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Editing the Program
Click on the Edit box on the task bar. This will set Dynamic C into the edit mode so that
you can change the program. Use the Save as choice on the File menu to save the file
with a new name so as not to change the demo program. Save the file as MYTEST.C . Now
change the number 25000 in the for (.. statement to 10000. Then use the F9 key to
recompile and run the program. The LED will start flashing, but it will flash much faster
than before because you have changed the loop counter terminal value from 25000 to
10000.
Watching Variables Dynamically
Go back to edit mode (select edit) and load the program DEMOJR2.C using the File menu
Open command. This program is the same as the first program, except that a variable k
has been added along with a statement to increment k each time around the endless loop.
The statement:
runwatch();
has been added. This is a debugging statement that makes it possible to view variables
while the program is running.
Use the F9 key to compile and run DEMOJR2.C . Now type <Ctrl-W> to open the watch
window and add the watch expression k to the top of the list of watch expressions. Now
type <Ctrl-U> . Each time you type <Ctrl-U> , you will see the current value of k , which is
incrementing about 5 times a second.
As an experiment add another expression to the watch window:
k*5
Then type <Ctrl-U> several times to observe the watch expressions k and k*5 .
Summary of Features
So far you have practiced using the following features of Dynamic C.
? Loading, compiling and running a program. When you load a program it appears in an
edit window. You can compile by selecting Compile on the task bar or from the
Compile menu. When you compile the program, it is compiled into machine language
and downloaded to the target over the serial port. The execution proceeds to the first
statement of main where it pauses, waiting for you to command the program to run,
which you can do with the F9 key or by selecting Run on the Run menu. If want to
compile and start the program running with one keystroke, use F9 , the run command. If
the program is not already compiled, the run command will compile it first.
? Single-stepping. This is done with the F8 key. The F7 key can also be used for single-
stepping. If the F7 key is used, then descent into subroutines will take place. With the
F8 key the subroutine is executed at full speed when the statement that calls it is
stepped over.
20
Rabbit 2000 Development Kit
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相关PDF资料
101-0523
KIT DEV RABBIT3000/RCM3000
101-1109
KIT EMBEDDED PLC APPLICATION
101-1147
KIT RIO PROGRAM I/O
101-606
CONN SOCKET IDC 60POS W/KEY GOLD
10113616-01531LF
CONN MOD JACK 8PORT 8/8 R/A PCB
10117863-5036010LF
CONN MOD JACK 8/8 R/A PCB
10118061-5005010LF
CONN MOD JACK 2PORT 8/8 R/A PCB
10118062-5001310LF
CONN MOD JACK 4PORT 8/8 R/A PCB
相关代理商/技术参数
101-0359-000
制造商:ITT Interconnect Solutions 功能描述:1010359000 / 101-0359-000 / Circular
10103592
制造商:FCI-CONNECTOR 制造商全称:FCI connector 功能描述:MICRO-USB B-TYPE REVERSE
10103592-0001LF
功能描述:USB接头 5P Quick Connect Micro USB TypeB Plug
RoHS:否 制造商:FCI 产品:USB Type A Connectors 标准:USB 3.0 端口数量: 位置/触点数量:9 型式:Female 电流额定值:1.8 A 安装风格:Through Hole 端接类型:Solder Pin 连接器类型:USB 3.0 Receptacle
10103593
制造商:FCI-CONNECTOR 制造商全称:FCI connector 功能描述:MICRO-USB B-TYPE MID-MOUNT
10103593-0001LF
功能描述:USB接头 5P Quick Connect Micro USB TypeB RCPT
RoHS:否 制造商:FCI 产品:USB Type A Connectors 标准:USB 3.0 端口数量: 位置/触点数量:9 型式:Female 电流额定值:1.8 A 安装风格:Through Hole 端接类型:Solder Pin 连接器类型:USB 3.0 Receptacle
10103593-0001LF
制造商:FCI 功能描述:MICRO USB B, RECEPTACLE, 5POS, SMT RT AN
10103594
制造商:FCI-CONNECTOR 制造商全称:FCI connector 功能描述:MICRO-USB B-TYPE RECEP.
10103594-0001LF
功能描述:USB接头 5P Quick Connect Micro USB TypeB Rcpt
RoHS:否 制造商:FCI 产品:USB Type A Connectors 标准:USB 3.0 端口数量: 位置/触点数量:9 型式:Female 电流额定值:1.8 A 安装风格:Through Hole 端接类型:Solder Pin 连接器类型:USB 3.0 Receptacle