Here's a patch for a real _CPUTAPID entry for the LPC2148. I don't know
if they're the same for all LPC214x, this number is from an Olimex
LPC-H2148. The chip on that board is LPC2148FBD64.
Also fix a few cosmetic issues and comments in the file and add
more docs and pointers to the datasheet.
Uwe.
--
http://www.hermann-uwe.de | http://www.holsham-traders.de
http://www.crazy-hacks.org | http://www.unmaintained-free-software.org
Index: src/target/target/lpc2148.cfg
===================================================================
--- src/target/target/lpc2148.cfg (Revision 1426)
+++ src/target/target/lpc2148.cfg (Arbeitskopie)
@@ -1,49 +1,51 @@
-
if { [info exists CHIPNAME] } {
- set _CHIPNAME $CHIPNAME
-} else {
- set _CHIPNAME lpc2148
+ set _CHIPNAME $CHIPNAME
+} else {
+ set _CHIPNAME lpc2148
}
-if { [info exists ENDIAN] } {
- set _ENDIAN $ENDIAN
-} else {
- set _ENDIAN little
+if { [info exists ENDIAN] } {
+ set _ENDIAN $ENDIAN
+} else {
+ set _ENDIAN little
}
if { [info exists CPUTAPID ] } {
set _CPUTAPID $CPUTAPID
} else {
- # force an error till we get a good number
- set _CPUTAPID 0xffffffff
+ set _CPUTAPID 0x4f1f0f0f
}
-#delays on reset lines
jtag_nsrst_delay 200
jtag_ntrst_delay 200
-# NOTE!!! LPCs need reset pulled while RTCK is low. 0 to activate
+# 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 before being able to talk to the LPC2148, attach is not possible.
-#use combined on interfaces or targets that can't set TRST/SRST separately
reset_config trst_and_srst srst_pulls_trst
-#jtag scan chain
jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
set _TARGETNAME [format "%s.cpu" $_CHIPNAME]
+
target create $_TARGETNAME arm7tdmi -endian $_ENDIAN -chain-position $_TARGETNAME -variant arm7tdmi-s_r4
+
$_TARGETNAME configure -work-area-virt 0 -work-area-phys 0x40000000 -work-area-size 0x4000 -work-area-backup 0
+
$_TARGETNAME configure -event reset-init {
- # Force target into ARM state
+ # Force target into ARM state.
soft_reset_halt
- #do not remap 0x0000-0x0020 to anything but the flash
- mwb 0xE01FC040 0x01
-
+
+ # 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 <base> <size> 0 0 <target#> <variant>
+# flash bank lpc2000 <base> <size> 0 0 <target#> <variant> <clock> [calc_checksum]
flash bank lpc2000 0x0 0x7d000 0 0 0 lpc2000_v2 14765
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