Firmware2/Marlin/src/HAL/HAL_STM32F1/spi_pins.h

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/**
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* Marlin 3D Printer Firmware
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* Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#pragma once
/**
* HAL for stm32duino.com based on Libmaple and compatible (STM32F1)
*/
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/**
* STM32F1 Default SPI Pins
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*
* SS SCK MISO MOSI
* +-----------------------------+
* SPI1 | PA4 PA5 PA6 PA7 |
* SPI2 | PB12 PB13 PB14 PB15 |
* SPI3 | PA15 PB3 PB4 PB5 |
* +-----------------------------+
* Any pin can be used for Chip Select (SS_PIN)
* SPI1 is enabled by default
*/
#ifndef SCK_PIN
#define SCK_PIN PA5
#endif
#ifndef MISO_PIN
#define MISO_PIN PA6
#endif
#ifndef MOSI_PIN
#define MOSI_PIN PA7
#endif
#ifndef SS_PIN
#define SS_PIN PA4
#endif
#undef SDSS
#define SDSS SS_PIN
#if ENABLED(ENABLE_SPI3)
#define SPI_DEVICE 3
#elif ENABLED(ENABLE_SPI2)
#define SPI_DEVICE 2
#else
#define SPI_DEVICE 1
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#endif