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подготовка к альфа-тестированию

cores/arduino/wiring_digital.c

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+/*
+  Copyright (c) 2011 Arduino.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library 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 Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include "Arduino.h"
+#include "pins_arduino.h"
+#include "mik32_hal_gpio.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void ErrorMsgHandler(const char * msg);
+
+// initialization
+void pinMode(uint32_t PinNumber, uint32_t PinMode)
+{
+  GPIO_InitTypeDef GPIO_InitStruct = {0};
+
+  // if pin number is greater than pin list size - return
+  if ((PinNumber>=pinCommonQty()))
+  {
+    ErrorMsgHandler("pinMode(): pin number exceeds the total number of pins");
+    return;
+  }
+
+  if (digitalPinHasPWM(PinNumber))
+    // if the pin can use PWM, disable PWM
+    analogWriteStop(PinNumber);
+
+  // adjusting pins
+  if (PinNumber == BTN_BUILTIN)   
+  {
+    // always set the button to input, otherwise the controller may burn out when pressed
+    GPIO_InitStruct.Pin = GPIO_PIN_6;
+    GPIO_InitStruct.Mode = HAL_GPIO_MODE_GPIO_INPUT;
+    GPIO_InitStruct.Pull = HAL_GPIO_PULL_NONE;
+    HAL_GPIO_Init(GPIO_2, &GPIO_InitStruct);
+  }
+  else  // other pins
+  {
+    // determine the port and the pin number in the port
+    GPIO_TypeDef *GPIO_addr = digitalPinToPort(PinNumber);
+    GPIO_InitStruct.Pin = digitalPinToBitMask(PinNumber);
+
+    // set up direction and pull up/down
+    switch (PinMode)
+    {
+      case INPUT: 
+        GPIO_InitStruct.Mode = HAL_GPIO_MODE_GPIO_INPUT;
+        GPIO_InitStruct.Pull = HAL_GPIO_PULL_NONE;
+        break;
+      case INPUT_PULLUP:
+        GPIO_InitStruct.Mode = HAL_GPIO_MODE_GPIO_INPUT;
+        GPIO_InitStruct.Pull = HAL_GPIO_PULL_UP;
+        break;
+      case OUTPUT:
+        GPIO_InitStruct.Mode = HAL_GPIO_MODE_GPIO_OUTPUT;
+        GPIO_InitStruct.Pull = HAL_GPIO_PULL_NONE;
+        break;
+    }
+
+    // init pin
+    HAL_GPIO_Init(GPIO_addr, &GPIO_InitStruct);
+
+    // if we use pin A5, we need to set SELA45 (1.15) to 1 to switch the output from A4 to A5
+    if (PinNumber == A5)   
+    {
+      GPIO_InitStruct.Pin = GPIO_PIN_15;
+      GPIO_InitStruct.Mode = HAL_GPIO_MODE_GPIO_OUTPUT;
+      GPIO_InitStruct.Pull = HAL_GPIO_PULL_NONE;
+      HAL_GPIO_Init(GPIO_1, &GPIO_InitStruct);
+      HAL_GPIO_WritePin(GPIO_1, GPIO_PIN_15, GPIO_PIN_HIGH);
+    }
+    else if(PinNumber == A4)
+    {
+      GPIO_InitStruct.Pin = GPIO_PIN_15;
+      GPIO_InitStruct.Mode = HAL_GPIO_MODE_GPIO_OUTPUT;
+      GPIO_InitStruct.Pull = HAL_GPIO_PULL_NONE;
+      HAL_GPIO_Init(GPIO_1, &GPIO_InitStruct);
+      HAL_GPIO_WritePin(GPIO_1, GPIO_PIN_15, GPIO_PIN_LOW);
+    }
+  }
+}
+
+// write pin
+void digitalWrite(uint32_t PinNumber, uint32_t Val)
+{
+  if ((PinNumber>=pinCommonQty()))
+  {
+    ErrorMsgHandler("digitalWrite(): pin number exceeds the total number of pins");
+    return;
+  }
+
+  if (digitalPinHasPWM(PinNumber))
+    // if the pin can use PWM, disable PWM
+    analogWriteStop(PinNumber);
+
+  // just in case let's move on to the hal library state terms 
+  GPIO_PinState pinState = (Val == HIGH) ? GPIO_PIN_HIGH : GPIO_PIN_LOW;
+
+  if (PinNumber != BTN_BUILTIN)  // don't write anything to the button
+    HAL_GPIO_WritePin(digitalPinToPort(PinNumber), digitalPinToBitMask(PinNumber), pinState);
+}
+
+// read pin
+int digitalRead(uint32_t PinNumber)
+{ 
+  if ((PinNumber>=pinCommonQty()))
+  {
+    ErrorMsgHandler("digitalRead(): pin number exceeds the total number of pins");
+    return -1;
+  }
+  if (digitalPinHasPWM(PinNumber))
+    // if the pin can use PWM, disable PWM
+    analogWriteStop(PinNumber);
+
+  GPIO_PinState pinState = HAL_GPIO_ReadPin(digitalPinToPort(PinNumber), digitalPinToBitMask(PinNumber));
+  int state = (pinState == GPIO_PIN_LOW) ? LOW : HIGH;
+  return state;
+}
+
+// toggle pin
+void digitalToggle(uint32_t PinNumber)
+{
+  if ((PinNumber>=pinCommonQty()))
+  {
+    ErrorMsgHandler("digitalToggle(): pin number exceeds the total number of pins");
+    return;
+  }
+  if (digitalPinHasPWM(PinNumber))
+    // if the pin can use PWM, disable PWM
+    analogWriteStop(PinNumber);
+    
+  if (PinNumber != BTN_BUILTIN)  // don't write anything to the button
+    HAL_GPIO_TogglePin(digitalPinToPort(PinNumber), digitalPinToBitMask(PinNumber));
+}
+
+#ifdef __cplusplus
+}
+#endif