# Config for Texas Instruments low power RF SoC CC2538
# http://www.ti.com/lit/pdf/swru319
+adapter speed 100
+
+source [find target/icepick.cfg]
+source [find target/ti-cjtag.cfg]
+
if { [info exists CHIPNAME] } {
- set CHIPNAME $CHIPNAME
+ set _CHIPNAME $CHIPNAME
+} else {
+ set _CHIPNAME cc2538
+}
+
+#
+# Main DAP
+#
+if { [info exists DAP_TAPID] } {
+ set _DAP_TAPID $DAP_TAPID
} else {
- set CHIPNAME cc2538
+ set _DAP_TAPID 0x8B96402F
}
+jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_DAP_TAPID -disable
+jtag configure $_CHIPNAME.cpu -event tap-enable "icepick_c_tapenable $_CHIPNAME.jrc 0"
+#
+# ICEpick-C (JTAG route controller)
+#
if { [info exists JRC_TAPID] } {
- set JRC_TAPID $JRC_TAPID
+ set _JRC_TAPID $JRC_TAPID
} else {
- set JRC_TAPID 0x8B96402F
+ set _JRC_TAPID 0x8B96402F
}
+jtag newtap $_CHIPNAME jrc -irlen 6 -ircapture 0x1 -irmask 0x3f -expected-id $_JRC_TAPID -ignore-version
+# A start sequence is needed to change from cJTAG (Compact JTAG) to
+# 4-pin JTAG before talking via JTAG commands
+jtag configure $_CHIPNAME.jrc -event setup "jtag tapenable $_CHIPNAME.cpu"
+jtag configure $_CHIPNAME.jrc -event post-reset "ti_cjtag_to_4pin_jtag $_CHIPNAME.jrc"
-source [find target/cc26xx.cfg]
+#
+# Cortex-M3 target
+#
+set _TARGETNAME $_CHIPNAME.cpu
+dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
+target create $_TARGETNAME cortex_m -dap $_CHIPNAME.dap