tcl/target/lpc2148.cfg

   1 # Proc that can be invoked to create a special version of
   2 # the LPC2148
   3 proc setup_lpc2148 {chipname tapids} {
   4         # Use RCLK. If RCLK is not available fall back to 500kHz.
   5         #
   6         # Depending on cabling you might be able to eek this up to 2000kHz.
   7         jtag_rclk 500
   8
   9         adapter_nsrst_delay 200
  10         jtag_ntrst_delay 200
  11
  12         # NOTE!!! LPCs need reset pulled while RTCK is low. 0 to activate
  13         # JTAG, power-on reset is not enough, i.e. you need to perform a
  14         # reset before being able to talk to the LPC2148, attach is not possible.
  15         reset_config trst_and_srst
  16
  17         eval "jtag newtap $chipname cpu -irlen 4 -ircapture 0x1 -irmask 0xf $tapids"
  18
  19         target create $chipname.cpu arm7tdmi -chain-position $chipname.cpu
  20
  21         $chipname.cpu configure -work-area-phys 0x40000000 -work-area-size 0x4000 -work-area-backup 0
  22
  23         $chipname.cpu configure -event reset-init {
  24                 # Force target into ARM state
  25                 arm core_state arm
  26
  27                 # Do not remap 0x0000-0x0020 to anything but the flash (i.e. select
  28                 # "User Flash Mode" where interrupt vectors are _not_ remapped,
  29                 # and reside in flash instead).
  30                 #
  31                 # See section 7.1 on page 32 ("Memory Mapping control register") in
  32                 # "UM10139: Volume 1: LPC214x User Manual", Rev. 02 -- 25 July 2006.
  33                 # http://www.standardics.nxp.com/support/documents/microcontrollers/pdf/user.manual.lpc2141.lpc2142.lpc2144.lpc2146.lpc2148.pdf
  34                 mwb 0xE01FC040 0x01
  35         }
  36
  37         # flash bank <name> lpc2000 <base> <size> 0 0 <target#> <variant> <clock> [calc checksum]
  38         flash bank $chipname.flash lpc2000 0x0 0x7d000 0 0 $chipname.cpu lpc2000_v2 14765 calc_checksum
  39 }
  40
  41
  42 # Default settings
  43 proc init_targets {} {
  44         setup_lpc2148 lpc2148 "-expected-id 0x3f0f0f0f -expected-id 0x4f1f0f0f"
  45 }