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Apply standard pin test to buttons

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This is the easiest way to make button pin testing consistent without
renaming all the button pins. Just make a macro especially for testing
if button pins are set, since they are named consistently in the pins
files.
This commit is contained in:
Scott Lahteine 2016-03-27 04:25:33 -07:00
parent f2ffc8b28b
commit f543aaa54e
5 changed files with 48 additions and 46 deletions
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5
Marlin/ultralcd.h
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@ -24,9 +24,14 @@
#define ULTRALCD_H
#include "Marlin.h"
#if ENABLED(ULTRA_LCD)
#include "buzzer.h"
#define BUTTON_EXISTS(BN) (defined(BTN_## BN) && BTN_## BN >= 0)
#define BUTTON_PRESSED(BN) !READ(BTN_## BN)
int lcd_strlen(const char* s);
int lcd_strlen_P(const char* s);
void lcd_update();