[ECOS] Re: pragma pack
Thu Jan 10 10:29:00 GMT 2008
Thanks for the link ^^ I'm a bit dumb when dealing with that kind of things.
The problem is when I put the data in flash and read it thereafter, I
obtain the value 768 for timestamp, which is 300 in hex.
I must have made something wrong there ...
On Jan 10, 2008 11:06 AM, EXTERNAL Gladis Olaf (Praktikant; CR/AEM)
> -----Original Message-----
> From: firstname.lastname@example.org
> [mailto:email@example.com] On Behalf Of Alexandre
> Sent: Donnerstag, 10. Januar 2008 10:43
> To: Paul D. DeRocco
> Cc: firstname.lastname@example.org
> Subject: Re: [ECOS] Re: pragma pack
> > Actually i had some problems accessing my packed structures without
> > flows, I think that may help resolve things a bit.
> > Eg with things like that:
> > cyg_uint8 i = 0;
> > struct s_pelco_pattern_array a;
> > a.command2_byte = i++;
> > a.data3 = i++;
> > a.data4 = i++;
> > a.timestamp = i;
> > I finish having a structure which looks like this in memory:
> > cm2: 0x00
> > data3: 0x01
> > data4: 0x02
> > ts: 0x0300
> > Which is really not what i want to have eventually.
> I would say this looks correct.
> Maybe you thought there must be 0x0003 in the last one?
> But if you have a little endian CPU it swaps the bytes.
> If you have more questions about Endianness take a look at
> Greets olaf
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