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Hello,
I have set up a development environment using the tools described in James Lynch's tutorial. I am able to successfully compile and load an application to the AT91SAM9263-EK board. My application has come to the point now where I need to use the SAM-ICE JTAG which I recently purchased. I have set up the following GDB init script in the Eclipse debugger:
# Set up gdb, init clocks, watchdog, and SDRAM
# Change to default reset behavior
monitor long 0xFFFFFD08 0xA0000401
# Reset peripherals
monitor long 0xFFFFFd00 0xA0000004
# Unremap
monitor long 0xFFFFEF00 0x0
# Zero out registers
monitor reset 6
# Disable and clear AIC interrupt sources (important!)
monitor long 0xFFFFF124 0xFFFFFFFF
monitor long 0xFFFFF128 0xFFFFFFFF
monitor reset
monitor speed 30
monitor speed adaptive
# Disable watchdog
monitor long 0xfffffd44 0x00008000
# Configure master clock
echo Configuring the master clock...\n
# Enable main oscillator
set *0xFFFFFC20 = 0x00004001
#while ((*0xFFFFFC68 & 0x1) == 0)
#end
monitor sleep 100
# Switch to main oscillator
set *0xFFFFFC30 = 0x00000001
# Set PLLA to 100MHz
set *0xFFFFFC28 = 0x2048BF07
#while ((*0xFFFFFC68 & 0x2) == 0)
#end
#while ((*0xFFFFFC68 & 0x1) == 0)
#end
monitor sleep 100
# Select prescaler
set *0xFFFFFC30 = 0x00000101
#while ((*0xFFFFFC68 & 0x8) == 0)
#end
monitor sleep 100
# Select master clock based on PLLA
set *0xFFFFFC30 = 0x00000102
#while ((*0xFFFFFC68 & 0x8) == 0)
