Background:
Board has ARM7TDMI.
Board has 20-pin JTAG connector. SRST and TRST are seperate.
TCK needs to run at 2mHz.
I want the board to STOP at reset when starting up.
I Have on OLIMEX USB ARM TINY debugger.
My config file looks like:
#daemon configuration
telnet_port 4444
gdb_port 3333
daemon_startup attach
#interface
interface ft2232
ft2232_device_desc “Olimex OpenOCD JTAG TINY B”
ft2232_layout olimex-jtag
Set jtag clock to 2mHz
jtag_speed 2
#jtag scan chain
#format L IRC IRCM IDCODE (Length, IR Capture, IR Capture Mask, IDCODE)
#format for ARM7TDMI
jtag_device 4 0x1 0xf 0xe
#target arm7tdmi
target arm7tdmi little reset_halt 0
run_and_halt_time 0 30
working_area 0 0x44000000 0x2000 nobackup
I start openOCD as follows, and get following result:
C:\GCCFD\openocd\bin>openocd-ftd2xx.exe -d
Info: openocd.c:82 main(): Open On-Chip Debugger (2006-10-12 18:00 CEST)
Debug: jtag.c:1210 jtag_init():
Debug: ft2232.c:991 ft2232_init(): ‘ft2232’ interface using FTD2XX with 'olime
x-jtag’ layout
Debug: ft2232.c:1077 ft2232_init(): current latency timer: 2
Debug: ft2232.c:1330 olimex_jtag_init(): 80 08 1b
Debug: ft2232.c:1373 olimex_jtag_init(): 82 09 0f
Debug: ft2232.c:242 ft2232_speed(): 86 02 00
Debug: jtag.c:247 jtag_call_event_callbacks(): jtag event: 1
Debug: jtag.c:1096 jtag_reset_callback():
Debug: jtag.c:247 jtag_call_event_callbacks(): jtag event: 1
Debug: jtag.c:1096 jtag_reset_callback():
Error: ft2232.c:225 ft2232_read(): couldn’t read the requested number of bytes
from FT2232 device (0 < 2)
Error: ft2232.c:365 ft2232_send_and_recv(): couldn’t read from FT2232
And then openOCD exits.
Has anyone got any idea what I am doing wrong?