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Posted: **Thu Nov 17, 2011 4:18 pm**

Hello,

An other bug with this chip family :

Flowcode1.c: In function 'FCD_I2C_Master0_MI2C_Init':
Flowcode1.c

error: 'I2CCONbits' undeclared (first use in this function)
Flowcode1.c

error: (Each undeclared identifier is reported only once
Flowcode1.c

error: for each function it appears in.)
Flowcode1.c

error: 'I2CBRG' undeclared (first use in this function)
Flowcode1.c: In function 'FCD_I2C_Master0_MI2C_Start':
Flowcode1.c

error: 'I2CCONbits' undeclared (first use in this function)
Flowcode1.c: In function 'FCD_I2C_Master0_MI2C_Restart':
Flowcode1.c

error: 'I2CCONbits' undeclared (first use in this function)
Flowcode1.c: In function 'FCD_I2C_Master0_MI2C_Stop':
Flowcode1.c

error: 'I2CCONbits' undeclared (first use in this function)
Flowcode1.c: In function 'FCD_I2C_Master0_MI2C_Transmit_Byte':
Flowcode1.c

error: 'I2CTRN' undeclared (first use in this function)
Flowcode1.c

error: 'I2CSTATbits' undeclared (first use in this function)
Flowcode1.c: In function 'FCD_I2C_Master0_MI2C_Receive_Byte':
Flowcode1.c

error: 'I2CCONbits' undeclared (first use in this function)
Flowcode1.c

error: 'I2CRCV' undeclared (first use in this function)

Error returned from [pic30-gcc.exe]

Can you solve this quickly? Impossible to make something with this Flowcode release...

Posted: **Thu Nov 17, 2011 4:59 pm**

Hello,

I'm guessing here but this could help. Go into the project options, enable supplementary code and then click edit supplementary code.

Where you have undeclared errors try defining them as this.

#define I2CCONbits I2C1CONbits

Posted: **Thu Nov 17, 2011 5:21 pm**

Sorry that we've not address your problem(s) before - things are pretty busy here as we gear up to the release of Flowcode V5.

Ben and I have looked at this and a temporary solution is to right-click the I2C component and select "Custom Code". In the window, select {Defines] and edit the code. At the bottom, comment-out the following lines:

Code: Select all

/*
#ifndef I2C1CON
	#define I2C1RCV			I2CRCV
	#define I2C1TRN			I2CTRN
	#define I2C1BRG			I2CBRG
	#define I2C1CON			I2CCON
	#define I2C1STAT		I2CSTAT
	#define I2C1ADD			I2CADD
	#define I2C1RCVbits		I2CRCVbits
	#define I2C1TRNbits		I2CTRNbits
	#define I2C1BRGbits		I2CBRGbits
	#define I2C1CONbits		I2CCONbits
	#define I2C1STATbits	I2CSTATbits
	#define I2C1ADDbits		I2CADDbits
#endif
*/

This allows the file to compile. A similar technique may help solve some of your other issues.

Posted: **Thu Nov 17, 2011 5:34 pm**

Hello,
Sorry I annoying but I tear my hair for several days!

Your tips works, I tried a similar thing by directly changing your I2C component C file.

Now it compiles and I can watch the SDA and SCL line on my screen but if I connect this line to my other card, the µC stop running.
Maybe a hard probleme but if I try with the same pin with the I2C software, no problem. Do you have any idea ?

Thank you both

Posted: **Thu Nov 17, 2011 6:28 pm**

Reducing my pull up resistors from 4.7K to 2.7K solve the problem !

Thank you again.

Posted: **Fri Nov 18, 2011 11:22 am**

Thanks for letting us know Mathy, Glad its working ok for you now.

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