auracaster/openocd
3
0
Fork 1
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

swj-dp.tcl (SWD infrastructure #1)

Browse Source 
Provide new helper proc that can set up either an SWD or JTAG DAP
based on the transport which is in use -- mostly for SWJ-DP.

 Also update some SWJ-DP based chips/targets to use it.  The goal
is making SWD-vs-JTAG transparent in most places.  SWJ-DP based chips
really need this flexible configuration to cope with debug adapters
that support different transports, without needing new target configs
for each transport or adapter.

For JTAG-DP, callers will use "jtag newtap" directly, as today; only
one chip-level transport option exists.

For SW-DP (e.g. LPC1[13]xx or EFM32, they'll use "swd newdap" directly
(part of an upcoming SWD transport patch).  Again, only one transport
option exists, so hard-wiring is appropriate there.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
This commit is contained in:
David Brownell
2010-10-10 14:41:11 -07:00
committed by David Brownell
parent 3864da1ab8
commit e3773e3e3d
3 changed files with 44 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
tcl/target/lpc1768.cfg
View File

@@ -1,5 +1,9 @@
# NXP LPC1768 Cortex-M3 with 512kB Flash and 32kB+32kB Local On-Chip SRAM,
# LPC17xx chips support both JTAG and SWD transports.
# Adapt based on what transport is active.
source [find target/swj-dp.tcl]
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
} else {
@@ -31,7 +35,8 @@ jtag_ntrst_delay 200
# LPC2000 & LPC1700 -> SRST causes TRST
reset_config srst_pulls_trst
jtag newtap $_CHIPNAME cpu -irlen 4 -expected-id $_CPUTAPID
#jtag newtap $_CHIPNAME cpu -irlen 4 -expected-id $_CPUTAPID
swj_newdap $_CHIPNAME cpu -irlen 4 -expected-id $_CPUTAPID
set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME cortex_m3 -chain-position $_TARGETNAME