#end
monitor sleep 100
echo Master clock ok.\n
echo Configuring the SDRAM controller...\n
# Enable EBI chip select for the SDRAM
set *0xFFFFED20 = 0x1000A
# SDRAM configuration
set *0xFFFFE208 = 0x85227259
set *0xFFFFE200 = 0x2
set *0x20000000 = 0
set *0xFFFFE200 = 0x4
set *0x20000000 = 0x1
set *0xFFFFE200 = 0x4
set *0x20000000 = 0
set *0xFFFFE200 = 0x4
set *0x20000000 = 0
set *0xFFFFE200 = 0x4
set *0x20000000 = 0
set *0xFFFFE200 = 0x4
set *0x20000000 = 0
set *0xFFFFE200 = 0x4
set *0x20000000 = 0
set *0xFFFFE200 = 0x4
set *0x20000000 = 0
set *0xFFFFE200 = 0x4
set *0x20000000 = 0
set *0xFFFFE200 = 0x3
set *0x20000020 = 0xCAFEDEDE
set *0xFFFFE204 = 0x65B
set *0xFFFFE200 = 0
set *0x20000000 = 0
echo SDRAM configuration ok.\n
# Write an assembly instruction to SRAM0 (which will
# be put at 0x0, the reset vector) to do a load
# address jump
set *(unsigned int)0x200000 = 0xe59ff018
# The address to jump to - the beginning of SDRAM
set *(unsigned int)0x200020 = 0x20000000
# Now remap SRAM0 to 0.
set *(unsigned int)0xFFFFEF00 = 0x3
set remote memory-write-packet-size 1025
set remote memory-write-packet-size fixed
set remote memory-read-packet-size 1025
set remote memory-read-packet-size fixed
load
thbreak main
echo \nThe following value should be 0x30008000\n
p/x *0xFFFFFD44
continue
I am trying to debug the SDRAM version of my application using the above script. The JTAG is successfully able to communicate with the GDB Server however I am getting an error. A transcript of the JTAG initialization is shown below:
[size=7]317-gdb-set confirm off
317^done
318-gdb-set width 0
(gdb)
318^done
(gdb)
319-gdb-set height 0
319^done
(gdb)
320-interpreter-exec console echo
320^done
(gdb)
321-gdb-show prompt
321^done,value="(gdb) "
(gdb)
322-environment-directory C:/SAM/modem C:/SAM/modem/.settings C:/SAM/modem/at91lib C:/SAM/modem/at91lib/asp C:/SAM/modem/at91lib/boards C:/SAM/modem/at91lib/boards/at91sam9263-ek C:/SAM/modem/at91lib/boards/at91sam9263-ek/at91sam9263 C:/SAM/modem/at91lib/bsp C:/SAM/modem/at91lib/bsp/components C:/SAM/modem/at91lib/bsp/components/codec-ad1981b C:/SAM/modem/at91lib/bsp/peripherals C:/SAM/modem/at91lib/bsp/peripherals/ac97c C:/SAM/modem/at91lib/bsp/peripherals/aic C:/SAM/modem/at91lib/bsp/peripherals/dbgu C:/SAM/modem/at91lib/bsp/peripherals/pio C:/SAM/modem/at91lib/bsp/peripherals/pit C:/SAM/modem/at91lib/bsp/peripherals/pmc C:/SAM/modem/at91lib/bsp/peripherals/ssc C:/SAM/modem/at91lib/bsp/peripherals/ssc.bak C:/SAM/modem/at91lib/bsp/peripherals/tc C:/SAM/modem/at91lib/bsp/peripherals/usart C:/SAM/modem/at91lib/dms C:/SAM/modem/at91lib/dms/inc C:/SAM/modem/at91lib/dms/src C:/SAM/modem/at91lib/docs C:/SAM/modem/at91lib/ta C:/SAM/modem/at91lib/ta/inc C:/SAM/modem/at91lib/ta/src C:/SAM/modem/at91lib/ucos C:/SAM/modem/at91lib/utility C:/SAM/modem/getting-started-project C:/SAM/modem/getting-started-project/bin C:/SAM/modem/getting-started-project/obj
322^done,source-path="C:/SAM/modem;C:/SAM/modem/.settings;C:/SAM/modem/at91lib;C:/SAM/modem/at91lib/asp;C:/SAM/modem/at91lib/boards;C:/SAM/modem/at91lib/boards/at91sam9263-ek;C:/SAM/modem/at91lib/boards/at91sam9263-ek/at91sam9263;C:/SAM/modem/at91lib/bsp;C:/SAM/modem/at91lib/bsp/components;C:/SAM/modem/at91lib/bsp/components/codec-ad1981b;C:/SAM/modem/at91lib/bsp/peripherals;C:/SAM/modem/at91lib/bsp/peripherals/ac97c;C:/SAM/modem/at91lib/bsp/peripherals/aic;C:/SAM/modem/at91lib/bsp/peripherals/dbgu;C:/SAM/modem/at91lib/bsp/peripherals/pio;C:/SAM/modem/at91lib/bsp/peripherals/pit;C:/SAM/modem/at91lib/bsp/peripherals/pmc;C:/SAM/modem/at91lib/bsp/peripherals/ssc;C:/SAM/modem/at91lib/bsp/peripherals/ssc.bak;C:/SAM/modem/at91lib/bsp/peripherals/tc;C:/SAM/modem/at91lib/bsp/peripherals/usart;C:/SAM/modem/at91lib/dms;C:/SAM/modem/at91lib/dms/inc;C:/SAM/modem/at91lib/dms/src;C:/SAM/modem/at91lib/docs;C:/SAM/modem/at91lib/ta;C:/SAM/modem/at91lib/ta/inc;C:/SAM/modem/at91lib/ta/src;C:/SAM/modem/at91lib/ucos;C:/SAM/modem/at91lib/utility;C:/SAM/modem/getting-started-project;C:/SAM/modem/getting-started-project/bin;C:/SAM/modem/getting-started-project/obj;$cdir;$cwd"
(gdb)
323 info threads
&"info threads\n"
&"No registers.\n"
323^error,msg="No registers."
324-data-list-register-names
(gdb)
324^done,register-names=["r0","r1","r2","r3","r4","r5","r6","r7","r8","r9","r10","r11","r12","sp","lr","pc","f0","f1","f2","f3","f4","f5","f6","f7","fps","cpsr","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","",""]
(gdb)
325-break-watch
&"mi_cmd_break_watch: Missing <expression>\n"
325^error,msg="mi_cmd_break_watch: Missing <expression>"
(gdb)
326 target remote localhost:2331
mi_cmd_break_watch: Missing <expression>
&"target remote localhost:2331\n"
target remote localhost:2331
~"0x00401110 in ?? ()\n"
0x00401110 in ?? ()
~"Current language: auto; currently asm\n"
Current language: auto; currently asm
326^done
(gdb)
327-stack-list-frames
327^done,stack=[frame={level="0",addr="0x00401110",func="??"}]
(gdb)
328 info proc
&"info proc\n"
&"Undefined info command: \"proc\". Try \"help info\".\n"
328^error,msg="Undefined info command: \"proc\". Try \"help info\"."
