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+/**
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+ * Marlin 3D Printer Firmware
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+ * Copyright (C) 2018 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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+/**
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+ * Support routines for Due
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+ */
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+
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+/**
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+ * Translation of routines & variables used by pinsDebug.h
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+ */
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+
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+#include "Arduino.h"
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+
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+/**
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+ * Due/Marlin quirks
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+ *
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+ * a) determining the state of a pin
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+ * The Due/Arduino status definitions for the g_pinStatus[pin] array are:
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+ * #define PIN_STATUS_DIGITAL_INPUT_PULLUP (0x01)
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+ * #define PIN_STATUS_DIGITAL_INPUT (0x02)
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+ * #define PIN_STATUS_DIGITAL_OUTPUT (0x03)
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+ * #define PIN_STATUS_ANALOG (0x04)
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+ * #define PIN_STATUS_PWM (0x05)
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+ * #define PIN_STATUS_TIMER (0x06)
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+ *
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+ * These are only valid if the following Due/Arduino provided functions are used:
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+ * analogRead
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+ * analogWrite
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+ * digitalWrite
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+ * pinMode
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+ *
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+ * The FASTIO routines do not touch the g_pinStatus[pin] array.
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+ *
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+ * The net result is that both the g_pinStatus[pin] array and the PIO_OSR register
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+ * needs to be looked at when determining if a pin is an input or an output.
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+ *
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+ * b) Due has only pins 6, 7, 8 & 9 enabled for PWMs. FYI - they run at 1KHz
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+ *
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+ * c) NUM_DIGITAL_PINS does not include the analog pins
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+ *
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+ * d) Pins 0-78 are defined for Due but 78 has a comment of "unconnected!". 78 is
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+ * included just in case.
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+ */
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+
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+#define NUMBER_PINS_TOTAL PINS_COUNT
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+
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+#define digitalRead_mod(p) digitalRead(p) // AVR digitalRead disabled PWM before it read the pin
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+#define PRINT_PORT(p)
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+#define NAME_FORMAT(p) PSTR("%-##p##s")
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+#define PRINT_ARRAY_NAME(x) do {sprintf_P(buffer, PSTR("%-" STRINGIFY(MAX_NAME_LENGTH) "s"), pin_array[x].name); SERIAL_ECHO(buffer);} while (0)
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+#define PRINT_PIN(p) do {sprintf_P(buffer, PSTR("%02d"), p); SERIAL_ECHO(buffer);} while (0)
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+#define GET_ARRAY_PIN(p) pin_array[p].pin
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+#define VALID_PIN(pin) (pin >= 0 && pin < (int8_t)NUMBER_PINS_TOTAL ? 1 : 0)
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+#define DIGITAL_PIN_TO_ANALOG_PIN(p) int(p - analogInputToDigitalPin(0))
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+#define IS_ANALOG(P) (((P) >= analogInputToDigitalPin(0)) && ((P) <= analogInputToDigitalPin(NUM_ANALOG_INPUTS - 1)))
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+#define pwm_status(pin) ((g_pinStatus[pin] & 0xF) == PIN_STATUS_PWM) && \
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+ ((g_APinDescription[pin].ulPinAttribute & PIN_ATTR_PWM) == PIN_ATTR_PWM)
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+#define MULTI_NAME_PAD 14 // space needed to be pretty if not first name assigned to a pin
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+
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+bool GET_PINMODE(int8_t pin) { // 1: output, 0: input
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+ volatile Pio* port = g_APinDescription[pin].pPort;
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+ uint32_t mask = g_APinDescription[pin].ulPin;
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+ uint8_t pin_status = g_pinStatus[pin] & 0xF;
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+ return ( (pin_status == 0 && (port->PIO_OSR & mask))
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+ || pin_status == PIN_STATUS_DIGITAL_OUTPUT
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+ || pwm_status(pin));
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+}
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+
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+bool GET_ARRAY_IS_DIGITAL(int8_t pin) {
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+ uint8_t pin_status = g_pinStatus[pin] & 0xF;
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+ return !(pin_status == PIN_STATUS_ANALOG);
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+}
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+
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+void pwm_details(int32_t pin) {
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+ if (pwm_status(pin)) {
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+ uint32_t chan = g_APinDescription[pin].ulPWMChannel;
