+reset_config srst_nogate
+
+if {![using_hla]} {
+ # if srst is not fitted use SYSRESETREQ to
+ # perform a soft reset
+ cortex_m reset_config sysresetreq
+}
+
+$_TARGETNAME configure -event examine-end {
+ # Enable debug during low power modes (uses more power)
+ # DBGMCU_CR |= DBG_STANDBY | DBG_STOP | DBG_SLEEP
+ mmw 0xE0042004 0x00000007 0
+
+ # Stop watchdog counters during halt
+ # DBGMCU_APB1_FZ |= DBG_IWDG_STOP | DBG_WWDG_STOP
+ mmw 0xE0042008 0x00001800 0
+}
+
+proc proc_post_enable {_chipname} {
+ targets $_chipname.cpu
+
+ if { [$_chipname.tpiu cget -protocol] eq "sync" } {
+ switch [$_chipname.tpiu cget -port-width] {
+ 1 {
+ mmw 0xE0042004 0x00000060 0x000000c0
+ mmw 0x40021020 0x00000000 0x0000ff00
+ mmw 0x40021000 0x000000a0 0x000000f0
+ mmw 0x40021008 0x000000f0 0x00000000
+ }
+ 2 {
+ mmw 0xE0042004 0x000000a0 0x000000c0
+ mmw 0x40021020 0x00000000 0x000fff00
+ mmw 0x40021000 0x000002a0 0x000003f0
+ mmw 0x40021008 0x000003f0 0x00000000
+ }
+ 4 {
+ mmw 0xE0042004 0x000000e0 0x000000c0
+ mmw 0x40021020 0x00000000 0x0fffff00
+ mmw 0x40021000 0x00002aa0 0x00003ff0
+ mmw 0x40021008 0x00003ff0 0x00000000
+ }
+ }
+ } else {
+ mmw 0xE0042004 0x00000020 0x000000c0
+ }
+}
+
+$_CHIPNAME.tpiu configure -event post-enable "proc_post_enable $_CHIPNAME"
+
+$_TARGETNAME configure -event reset-init {
+ # Configure PLL to boost clock to HSI x 4 (64 MHz)
+ mww 0x40023804 0x08012008 ;# RCC_PLLCFGR 16 Mhz /8 (M) * 128 (N) /4(P)
+ mww 0x40023C00 0x00000102 ;# FLASH_ACR = PRFTBE | 2(Latency)
+ mmw 0x40023800 0x01000000 0 ;# RCC_CR |= PLLON
+ sleep 10 ;# Wait for PLL to lock
+ mmw 0x40023808 0x00001000 0 ;# RCC_CFGR |= RCC_CFGR_PPRE1_DIV2
+ mmw 0x40023808 0x00000002 0 ;# RCC_CFGR |= RCC_CFGR_SW_PLL
+
+ # Boost JTAG frequency
+ adapter speed 8000
+}
+
+$_TARGETNAME configure -event reset-start {
+ # Reduce speed since CPU speed will slow down to 16MHz with the reset
+ adapter speed 2000
+}