阿波罗开发板stm32f7的openocd配置
openocd的配置文件里面包含了stm32f7x.cfg
使用以下命令连接开发板
openocd -f interface/jlink.cfg -f target/stm32f7x.cfg
然后分析一下配置参数
# script for stm32f7x family
#
# stm32f7 devices support both JTAG and SWD transports.
#
source [find target/swj-dp.tcl]
source [find mem_helper.tcl]
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
} else {
set _CHIPNAME stm32f7x
}
set _ENDIAN little
# Work-area is a space in RAM used for flash programming
# By default use 128kB
if { [info exists WORKAREASIZE] } {
set _WORKAREASIZE $WORKAREASIZE
} else {
set _WORKAREASIZE 0x20000
}
#jtag scan chain
if { [info exists CPUTAPID] } {
set _CPUTAPID $CPUTAPID
} else {
if { [using_jtag] } {
# See STM Document RM0385
# Section 40.6.3 - corresponds to Cortex-M7 with FPU r0p0
set _CPUTAPID 0x5ba00477
} {
set _CPUTAPID 0x5ba02477
}
}
swj_newdap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
if {[using_jtag]} {
jtag newtap $_CHIPNAME bs -irlen 5
}
set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME cortex_m -endian $_ENDIAN -dap $_CHIPNAME.dap
$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
set _FLASHNAME $_CHIPNAME.flash
flash bank $_FLASHNAME stm32f2x 0 0 0 0 $_TARGETNAME
# adapter speed should be <= F_CPU/6. F_CPU after reset is 16MHz, so use F_JTAG = 2MHz
adapter_khz 2000
adapter_nsrst_delay 100
if {[using_jtag]} {
jtag_ntrst_delay 100
}
# use hardware reset, connect under reset
# 这里测试了下去掉srst_nogate,openocd会段错误退出,所有要保留srst_nogate
# apollo开发板的jtag接口引出了trst,所以srst_only应该也可以改为trst_and_srst
reset_config srst_only 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 {
# 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
}
$_TARGETNAME configure -event trace-config {
# Set TRACE_IOEN; TRACE_MODE is set to async; when using sync
# change this value accordingly to configure trace pins
# assignment
mmw 0xE0042004 0x00000020 0
}
#以下为后续添加的部分,从stm32f4x.cfg复制过来的
#如果觉得默认jtag速率2Mhz太慢,可以在reset-init里面完成时钟配置,然后提高jtag速率
$_TARGETNAME configure -event reset-init {
# 待实现
# 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
}
https://github.com/pswarfound