C/C++ Question need helep wrap i2c mfrc522

tzfpg

Active Member
Licensed User
i try to wrap the i2c mfrc522 library, i start with simple function LogVersion.
after wrap i get the erro when use it.

error code:
B4X:
B4R Version: 2.51
Parsing code.    (0.00s)
Compiling code.    (0.02s)
Building project    (0.03s)
Compiling & deploying Ino project (LOLIN(WEMOS) D1 R2 & mini - COM5)    Error
Loading configuration...
Initializing packages...
Preparing boards...
Verifying...
In file included from C:\Users\drago\OneDrive\Desktop\rMFRC522\Test1\Objects\bin\sketch\B4RDefines.h:25:0,
                 from C:\Users\drago\OneDrive\Desktop\rMFRC522\Test1\Objects\src\src.ino:1:
rI2CMFRC522.h:11:4: error: 'MFRC522_I2C' does not name a type
    MFRC522_I2C rfid;
    ^
In file included from C:\Users\drago\OneDrive\Desktop\rMFRC522\Test1\Objects\bin\sketch\B4RDefines.h:25:0,
                 from C:\Users\drago\OneDrive\Desktop\rMFRC522\Test1\Objects\bin\sketch\B4RArduino.cpp:1:
rI2CMFRC522.h:11:4: error: 'MFRC522_I2C' does not name a type
    MFRC522_I2C rfid;
    ^
In file included from C:\Users\drago\OneDrive\Desktop\rMFRC522\Test1\Objects\bin\sketch\B4RDefines.h:25:0,
                 from C:\Users\drago\OneDrive\Desktop\rMFRC522\Test1\Objects\bin\sketch\B4RCore.cpp:1:
rI2CMFRC522.h:11:4: error: 'MFRC522_I2C' does not name a type
    MFRC522_I2C rfid;
    ^
In file included from C:\Users\drago\OneDrive\Desktop\rMFRC522\Test1\Objects\bin\sketch\B4RDefines.h:25:0,
                 from C:\Users\drago\OneDrive\Desktop\rMFRC522\Test1\Objects\bin\sketch\b4r_main.cpp:1:
rI2CMFRC522.h:11:4: error: 'MFRC522_I2C' does not name a type
    MFRC522_I2C rfid;
    ^
In file included from C:\Users\drago\OneDrive\Desktop\rMFRC522\Test1\Objects\bin\sketch\B4RDefines.h:25:0,
                 from C:\Users\drago\OneDrive\Desktop\rMFRC522\Test1\Objects\bin\sketch\Scheduler.cpp:2:
rI2CMFRC522.h:11:4: error: 'MFRC522_I2C' does not name a type
    MFRC522_I2C rfid;
    ^
In file included from C:\Users\drago\OneDrive\Desktop\rMFRC522\Test1\Objects\bin\sketch\B4RDefines.h:25:0,
                 from C:\Users\drago\OneDrive\Desktop\rMFRC522\Test1\Objects\bin\sketch\B4RStream.cpp:1:
rI2CMFRC522.h:11:4: error: 'MFRC522_I2C' does not name a type
    MFRC522_I2C rfid;
    ^
In file included from C:\Users\drago\OneDrive\Desktop\rMFRC522\Test1\Objects\bin\sketch\B4RDefines.h:25:0,
                 from C:\Users\drago\OneDrive\Desktop\rMFRC522\Test1\Objects\bin\sketch\rI2CMFRC522.cpp:1:
rI2CMFRC522.h:11:4: error: 'MFRC522_I2C' does not name a type
    MFRC522_I2C rfid;
    ^
exit status 1
C:\Users\drago\OneDrive\Desktop\rMFRC522\Test1\Objects\bin\sketch\rI2CMFRC522.cpp: In member function 'void B4R::I2CMFRC522::Initialize(Byte, B4R::SubVoidArrayByte)':
rI2CMFRC522.cpp:6:19: error: 'rfid' was not declared in this scope
   rfid(chipAddress);
                   ^
C:\Users\drago\OneDrive\Desktop\rMFRC522\Test1\Objects\bin\sketch\rI2CMFRC522.cpp: In member function 'void B4R::I2CMFRC522::LogVersion()':
rI2CMFRC522.cpp:14:3: error: 'rfid' was not declared in this scope
   rfid.PICC_DumpToSerial();
   ^
i attach the library. Hope someone can help me.
 

Attachments

Laurent95

Active Member
Licensed User
i try to wrap the i2c mfrc522 library, i start with simple function LogVersion.
after wrap i get the erro when use it.

error code:
B4X:
B4R Version: 2.51
Parsing code.    (0.00s)
Compiling code.    (0.02s)
Building project    (0.03s)
Compiling & deploying Ino project (LOLIN(WEMOS) D1 R2 & mini - COM5)    Error
Loading configuration...
Initializing packages...
Preparing boards...
Verifying...
In file included from C:\Users\drago\OneDrive\Desktop\rMFRC522\Test1\Objects\bin\sketch\B4RDefines.h:25:0,
                 from C:\Users\drago\OneDrive\Desktop\rMFRC522\Test1\Objects\src\src.ino:1:
rI2CMFRC522.h:11:4: error: 'MFRC522_I2C' does not name a type
    MFRC522_I2C rfid;
    ^
.../...
i attach the library. Hope someone can help me.
Hello all,

@tzfpg :
Indeed, compiler indicate you what's wrong, there aren't class named MFRC522_I2C but a class named MFRC522.
I think in more that you need to change your code, you need to read all to understand better the things.
I didn't tested anything, just reading at all, and i'm not a God in C++, but the class is named like that not like the library name.

Regards.
 
Last edited:

tzfpg

Active Member
Licensed User
Thank you all for yours replied. I already successful wrap the library.
Now testing the library with the hardware, i'll share the library later.
 
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