(gdb)
329 info program
&"info program\n"
~"Debugging a target over a serial line.\n"
~"Program stopped at 0x401110.\n"
~"It stopped with signal SIGTERM, Terminated.\n"
~"Type \"info stack\" or \"info registers\" for more information.\n"
329^done
(gdb)
330 monitor long 0xFFFFFD08 0xA0000401
&"monitor long 0xFFFFFD08 0xA0000401 \n"
monitor long 0xFFFFFD08 0xA0000401
@"Writing 0xA0000401 @ address 0xFFFFFD08\r\n"
330^done
(gdb)
331 monitor long 0xFFFFFd00 0xA0000004
&"monitor long 0xFFFFFd00 0xA0000004 \n"
monitor long 0xFFFFFd00 0xA0000004
@"Writing 0xA0000004 @ address 0xFFFFFD00\r\n"
331^done
(gdb)
332 monitor long 0xFFFFEF00 0x0
&"monitor long 0xFFFFEF00 0x0 \n"
monitor long 0xFFFFEF00 0x0
@"Writing 0x00000000 @ address 0xFFFFEF00\r\n"
332^done
(gdb)
333 monitor reset 6
&"monitor reset 6 \n"
monitor reset 6
@"Resetting target (soft reset)\r\n"
333^done
(gdb)
334 monitor long 0xFFFFF124 0xFFFFFFFF
monitor long 0xFFFFF124 0xFFFFFFFF
&"monitor long 0xFFFFF124 0xFFFFFFFF \n"
@"Writing 0xFFFFFFFF @ address 0xFFFFF124\r\n"
334^done
(gdb)
335 monitor long 0xFFFFF128 0xFFFFFFFF
&"monitor long 0xFFFFF128 0xFFFFFFFF \n"
monitor long 0xFFFFF128 0xFFFFFFFF
@"Writing 0xFFFFFFFF @ address 0xFFFFF128\r\n"
335^done
(gdb)
336 monitor reset
monitor reset
&"monitor reset \n"
@"Resetting target\r\n"
336^done
(gdb)
337 monitor speed 30
&"monitor speed 30 \n"
monitor speed 30
@"JTAG speed set to 30 kHz\r\n"
337^done
(gdb)
338 monitor speed adaptive
monitor speed adaptive
&"monitor speed adaptive \n"
@"Select adaptive clocking instead of fixed JTAG speed\r\n"
338^done
(gdb)
339 monitor long 0xfffffd44 0x00008000
monitor long 0xfffffd44 0x00008000
&"monitor long 0xfffffd44 0x00008000 \n"
@"Writing 0x00008000 @ address 0xFFFFFD44\r\n"
339^done
(gdb)
340 echo Configuring the master clock...\n
echo Configuring the master clock...
&"echo Configuring the master clock...\\n \n"
~"Configuring the master clock...\n"
Configuring the master clock...
340^done
(gdb)
341 set *0xFFFFFC20 = 0x00004001
&"set *0xFFFFFC20 = 0x00004001 \n"
set *0xFFFFFC20 = 0x00004001
341^done
(gdb)
342 monitor sleep 100
monitor sleep 100
&"monitor sleep 100\n"
@"Sleep 100ms\r\n"
342^done
(gdb)
343 set *0xFFFFFC30 = 0x00000001
&"set *0xFFFFFC30 = 0x00000001 \n"
set *0xFFFFFC30 = 0x00000001
343^done
(gdb)
344 set *0xFFFFFC28 = 0x2048BF07
&"set *0xFFFFFC28 = 0x2048BF07 \n"
set *0xFFFFFC28 = 0x2048BF07
344^done
(gdb)
345 monitor sleep 100
&"monitor sleep 100\n"
monitor sleep 100
@"Sleep 100ms\r\n"
345^done
(gdb)
346 set *0xFFFFFC30 = 0x00000101
set *0xFFFFFC30 = 0x00000101
&"set *0xFFFFFC30 = 0x00000101 \n"
346^done
(gdb)
347 monitor sleep 100
monitor sleep 100
&"monitor sleep 100\n"
@"Sleep 100ms\r\n"
347^done
(gdb)
348 set *0xFFFFFC30 = 0x00000102
&"set *0xFFFFFC30 = 0x00000102 \n"
set *0xFFFFFC30 = 0x00000102
348^done
(gdb)
349 monitor sleep 100
&"monitor sleep 100\n"
monitor sleep 100
@"Sleep 100ms\r\n"
349^done
(gdb)
350 echo Master clock ok.\n
echo Master clock ok.
