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🎨 EXP headers, ST7920 delays (#22641)

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This commit is contained in:
Scott Lahteine
2021-08-28 15:27:52 -05:00
committed by Scott Lahteine
parent 9b0e196ba2
commit 7704d84419
65 changed files with 626 additions and 692 deletions
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13
Marlin/src/HAL/AVR/HAL.h
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@ -39,6 +39,19 @@
#include <avr/interrupt.h>
#include <avr/io.h>
//
// Default graphical display delays
//
#if F_CPU >= 20000000
#define CPU_ST7920_DELAY_1 DELAY_NS(150)
#define CPU_ST7920_DELAY_2 DELAY_NS( 0)
#define CPU_ST7920_DELAY_3 DELAY_NS(150)
#elif F_CPU == 16000000
#define CPU_ST7920_DELAY_1 DELAY_NS(125)
#define CPU_ST7920_DELAY_2 DELAY_NS( 0)
#define CPU_ST7920_DELAY_3 DELAY_NS(188)
#endif
#ifndef pgm_read_ptr
// Compatibility for avr-libc 1.8.0-4.1 included with Ubuntu for
// Windows Subsystem for Linux on Windows 10 as of 10/18/2019