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85944d4144
Here's a patch for the double-reset problem on STM32. I've tested downloading and debugging with GDB and Eclipse, and everything seems to work fine. This effectively sets reset_config to none. trst_only would also be ok, but that's better left to a board configuration file since not all boards wire it up. The NVIC is used to trigger reset, which at least on this chip also pulses nSRST so the whole system does get rest -- exactly once. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
69 lines
1.7 KiB
INI
69 lines
1.7 KiB
INI
# script for stm32
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if { [info exists CHIPNAME] } {
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set _CHIPNAME $CHIPNAME
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} else {
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set _CHIPNAME stm32
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}
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if { [info exists ENDIAN] } {
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set _ENDIAN $ENDIAN
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} else {
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set _ENDIAN little
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}
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# Work-area is a space in RAM used for flash programming
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# By default use 16kB
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if { [info exists WORKAREASIZE] } {
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set _WORKAREASIZE $WORKAREASIZE
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} else {
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set _WORKAREASIZE 0x4000
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}
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# JTAG speed should be <= F_CPU/6. F_CPU after reset is 8MHz, so use F_JTAG = 1MHz
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jtag_khz 1000
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jtag_nsrst_delay 100
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jtag_ntrst_delay 100
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#jtag scan chain
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if { [info exists CPUTAPID ] } {
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set _CPUTAPID $CPUTAPID
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} else {
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# See STM Document RM0008
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# Section 26.6.3
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set _CPUTAPID 0x3ba00477
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}
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jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
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if { [info exists BSTAPID ] } {
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# FIXME this never gets used to override defaults...
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set _BSTAPID $BSTAPID
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} else {
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# See STM Document RM0008
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# Section 29.6.2
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# Low density devices, Rev A
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set _BSTAPID1 0x06412041
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# Medium density devices, Rev A
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set _BSTAPID2 0x06410041
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# Medium density devices, Rev B and Rev Z
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set _BSTAPID3 0x16410041
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# High density devices, Rev A
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set _BSTAPID4 0x06414041
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# Connectivity line devices, Rev A and Rev Z
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set _BSTAPID5 0x06418041
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}
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jtag newtap $_CHIPNAME bs -irlen 5 -expected-id $_BSTAPID1 \
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-expected-id $_BSTAPID2 -expected-id $_BSTAPID3 \
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-expected-id $_BSTAPID4 -expected-id $_BSTAPID5
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set _TARGETNAME $_CHIPNAME.cpu
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target create $_TARGETNAME cortex_m3 -endian $_ENDIAN -chain-position $_TARGETNAME
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$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
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flash bank stm32x 0 0 0 0 $_TARGETNAME
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# For more information about the configuration files, take a look at:
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# openocd.texi
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