I'm attempting to get back into the lpc2148 efforts again, and I'm rebuilding my toolchain and I see that openocd has changed a lot.
I'm running svn:1274, and it sort of works but I'm getting
target state: halted
target halted in Thumb state due to watchpoint, current mode: System
cpsr: 0xffffffff pc: 0xffffffef
Error: invalid mode value encountered
Error: cpsr contains invalid mode value - communication failure
target state: halted
target halted in Thumb state due to watchpoint, current mode: System
cpsr: 0xffffffff pc: 0xffffffef
That repeat.
Does anyone have any ideas on what could be going on?
Thanks for any ideas.
Thanks,
--mgross
FWIW my openocd.cfg is:
#daemon configuration
telnet_port 4444
gdb_port 3333
interface ft2232
ft2232_device_desc "Olimex OpenOCD JTAG"
ft2232_layout olimex-jtag
ft2232_vid_pid 0x15ba 0x0003
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
} else {
set _CHIPNAME lpc2148
}
if { [info exists ENDIAN] } {
set _ENDIAN $ENDIAN
} else {
set _ENDIAN little
}
if { [info exists CPUTAPID ] } {
set _CPUTAPID $CPUTAPID
} else {
# force an error till we get a good number
set _CPUTAPID 0xffffffff
}
#delays on reset lines
jtag_nsrst_delay 200
jtag_ntrst_delay 200
# NOTE!!! LPCs need reset pulled while RTCK is low. 0 to activate
# JTAG, power-on reset is not enough, i.e. you need to perform a
# reset before being able to talk to the LPC2148, attach is not
# possible.
#use combined on interfaces or targets that can't set TRST/SRST
separately
reset_config trst_and_srst srst_pulls_trst
#jtag scan chain
jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf
-expected-id $_CPUTAPID
set _TARGETNAME [format "%s.cpu" $_CHIPNAME]
target create $_TARGETNAME arm7tdmi -endian $_ENDIAN -chain-position
$_TARGETNAME -variant arm7tdmi-s_r4
$_TARGETNAME configure -work-area-virt 0 -work-area-phys 0x40000000
-work-area-size 0x4000 -work-area-backup 0
$_TARGETNAME configure -event reset-init {
# Force target into ARM state
soft_reset_halt
#do not remap 0x0000-0x0020 to anything but the flash
mwb 0xE01FC040 0x01
}
#working_area 0 0x40000000 0x80000 nobackup
#flash bank lpc2000 <base> <size> 0 0 <target#> <variant>
flash bank lpc2000 0x0 0x7d000 0 0 0 lpc2000_v2 14765
--mgross
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