}
# Work-area is a space in RAM used for flash programming
-# By default use 4kB
+# By default use 1KiB
if { [info exists WORKAREASIZE] } {
set _WORKAREASIZE $WORKAREASIZE
} else {
- set _WORKAREASIZE 0x1000
+ set _WORKAREASIZE 0x400
}
if { [info exists CPUTAPID] } {
}
swj_newdap $_CHIPNAME cpu -irlen 4 -expected-id $_CPUTAPID
+dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
set _TARGETNAME $_CHIPNAME.cpu
-target create $_TARGETNAME cortex_m -chain-position $_CHIPNAME.cpu
+target create $_TARGETNAME cortex_m -dap $_CHIPNAME.dap
$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
kinetis create_banks
# Table 5-1. Clock Summary of KL25 Sub-Family Reference Manual
-# specifies up to 1MHz for VLPR mode.
-adapter_khz 1000
+# specifies up to 1MHz for VLPR mode and up to 24MHz for run mode;
+# Table 17 of Sub-Family Data Sheet rev4 lists 25MHz as the maximum frequency.
+adapter speed 1000
reset_config srst_nogate
-if {![using_hla]} {
- # Detect secured MCU or boot lock-up in RESET/WDOG loop
- $_CHIPNAME.cpu configure -event examine-start {
+if {[using_hla]} {
+ echo ""
+ echo "!!!!!!!!!!!!!!!!!!!!!! WARNING !!!!!!!!!!!!!!!!! WARNING !!!!!!!!!!!!!!!!!!!!!!"
+ echo " Kinetis MCUs have a MDM-AP dedicated mainly to MCU security related functions."
+ echo " A high level adapter (like a ST-Link) you are currently using cannot access"
+ echo " the MDM-AP, so commands like 'mdm mass_erase' are not available in your"
+ echo " configuration. Also security locked state of the device will not be reported."
+ echo ""
+ echo " Be very careful as you can lock the device though there is no way to unlock"
+ echo " it without mass erase. Don't set write protection on the first block."
+ echo "!!!!!!!!!!!!!!!!!!!!!! WARNING !!!!!!!!!!!!!!!!! WARNING !!!!!!!!!!!!!!!!!!!!!!"
+ echo ""
+} else {
+ # Detect secured MCU
+ $_TARGETNAME configure -event examine-fail {
kinetis mdm check_security
}
cortex_m reset_config sysresetreq
}
-# Table 5-1. Clock Summary of KL25 Sub-Family Reference Manual
-# specifies up to 24MHz for run mode; Table 17 of Sub-Family Data
-# Sheet rev4 lists 25MHz as the maximum frequency.
-# Uncoment only if VLPR mode is not used
-#$_TARGETNAME configure -event reset-init {
-# adapter_khz 24000
-#}
+# Disable watchdog not to disturb OpenOCD algorithms running on MCU
+# (e.g. armv7m_checksum_memory() in verify_image)
+# Flash driver also disables watchdog before FTFA flash programming.
+$_TARGETNAME configure -event reset-init {
+ kinetis disable_wdog
+}