Hi,
I'm having trouble getting gdb working with openocd. I can connect,
initialize and download to the target, but when I try to step through
the code, I get:
Unable to set 32 bit software breakpoint at address 03f80050 - check
that memory is read/writable
After some googling, I tried to use:
working_area 0 0x0 0x800000 nobackup
but that just gave me this error:
User : 46 4 command.c:626 openocd_jim_vfprintf(): invalid command name
"working_area_0"
Scripts pasted below. I can supply the debug output from openocd if
needed. Any ideas?
Thanks,
Paul
---
openocd -d 3 -f jtagkey-tiny.cfg -f cartesio.cfg
cartesio.cfg:
# Cartesio SoC
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
} else {
set _CHIPNAME sta2062
}
if { [info exists ENDIAN] } {
set _ENDIAN $ENDIAN
} else {
set _ENDIAN little
}
if { [info exists CPUTAPID ] } {
set _CPUTAPID $CPUTAPID
} else {
set _CPUTAPID 0x07926041
}
# Change the default telnet port...
telnet_port 4444
# GDB connects here
gdb_port 3333
reset_config trst_only
#jtag scan chain
jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0x0
-expected-id $_CPUTAPID
set _TARGETNAME [format "%s.cpu" $_CHIPNAME]
target create $_TARGETNAME arm926ejs -endian $_ENDIAN -chain-position
$_TARGETNAME -variant arm926ejs
working_area 0 0x0 0x800000 nobackup
jtagkey-tiny.cfg:
#interface
interface ft2232
ft2232_device_desc "Amontec JTAGkey A"
ft2232_layout jtagkey
ft2232_vid_pid 0x0403 0xcff8
----
arm-linux-gdb v6.6-33
.gdbinit:
# connect to target
target remote localhost:3333
mon jtag_khz 8
# PLL Initialization
mon mww 0x101E0014 0x16001701
mon mww 0x101E0058 0x00000005
mon mww 0x101E0000 0x00002004
# PLL Enable
mon mww 0x101E0010 0x10000000
# Peripheral Clock Reg 0
mon mww 0x101E0034 0x58383FF0
# Peripheral Clock Reg 1
mon mww 0x101E0048 0x000001FE
mon jtag_khz 6000
# Ensure the SDRAM is under SDMC control
mon mww 0x101E9000 0x01000008
# Clear remap
mon mww 0x101E0000 0x00002104
# Enable SDMC and the DLL
mon mww 0x10110000 0x00E00003
# Program the command delay strategy
mon mww 0x10110028 0x00000111
# Issue NOP command
mon mww 0x10110020 0x00000183
# To do at least two auto-refresh cycles
mon mww 0x10110024 0x00000001
# Issue NOP command
mon mww 0x10110020 0x00000183
# Program the auto-refresh period
mon mww 0x10110024 0x00000046
# Program little endian
mon mww 0x10110008 0x00000000
# Program tRP timing
mon mww 0x10110030 0x00000003
# Program tRAS timing
mon mww 0x10110034 0x00000007
# Program tSREX timing
mon mww 0x10110038 0x00000013
# Program tWR timing
mon mww 0x10110044 0x00000002
# Program tRC timing
mon mww 0x10110048 0x0000000C
# Program tRFC timing
mon mww 0x1011004C 0x0000000B
# Program tXSR timing
mon mww 0x10110050 0x00000013
# Program tRRD timing
mon mww 0x10110054 0x00000002
# Program tMRD timing
mon mww 0x10110058 0x00000001
# Program tCDLR
mon mww 0x1011005c 0x00000003
# Program RAS and CAS for CS0
mon mww 0x10110104 0x00000304
# Program RAS and CAS for CS1
mon mww 0x10110124 0x00000304
# Program config register in BRC for CS0
mon mww 0x10110100 0x00000886
# Program config register in BRC for CS1
mon mww 0x10110120 0x00000886
# Issue MODE command
mon mww 0x10110020 0x00000083
# Data in
mon mdw 0x00018800 0x00000001
mon mdw 0x08018800 0x00000001
# Issue NORMAL command
mon mww 0x10110020 %long 0x00000003
# Enable buffer 1
mon mww 0x10110420 %long 0x00000001
# Enable buffer 3
mon mww 0x10110460 %long 0x00000001
# Enable buffer 4
mon mww 0x10110480 %long 0x00000001
# Enable buffer 5
mon mww 0x101104A0 %long 0x00000001
# Issue Precharge All command
mon mww 0x10110020 0x00000103
# Issue NOP command
mon mww 0x10110020 0x00000183
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