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Better handling of DELAY_NS and DELAY_US (#10716)

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Co-Authored-By: ejtagle <ejtagle@hotmail.com>
This commit is contained in:
Scott Lahteine
2018-05-12 08:34:04 -05:00
committed by GitHub
parent f5aaa2d6c0
commit a1062eec5b
21 changed files with 273 additions and 268 deletions
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11
Marlin/src/pins/pins_STM32F4.h
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@@ -176,19 +176,14 @@
//
// ST7920 Delays
//
#define STM_NOP __asm__("nop\n\t")
#define STM_DELAY_SHORT { STM_NOP; STM_NOP; STM_NOP; STM_NOP; }
#define STM_DELAY_LONG { STM_DELAY_SHORT; STM_DELAY_SHORT; STM_NOP; STM_NOP; }
#ifndef ST7920_DELAY_1
#define ST7920_DELAY_1 { STM_DELAY_SHORT; STM_DELAY_SHORT; }
#define ST7920_DELAY_1 DELAY_NS(96)
#endif
#ifndef ST7920_DELAY_2
#define ST7920_DELAY_2 { STM_DELAY_SHORT; }
#define ST7920_DELAY_2 DELAY_NS(48)
#endif
#ifndef ST7920_DELAY_3
#define ST7920_DELAY_3 { STM_DELAY_LONG; STM_DELAY_LONG; STM_DELAY_LONG; STM_DELAY_LONG; STM_DELAY_LONG; STM_DELAY_LONG; }
#define ST7920_DELAY_3 DELAY_NS(715)
#endif