I2C Register contents is missing while debugging (F28027F)

Maria Todorova

Guru 13185 points

Other Parts Discussed in Thread: MOTORWARE

Hello all,

I have adapted the I2C APIs to Motorware 12 project.

Now I want to debug whether the APIs work well or not.

The problem is I can not find the I2C registers to be watched in i2cHandle that I made in halHandle while debugging.

As seen in this picture below, the address is correct (0x00007900), and I have put the init in HAL_init():

// Init I2C A registers
obj->i2cHandle = I2C_init((void *) I2CA_BASE_ADDR, sizeof(I2C_Obj));

Compared to SCI (sciHandle) that I have added too to halHandle, the I2C registers are missing!

Why is that? What did I miss?

Thanks for the help.

Best regards,

Maria

Update: My I2C APIs works well but this problem is still exist that I can not see I2C registers in i2cHandle.

over 11 years ago

0 Trey German289 over 11 years ago

TI__Mastermind 22025 points

Maria,

Sorry for the slow response on this one. Things have been crazy here.

Can you attach you i2c.c and i2c.h files for me to take a look at? If I can recreate the issue here it will be easier for me to get it fixed.

BR,

0 Maria Todorova over 11 years ago in reply to Trey German289

Guru 13185 points

Hello Trey,

Thanks for the response.

Here is the zip file with i2c.h and i2c.c inside

6758.motorware12-f2802x-I2C.zip

I put these 2 files in C:\ti\motorware\motorware_1_01_00_12\sw\drivers\i2c\src\32b\f28x\f2802x.

Thank you!

Best regards,

Maria

0 Trey German289 over 11 years ago in reply to Maria Todorova

TI__Mastermind 22025 points

Maria,

I spent some time looking at this today and talking with the motorware guys, and we don't have an answer for you quite yet. Check back tomorrow and we should have a solution for you.

BR,

0 Maria Todorova over 11 years ago in reply to Trey German289

Guru 13185 points

Hello Trey (and motorware guys),

Thanks a lot!

Since my I2C works well, I am quite happy with it so don't worry, take your time.

Just please give me update if you find something. Thank you!

Best regards,

Maria

0 Trey German289 over 11 years ago in reply to Maria Todorova

TI__Mastermind 22025 points

Maria,

We honestly aren't sure why handle works for sci/spi but doesn't for your i2c driver. In the future MW is moving to use a handle definition as follows:

typedef struct _SPI_Obj_ *SPI_Handle;

Doing this links the handle to the structure and enables the register view in CCS. I recommend you implement your I2c driver this way.

BR,

0 Maria Todorova over 11 years ago in reply to Trey German289

Guru 13185 points

OK, Trey, thanks a lot!

I will try with this type and let you know later.

Best regards,

Maria

0 Maria Todorova over 11 years ago in reply to Trey German289

Guru 13185 points

Hello Trey,

I modified I2C_Handle based on:

Trey German said:
typedef struct _SPI_Obj_ *SPI_Handle;

//typedef struct _I2C_Handle_ *I2C_Handle;
typedef struct _I2C_Obj_ *I2C_Handle;

And yes, it works! I can see I2C registers in halHandle now.

Thanks a lot!

Best regards,

Maria

0 Andrew Buckin over 8 years ago in reply to Maria Todorova

Expert 2130 points

Hello, Maria,

Does your code work in MW17?
What changes and where to add to the project.

Thank you.

Andrew.

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I2C Register contents is missing while debugging (F28027F)