# script for stm32
-if { [info exists CHIPNAME] } {
- set _CHIPNAME $CHIPNAME
-} else {
+if { [info exists CHIPNAME] } {
+ set _CHIPNAME $CHIPNAME
+} else {
set _CHIPNAME stm32
}
-if { [info exists ENDIAN] } {
- set _ENDIAN $ENDIAN
-} else {
+if { [info exists ENDIAN] } {
+ set _ENDIAN $ENDIAN
+} else {
set _ENDIAN little
}
-#Checking if user had set the work-area-size for the chip
-#If not, the value will be set to 16k
+# Work-area is a space in RAM used for flash programming
+# By default use 16kB
if { [info exists WORKAREASIZE] } {
set _WORKAREASIZE $WORKAREASIZE
} else {
set _WORKAREASIZE 0x4000
}
-# jtag speed
-jtag_khz 500
+# JTAG speed should be <= F_CPU/6. F_CPU after reset is 8MHz, so use F_JTAG = 1MHz
+adapter_khz 1000
-jtag_nsrst_delay 100
+adapter_nsrst_delay 100
jtag_ntrst_delay 100
-#use combined on interfaces or targets that can't set TRST/SRST separately
-reset_config trst_and_srst
-
#jtag scan chain
if { [info exists CPUTAPID ] } {
set _CPUTAPID $CPUTAPID
jtag newtap $_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 {
# See STM Document RM0008
- # Section 26.6.2
+ # Section 29.6.2
# Low density devices, Rev A
set _BSTAPID1 0x06412041
# Medium density devices, Rev A
set _BSTAPID3 0x16410041
# High density devices, Rev A
set _BSTAPID4 0x06414041
-}
-jtag newtap $_CHIPNAME bs -irlen 5 -ircapture 0x1 -irmask 0x1 -expected-id $_BSTAPID1 -expected-id $_BSTAPID2 -expected-id $_BSTAPID3 -expected-id $_BSTAPID4
+ # Connectivity line devices, Rev A and Rev Z
+ set _BSTAPID5 0x06418041
+}
+jtag newtap $_CHIPNAME bs -irlen 5 -expected-id $_BSTAPID1 \
+ -expected-id $_BSTAPID2 -expected-id $_BSTAPID3 \
+ -expected-id $_BSTAPID4 -expected-id $_BSTAPID5
-set _TARGETNAME [format "%s.cpu" $_CHIPNAME]
+set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME cortex_m3 -endian $_ENDIAN -chain-position $_TARGETNAME
-$_TARGETNAME configure -work-area-virt 0 -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
-
-flash bank stm32x 0 0 0 0 0
+$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
-# For more information about the configuration files, take a look at:
-# openocd.texi
+set _FLASHNAME $_CHIPNAME.flash
+flash bank $_FLASHNAME stm32x 0 0 0 0 $_TARGETNAME