Hello,
I’m using the OpenOCD to debug and program the flash of my AT91SAM7S128 MCU.
From time to time, lets say 90% of the cases, I got the following output info from the OCD:
Programming with OPENOCD
cp FIR0AEUEVMLX.bin main.bin
…........\Products\DemoBoards\Software\Library_ARM\OpenOCD\openocd_at91sam7s_flash.cmd -usb_port
Info: openocd.c:84 main(): Open On-Chip Debugger (2007-01-31 12:00 CET)
Warning: arm7_9_common.c:683 arm7_9_assert_reset(): srst resets test logic, too
Info: target.c:223 target_init_handler(): executing reset script ‘…........\Products\DemoBoards\Software\Library_ARM\OpenOCD\openocd_at91sam7s_flash.script’
Info: configuration.c:50 configuration_output_handler(): target state: halted
Info: configuration.c:50 configuration_output_handler(): target halted in ARM state due to debug request, current mode: Supervisor
Info: configuration.c:50 configuration_output_handler(): cpsr: 0x600000d3 pc: 0x00100e78
Info: configuration.c:50 configuration_output_handler(): dcc downloads are enabled
Info: configuration.c:50 configuration_output_handler(): successfully checked protect state
Info: configuration.c:50 configuration_output_handler(): cleared protection for sectors 0 through 7 on flash bank 0
Info: configuration.c:50 configuration_output_handler(): erased sectors 0 through 7 on flash bank 0 in 0s 50072us
Info: configuration.c:50 configuration_output_handler(): #1: at91sam7 at 0x00100000, size 0x00020000, buswidth 4, chipwidth 0
Info: configuration.c:50 configuration_output_handler():
Info: configuration.c:50 configuration_output_handler(): at91sam7 information: Chip is AT91SAM7S128
Info: configuration.c:50 configuration_output_handler(): cidr: 0x270c0740, arch: 0x0070, eproc: ARM7TDMI, version:0x000, flashsize: 0x00020000
Info: configuration.c:50 configuration_output_handler(): master clock(estimated): 51298kHz
Info: configuration.c:50 configuration_output_handler(): pagesize: 256, lockbits: 8 0x0000, pages in lock region: 64
Info: configuration.c:50 configuration_output_handler(): securitybit: 0, nvmbits: 0x3
Info: configuration.c:50 configuration_output_handler():
Info: configuration.c:50 configuration_output_handler(): wrote file main.bin to flash bank 0 at offset 0x00000000 in 1s 211742us
Error: arm7_9_common.c:561 arm7_9_execute_sys_speed(): timeout waiting for SYSCOMP & DBGACK, last DBG_STATUS: 0
Error: arm7_9_common.c:561 arm7_9_execute_sys_speed(): timeout waiting for SYSCOMP & DBGACK, last DBG_STATUS: 0
Warning: arm7_9_common.c:1798 arm7_9_read_memory(): memory read caused data abort (address: 0xffffff68, size: 0x4, count: 0x1)
Error: arm7_9_common.c:561 arm7_9_execute_sys_speed(): timeout waiting for SYSCOMP & DBGACK, last DBG_STATUS: 0
Warning: arm7_9_common.c:1798 arm7_9_read_memory(): memory read caused data abort (address: 0xffffff68, size: 0x4, count: 0x1)
Error: arm7_9_common.c:561 arm7_9_execute_sys_speed(): timeout waiting for SYSCOMP & DBGACK, last DBG_STATUS: 0
Warning: arm7_9_common.c:1798 arm7_9_read_memory(): memory read caused data abort (address: 0xfffffc24, size: 0x4, count: 0x1)
Error: arm7_9_common.c:561 arm7_9_execute_sys_speed(): timeout waiting for SYSCOMP & DBGACK, last DBG_STATUS: 0
Warning: arm7_9_common.c:1798 arm7_9_read_memory(): memory read caused data abort (address: 0xfffffc30, size: 0x4, count: 0x1)
Error: arm7_9_common.c:561 arm7_9_execute_sys_speed(): timeout waiting for SYSCOMP & DBGACK, last DBG_STATUS: 0
Warning: arm7_9_common.c:1798 arm7_9_read_memory(): memory read caused data abort (address: 0xfffffc2c, size: 0x4, count: 0x1)
Warning: arm7_9_common.c:1963 arm7_9_write_memory(): memory write caused data abort (address: 0xffffff60, size: 0x4, count: 0x1)
Warning: arm7_9_common.c:683 arm7_9_assert_reset(): srst resets test logic, too
rm main.bin
Sometimes I have to wat a little bit more, sometimes not, but the flash is always programmed.
I’m using this CFG file:
#daemon configuration
telnet_port 4444
gdb_port 3333
#interface
interface ft2232
ft2232_device_desc “Olimex OpenOCD JTAG A”
ft2232_layout “olimex-jtag”
ft2232_vid_pid 0x15BA 0x0003
jtag_speed 0
jtag_nsrst_delay 200
jtag_ntrst_delay 200
#use combined on interfaces or targets that can’t set TRST/SRST separately
#reset_config [combination] [trst_type] [srst_type]
reset_config srst_only srst_pulls_trst
#jtag scan chain
#format L IRC IRCM IDCODE (Length, IR Capture, IR Capture Mask, IDCODE)
#jtag_device
jtag_device 4 0x1 0xf 0xe
#target configuration
#Tells the OpenOCD whether it should reset the target when the daemon is launched, or if it should just attach to the target.
#daemon_startup <‘attach’|‘reset’>
daemon_startup reset
#target arm7tdmi <reset_mode> <jtag#> [variant]
target arm7tdmi little run_and_init 0 arm7tdmi
#run_and_halt_time <target#> <time_in_ms>
run_and_halt_time 0 30
flash-options AT91
#target_script 0 reset …\Library_ARM\OpenOCD\openocd_at91sam7s_flash.script
target_script 0 reset …........\Products\DemoBoards\Software\Library_ARM\OpenOCD\openocd_at91sam7s_flash.script
#working_area <target#> <‘backup’|‘nobackup’>
working_area 0 0x00200000 0x4000 nobackup
#flash bank <chip_width> <bus_width> [driver_options …]
flash bank at91sam7 0 0 0 0 0
and this script file:
#halt
#sleep 10
Init - taken form the script openocd_at91sam7_ecr.script
mww 0xfffffd44 0x00008000 # disable watchdog
mww 0xfffffd08 0xa5000001 # enable user reset
mww 0xfffffc20 0x00000601 # CKGR_MOR : enable the main oscillator
sleep 10
mww 0xfffffc2c 0x00481c0e # CKGR_PLLR: 96.1097 MHz
sleep 10
mww 0xfffffc30 0x00000007 # PMC_MCKR : MCK = PLL / 2 ~= 48 MHz
sleep 10
mww 0xffffff60 0x003c0100 # MC_FMR: flash mode (FWS=1,FMCN=60)
arm7_9 force_hw_bkpts enable # program resides in flash
AT91SAM7 flash command-“batch”
adapted by Martin Thomas based on information from Dominic Rath - Thanks
modified by DAL
poll
#flash probe 0
#flash info 0
arm7_9 dcc_downloads enable
sleep 10
flash protect_check 0
flash protect 0 0 7 off
sleep 10
flash erase 0 0 7
sleep 10
#flash probe 0
flash info 0
flash write 0 main.bin 0x0
at91sam7 gpnvm 0 0 set
at91sam7 gpnvm 0 1 set
reset run
sleep 10
shutdown
Does somebody knows why this could happen?
It is not a big problem, but it bugs me.
Sorry for the big post 
Thanks in advance!