set _ENDIAN little
# Work-area is a space in RAM used for flash programming
-# By default use 64kB
+# By default use 32kB (Available RAM in smallest device STM32F410)
if { [info exists WORKAREASIZE] } {
set _WORKAREASIZE $WORKAREASIZE
} else {
- set _WORKAREASIZE 0x10000
+ set _WORKAREASIZE 0x8000
}
#jtag scan chain
swj_newdap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
-if { [info exists BSTAPID] } {
- set _BSTAPID $BSTAPID
-} else {
- # See STM Document RM0090
- # Section 38.6.2
- # STM32F405xx/07xx and STM32F415xx/17xx
- set _BSTAPID1 0x06413041
- # STM32F42xxx and STM32F43xxx
- set _BSTAPID2 0x06419041
- # See STM Document RM0368 (Rev. 3)
- # STM32F401B/C
- set _BSTAPID3 0x06423041
- # STM32F401D/E
- set _BSTAPID4 0x06433041
- # See STM Document RM0383 (Rev 2)
- # STM32F411
- set _BSTAPID5 0x06431041
-}
-
if {[using_jtag]} {
- swj_newdap $_CHIPNAME bs -irlen 5 -expected-id $_BSTAPID1 \
- -expected-id $_BSTAPID2 -expected-id $_BSTAPID3 \
- -expected-id $_BSTAPID4 -expected-id $_BSTAPID5
+ jtag newtap $_CHIPNAME bs -irlen 5
}
set _TARGETNAME $_CHIPNAME.cpu
}
$_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
- mww 0xE0042008 0x00001800
+ # DBGMCU_APB1_FZ |= DBG_IWDG_STOP | DBG_WWDG_STOP
+ mmw 0xE0042008 0x00001800 0
}
$_TARGETNAME configure -event trace-config {
# assignment
mmw 0xE0042004 0x00000020 0
}
+
+$_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_khz 8000
+}
+
+$_TARGETNAME configure -event reset-start {
+ # Reduce speed since CPU speed will slow down to 16MHz with the reset
+ adapter_khz 2000
+}