atmel_start_config.atstart

@@ -108,14 +108,7 @@ drivers:
       eic_arch_wakeupen7: false
       eic_arch_wakeupen8: false
       eic_arch_wakeupen9: false
-    optional_signals:
-    - identifier: EXTERNAL_IRQ_0:EXTINT/0
-      pad: PA00
-      mode: Enabled
-      configuration: null
-      definition: Atmel:SAMD21_Drivers:0.0.1::SAMD21E17A-MF::optional_signal_definition::EIC.EXTINT.0
-      name: EIC/EXTINT/0
-      label: EXTINT/0
+    optional_signals: []
     variant: null
     clocks:
       domain_group:
@@ -716,12 +709,6 @@ drivers:
     clocks:
       domain_group: null
 pads:
-  PA00:
-    name: PA00
-    definition: Atmel:SAMD21_Drivers:0.0.1::SAMD21E17A-MF::pad::PA00
-    mode: Digital input
-    user_label: PA00
-    configuration: null
   OUT_LED_TX:
     name: PA06
     definition: Atmel:SAMD21_Drivers:0.0.1::SAMD21E17A-MF::pad::PA06

atmel_start_pins.h

@@ -21,7 +21,6 @@
 #define GPIO_PIN_FUNCTION_G 6
 #define GPIO_PIN_FUNCTION_H 7
 
-#define PA00 GPIO(GPIO_PORTA, 0)
 #define OUT_LED_TX GPIO(GPIO_PORTA, 6)
 #define OUT_XBEE_REMOTE_RESET GPIO(GPIO_PORTA, 7)
 #define IN_UART_TX GPIO(GPIO_PORTA, 8)

config/hpl_eic_config.h

@@ -682,10 +682,6 @@
 #endif
 // </e>
 
-#ifndef CONFIG_EIC_EXTINT_MAP
-#define CONFIG_EIC_EXTINT_MAP {0, PIN_PA00}, {0, 32},
-#endif
-
 // <<< end of configuration section >>>
 
 #endif // HPL_EIC_CONFIG_H

driver_init.c

@@ -25,19 +25,6 @@ void EXTERNAL_IRQ_0_init(void)
 {
 	_gclk_enable_channel(EIC_GCLK_ID, CONF_GCLK_EIC_SRC);
 
-	// Set pin direction to input
-	gpio_set_pin_direction(PA00, GPIO_DIRECTION_IN);
-
-	gpio_set_pin_pull_mode(PA00,
-	                       // <y> Pull configuration
-	                       // <id> pad_pull_config
-	                       // <GPIO_PULL_OFF"> Off
-	                       // <GPIO_PULL_UP"> Pull-up
-	                       // <GPIO_PULL_DOWN"> Pull-down
-	                       GPIO_PULL_OFF);
-
-	gpio_set_pin_function(PA00, PINMUX_PA00A_EIC_EXTINT0);
-
 	ext_irq_init();
 }
 

examples/driver_examples.c

@@ -10,17 +10,11 @@
 #include "driver_init.h"
 #include "utils.h"
 
-static void button_on_PA00_pressed(void)
-{
-}
-
 /**
  * Example of using EXTERNAL_IRQ_0
  */
 void EXTERNAL_IRQ_0_example(void)
 {
-
-	ext_irq_register(PIN_PA00, button_on_PA00_pressed);
 }
 
 /**

hal/src/hal_ext_irq.c

@@ -33,7 +33,7 @@
 
 #include "hal_ext_irq.h"
 
-#define EXT_IRQ_AMOUNT 2
+#define EXT_IRQ_AMOUNT 0
 
 /**
  * \brief Driver version

hpl/eic/hpl_eic.c

@@ -69,7 +69,7 @@ static int ffs(int v)
 	}
 #endif
 
-#define EXT_IRQ_AMOUNT 2
+#define EXT_IRQ_AMOUNT 0
 
 /**
  * \brief EXTINTx and pin number map

main.cpp

@@ -35,7 +35,6 @@ int main()
   App::Logging::setup();
 
   radio::HwInstance radio_hw;
-  SKULLC_LOG_DEBUG("Begin.");
 
 	/* Replace with your application code */
 	while (true)
@@ -52,26 +51,6 @@ int main()
 
     SKULLC_LOG_INFO("Status: %d", radio_status);
 
