/**
* Marlin 3 D Printer Firmware
* Copyright ( c ) 2020 MarlinFirmware [ https : //github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl .
* Copyright ( c ) 2011 Camiel Gubbels / Erik van der Zalm
*
* 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 < https : //www.gnu.org/licenses/>.
*
*/
# pragma once
/**
* Test Arduino Due specific configuration values for errors at compile - time .
*/
/**
* HARDWARE VS . SOFTWARE SPI COMPATIBILITY
*
* DUE selects hardware vs . software SPI depending on whether one of the hardware - controllable SDSS pins is in use .
*
* The hardware SPI controller doesn ' t allow software SPIs to control any shared pins .
*
* When DUE software SPI is used then Trinamic drivers must use the TMC softSPI .
*
* When DUE hardware SPI is used then a Trinamic driver can use either its hardware SPI or , if there are no shared
* pins , its software SPI .
*
* Usually the hardware SPI pins are only available to the LCD . This makes the DUE hard SPI used at the same time
* as the TMC2130 soft SPI the most common setup .
*/
# define _IS_HW_SPI(P) (defined(TMC_SW_##P) && (TMC_SW_##P == SD_MOSI_PIN || TMC_SW_##P == SD_MISO_PIN || TMC_SW_##P == SD_SCK_PIN))
# if ENABLED(SDSUPPORT) && HAS_DRIVER(TMC2130)
# if ENABLED(TMC_USE_SW_SPI)
# if DISABLED(DUE_SOFTWARE_SPI) && (_IS_HW_SPI(MOSI) || _IS_HW_SPI(MISO) || _IS_HW_SPI(SCK))
# error "DUE hardware SPI is required but is incompatible with TMC2130 software SPI. Either disable TMC_USE_SW_SPI or use separate pins for the two SPIs."
# endif
# elif ENABLED(DUE_SOFTWARE_SPI)
# error "DUE software SPI is required but is incompatible with TMC2130 hardware SPI. Enable TMC_USE_SW_SPI to fix."
# endif
# endif
# if ENABLED(FAST_PWM_FAN) || SPINDLE_LASER_FREQUENCY
# error "Features requiring Hardware PWM (FAST_PWM_FAN, SPINDLE_LASER_FREQUENCY) are not yet supported on DUE."
# endif
# if HAS_TMC_SW_SERIAL
# error "TMC220x Software Serial is not supported on the DUE platform."
# endif