1 # Use RCLK. If RCLK is not available fall back to 500kHz.
3 # Depending on cabling you might be able to eek this up to 2000kHz.
6 if { [info exists CHIPNAME] } {
7 set _CHIPNAME $CHIPNAME
12 if { [info exists CPUTAPID ] } {
13 set _CPUTAPID $CPUTAPID
15 set _CPUTAPID 0x4f1f0f0f
18 adapter_nsrst_delay 200
21 # NOTE!!! LPCs need reset pulled while RTCK is low. 0 to activate
22 # JTAG, power-on reset is not enough, i.e. you need to perform a
23 # reset before being able to talk to the LPC2148, attach is not possible.
25 reset_config trst_and_srst
27 jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
29 set _TARGETNAME $_CHIPNAME.cpu
30 target create $_TARGETNAME arm7tdmi -chain-position $_TARGETNAME
32 $_TARGETNAME configure -work-area-phys 0x40000000 -work-area-size 0x4000 -work-area-backup 0
34 $_TARGETNAME configure -event reset-init {
35 # Force target into ARM state
38 # Do not remap 0x0000-0x0020 to anything but the flash (i.e. select
39 # "User Flash Mode" where interrupt vectors are _not_ remapped,
40 # and reside in flash instead).
42 # See section 7.1 on page 32 ("Memory Mapping control register") in
43 # "UM10139: Volume 1: LPC214x User Manual", Rev. 02 -- 25 July 2006.
44 # http://www.standardics.nxp.com/support/documents/microcontrollers/pdf/user.manual.lpc2141.lpc2142.lpc2144.lpc2146.lpc2148.pdf
48 # flash bank <name> lpc2000 <base> <size> 0 0 <target#> <variant> <clock> [calc checksum]
49 set _FLASHNAME $_CHIPNAME.flash
50 flash bank $_FLASHNAME lpc2000 0x0 0x7d000 0 0 $_TARGETNAME lpc2000_v2 14765 calc_checksum