I have this structure:

struct Record {
                UInt16 a;
                UInt16 b;
                UInt8 c;
                UInt16 d;
} ixRec;

the value in record field d is 0 at this point:
then I am trying to change field d with DmWrite like this:

UInt16 val = 0;
val = (UInt16)(memP->d + 1);
err = DmWrite(memP,5,&val,2);

now the value at field d is 256 or 0b0000000100000000
when I use:
err = DmWrite(memP,6,&val,2);
I get the correct result, d is now 1 or 0b0000000000000001

>From my record structure, I picked 5 as the byte offset value for DmWrite,
but that doesn't work, so I have to pick offset 6, which is the low byte
of the UInt16 field. That seems backwards because I am writing bytes
5 and 6 starting at 6, can someone explain or am I missing something
else ?
thanks.


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