-    static int transitioned = 0;
-    if (radio_status == 0x08 && transitioned == 0)
-    {
-      SKULLC_LOG_DEBUG("Transitioning...");
-      radio_hw.set_current_state(radio::HwInstance::States::PLL_ON);
-      transitioned = 1;
-    }
-    else if (radio_status == 0x09 && transitioned == 1)
-    {
-      SKULLC_LOG_DEBUG("Transitioning 2...");
-      radio_hw.set_current_state(radio::HwInstance::States::RX_ON);
-      transitioned = 2;
-    }
-    else if (radio_status == 0x09 && transitioned == 1)
-    {
-      SKULLC_LOG_DEBUG("Transitioning 2...");
-      radio_hw.set_current_state(radio::HwInstance::States::RX_ON);
-      transitioned = 2;
-    }
-
     delay_ms(1000);
 	}
 }

radio/include/radio_hw_instance.hpp

@@ -14,22 +14,6 @@ namespace radio
 
 struct HwInstance
 {
-  enum class States : std::uint8_t
-  {
-    P_ON = 0,
-    BUSY_RX,
-    BUSY_TX,
-    RX_ON,
-    TRX_OFF,
-    PLL_ON,
-    SLEEP,
-    PREP_DEEP_SLEEP,
-    BUSY_RX_AACK,
-    BUSY_TX_ARET,
-    RX_AACK_ON,
-    TX_ARET_ON
-  };
-
   static HwInstance* instance();
 
   HwInstance();
@@ -42,13 +26,9 @@ struct HwInstance
 
   uint8_t register_read(const Registers& address);
   void register_write(const Registers& address, const uint8_t value);
-
-  States current_state() const;
-  bool set_current_state(const States& new_state);
 private:
   spi_m_sync_descriptor* m_spi = nullptr;
   io_descriptor* m_spi_io = nullptr;
-  States m_current_state = States::P_ON;
 
   void m_wait_transition_complete();
 };

radio/src/radio_hw_instance.cpp

@@ -7,13 +7,11 @@
 #include "radio_hardware_instance.h"
 #include "radio_gpio.h"
 #include "radio_spi.h"
-#include "utility_logging.hpp"
 
 #include <hal_delay.h>
 #include <hal_ext_irq.h>
 #include <utility_assert.hpp>
 #include <utility_staticpointer.hpp>
-#include <optional>
 
 namespace
 {
@@ -55,7 +53,6 @@ HwInstance::HwInstance()
 
   ext_irq_enable(IN_RADIO_IRQ);
   ext_irq_register(IN_RADIO_IRQ, _irq_handler);
-  ext_irq_register(0, _irq_handler);
 
   gpio_set_pin_level(OUT_RADIO_RST, true);
   delay_ms(10);
@@ -75,12 +72,13 @@ HwInstance::HwInstance()
   // clear interrupts.
   register_read(Registers::IRQ_STATUS);
 
-  set_current_state(States::TRX_OFF);
+  m_wait_transition_complete();
+
+  register_write(Registers::TRX_STATE, 0x08);
 }
 
 void HwInstance::irq_handler()
 {
-  SKULLC_LOG_DEBUG("IRQ set.");
 }
 
 uint8_t HwInstance::register_read(const Registers& address)
@@ -113,78 +111,6 @@ void HwInstance::register_write(const Registers& address, const uint8_t value)
   gpio_set_pin_level(OUT_RADIO_CS, true);
 }
 
-bool HwInstance::set_current_state(const States& new_state)
-{
-  if (new_state == m_current_state)
-    return true;
-
-  m_wait_transition_complete();
-  bool can_transition = false;
-  std::optional<std::uint8_t> trx_state_value = std::nullopt;
-
-  switch (m_current_state)
-  {
-  case States::P_ON:
-    if (new_state == States::TRX_OFF)
-    {
-      can_transition = true;
-      trx_state_value = 0x08;
-    }
-    break;
-  case States::TRX_OFF:
-    if (new_state == States::RX_ON)
-    {
-      can_transition = true;
-      trx_state_value = 0x06;
-    }
-    else if (new_state == States::PLL_ON)
-    {
-      can_transition = true;
-      trx_state_value = 0x09;
-    }
-    break;
-  case States::RX_ON:
-    if (new_state == States::PLL_ON)
-    {
-      can_transition = true;
-      trx_state_value = 0x09;
-    }
-    else if (new_state == States::TRX_OFF)
-    {
-      can_transition = true;
-      trx_state_value = 0x08;
-    }
-    break;
-  case States::PLL_ON:
-    if (new_state == States::RX_ON)
-    {
-      can_transition = true;
-      trx_state_value = 0x06;
-    }
-    else if (new_state == States::TRX_OFF)
-    {
-      can_transition = true;
-      trx_state_value = 0x08;
-    }
-    break;
-  default:
-    SKULLC_ASSERT_DEBUG(false);
-    return false;
-  }
-
-  if (can_transition)
-  {
-    register_write(Registers::TRX_STATE, *trx_state_value);
-    m_wait_transition_complete();
-    m_current_state = new_state;
-    return true;
-  }
-  else
-  {
-    return false;
-  }
-}
-
 void HwInstance::m_wait_transition_complete()
 {
   while (true)