2837xd code generation - stateflow (4)

16 Chart debugging

  stay Animation You can set the transfer speed of the debugging process .

16.1 Set breakpoint type ：

1）chart Only When entering The breakpoint of ：

After hitting the breakpoint , There will be corresponding signs in the lower left corner .

2）State Breaking point , There are three types ：I、 Get into State   II、 stay State in   III、 sign out State

After hitting the breakpoint ,State2 The corresponding logo will appear in the lower left corner , Click to see the breakpoint type ：

3） Same operation , Transfer can also break into breakpoints ：

4） stay Model Explorer You can set breakpoints for events in ：

16.2 Breakpoint management ：

  Click any breakpoint , Click... In the dialog box that appears Breakpoints List Enter breakpoint management . This breakpoint management is not limited to a certain model , If you open multiple models , Then the breakpoints of multiple models will be displayed on the breakpoint management .

  The breakpoint management interface is as above , The official routine used here （Command Window Input sf_car You can enter ）. On the interface of breakpoint management Condition The meaning is ： When the conditions are met , Breakpoints will take effect . This follows C The middle break point , We sometimes hope that in the cycle , How many times does the loop enter the breakpoint .Hits Is the number of times to enter the breakpoint .
Breakpoints can be located faster Chart What's wrong with .

17 Watch Data

On the signal line , Right click to select join Watch Data Window：

After choosing , Will pop up Watch Data Window The window of . hinder DEBUG that will do .

18 call Work Space Variable

The basic language format of the call is

y=ml.x;          //x Need to be in Work Space Has been defined in ;

Be careful ： Need to put chart The action language of is set to C Verbal action （Matlab Language doesn't work ）

Other operations are the same as routine ：

Here you can quickly define the callback function of the model , Define , Exempt from manual definition （ Please refer to the callback function for details Simulink explain ）：

ml Statements can also be overloaded ：

y=ml('sin(%f)',u);             //u yes Work Space The variable of , there sin The function can be replaced by any Matlab Is a built-in function of 
y=ml.my_sin(u);                //my_sin I wrote it myself matlb Function file 

19 StateFlow call c Code

Write them separately .c and .h The files are placed in the same directory ：

Then enter Configuration Parameters The relevant settings are made in ：

And then in Chart Call in . Here, because the introduction is C Language file , So action language must be chosen C Language .

20 2837d Use Chart Build models and build examples

Here is a real-time timer module , It is divided into initialization module and XINT Module and counter module .

1） Variables are used here Data Store Memory modular , In the attribute, you can Set the type of variable .

2） Initialization module . initialization KEY Used as an external interrupt , Originally wanted to use LED The light indicates the initialization process , But it failed . as a result of ： The generated code will GPIO The two instructions of are placed in step Function to run . Now I think of , Directly add the functions of lighting and extinguishing in the initialization module . Because the code added by the initialization module is always placed at the end of the initialization function . For example ： If the generated code is used GPIO0 As I/O Use , Then it must be initialized in the initialization module . In the initialization code, you can directly use bit operation to GPIO Port assignment can be operated . But the following steps must be used GPIO0.（ Only in this way can it be initialized ）.

3） External interrupt function module , The functions of the two interrupt functions here are the same . Are in interrupt functions , take （0-1 loop ） The value of is stored in the variable （XINT1、XINT2） in . If the last execution XINT function , What's stored is 0, Then the next execution will store 1. This produces the rising edge of a pulse . The corresponding falling edge can be generated . This edge signal can be used as Chart Events .

4）Chart The module realizes the function of counting , Can be XINT1、XINT2 Start and reset the count respectively . there TIC The event is an event that occurs with the step size 0、1 Sequence , If the step size is set to 0.01, So when it comes to execution 100 Time TIC event . It can be considered that 1 second . after 60s will min Designated as +1. Pay attention because ccs Use c Code driven , So here chart The action language must be c Language .

5） experimental result . It's directly on here SCI_A Enter simulation mode , Then press the key to enter Running：