# OpenOCD config file for Core V Wally
# Users can find example material in /usr/share/openocd/scripts/

adapter driver ftdi

# when multiple adapters with the same vid_pid are connected (ex: arty-a7 and usb-jtag)
# need to specify which usb port to drive
# find numerical path using command "lsusb -t" (<bus>-<port>)
adapter usb location 1-4

ftdi vid_pid 0x0403 0x6010
ftdi channel 0

#TODO: figure out which of these bits need to be set
# data MSB..LSB       direction (1:out) MSB..LSB
# 0000'0000'0011'0000 0000'0000'0011'1011
ftdi layout_init 0x0030 0x003b

transport select jtag
adapter speed 1000

set _CHIPNAME cvw
jtag newtap $_CHIPNAME cpu -irlen 5 -expected-id 0x1002ac05

set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME riscv -chain-position $_TARGETNAME

init
# this is useful for manual debugging, but breaks gdb
poll off