82 lines
1.8 KiB
INI
82 lines
1.8 KiB
INI
# script for stm32l
|
|
|
|
if { [info exists CHIPNAME] } {
|
|
set _CHIPNAME $CHIPNAME
|
|
} else {
|
|
set _CHIPNAME stm32l
|
|
}
|
|
|
|
if { [info exists ENDIAN] } {
|
|
set _ENDIAN $ENDIAN
|
|
} else {
|
|
set _ENDIAN little
|
|
}
|
|
|
|
# Work-area is a space in RAM used for flash programming
|
|
# By default use 14kB
|
|
if { [info exists WORKAREASIZE] } {
|
|
set _WORKAREASIZE $WORKAREASIZE
|
|
} else {
|
|
set _WORKAREASIZE 0x3800
|
|
}
|
|
|
|
# JTAG speed should be <= F_CPU/6.
|
|
# F_CPU after reset is 2MHz, so use F_JTAG max = 333kHz
|
|
adapter_khz 100
|
|
|
|
adapter_nsrst_delay 100
|
|
jtag_ntrst_delay 100
|
|
|
|
#jtag scan chain
|
|
if { [info exists CPUTAPID ] } {
|
|
set _CPUTAPID $CPUTAPID
|
|
} else {
|
|
# See STM Document RM0038
|
|
# Section 24.6.3
|
|
set _CPUTAPID 0x4ba00477
|
|
}
|
|
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 RM0038
|
|
# Section 24.6.2
|
|
set _BSTAPID 0x06416041
|
|
}
|
|
jtag newtap $_CHIPNAME bs -irlen 5 -expected-id $_BSTAPID
|
|
|
|
set _TARGETNAME $_CHIPNAME.cpu
|
|
target create $_TARGETNAME cortex_m3 -endian $_ENDIAN -chain-position $_TARGETNAME
|
|
|
|
$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
|
|
|
|
|
|
# flash size will be probed
|
|
set _FLASHNAME $_CHIPNAME.flash
|
|
flash bank $_FLASHNAME stm32lx 0x08000000 0 0 0 $_TARGETNAME
|
|
|
|
# if srst is not fitted use SYSRESETREQ to
|
|
# perform a soft reset
|
|
cortex_m3 reset_config sysresetreq
|
|
|
|
proc stm32l_enable_HSI {} {
|
|
# Enable HSI as clock source
|
|
echo "STM32L: Enabling HSI"
|
|
|
|
# Set HSION in RCC_CR
|
|
mww 0x40023800 0x00000101
|
|
|
|
# Set HSI as SYSCLK
|
|
mww 0x40023808 0x00000001
|
|
|
|
# Increase JTAG speed
|
|
adapter_khz 2000
|
|
}
|
|
|
|
$_TARGETNAME configure -event reset-init {
|
|
stm32l_enable_HSI
|
|
}
|
|
|