53 lines
2.2 KiB
C
53 lines
2.2 KiB
C
/**
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* Marlin 3D Printer Firmware
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* Copyright (C) 2016, 2017 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 <http://www.gnu.org/licenses/>.
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*
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*/
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/**
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* Test Arduino Due specific configuration values for errors at compile-time.
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*/
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/**
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* HARDWARE VS. SOFTWARE SPI COMPATIBILITY
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*
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* DUE selects hardware vs. software SPI depending on whether one of the hardware-controllable SDSS pins is in use.
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*
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* The hardware SPI controller doesn't allow software SPIs to control any shared pins.
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*
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* When DUE software SPI is used then Trinamic drivers must use the TMC softSPI.
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*
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* When DUE hardware SPI is used then a Trinamic driver can use either its hardware SPI or, if there are no shared
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* pins, its software SPI.
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*
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* Usually the hardware SPI pins are only available to the LCD. This makes the DUE hard SPI used at the same time
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* as the TMC2130 soft SPI the most common setup.
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*/
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#define _IS_HW_SPI(P) (defined(TMC_SW_##P) && (TMC_SW_##P == MOSI_PIN || TMC_SW_##P == MISO_PIN || TMC_SW_##P == SCK_PIN))
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#if ENABLED(SDSUPPORT) && ENABLED(HAVE_TMC2130)
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#if ENABLED(TMC_USE_SW_SPI)
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#if DISABLED(DUE_SOFTWARE_SPI) && (_IS_HW_SPI(MOSI) || _IS_HW_SPI(MISO) || _IS_HW_SPI(SCK))
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#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."
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#endif
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#elif ENABLED(DUE_SOFTWARE_SPI)
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#error "DUE software SPI is required but is incompatible with TMC2130 hardware SPI. Enable TMC_USE_SW_SPI to fix."
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#endif
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#endif
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