55 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			55 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/**
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 * Marlin 3D Printer Firmware
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 * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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 *
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 * Based on Sprinter and grbl.
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 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
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 *
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 * This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
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 *
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 */
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#pragma once
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#include "softspi.h"
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#include <stdint.h>
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template<uint8_t MisoPin, uint8_t MosiPin, uint8_t SckPin>
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class SPIclass {
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  static SoftSPI<MisoPin, MosiPin, SckPin> softSPI;
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  public:
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    FORCE_INLINE static void init() { softSPI.begin(); }
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    FORCE_INLINE static void send(uint8_t data) { softSPI.send(data); }
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    FORCE_INLINE static uint8_t receive() { return softSPI.receive(); }
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};
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// Hardware SPI
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template<>
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class SPIclass<SD_MISO_PIN, SD_MOSI_PIN, SD_SCK_PIN> {
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  public:
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    FORCE_INLINE static void init() {
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      OUT_WRITE(SD_SCK_PIN, LOW);
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      OUT_WRITE(SD_MOSI_PIN, HIGH);
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      SET_INPUT_PULLUP(SD_MISO_PIN);
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    }
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    FORCE_INLINE static uint8_t receive() {
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      #if defined(__AVR__) || defined(__MK20DX256__) || defined(__MK64FX512__) || defined(__MK66FX1M0__) || defined(__IMXRT1062__)
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        SPDR = 0;
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        for (;!TEST(SPSR, SPIF););
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        return SPDR;
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      #else
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        return spiRec();
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      #endif
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    }
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};
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