Добавлена библиотека IRremote

1. Инициализация hal библиотек, включение тактирования портов, установка вектора прерываний теперь производится в crt0.S
2. Добавлена библиотека IRremote. Для работы использует прерывание таймера timer16_0
Co-authored-by: KLASSENTS <klassen@elron.tech>
Co-committed-by: KLASSENTS <klassen@elron.tech>

cores/arduino/board.cpp

@@ -4,8 +4,8 @@
 #include "Arduino.h"
 
 // --------------------- init --------------------- // 
-// called before setup()
-void pre_init(void)
+// called from crt0.S before constructors initialization
+extern "C" void SystemInit(void)
 {
     // set irq vector to ram region
     write_csr(mtvec, 0x02000000);

cores/arduino/board.h

@@ -5,8 +5,7 @@ extern volatile bool use_error_messages;
 #define DISABLE_ERROR_MESSAGES()    (use_error_messages = false)
 #define ENABLE_ERROR_MESSAGES()     (use_error_messages = true)
 
-// functions for init called before and after setup()
-void pre_init(void) ;
+// function for init called after setup()
 void post_init(void);
 
 #endif /* _BOARD_H_ */

cores/arduino/main.cpp

@@ -4,7 +4,6 @@
 
 int main()
 {
-    pre_init();
     setup();
     post_init();
 

cores/arduino/trap_handler.c

@@ -13,6 +13,10 @@ void __attribute__((weak)) servo_interrupt_handler(void)
 {
     // dummy function for case when servo library is not in use
 }
+void __attribute__((weak)) IRremote_interrupt_handler(void)
+{
+    // dummy function for case when IRremote library is not in use
+}
 
 void __attribute__((weak)) ISR(void)
 {
@@ -46,6 +50,10 @@ void __attribute__((noinline, section(".ram_text"), optimize("O3"))) trap_handle
     if (EPIC_CHECK_GPIO_IRQ())
         gpio_interrupt_handler();
 
+    // IRremote timer interrupt
+    if (EPIC_CHECK_TIMER16_0())
+        IRremote_interrupt_handler();
+
     // tone timer interrupt
     if (EPIC_CHECK_TIMER16_1())
         tone_interrupt_handler();

cores/arduino/wiring_LL.h

@@ -5,6 +5,7 @@
 #include "mik32_hal_gpio.h"
 #include "mik32_hal_scr1_timer.h"
 #include "mik32_hal_timer16.h"
+#include "pad_config.h"
 
 // ----------------- COMMON ----------------- //
 // convert pin mask from HAL_PinsTypeDef to pin number
@@ -32,6 +33,7 @@
 #define TIM16_DISABLE_INT_BY_MASK(htim16,intMask) (htim16.Instance->IER &= ~(intMask))
 
 // ----------------- EPIC ----------------- //
+#define EPIC_LEVEL_SET_BY_MASK(mask)              (EPIC->MASK_LEVEL_SET |= mask)
 #define EPIC_LEVEL_CLEAR_BY_MASK(mask)            (EPIC->MASK_LEVEL_CLEAR |= mask)
 #define EPIC_CLEAR_ALL()                          (EPIC->CLEAR = 0xFFFFFFFF)
 
@@ -60,8 +62,6 @@
 // return config of pin with pinNumber(0...16) in portReg (config, pupd, ds for ports 0...2)
 #define PIN_GET_PAD_CONFIG(portReg, pinNumber)          ((PAD_CONFIG->portReg  >> (pinNumber<<1)) & 0b11)
 #define PIN_SET_PAD_CONFIG(portReg, pinNumber, value)   (PAD_CONFIG->portReg = (PAD_CONFIG->portReg & (~PAD_CONFIG_PIN_M(pinNumber))) \
-                                                        | PAD_CONFIG_PIN(pinNumber, value))
-
-  
+                                                        | PAD_CONFIG_PIN(pinNumber, value))  
 
