MSPM0G3507: gI2C error

Orest Fedan

Prodigy 20 points

Part Number: MSPM0G3507

Tool/software:

I would like to know how to troubleshoot this type of error:

4 months ago

0 Sal Ye 4 months ago

TI__Mastermind 24405 points

Hi Orest,

It looks like that you does not define the variables - gI2C, please check you include files whether it contain the definition of the variable.

B.R.

Sal

0 Orest Fedan 4 months ago in reply to Sal Ye

Prodigy 20 points

Hi Sal,

I hunted all over the include files and header files but could not find the variable "gI2C" anywhere. Please tell me where this variable is defined. This variable was auto-generated by the config.

B.R.

Orest

0 Bruce McKenney 4 months ago in reply to Orest Fedan

Guru 99265 points

Can you provide some context? Where did i2c_target.c come from? What was auto-generated (and how was it done)?

0 Orest Fedan 4 months ago in reply to Orest Fedan

Prodigy 20 points

I created a new project for MSPM0G3507 using "i2c_target" "Generic I2C Communication Module - Target code". I then configured the I/O pin. I left I2C alone.

+1 Bruce McKenney 4 months ago in reply to Orest Fedan

Guru 99265 points

I found something in "C:\ti\mspm0_sdk_2_04_00_06\examples\nortos\LP_MSPM0G3507\comm_modules\i2c_target". Is that the one?

Line 36 of i2c_target.c says:

> I2C_Instance gI2C;

and it builds properly. Is it possible that line got deleted somehow? Maybe it's useful to import the project again.

0 Orest Fedan 4 months ago in reply to Bruce McKenney

Prodigy 20 points

yes, this line:

I2C_Instance gI2C;

somehow got deleted. Now it builds fine thank you for your help.

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MSPM0G3507: gI2C error