&"echo Master clock ok.\\n \n"
~"Master clock ok.\n"
Master clock ok.
350^done
(gdb)
351 echo Configuring the SDRAM controller...\n
echo Configuring the SDRAM controller...
&"echo Configuring the SDRAM controller...\\n \n"
~"Configuring the SDRAM controller...\n"
Configuring the SDRAM controller...
351^done
(gdb)
352 set *0xFFFFED20 = 0x1000A
set *0xFFFFED20 = 0x1000A
&"set *0xFFFFED20 = 0x1000A \n"
352^done
(gdb)
353 set *0xFFFFE208 = 0x85227259
&"set *0xFFFFE208 = 0x85227259 \n"
set *0xFFFFE208 = 0x85227259
353^done
(gdb)
354 set *0xFFFFE200 = 0x2
&"set *0xFFFFE200 = 0x2 \n"
set *0xFFFFE200 = 0x2
354^done
(gdb)
355 set *0x20000000 = 0
&"set *0x20000000 = 0 \n"
set *0x20000000 = 0
355^done
(gdb)
356 set *0xFFFFE200 = 0x4
&"set *0xFFFFE200 = 0x4 \n"
set *0xFFFFE200 = 0x4
356^done
(gdb)
357 set *0x20000000 = 0x1
set *0x20000000 = 0x1
&"set *0x20000000 = 0x1 \n"
357^done
(gdb)
358 set *0xFFFFE200 = 0x4
&"set *0xFFFFE200 = 0x4 \n"
set *0xFFFFE200 = 0x4
358^done
(gdb)
359 set *0x20000000 = 0
&"set *0x20000000 = 0 \n"
set *0x20000000 = 0
359^done
(gdb)
360 set *0xFFFFE200 = 0x4
set *0xFFFFE200 = 0x4
&"set *0xFFFFE200 = 0x4 \n"
360^done
(gdb)
361 set *0x20000000 = 0
set *0x20000000 = 0
&"set *0x20000000 = 0 \n"
361^done
(gdb)
362 set *0xFFFFE200 = 0x4
set *0xFFFFE200 = 0x4
&"set *0xFFFFE200 = 0x4 \n"
362^done
(gdb)
363 set *0x20000000 = 0
&"set *0x20000000 = 0 \n"
set *0x20000000 = 0
363^done
(gdb)
364 set *0xFFFFE200 = 0x4
set *0xFFFFE200 = 0x4
&"set *0xFFFFE200 = 0x4 \n"
364^done
(gdb)
365 set *0x20000000 = 0
&"set *0x20000000 = 0 \n"
set *0x20000000 = 0
365^done
(gdb)
366 set *0xFFFFE200 = 0x4
&"set *0xFFFFE200 = 0x4 \n"
set *0xFFFFE200 = 0x4
366^done
(gdb)
367 set *0x20000000 = 0
&"set *0x20000000 = 0 \n"
set *0x20000000 = 0
367^done
(gdb)
368 set *0xFFFFE200 = 0x4
&"set *0xFFFFE200 = 0x4 \n"
set *0xFFFFE200 = 0x4
368^done
(gdb)
369 set *0x20000000 = 0
&"set *0x20000000 = 0 \n"
set *0x20000000 = 0
369^done
(gdb)
370 set *0xFFFFE200 = 0x4
&"set *0xFFFFE200 = 0x4 \n"
set *0xFFFFE200 = 0x4
370^done
(gdb)
371 set *0x20000000 = 0
set *0x20000000 = 0
&"set *0x20000000 = 0 \n"
371^done
(gdb)
372 set *0xFFFFE200 = 0x3
set *0xFFFFE200 = 0x3
&"set *0xFFFFE200 = 0x3 \n"
372^done
(gdb)
373 set *0x20000020 = 0xCAFEDEDE
&"set *0x20000020 = 0xCAFEDEDE \n"
set *0x20000020 = 0xCAFEDEDE
373^done
(gdb)
374 set *0xFFFFE204 = 0x65B
set *0xFFFFE204 = 0x65B
&"set *0xFFFFE204 = 0x65B\n"
374^done
(gdb)
375 set *0xFFFFE200 = 0
&"set *0xFFFFE200 = 0\n"
set *0xFFFFE200 = 0
375^done
(gdb)
376 set *0x20000000 = 0
&"set *0x20000000 = 0\n"
set *0x20000000 = 0
376^done
(gdb)
377 echo SDRAM configuration ok.\n
echo SDRAM configuration ok.
&"echo SDRAM configuration ok.\\n \n"
~"SDRAM configuration ok.\n"
SDRAM configuration ok.
