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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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9
Marlin/src/feature/Max7219_Debug_LEDs.cpp
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@@ -60,19 +60,16 @@
#include "../module/planner.h"
#include "../module/stepper.h"
#include "../Marlin.h"
#include "../HAL/Delay.h"
static uint8_t LEDs[8] = { 0 };
#ifdef CPU_32_BIT
// Approximate a 1µs delay on 32-bit ARM
void SIG_DELAY() {
int16_t delay_cycles = CYCLES_PER_MICROSECOND - 10;
while (delay_cycles >= 10) { DELAY_NOPS(6); delay_cycles -= 10; }
if (delay_cycles > 0) DELAY_NOPS(delay_cycles);
}
#define SIG_DELAY() DELAY_US(1)
#else
// Delay for 0.1875µs (16MHz AVR) or 0.15µs (20MHz AVR)
#define SIG_DELAY() DELAY_3_NOP
#define SIG_DELAY() DELAY_NS(188)
#endif
void Max7219_PutByte(uint8_t data) {