use JTAG boundary scan - the .bsdl files being public - to drive/read the address and data signals and thus program the flash. But I am doing it using my DPS based toolchain, not sure if you can get anything you can use like this in the wintelinux world. Dimiter ------------------------------------------------------ Dimiter Popoff Transgalactic Instruments http://www.tgi-sci.com ------------------------------------------------------ http://www.flickr.com/photos/didi_tgi/sets/72157600228621276/ Original message: http://groups.google.com/group/comp.arch.embedded/msg/f5e49fef51e0e83a?dmode=source
From: ShenLei on 22 Apr 2008 23:13 Thank you. I'm studying JTAG boundary scan... >_< --- ShenLei "Didi" <dp(a)tgi-sci.com> ??????:f9881a04-1431-4403-872e-62a663a33ad5(a)b1g2000hsg.googlegroups.com... > LittleSweetMe...(a)gmail.com wrote: >>.... I found many products for this propers, but >> they are too expensive for me. It costs $1000-$3000... >_< Eg: >> BDI2000, Silicon Probe... What I really want is simply use JTAG >> wiggler and a flash programmer to download uboot into flash. > > What I do (although I have not done it on the 405, but the > technique is general) is use JTAG boundary scan - the .bsdl files > being public - to drive/read the address and data signals and > thus program the flash. But I am doing it using my DPS based > toolchain, not sure if you can get anything you can use like > this in the wintelinux world. > > Dimiter > > ------------------------------------------------------ > Dimiter Popoff Transgalactic Instruments > > http://www.tgi-sci.com > ------------------------------------------------------ > http://www.flickr.com/photos/didi_tgi/sets/72157600228621276/ > > Original message: > http://groups.google.com/group/comp.arch.embedded/msg/f5e49fef51e0e83a?dmode=source >
From: CBFalconer on 23 Apr 2008 07:05
ShenLei wrote: > > [Test] I am trying to use a real news server rather than posting > from google.groups. Sorry for repeat posts if you did not filter > it before. I wonder in order to avoid treating as SPAM, should I > assign email address other than my gmail account? ^_^ Or will my > post be still SPAM-like even if I send articles through real news > server? However you are using the flawed Outlook Express. I suggest you just get an installation unit for Thunderbird (see mozilla.com) and install that. Your email address doesn't affect the handling on Usenet. You can use anything you like. I suggest putting your real email address into the Reply-to: field, where it is not conveniently accessible for spammers. -- [mail]: Chuck F (cbfalconer at maineline dot net) [page]: <http://cbfalconer.home.att.net> Try the download section. ** Posted from http://www.teranews.com ** |