 #endif /* _WIRING_LL_H_ */

cores/arduino/wiring_analog.c

@@ -86,7 +86,6 @@ uint32_t analogRead(uint32_t PinNumber)
 #define PWM_RESOLUTION_DEFAULT    8
 #define WRITE_VAL_MAX_DEFAULT     ((1<<PWM_RESOLUTION_DEFAULT) - 1)
 #define PWM_TOP_VAL_DEFAULT       32000   // corresponds 1000 Hz
-#define PWM_FREQUENCY_MAX         1000000 // Hz
 
 static TIMER32_HandleTypeDef htimer32;
 static TIMER32_CHANNEL_HandleTypeDef htimer32_channel;

cores/arduino/wiring_digital.c

@@ -19,6 +19,7 @@
 #include "Arduino.h"
 #include "pins_arduino.h"
 #include "mik32_hal_gpio.h"
+#include "wiring_LL.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -66,6 +67,26 @@ void pinMode(uint32_t PinNumber, uint32_t PinMode)
   additionalPinsInit(PinNumber);
 }
 
+void fastPinMode(uint32_t PinNumber, uint32_t PinMode)
+{
+  GPIO_TypeDef* port = digitalPinToPort(PinNumber);
+  HAL_PinsTypeDef pinMask = digitalPinToBitMask(PinNumber);
+  // set direction
+  if (PinMode == OUTPUT)
+    GPIO_OUTPUT_MODE_PIN(port, pinMask);
+  else
+    GPIO_INPUT_MODE_PIN(port, pinMask);
+  
+  // set pullup
+  if (PinMode == INPUT_PULLUP)
+  {
+    uint8_t pos = PIN_MASK_TO_PIN_NUMBER(pinMask);
+    if      (port == GPIO_0)  PIN_SET_PAD_CONFIG(PORT_0_PUPD, pos, HAL_GPIO_PULL_UP);
+    else if (port == GPIO_1)  PIN_SET_PAD_CONFIG(PORT_1_PUPD, pos, HAL_GPIO_PULL_UP);
+    else                      PIN_SET_PAD_CONFIG(PORT_2_PUPD, pos, HAL_GPIO_PULL_UP);
+  }
+}
+
 // write pin
 void digitalWrite(uint32_t PinNumber, uint32_t Val)
 {

cores/arduino/wiring_digital.h

@@ -26,26 +26,35 @@ extern "C" {
 /**
  * \brief Configures the specified pin to behave either as an input or an output.
  *
- * \param dwPin The number of the pin whose mode you wish to set
- * \param dwMode Either INPUT, INPUT_PULLUP or OUTPUT
+ * \param PinNumber The number of the pin whose mode you wish to set
+ * \param PinMode Either INPUT, INPUT_PULLUP or OUTPUT
  */
 void pinMode(uint32_t PinNumber, uint32_t PinMode);
 
+/**
+ * \brief Configures the specified pin to behave either as an input or an output
+ * using quick macros and without calling checks
+ *
+ * \param PinNumber The number of the pin whose mode you wish to set
+ * \param PinMode Either INPUT, INPUT_PULLUP or OUTPUT
+ */
+void fastPinMode(uint32_t PinNumber, uint32_t PinMode);
+
 /**
  * \brief Write a HIGH or a LOW value to a digital pin.
  *
  * If the pin has been configured as an OUTPUT with pinMode(), its voltage will be set to the
  * corresponding value: 3.3V for HIGH, 0V (ground) for LOW.
  *
- * \param dwPin the pin number
- * \param dwVal HIGH or LOW
+ * \param PinNumber the pin number
+ * \param PinMode HIGH or LOW
  */
 void digitalWrite(uint32_t PinNumber, uint32_t Val);
 
 /**
  * \brief Reads the value from a specified digital pin, either HIGH or LOW.
  *
- * \param ulPin The number of the digital pin you want to read (int)
+ * \param PinNumber The number of the digital pin you want to read (int)
  *
  * \return HIGH or LOW
  */
@@ -54,7 +63,7 @@ int digitalRead(uint32_t PinNumber);
 /**
  * \brief Toggle the value from a specified digital pin.
  *
- * \param ulPin The number of the digital pin you want to toggle (int)
+ * \param PinNumber The number of the digital pin you want to toggle (int)
  */
 void digitalToggle(uint32_t PinNumber);