# script for stm32l
+#
+# stm32 devices support both JTAG and SWD transports.
+#
+source [find target/swj-dp.tcl]
+
if { [info exists CHIPNAME] } {
- set _CHIPNAME $CHIPNAME
+ set _CHIPNAME $CHIPNAME
} else {
- set _CHIPNAME stm32l
+ set _CHIPNAME stm32l
}
if { [info exists ENDIAN] } {
- set _ENDIAN $ENDIAN
+ set _ENDIAN $ENDIAN
} else {
- set _ENDIAN little
+ set _ENDIAN little
}
# Work-area is a space in RAM used for flash programming
-# By default use 14kB
+# By default use 10kB
if { [info exists WORKAREASIZE] } {
- set _WORKAREASIZE $WORKAREASIZE
+ set _WORKAREASIZE $WORKAREASIZE
} else {
- set _WORKAREASIZE 0x3800
+ set _WORKAREASIZE 0x2800
}
# JTAG speed should be <= F_CPU/6.
adapter_khz 100
adapter_nsrst_delay 100
-jtag_ntrst_delay 100
+if {$using_jtag} {
+ jtag_ntrst_delay 100
+}
#jtag scan chain
-if { [info exists CPUTAPID ] } {
+if { [info exists CPUTAPID] } {
set _CPUTAPID $CPUTAPID
} else {
# See STM Document RM0038
# Section 24.6.3
set _CPUTAPID 0x4ba00477
}
-jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
-if { [info exists BSTAPID ] } {
+swj_newdap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
+
+if { [info exists BSTAPID] } {
# FIXME this never gets used to override defaults...
set _BSTAPID $BSTAPID
} else {
# Section 24.6.2
set _BSTAPID 0x06416041
}
-jtag newtap $_CHIPNAME bs -irlen 5 -expected-id $_BSTAPID
+
+if {$using_jtag} {
+ jtag newtap $_CHIPNAME bs -irlen 5 -expected-id $_BSTAPID
+}
set _TARGETNAME $_CHIPNAME.cpu
-target create $_TARGETNAME cortex_m3 -endian $_ENDIAN -chain-position $_TARGETNAME
+target create $_TARGETNAME cortex_m -endian $_ENDIAN -chain-position $_TARGETNAME
$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
-
# flash size will be probed
set _FLASHNAME $_CHIPNAME.flash
flash bank $_FLASHNAME stm32lx 0x08000000 0 0 0 $_TARGETNAME
# if srst is not fitted use SYSRESETREQ to
# perform a soft reset
-cortex_m3 reset_config sysresetreq
+cortex_m reset_config sysresetreq
proc stm32l_enable_HSI {} {
# Enable HSI as clock source