Subversion Repositories neorv32

# openOCD configuration file for generic FT2232H-based USB-jtag interface

# references: https://mcuoneclipse.com/2019/10/20/jtag-debugging-the-esp32-with-ft2232-and-openocd/

# ----------------------------------------------

# Interface configuration

# ----------------------------------------------

# FT2232H pinout:

# TCK:  D0

# TDI:  D1

# TDO:  D2

# TMS:  D3

# TRST: D4 (low-active, optional - pull input pin high if not used)

adapter driver ftdi

ftdi_vid_pid 0x0403 0x6010

ftdi_channel 0

ftdi_layout_init 0x0038 0x003b

adapter speed 1000

ftdi_layout_signal nTRST -ndata 0x0010 -noe 0x0040

transport select jtag

# ----------------------------------------------

# Target configuration

# ----------------------------------------------

set _CHIPNAME neorv32

set _JTAGID 0x0cafe001

jtag newtap $_CHIPNAME cpu -irlen 5 -expected-id $_JTAGID

set _TARGETNAME $_CHIPNAME.cpu

target create $_TARGETNAME.0 riscv -chain-position $_TARGETNAME

# ----------------------------------------------

# Scratch pad RAM

# ----------------------------------------------

# work area ("scratch pad RAM"): beginning of (internal) DMEM, 256 bytes, requires(!) backup

$_TARGETNAME.0 configure -work-area-phys 0x80000000 -work-area-size 256 -work-area-backup 1