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I want to get the input (or set the output) with a variable mask instead of a fixed mask. This last one is possible in Flowcode. But, as far as I know, the variable mask is not possible with Flowcode. The solution in C-code seems simple. For input use the FCP_SET() and for output use FCP_GET(), with the third variable the mask byte.

But where can I find the meaning of the other paramters of these functions?

With kind regards

Jan Lichtenbelt

Hello Jan,

You can find the definitions of those functions in the FAMILY_CAL_IO.h file in the CAL directory.

This is the prototype.

FCP_GET(Type, Port, Mask, Shift)
FCP_SET(Type, Port, Mask, Shift, Source)

Type:

B - Byte - Port Byte - Mainly on multi byte devices 16-bit PICs, ARM etc
M - Masked
F - Full Port

A simple way of allowing for data and mask is like this.

Mask = 0x18
Data = 0x08

Reg = (Reg & ~Mask) | (Mask & Data)

A more robust way to do the same thing but using absolute values might be to use something like this.

Shift = 3
Mask = 0x3
Data = 0x1

Reg = (Reg & ~(Mask << Shift)) | ((Mask & Data) << Shift)

Dear Ben

I tried to set the Ports B0, B1 etc to 1, using the variable shift=0,1.2..7
But it does not works. What to do?

With kind regards

Jan

Hi Jan,
You are nearly there, just need to adjust the mask as well ...

Hi ...

It works. Please find an example with running light. I want to use it for an other application.

With kind regrads

Jan Lichtenbelt