377^done
(gdb)
378 set *(unsigned int)0x200000 = 0xe59ff018
set *(unsigned int)0x200000 = 0xe59ff018
&"set *(unsigned int)0x200000 = 0xe59ff018 \n"
378^done
(gdb)
379 set *(unsigned int)0x200020 = 0x20000000
&"set *(unsigned int)0x200020 = 0x20000000 \n"
set *(unsigned int)0x200020 = 0x20000000
379^done
(gdb)
380 set *(unsigned int)0xFFFFEF00 = 0x3
set *(unsigned int)0xFFFFEF00 = 0x3
&"set *(unsigned int)0xFFFFEF00 = 0x3 \n"
380^done
(gdb)
381 set remote memory-write-packet-size 1025
&"set remote memory-write-packet-size 1025 \n"
set remote memory-write-packet-size 1025
381^done
(gdb)
382 set remote memory-write-packet-size fixed
&"set remote memory-write-packet-size fixed \n"
set remote memory-write-packet-size fixed
382^done
(gdb)
383 set remote memory-read-packet-size 1025
&"set remote memory-read-packet-size 1025 \n"
set remote memory-read-packet-size 1025
383^done
(gdb)
384 set remote memory-read-packet-size fixed
&"set remote memory-read-packet-size fixed \n"
set remote memory-read-packet-size fixed
384^done
(gdb)
385 load
load
&"load\n"
~"Loading section .fixed, size 0x3d8e0 lma 0x20000000\n"
Loading section .fixed, size 0x3d8e0 lma 0x20000000
327+download,{section=".fixed",section-size="252128",total-size="1072631"}
327+download,{section=".fixed",section-sent="8928",section-size="252128",total-sent="8928",total-size="1072631"}
327+download,{section=".fixed",section-sent="64416",section-size="252128",total-sent="64416",total-size="1072631"}
327+download,{section=".fixed",section-sent="115776",section-size="252128",total-sent="115776",total-size="1072631"}
327+download,{section=".fixed",section-sent="167216",section-size="252128",total-sent="167216",total-size="1072631"}
327+download,{section=".fixed",section-sent="222464",section-size="252128",total-sent="222464",total-size="1072631"}
~"Loading section .postrelocate, size 0x70 lma 0x2003d8e0\n"
Loading section .postrelocate, size 0x70 lma 0x2003d8e0
327+download,{section=".postrelocate",section-size="112",total-size="1072631"}
~"Start address 0x20000000, load size 252240\n"
Start address 0x20000000, load size 252240
~"Transfer rate: 99 KB/sec, 985 bytes/write.\n"
Transfer rate: 99 KB/sec, 985 bytes/write.
385^done
(gdb)
386 thbreak main
&"thbreak main \n"
thbreak main
~"Hardware assisted breakpoint 1 at 0x200004b0: file main.c, line 90.\n"
Hardware assisted breakpoint 1 at 0x200004b0: file main.c, line 90.
386^done
(gdb)
387-break-list
387^done,BreakpointTable={nr_rows="1",nr_cols="6",hdr=[{width="7",alignment="-1",col_name="number",colhdr="Num"},{width="14",alignment="-1",col_name="type",colhdr="Type"},{width="4",alignment="-1",col_name="disp",colhdr="Disp"},{width="3",alignment="-1",col_name="enabled",colhdr="Enb"},{width="10",alignment="-1",col_name="addr",colhdr="Address"},{width="40",alignment="2",col_name="what",colhdr="What"}],body=[bkpt={number="1",type="hw breakpoint",disp="del",enabled="y",addr="0x200004b0",func="main",file="main.c",fullname="C:/SAM/modem/getting-started-project/main.c",line="90",times="0"}]}
(gdb)
388 echo \nThe following value should be 0x30008000\n
&"echo \\nThe following value should be 0x30008000\\n \n"
~"\n"
echo
The following value should be 0x30008000
~"The following value should be 0x30008000\n"
The following value should be 0x30008000
388^done
(gdb)
389 p/x *0xFFFFFD44
&"p/x *0xFFFFFD44 \n"
p/x *0xFFFFFD44
~"$1 = 0x8000\n"
$1 = 0x8000
389^done
(gdb)
390 continue
&"continue\n"
continue[/size]
I would be very grateful if someone could point out the cause of the the "mi_cmd_break_watch" error. The debugging session suspends and never reaches main().
Once I have a good version of the GDB init script I will gladly post it in this forum. I am almost certain it is correct.
Thanks very much.
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