2 # M0+ devices only have SW-DP, but swj-dp code works, just don't
3 # set any jtag related features
6 source [find target/swj-dp.tcl]
8 if { [info exists CHIPNAME] } {
9 set _CHIPNAME $CHIPNAME
16 # Work-area is a space in RAM used for flash programming
17 # By default use 8kB (max ram on smallest part)
18 if { [info exists WORKAREASIZE] } {
19 set _WORKAREASIZE $WORKAREASIZE
21 set _WORKAREASIZE 0x2000
24 # JTAG speed should be <= F_CPU/6.
25 # F_CPU after reset is ~2MHz, so use F_JTAG max = 333kHz
28 adapter_nsrst_delay 100
30 if { [info exists CPUTAPID] } {
31 set _CPUTAPID $CPUTAPID
33 # Arm, m0+, non-multidrop.
34 # http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.faqs/ka16088.html
35 set _CPUTAPID 0x0bc11477
38 swj_newdap $_CHIPNAME cpu -expected-id $_CPUTAPID
40 set _TARGETNAME $_CHIPNAME.cpu
41 target create $_TARGETNAME cortex_m -endian $_ENDIAN -chain-position $_TARGETNAME
43 $_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
45 # flash size will be probed
46 set _FLASHNAME $_CHIPNAME.flash
47 flash bank $_FLASHNAME stm32lx 0x08000000 0 0 0 $_TARGETNAME
49 reset_config srst_nogate
52 # if srst is not fitted use SYSRESETREQ to
53 # perform a soft reset
54 cortex_m reset_config sysresetreq
57 proc stm32l0_enable_HSI16 {} {
58 # Enable HSI16 as clock source
59 echo "STM32L0: Enabling HSI16"
61 # Set HSI16ON in RCC_CR (leave MSI enabled)
62 mww 0x40021000 0x00000101
64 # Set HSI16 as SYSCLK (RCC_CFGR)
65 mww 0x4002100c 0x00000001
71 $_TARGETNAME configure -event reset-init {
75 $_TARGETNAME configure -event reset-start {