# The Calypso target is connected to an unbuffered FT2232D adapter
# acting as the JTAG interface following Mother Mychaela's method,
# ADBUS7 is wired to the reset pin on TI's 14-pin connector.
# This OpenOCD config sets up the TAPs and the ARM7TDMI target
# in order to test OpenOCD's ability to halt with and without the
# "Calypso magic" that has supposedly been sniffed from TI's CCS
# by people who came before me.

interface ftdi
ftdi_vid_pid 0x0403 0x7151

ftdi_layout_init 0x0088 0x008b
ftdi_layout_signal nSRST -data 0x0080 -oe 0x0080

transport select jtag

adapter_khz 6000
reset_config srst_only srst_push_pull

if { [info exists CHIPNAME] } {
	set  _CHIPNAME $CHIPNAME
} else {
	set  _CHIPNAME calypso
}

if { [info exists CPUTAPID] } {
	set _CPUTAPID $CPUTAPID
} else {
	set _CPUTAPID 0x3100e02f
}

jtag newtap $_CHIPNAME dsp -irlen 8
jtag newtap $_CHIPNAME arm -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID

set _TARGETNAME $_CHIPNAME.arm
target create $_TARGETNAME arm7tdmi -endian little -chain-position $_TARGETNAME

proc calypso_magic {} {
	irscan calypso.arm 0x0b -endstate DRPAUSE
	drscan calypso.arm 2 2 -endstate RUN/IDLE
}