diff options
| -rw-r--r-- | tcl/target/lpc2148.cfg | 87 |
1 files changed, 41 insertions, 46 deletions
diff --git a/tcl/target/lpc2148.cfg b/tcl/target/lpc2148.cfg index 8062cdde..7665ee75 100644 --- a/tcl/target/lpc2148.cfg +++ b/tcl/target/lpc2148.cfg @@ -1,50 +1,45 @@ -# 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 CPUTAPID ] } { - set _CPUTAPID $CPUTAPID -} else { - set _CPUTAPID 0x4f1f0f0f +# Proc that can be invoked to create a special version of +# the LPC2148 +proc setup_lpc2148 {chipname tapids} { + # 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 + + adapter_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 + + eval "jtag newtap $chipname cpu -irlen 4 -ircapture 0x1 -irmask 0xf $tapids" + + target create $chipname.cpu arm7tdmi -chain-position $chipname.cpu + + $chipname.cpu configure -work-area-phys 0x40000000 -work-area-size 0x4000 -work-area-backup 0 + + $chipname.cpu configure -event reset-init { + # Force target into ARM state + arm 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 <name> lpc2000 <base> <size> 0 0 <target#> <variant> <clock> [calc checksum] + flash bank $chipname.flash lpc2000 0x0 0x7d000 0 0 $chipname.cpu lpc2000_v2 14765 calc_checksum } -adapter_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 -jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID - -set _TARGETNAME $_CHIPNAME.cpu -target create $_TARGETNAME arm7tdmi -chain-position $_TARGETNAME - -$_TARGETNAME configure -work-area-phys 0x40000000 -work-area-size 0x4000 -work-area-backup 0 - -$_TARGETNAME configure -event reset-init { - # Force target into ARM state - arm 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 +# Default settings +proc init_targets {} { + setup_lpc2148 lpc2148 "-expected-id 0x3f0f0f0f -expected-id 0x4f1f0f0f" } - -# flash bank <name> lpc2000 <base> <size> 0 0 <target#> <variant> <clock> [calc checksum] -set _FLASHNAME $_CHIPNAME.flash -flash bank $_FLASHNAME lpc2000 0x0 0x7d000 0 0 $_TARGETNAME lpc2000_v2 14765 calc_checksum |