# script for stm32f4x family if { [info exists CHIPNAME] } { set _CHIPNAME $CHIPNAME } else { set _CHIPNAME stm32f4x } 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 64kB if { [info exists WORKAREASIZE] } { set _WORKAREASIZE $WORKAREASIZE } else { set _WORKAREASIZE 0x10000 } # JTAG speed should be <= F_CPU/6. F_CPU after reset is 8MHz, so use F_JTAG = 1MHz # # Since we may be running of an RC oscilator, we crank down the speed a # bit more to be on the safe side. Perhaps superstition, but if are # running off a crystal, we can run closer to the limit. Note # that there can be a pretty wide band where things are more or less stable. adapter_khz 1000 adapter_nsrst_delay 100 jtag_ntrst_delay 100 #jtag scan chain if { [info exists CPUTAPID] } { set _CPUTAPID $CPUTAPID } else { # See STM Document RM0090 # Section 32.6.2 - corresponds to Cortex-M4 r0p1 set _CPUTAPID 0x4ba00477 } jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID if { [info exists BSTAPID] } { set _BSTAPID $BSTAPID } else { # See STM Document RM0090 # Section 32.6.3 set _BSTAPID 0x06413041 } jtag newtap $_CHIPNAME bs -irlen 5 -expected-id $_BSTAPID set _TARGETNAME $_CHIPNAME.cpu target create $_TARGETNAME cortex_m -endian $_ENDIAN -chain-position $_TARGETNAME $_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 # if srst is not fitted use SYSRESETREQ to # perform a soft reset cortex_m reset_config sysresetreq