On 14:06 Sun 22 May , Bear wrote: > hi, > I am using a old version of u-boot. It seems like 1.3.2. This > version of u-boot has been modified to suit my special board which > has no NOR flash. As far as I remember I had the support of the dcc in U-Boot much later
Do you use a mini2440? > > BTW: I have done a lot of test these days. > 1. wiggler: I can "reset" my board with "reset" command. But if I > run "reset init" or "reset halt", my board would only reset but not > halted. And OpenOCD would told me "timed out" waiting the board > halt. But, what the strange thing is, if I just run "halt" command > and NOT run any command related to "reset" BEFORE it, my board CAN > enter halt status. > > 2. jlink: I can run "reset", "reset halt", "reset init" command > successfully, but I cannot download anything into my board, the DCC > error occurred. If I run "arm7_9 dcc_download disable"(maybe the > spelling is incorrect, I am not in Linux now) and then tried to > debug my u-boot in eclipse, the download progress can finished > without any error, but in fact, the program cannot be executed. It > always stopped with a SIGNAL. Even I run resume in OpenOCD, it also > cannot be executed. > > 3. I don't know why this happened, but some days before, "reset" > command cannot be done if I use wiggler cable to debug my board. > There are always some errors when I execute "reset", "reset halt" or > "reset init" and my board cannot be reset. But at that time, I can > run "halt" command and debug my u-boot in eclipse, the only problem > is the "current line" function cannot work property, I mean, the > line which highlighted in eclipse is not the line currently run. > Maybe you can find this in one of my before email. Maybe this is > caused the upgrade of my Debian system? It's looks like a pll init issue are you about them? > > I apologized for my bad English but I still hope you can understand > what I talked about. :) Don't worry I here much worse english everyday Best Regards, J. _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development
