hi, i've found the solution from the list archive. thanks guys.
On Fri, Jun 13, 2008 at 11:48 AM, limk <[EMAIL PROTECTED]> wrote: > Hi, > > I'm building a new redboot for my mips 4kc based board. > > the board already has a redboot preloaded and my intention is to > upgrade the amount of RAM (16MB->32MB). > > I've built a RAM version of the board and upon loading it, it throws > gdb stub string in the console > > > > RedBoot> load -r -v -b 0x80041000 redboot.ram.bin > Using default protocol (TFTP) > - > Raw file loaded 0x80041000-0x80083c77, assumed entry at 0x80041000 > RedBoot> go 0x800410bc > $O666C6173685F6877725F696E69743A20666C61736820646576696365202D2069643D32320A#18 > > after input 3 + character from the console (serial port), the boot > goes on normally. > > . > > If I try to debug this with gdb, I got the attached response > mipsisa32-elf-gdb -nw -b 9600 install/bin/redboot.elf > GNU gdb 5.3 (eCosCentric) > Copyright 2002 Free Software Foundation, Inc. > GDB is free software, covered by the GNU General Public License, and you are > welcome to change it and/or distribute copies of it under certain conditions. > Type "show copying" to see the conditions. > There is absolutely no warranty for GDB. Type "show warranty" for details. > This GDB was configured as "--host=i686-pc-linux-gnu > --target=mipsisa32-elf"... > > (gdb) set debug remote 1 > (gdb) set remotelogfile /dev/tty > (gdb) target remote /dev/ttyUSB0 > Remote debugging using /dev/ttyUSB0 > > w +Sending packet: $Hc-1#09...$Hc-1#09 > r $Packet instead of Ack, ignoring it > O666C6173685F6877725F696E69743A20737461727420307861383030303030302C20656E6420307861383766303030300A#B0$Packet > instead of Ack, ignoring it > O666C6173685F6877725F696E69743A20737461727420307861383030303030302C20656E6420307861383766303030300A#B0<Timeout: > 2 seconds>Sending packet: $Hc-1#09... > w $Hc-1#09 > r $Packet instead of Ack, ignoring it > O666C6173685F6877725F696E69743A20737461727420307861383030303030302C20656E6420307861383766303030300A#B0<Timeout: > 2 seconds>Sending packet: $Hc-1#09... > w $Hc-1#09 > r $Packet instead of Ack, ignoring it > O666C6173685F6877725F696E69743A20737461727420307861383030303030302C20656E6420307861383766303030300A#B0<Timeout: > 2 seconds>Sending packet: $Hc-1#09... > w $Hc-1#09 > r $Packet instead of Ack, ignoring it > O666C6173685F6877725F696E69743A20737461727420307861383030303030302C20656E6420307861383766303030300A#B0<Timeout: > 2 seconds><Timeout: 2 seconds>Timed out. > > w - > r > $O666C6173685F6877725F696E69743A20737461727420307861383030303030302C20656E6420307861383766303030300A#B0Packet > received: > O666C6173685F6877725F696E69743A20737461727420307861383030303030302C20656E6420307861383766303030300A > > w +Sending packet: $qC#b4...$qC#b4 > r +Ack > Ethernet eth0: MAC address 00:18:84:1e:dd:90\r\nIP: > 192.168.1.73/255.255.255.0, Gateway: 0.0.0.0\r\nDefault server: > 192.168.1.71, DNS server IP: 0.0.0.0\r\n\r\nRedBoot(tm) bootstrap and > debug environment [RAM]\r\nNon-certified release, version v2_0 - built > 11:35:16, Jun 13 2008\r\n\r\n\r\nCopyright (C) 2000, 2001, 2002, Red > Hat, Inc.\r\n\r\nRAM: 0x80010000-0x81000000, 0x8009cbb0-0x807d1ce0 > available\r\nFLASH: 0xa8000000 - 0xa87f0000, 128 blocks of 0x00010000 > bytes each.\r\n== Executing boot script in 1.000 seconds - enter ^C to > abort\r\nRedBoot> qC#b4<Timeout: 2 seconds>Timed out. > > w - > r -<Timeout: 2 seconds>Timed out. > > w - > r -<Timeout: 2 seconds>Timed out. > > w -Ignoring packet error, continuing... > +Sending packet: $qOffsets#4b...$qOffsets#4b > r -Nak > Sending packet: $qOffsets#4b... > w $qOffsets#4b > r <Timeout: 2 seconds>Sending packet: $qOffsets#4b... > w $qOffsets#4b > r <Timeout: 2 seconds>Sending packet: $qOffsets#4b... > w $qOffsets#4b > r <Timeout: 2 seconds><Timeout: 2 seconds>Timed out. > > w - > r <Timeout: 2 seconds>Timed out. > > w - > r <Timeout: 2 seconds>Timed out. > > w -Ignoring packet error, continuing... > +Couldn't establish connection to remote target > Malformed response to offset query, timeout > > End of log > > Please help and thanks in advance. > -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
