TMS320C6746: Alignment

Error correction.
tbl[10]; ⇒ long tbl[10];

Hello Suzuki,

Yoshiaki Suzuki said:

The order of these variables is important.

Are these global variables? Why is the order important? You code should not depend on the order by which these variables are defined.

If you want to avoid packing between these 2 variables, you could put them in a structure and have the array at the beginning. For example:

typedef struct {
    long tbl[10];
    long data;
}myData;

Regards,

Jianzhong

Hi Jianzhong.
Thank you very much for your answer.

I am using MODBUS to configure devices.
Each register in MODBUS has a specific order.
The order is determined by the specifications and cannot be changed.
Is there any way to eliminate the padding?

It is difficult to deal with "structures" because the program changes would be huge.

Thank you very much for your help.
Suzuki

Can you try the method suggested by George Mock in this thread?

Hi Jianzhong

My problem is that the padding inserts extra data and the data order is not as per the specification.
Is there any way to stop the padding function?

Thank you very much for your help.
Suzuki

What compiler are you using? Let me loop in our compiler expert.

Hi Jianzhong.
The compiler is "C6000 v8 Compiler Tools 8.3.8".
Thank you very much for your help..
Suzuki

Hi George.

It is difficult to deal with "structures" because of the huge amount of changes in the program.
Is there any way to handle this without using structures?

Thank you for your time.
Suzuki