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MikeW
Joined: 15 Sep 2003
Posts: 185
Location: Warrington UK
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| using #define before the processor is defined |
 Posted: Tue Jan 01, 2019 6:45 am |
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I am trying to generalise Ttelmah's excellent SSD1306 driver.
Rather than define the processor and fuses at the top of the main program,
I want to have a multiple choice of processor and fuses etc, and select at the top of the main program file.
It won't allow that, any help ?
| Code: | /*
#include <18F13K22.h>
#fuses INTRC_IO, PLLEN, NOXINST, NOMCLR, NOLVP, STVREN, PCLKEN, NOFCMEN
#fuses NOIESO, NOPUT, BORV22, NODEBUG, NOPROTECT, NOWDT, WDT512
#fuses HFOFST, NOCPD, NOCPB, NOWRTD, NOWRTC, NOWRTB
#USE DELAY(INTERNAL=32MHz)
#USE I2C(I2C1, MASTER, FAST=400000, FORCE_HW)
*/
#define 18F13K22
#include "SSD1306_Processorand Fuses_Header.h"// replaces the above to allow for diferent processors |
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MikeW
Joined: 15 Sep 2003
Posts: 185
Location: Warrington UK
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| Posted: Tue Jan 01, 2019 6:48 am |
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Found it, the compiler won't allow the number, if I change it to
| Code: |
#define P18F13K22 or PIC_P18F13K22 |
it compiles. |
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Ttelmah
Joined: 11 Mar 2010
Posts: 19730
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| Posted: Tue Jan 01, 2019 8:19 am |
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That's not 'the compiler'. That's C....
The 'name' of the macro, is required to be a valid C identifier.
The first rule for identifiers, is that the first character can only be
a-z, A-Z or _ |
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