CCS/TMS320F28379D: EtherCat - Slave Stack Code - Mapping Objects

Tool/software: Code Composer Studio

Hi,

i hope you can help me.

I have a question on mapping the in- and outputs in CCS. I have already mapped the objects in SSC, that looks like this:

So i have different data types in my objects.

Now if i follow the description, in CCS i have to modify the functions in my generated .c-file:

In this case the pointer pData is a type of UINT16. If the programm does "pData++" the adress of the pointer move to the next 16bit memory but my variable ***_Enable0x7000 is just 8 bit long and the next variable ***_Power0x7001.PWR1 is also in that adress. That does´nt fit to the memory adress in TwinCat.   

For example:

I write in TwinCat:

***_Power0x7001.PWR1 = 1

Now looking in CCS results, that ***_Power0x7001.PWR1 is still 0 but my first variable ***_Enable0x7000 was changed

The 1 was set in next 8 bit of ***_Enable0x7000 --> HEX: 0x0100.

So my question is, how can i handle the mapping with multiple data types if pData can just by one sort of data types. Do i have to change all my varaibles to one data type? If thats true, in next step of the project i need floating points, so pData should be UINT32 and all my variables too.

With best regards

Willi Konrad