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+ SERIAL_PROTOCOLPAIR("PWM = ", PWM_INTERFACE->PWM_CH_NUM[chan].PWM_CDTY);
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+ }
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+}
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+
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+/**
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+ * DUE Board pin | PORT | Label
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+ * ----------------+--------+-------
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+ * 0 | PA8 | "RX0"
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+ * 1 | PA9 | "TX0"
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+ * 2 TIOA0 | PB25 |
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+ * 3 TIOA7 | PC28 |
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+ * 4 NPCS1 | PA29 |
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+ * TIOB6 | PC26 |
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+ * 5 TIOA6 | PC25 |
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+ * 6 PWML7 | PC24 |
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+ * 7 PWML6 | PC23 |
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+ * 8 PWML5 | PC22 |
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+ * 9 PWML4 | PC21 |
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+ * 10 NPCS0 | PA28 |
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+ * TIOB7 | PC29 |
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+ * 11 TIOA8 | PD7 |
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+ * 12 TIOB8 | PD8 |
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+ * 13 TIOB0 | PB27 | LED AMBER "L"
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+ * 14 TXD3 | PD4 | "TX3"
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+ * 15 RXD3 | PD5 | "RX3"
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+ * 16 TXD1 | PA13 | "TX2"
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+ * 17 RXD1 | PA12 | "RX2"
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+ * 18 TXD0 | PA11 | "TX1"
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+ * 19 RXD0 | PA10 | "RX1"
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+ * 20 | PB12 | "SDA"
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+ * 21 | PB13 | "SCL"
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+ * 22 | PB26 |
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+ * 23 | PA14 |
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+ * 24 | PA15 |
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+ * 25 | PD0 |
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+ * 26 | PD1 |
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+ * 27 | PD2 |
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+ * 28 | PD3 |
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+ * 29 | PD6 |
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+ * 30 | PD9 |
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+ * 31 | PA7 |
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+ * 32 | PD10 |
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+ * 33 | PC1 |
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+ * 34 | PC2 |
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+ * 35 | PC3 |
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+ * 36 | PC4 |
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+ * 37 | PC5 |
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+ * 38 | PC6 |
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+ * 39 | PC7 |
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+ * 40 | PC8 |
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+ * 41 | PC9 |
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+ * 42 | PA19 |
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+ * 43 | PA20 |
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+ * 44 | PC19 |
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+ * 45 | PC18 |
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+ * 46 | PC17 |
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+ * 47 | PC16 |
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+ * 48 | PC15 |
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+ * 49 | PC14 |
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+ * 50 | PC13 |
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+ * 51 | PC12 |
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+ * 52 NPCS2 | PB21 |
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+ * 53 | PB14 |
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+ * 54 | PA16 | "A0"
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+ * 55 | PA24 | "A1"
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+ * 56 | PA23 | "A2"
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+ * 57 | PA22 | "A3"
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+ * 58 TIOB2 | PA6 | "A4"
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+ * 69 | PA4 | "A5"
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+ * 60 TIOB1 | PA3 | "A6"
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+ * 61 TIOA1 | PA2 | "A7"
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+ * 62 | PB17 | "A8"
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+ * 63 | PB18 | "A9"
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+ * 64 | PB19 | "A10"
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+ * 65 | PB20 | "A11"
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+ * 66 | PB15 | "DAC0"
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+ * 67 | PB16 | "DAC1"
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+ * 68 | PA1 | "CANRX"
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+ * 69 | PA0 | "CANTX"
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+ * 70 | PA17 | "SDA1"
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+ * 71 | PA18 | "SCL1"
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+ * 72 | PC30 | LED AMBER "RX"
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+ * 73 | PA21 | LED AMBER "TX"
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+ * 74 MISO | PA25 |
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+ * 75 MOSI | PA26 |
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+ * 76 SCLK | PA27 |
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+ * 77 NPCS0 | PA28 |
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+ * 78 NPCS3 | PB23 | unconnected!
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+ *
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+ * USB pin | PORT
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+ * ----------------+--------
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+ * ID | PB11
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+ * VBOF | PB10
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+ *
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+ */
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Bob-the-Kuhn
7 年之前