}
swj_newdap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
-
-if { [info exists BSTAPID] } {
- set _BSTAPID $BSTAPID
-} else {
- # See STM Document RM0351
- # Section 44.6.3
- # STM32L4X6
- set _BSTAPID1 0x06415041
-}
+dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
if {[using_jtag]} {
- swj_newdap $_CHIPNAME bs -irlen 5 -expected-id $_BSTAPID1
+ jtag newtap $_CHIPNAME bs -irlen 5
}
set _TARGETNAME $_CHIPNAME.cpu
-target create $_TARGETNAME cortex_m -endian $_ENDIAN -chain-position $_TARGETNAME
+target create $_TARGETNAME cortex_m -endian $_ENDIAN -dap $_CHIPNAME.dap
$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
-set _FLASHNAME $_CHIPNAME.flash
-flash bank $_FLASHNAME stm32l4x 0 0 0 0 $_TARGETNAME
+flash bank $_CHIPNAME.flash stm32l4x 0x08000000 0 0 0 $_TARGETNAME
+flash bank $_CHIPNAME.otp stm32l4x 0x1fff7000 0 0 0 $_TARGETNAME
+
+if { [info exists QUADSPI] && $QUADSPI } {
+ set a [llength [flash list]]
+ set _QSPINAME $_CHIPNAME.qspi
+ flash bank $_QSPINAME stmqspi 0x90000000 0 0 0 $_TARGETNAME 0xA0001000
+} else {
+ if { [info exists OCTOSPI1] && $OCTOSPI1 } {
+ set a [llength [flash list]]
+ set _OCTOSPINAME1 $_CHIPNAME.octospi1
+ flash bank $_OCTOSPINAME1 stmqspi 0x90000000 0 0 0 $_TARGETNAME 0xA0001000
+ }
+ if { [info exists OCTOSPI2] && $OCTOSPI2 } {
+ set b [llength [flash list]]
+ set _OCTOSPINAME2 $_CHIPNAME.octospi2
+ flash bank $_OCTOSPINAME2 stmqspi 0x70000000 0 0 0 $_TARGETNAME 0xA0001400
+ }
+}
-# JTAG speed should be <= F_CPU/6. F_CPU after reset is MSI 4MHz, so use F_JTAG = 500 kHz
+# Common knowledges tells JTAG speed should be <= F_CPU/6.
+# F_CPU after reset is MSI 4MHz, so use F_JTAG = 500 kHz to stay on
+# the safe side.
#
-# Since we may be running of an RC oscilator, we crank down the speed a
-# bit more to be on the safe side. Perhaps superstition, but if are
-# running off a crystal, we can run closer to the limit. Note
-# that there can be a pretty wide band where things are more or less stable.
-adapter_khz 500
+# Note that there is a pretty wide band where things are
+# more or less stable, see http://openocd.zylin.com/#/c/3366/
+adapter speed 500
-adapter_nsrst_delay 100
+adapter srst delay 100
if {[using_jtag]} {
jtag_ntrst_delay 100
}
$_TARGETNAME configure -event reset-init {
# CPU comes out of reset with MSI_ON | MSI_RDY | MSI Range 6 (4 MHz).
- # Configure system to use MSI 24 MHz clock, compliant with VOS default (2).
- # 3 WS compliant with VOS=2 and 24 MHz.
- mww 0x40022000 0x00000102 ;# FLASH_ACR = PRFTBE | 3(Latency)
- mww 0x4002100C 0x00000099 ;# RCC_CR = MSI_ON | MSIRGSEL| MSI Range 10
+ # Use MSI 24 MHz clock, compliant even with VOS == 2.
+ # 3 WS compliant with VOS == 2 and 24 MHz.
+ mww 0x40022000 0x00000103 ;# FLASH_ACR = PRFTBE | 3(Latency)
+ mww 0x40021000 0x00000099 ;# RCC_CR = MSI_ON | MSIRGSEL | MSI Range 9
# Boost JTAG frequency
- adapter_khz 4000
+ adapter speed 4000
+}
+
+$_TARGETNAME configure -event reset-start {
+ # Reset clock is MSI (4 MHz)
+ adapter speed 500
}
$_TARGETNAME configure -event examine-end {