# 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 lpc2148 } if { [info exists ENDIAN] } { set _ENDIAN $ENDIAN } else { set _ENDIAN little } if { [info exists CPUTAPID ] } { set _CPUTAPID $CPUTAPID } else { set _CPUTAPID 0x4f1f0f0f } jtag_nsrst_delay 200 jtag_ntrst_delay 200 # NOTE!!! LPCs need reset pulled while RTCK is low. 0 to activate # JTAG, power-on reset is not enough, i.e. you need to perform a # reset before being able to talk to the LPC2148, attach is not possible. reset_config trst_and_srst srst_pulls_trst jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID set _TARGETNAME $_CHIPNAME.cpu target create $_TARGETNAME arm7tdmi -endian $_ENDIAN -chain-position $_TARGETNAME -variant arm7tdmi-s_r4 $_TARGETNAME configure -work-area-phys 0x40000000 -work-area-size 0x4000 -work-area-backup 0 $_TARGETNAME configure -event reset-init { # Force target into ARM state armv4_5 core_state arm # Do not remap 0x0000-0x0020 to anything but the flash (i.e. select # "User Flash Mode" where interrupt vectors are _not_ remapped, # and reside in flash instead). # # See section 7.1 on page 32 ("Memory Mapping control register") in # "UM10139: Volume 1: LPC214x User Manual", Rev. 02 -- 25 July 2006. # http://www.standardics.nxp.com/support/documents/microcontrollers/pdf/user.manual.lpc2141.lpc2142.lpc2144.lpc2146.lpc2148.pdf mwb 0xE01FC040 0x01 } # flash bank lpc2000 0 0 [calc_checksum] flash bank lpc2000 0x0 0x7d000 0 0 $_TARGETNAME lpc2000_v2 14765 calc_checksum