---------- Forwarded message ----------
From: JIA Pei <jp4w...@gmail.com>
Date: Sat, Jun 8, 2013 at 9:54 AM
Subject: Re: [sdcc-devel] error 2: Initializer element is not constant
To: Development chatter about sdcc <sdcc-de...@lists.sourceforge.net>
Thank you for all who have answered my questions !! seriously thank you.
The solutions has been found:
*#include <8052.h>*
*
*
*#define RELAY P1_4*
*#define K1 P2_7*
*
*
*main()*
*{*
*while(1)*
*{*
* if (!K1) RELAY = 0;*
* else RELAY = 1;*
*}*
*}*
Thank you everybody !!!
Best Regards
On Sat, Jun 8, 2013 at 12:54 AM, Frieder Ferlemann <frieder.ferlem...@web.de
> wrote:
> Hi JIA Pei,
>
> Am 07.06.2013 12:29, schrieb JIA Pei:
> > To whom it may concern:
> >
> > I kept obtaining the following error message
> > *error 2: Initializer element is not constant*
>
> That is because P1^4 is not constant: Port1 XOR 4
> (according to C standard) is not known at compile time.
>
> > while building the following code using *MCU8051IDE*, from Compiler
> configuration, *MCU8051IDE *adopts *--std-sdcc89* .
> >
> > #include <reg51.h>
> > sbit RELAY = P1^4;
>
> Have a look at line 110 of reg51.h to see how it
> could be done with the ancient file reg51.h.
>
> Maybe also have a look at section
> 3.4.1 MCS51/DS390 Storage Class Language Extensions
> and finally at one of the more modern header files
> (which use #include <compiler.h>) (like cc2530.h)
> to see how header files can be written so that they
> can be used with different compilers.
>
> Greetings,
> Frieder
>
>
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--
Pei JIA
Email: jp4w...@gmail.com
cell: +1 604-362-5816
Welcome to Vision Open
http://www.visionopen.com
--
Pei JIA
Email: jp4w...@gmail.com
cell: +1 604-362-5816
Welcome to Vision Open
http://www.visionopen.com
------------------------------------------------------------------------------
How ServiceNow helps IT people transform IT departments:
1. A cloud service to automate IT design, transition and operations
2. Dashboards that offer high-level views of enterprise services
3. A single system of record for all IT processes
http://p.sf.net/sfu/servicenow-d2d-j
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