Modifying e31 arty7 openocd config file

(Jay Chokshi) #1

Greetings Team,

We have developed Embedded USB based debugger HW that does both JTAG and SWD over USB. We would like to test it to debug RISCV processor using E31 dev board.
We have developed new interface driver “eud”, that we want to test with this board. we can enable it using “interface eud” command in config file.

My question is if we should just comment out below FTDI related lines and add “interface eud” then is there anything else we would need to do to make it work?

# JTAG adapter setup
adapter_khz     10000

interface ftdi
ftdi_device_desc "Olimex OpenOCD JTAG ARM-USB-TINY-H"
ftdi_vid_pid 0x15ba 0x002a

ftdi_layout_init 0x0808 0x0a1b
ftdi_layout_signal nSRST -oe 0x0200
#ftdi_layout_signal nTRST -data 0x0100 -oe 0x0100
ftdi_layout_signal LED -data 0x0800

set _CHIPNAME riscv
jtag newtap $_CHIPNAME cpu -irlen 5 -expected-id 0x20000001


target create $_TARGETNAME.0 riscv -chain-position $_TARGETNAME
$_TARGETNAME.0 configure -work-area-phys 0x80000000 -work-area-size 10000 -work-area-backup 1

# Un-comment these two flash lines if you have a SPI flash and want to write
# it.
flash bank spi0 fespi 0x40000000 0 0 0 $_TARGETNAME.0 0x20004000
if {[ info exists pulse_srst]} {
  ftdi_set_signal nSRST 0
  ftdi_set_signal nSRST z
flash protect 0 64 last off
echo "Ready for Remote Connections"