1 # NXP LPC2478 ARM7TDMI-S with 512kB Flash and 64kB Local On-Chip SRAM (98kB total), clocked with 4MHz internal RC oscillator
3 if { [info exists CHIPNAME] } {
4 set _CHIPNAME $CHIPNAME
9 if { [info exists ENDIAN] } {
15 if { [info exists CPUTAPID ] } {
16 set _CPUTAPID $CPUTAPID
18 set _CPUTAPID 0x4f1f0f0f
21 #delays on reset lines
25 # LPC2000 -> SRST causes TRST
26 reset_config trst_and_srst srst_pulls_trst
28 jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
30 set _TARGETNAME $_CHIPNAME.cpu
31 target create $_TARGETNAME arm7tdmi -endian $_ENDIAN -chain-position $_TARGETNAME -variant arm7tdmi-s_r4
33 # LPC2478 has 64kB of SRAM on its main system bus (so-called Local On-Chip SRAM)
34 $_TARGETNAME configure -work-area-virt 0 -work-area-phys 0x40000000 -work-area-size 0x10000 -work-area-backup 0
36 $_TARGETNAME configure -event reset-init {
37 # Force target into ARM state
38 armv4_5 core_state arm
39 # Do not remap 0x0000-0x0020 to anything but the Flash
43 # LPC2378 has 512kB of FLASH, but upper 8kB are occupied by bootloader.
44 # After reset the chip uses its internal 4MHz RC oscillator.
45 # flash bank lpc2000 <base> <size> 0 0 <target#> <variant> <clock> [calc checksum]
46 flash bank lpc2000 0x0 0x7D000 0 0 0 lpc2000_v2 12000 calc_checksum
48 # Try to use RCLK, if RCLK is not available use "normal" mode. 4MHz / 6 = 666kHz, so use 500.