On Thu, Jun 10, 2010 at 2:10 AM, Jason Manley <[email protected]> wrote:
> Yeah, I'm afraid you'll need a PPC JTAG programmer :( > > We use the "USB Wiggler" from Macraigor Systems (because it's cheap, > not because it's any good). You have the correct macro -- > http://casper.berkeley.edu/svn/trunk/roach/production/test_software/roach_testing/macraigor_macros/loadram_rinit_auto.mac > The Macgraigor software tool is a little flaky and sometimes you > have to hit "reset" a few times first to get things going. > > This will load a serial bootloader on the PPC and you then need to > transfer the image across the serial port as before. Note that this > protocol is XMODEM (not YMODEM which is used when you "run newuboot" > in uboot). The latest uboot is > http://casper.berkeley.edu/svn/trunk/roach/sw/binaries/uboot/uboot-2010-05-11-t111010-corsairsilent > which fixes support for some memory modules. In any event, you > should try'n figure out why the initial serial transfer didn't work > otherwise you're going to keep having problems. Possibly you're using > minicom and forgot to install lrzsz? > I was using HyperTerminal (on XP). I had already used it to successfully transfer a new kernel. The only thing I can think of is I was also doing a simulink compile at the time. We have a hefty core i7 though, and I thought things would be fine. Maybe the bus got too congested. Still, I would think a ~115kbps serial transfer would be easy to manage under this load. Thanks, Steve > > Jason > > On 09 Jun 2010, at 22:09, Steve Maher wrote: > > > Okay, I've found the following > > > > > http://casper.berkeley.edu/wiki/ROACH_Bringup#PowerPC_U-Boot_Configuration > > > > but that seems to be a bit superseded by the following (e.g., use > > loadram_rinit_auto.mac instead of program.mac) > > http://www.mail-archive.com/[email protected]/msg00870.html > > > > Steve > > > > > > On Wed, Jun 9, 2010 at 1:40 PM, Steve Maher > > <[email protected]> wrote: > > Ugh. Dead roach. > > > > I ran "run newuboot" and started sending the file, but HyperTerminal > > failed with a "Did not receive response". I tried sending the file > > a second time and got the same response. Without other alternatives > > I then powered off the roach. Now I get nothing on the serial line > > when powering up. > > > > I ran "run newkernel" yesterday w/o problem. > > > > Do I have to do some prom programming now?? > > > > Steve > > > >
