Merge pull request #12 from jasonyang-ee:dev

Add: GPIO class

Application/Inc/GPIO.hpp

@@ -0,0 +1,38 @@
+#ifndef APPLICATION_INC_GPIO
+#define APPLICATION_INC_GPIO
+
+#include "main.h"
+
+/**
+ * @brief Construct a new Switch:: Switch object
+ *
+ * @param freq Provide scheduler running frequency. 100Hz is good
+ * @warning setPort(GPIOX, GPIO_PIN_X) is required to run.
+ */
+class CustomGPIO {
+   public:
+    CustomGPIO();
+    CustomGPIO(uint16_t);
+    virtual ~CustomGPIO();
+    void setPort(GPIO_TypeDef *, uint16_t);
+
+	void on();
+	void off();
+	void toggle();
+
+    bool getStatus();
+
+    void schedulerLowActive();
+    void schedulerHighActive();
+
+   private:
+    GPIO_TypeDef *m_port;
+    uint16_t m_pin;
+
+    uint16_t m_roll_period{100};
+    uint16_t m_roll_timer{0};
+    bool m_stable{true};
+    bool m_pressed{false};
+};
+
+#endif /* APPLICATION_INC_GPIO */

Application/Src/GPIO.cpp

@@ -0,0 +1,54 @@
+#include "GPIO.hpp"
+
+CustomGPIO::CustomGPIO() {}
+CustomGPIO::CustomGPIO(uint16_t value) { m_roll_period = value; }
+CustomGPIO::~CustomGPIO() {}
+
+void CustomGPIO::setPort(GPIO_TypeDef *port, uint16_t pin) {
+    m_port = port;
+    m_pin = pin;
+}
+
+void CustomGPIO::on() { HAL_GPIO_WritePin(m_port, m_pin, GPIO_PIN_SET); }
+
+void CustomGPIO::off() { HAL_GPIO_WritePin(m_port, m_pin, GPIO_PIN_RESET); }
+
+void CustomGPIO::toggle() { HAL_GPIO_TogglePin(m_port, m_pin); }
+
+void CustomGPIO::schedulerLowActive() {
+    if (m_stable) {
+        if (!HAL_GPIO_ReadPin(m_port, m_pin))
+            m_stable = false;
+        else
+            m_roll_timer = 0;
+    }
+
+    else if (HAL_GPIO_ReadPin(m_port, m_pin) || ++m_roll_timer > m_roll_period) {
+        m_stable = true;
+        m_pressed = true;
+        m_roll_timer = m_roll_period * 0.8;
+    }
+}
+
+void CustomGPIO::schedulerHighActive() {
+    if (m_stable) {
+        if (HAL_GPIO_ReadPin(m_port, m_pin))
+            m_stable = false;
+        else
+            m_roll_timer = 0;
+    }
+
+    else if (!HAL_GPIO_ReadPin(m_port, m_pin) || ++m_roll_timer > m_roll_period) {
+        m_stable = true;
+        m_pressed = true;
+        m_roll_timer = m_roll_period * 0.8;
+    }
+}
+
+bool CustomGPIO::getStatus() {
+    if (m_pressed) {
+        m_pressed = !m_pressed;
+        return true;
+    } else
+        return false;
+}

cmake/SourceList.cmake

@@ -4,6 +4,7 @@ ${PROJ_PATH}/Application/Src/ADC.cpp
 ${PROJ_PATH}/Application/Src/CLI.cpp
 ${PROJ_PATH}/Application/Src/DAC.cpp
 ${PROJ_PATH}/Application/Src/Flash_STM32G431KB.cpp
+${PROJ_PATH}/Application/Src/GPIO.cpp
 ${PROJ_PATH}/Application/Src/LED.cpp
 ${PROJ_PATH}/Application/Src/main.cpp
 ${PROJ_PATH}/Application/Src/SerialCOM.cpp