Trace 32 - 기초과정 중 내용

 

on chip break point 제한
do not real-time tracing

ETM
38 pins

 - file load -
 
Data.LOAD.Elf <fileName> [/opt]
Data.LOAD.Binary <fileName> [/opt]

ex.
data.load.elf * /nocode
하고 t32-> debug-> project.axf 를 열도록 한다.

 - Load option
 Compare
 NOCODE
 NosYmbol
 NoClear ; do not delete the symbols written previsouly
 VM ; VM, virtual memory, is to download cod to the virtual memory
 PlusVm ; 
 
 
 
 C:0x30000000 <- SDRAM
 
 32M binary
 
  - Dump - 
 // dump
 data.save.binary test.bin 0x30000000++0xfff
 
 d <- dump
 
 
 data.load.binary c:\t32\test.bin vm:0x90000000++0xfff
 하면 virtual 로 upload (PC에 upload됨)
 
 little endian코드를 big endian으로 올리는 경우
 swap option사용
 
 data.save.binary test.bin 0x30000000++0xfff
 data.load.binary c:\t32\test.bin vm:0x90000000++0xfff
 d vm:0x90000000

--------------------------- cmm file -----------------
// B:: <- ICD should be followed by B::
B::

// RESET
sys.res

sys.cpu s3c2410x

// JTAG CLK.
sys.jc 10.Mhz

// UP
;sys.m.u == sys.u
sys.u

data.load.elf c:\t32\example\debug\project.axf /NOCODE

sYmbol.SourcePATH + C:\T32\example\교육용코드

MAP.BOnchip 0x0--0x3FFFFF

GO Main
ENDDO
----------------------------------------------------

data.view 0x0--0x1000

symbol 정보를 볼 수 없을 경우(when you moved your source code path)
you can see the symbol information by adding symbol path.. like below

 - symbol 정보 볼 수 있도록 지정 - 
symbol.SPATH.List <-
and then Add Dir..
; or you can just use your mouse to show up the window having symbol path

 - go 사용하여 워하는 곳으로 pc를 옮기기 -
go ..
if you want to go to the function you have determined to go there.
the name of the function is 'func0'

ex.
B:: go func0 <- you can type like that

 - Peripherals 정보 보기 -
you can see peripherals of the CPU.
by typing like that

ex.
B::per <-

 - 방금 했던 연산 되돌리기 - 
To trace back, type like this
r.undo <-

---- Break point --- 
 - 종류 -
1. onchip break point  ; depends on CPU type
 MPIS has 4 onchip break points
 ARM  has 2 onchip break points
 
2. software break point
 Infinite number of break points
 
default break point of power view is S/W break point

so to avoid checking On-chip break point, you just use below command.
MAP.BOnchip 0x0--0x3FFFFF <-

so you can make a break point as an on-chip break point in this region.

--------------------

 - Area 창에서 print message(디버거에서 뿌리는)를 보기 -
ex.
print "check... Sunny[0] = " v.value(sunny[0])

memory range break point
break.set 0x30000020--0x3000007f <-

ex.
'tptr' is a pointer.
and tptr is pointing some area.

And you have to stop CPU when as soon as tptr has 0x5 value.
How can you do that?

 - answer -
1. d address <- address pointed by tptr
2. fold up break point option by clicking mouse's right button.
3. setting option like below
type -> write
data -> 0x5
data type -> byte
implementation -> Onchip
action -> stop

go !! then you can see break point is made

cmm file
--------------------
1. basic template

b::

~~~

enddo
~~   <- ignored cause ~~ is followed by enddo

--------------------
global <- can be used in the other cmm file
local <- only...in this cmm file

ex.

local &a     <-- definition of variable
local &b &c

&a=10.    <-- give it value (. <- decimal)
&b=0.
&c=0.

&c=&a+&b

print &c
--------ex. calculator ------------
b::
local &a     ;<-- definition of variable
local &b &c

&a=10.   ;<-- give it value (. <- decimal)
&b=0.
&c=0.

local &operator

; user input
print "input value to a->"
enter &a
print "input value to b->"
enter &b
print "input operator(+, -, *, /)->"
enter &operator

if "&operator"=="+"
(
 &c=&a+&b
)
else if "&operator"=="-"
(
 &c=&a-&b
)
else if "&operator"=="*"
(
 &c=&a*&b
)
else if "&operator"=="/"
(
 &c=&a/&b
)

print %d "result=>" &c

 
;if &a>&b
;(
; &c="true"
;)
;else
; &c="false"

 

if "&c"=="true"
 print "c=true"
else
 print "c=false"

print "a와 b를 비교" "&c"

 

enddo

----------ex. control seqeuence of the program --------------
B::
area
area.clear

;r.s pc 0x000011c0 <- set program counter(register set)

break.set again ; b.s again --- ex. b.s fun9\24 ;<- line 24 of fun9
go
wait !run() ; wait till target stops

print "Done.."

print "go main?(y/n)-->"
enter *in

if "&in"=="y"
(
 print "..."
 b.res
 r.s pc main
)
else
(
 b.res
print ".."
go
)

enddo

;----------------------------

loop:
screen  ; monitoring to show freshed screen
step
goto loop

;go
;wait 3.ms ; 3 mili seconds
;wait 3.s ; 3 seconds

 

;break

enddo

----------------------------