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Freddie Chopin <freddie_chopin@op.pl> makes lpc2478.cfg file more "standard" and - what is most important - correct (it's working [; ). I've also added some comments which try to clarify the meaning of all that's in there. 

git-svn-id: svn://svn.berlios.de/openocd/trunk@2269 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2009-06-17 20:49:55 +00:00
parent 8d8937f1a6
commit 1a400f8b8e
1 changed files with 31 additions and 17 deletions
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48
tcl/target/lpc2478.cfg
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@ -1,35 +1,49 @@
# Testing feeedback wanted!
set _CHIPNAME lpc2478
set _ENDIAN little
set _CPUTAPID 0x4f1f0f0f
# NXP LPC2478 ARM7TDMI-S with 512kB Flash and 64kB Local On-Chip SRAM (98kB total), clocked with 4MHz internal RC oscillator
# Use RCLK. If RCLK is not available fall back to 500kHz.
#
# Depending on cabling you might be able to eek this up to 2000kHz.
jtag_rclk 500
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
} else {
set _CHIPNAME lpc2478
}
jtag_nsrst_delay 200
jtag_ntrst_delay 200
if { [info exists ENDIAN] } {
set _ENDIAN $ENDIAN
} else {
set _ENDIAN little
}
#use combined on interfaces or targets that can't set TRST/SRST separately
if { [info exists CPUTAPID ] } {
set _CPUTAPID $CPUTAPID
} else {
set _CPUTAPID 0x4f1f0f0f
}
#delays on reset lines
jtag_nsrst_delay 100
jtag_ntrst_delay 100
# LPC2000 -> SRST causes TRST
reset_config trst_and_srst srst_pulls_trst
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
# LPC2478 has 64kB of SRAM on its main system bus (so-called Local On-Chip SRAM)
$_TARGETNAME configure -work-area-virt 0 -work-area-phys 0x40000000 -work-area-size 0x10000 -work-area-backup 0
$_TARGETNAME configure -event reset-init {
# Force target into ARM state
soft_reset_halt
# FIX!!!! should we remap the range below??? Is this applicable to
# Copied from LPC2148.
#do not remap 0x0000-0x0020 to anything but the flash
# Do not remap 0x0000-0x0020 to anything but the Flash
mwb 0xE01FC040 0x01
}
# LPC2378 has 512kB of FLASH, but upper 8kB are occupied by bootloader.
# After reset the chip uses its internal 4MHz RC oscillator.
# flash bank lpc2000 <base> <size> 0 0 <target#> <variant> <clock> [calc checksum]
flash bank lpc2000 0x0 0x7D000 0 0 0 lpc2000_v2 12000 calc_checksum
# Try to use RCLK, if RCLK is not available use "normal" mode. 4MHz / 6 = 666kHz, so use 500.
jtag_rclk 500