Справочник Пользователя для Renesas R0E530640MCU00

R0E530640MCU00 User’s Manual 

5. Debugging Functions 

REJ10J1733-0100  Rev.1.00  Apr. 01, 2008 
Page 147 of 229 

 

 

 
 

5.11  Measuring Code Coverage 

 
5.11.1  Measuring Code Coverage 
Code coverage is the function to indicate the ‘digestion’ degree of test, i.e., “to what degree tests have been carried out on 
software code (pass).” 
Instruction execution information is displayed at C/C++ and assembler levels. 
This function collects instruction execution information from a program without causing it to break. Therefore, the realtime 
capability of the user program will not be lost. 
The coverage result is updated upon a break. 
 
The E100 emulator supports C0: Instruction coverage rate and C1: Branch coverage rate. 
 

Table 5.27 Code coverage definition 

C0: Instruction coverage rate 

All statements within code are executed at least once. 

C1: Branch coverage rate 

All branches within code are executed at least once. 

 
 
The E100 emulator comes with up to a 2-Mbyte code coverage memory when using the C0 + C1 level coverage, and up to a 1-
Mbyte code coverage memory when using the C1 level coverage. 
With initial settings, the code coverage memory is allocated automatically to addresses in the ROM and RAM areas in this 
order. 
 
 
5.11.2  Opening the Code Coverage Window 

Choose Code -> Code Coverage from the View menu or click the Code Coverage toolbar button [

]. 

The Code Coverage window initially appears in a blank state.