diff options
-rw-r--r-- | tcl/target/at91sam3XXX.cfg | 39 |
1 files changed, 26 insertions, 13 deletions
diff --git a/tcl/target/at91sam3XXX.cfg b/tcl/target/at91sam3XXX.cfg index 075b462d..f36475b6 100644 --- a/tcl/target/at91sam3XXX.cfg +++ b/tcl/target/at91sam3XXX.cfg @@ -24,6 +24,9 @@ # at91sam3X8C # at91sam3X8E # at91sam3X8H + +source [find target/swj-dp.tcl] + if { [info exists CHIPNAME] } { set _CHIPNAME $CHIPNAME } else { @@ -36,17 +39,13 @@ if { [info exists ENDIAN] } { set _ENDIAN little } -# JTAG speed should be <= F_CPU/6. F_CPU after reset is 4 MHz, so use F_JTAG = 0.5MHz -# -# 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 500 - -adapter_nsrst_delay 100 -jtag_ntrst_delay 100 +# 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 0x4000 +} #jtag scan chain if { [info exists CPUTAPID] } { @@ -55,18 +54,32 @@ if { [info exists CPUTAPID] } { set _CPUTAPID 0x4ba00477 } -jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID +swj_newdap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID set _TARGETNAME $_CHIPNAME.cpu target create $_TARGETNAME cortex_m -endian $_ENDIAN -chain-position $_TARGETNAME # 16K is plenty, the smallest chip has this much -$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size 16384 -work-area-backup 0 +$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0 $_TARGETNAME configure -event gdb-flash-erase-start { halt } +# JTAG speed should be <= F_CPU/6. F_CPU after reset is 4 MHz, so use F_JTAG = 0.5MHz +# +# Since we may be running of an RC oscilator, we crank down the speed a +# bit more to be on the safe side. Perhaps superstition, but if are +# running off a crystal, we can run closer to the limit. Note +# that there can be a pretty wide band where things are more or less stable. + +adapter_khz 500 + +adapter_nsrst_delay 100 +if {$using_jtag} { + jtag_ntrst_delay 100 +} + # if srst is not fitted use SYSRESETREQ to # perform a soft reset cortex_m reset_config sysresetreq |