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# NXP LPC2378 ARM7TDMI-S with 512kB Flash and 32kB Local On-Chip SRAM (58kB total), clocked with 4MHz internal RC oscillator
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
} else {
set _CHIPNAME lpc2378
}
if { [info exists ENDIAN] } {
set _ENDIAN $ENDIAN
} else {
set _ENDIAN little
}
if { [info exists CPUTAPID ] } {
set _CPUTAPID $CPUTAPID
} else {
set _CPUTAPID 0x4f1f0f0f
}
#delays on reset lines
jtag_nsrst_delay 200
jtag_ntrst_delay 200
# 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
# LPC2378 has 32kB 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 0x8000 -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
}
# 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>
flash bank lpc2000 0x0 0x0007D000 0 0 0 lpc2000_v2 4000 calc_checksum
# 4MHz / 6 = 666kHz, so use 500
jtag_khz 500
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