sam0/applications/getting-started/main.c File Reference

Getting Started Application.

Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.

#include "asf.h"
#include "stdio_serial.h"
#include "conf_uart_serial.h"

Macros
#define	STRING_EOL   "\r"
#define	STRING_HEADER
#define	TC_COUNT_VALUE   55535

Functions
static void	configure_console (void)
	Configure UART console. More...
static void	configure_eic_callback (void)
	Configures and registers the External Interrupt callback function with the driver. More...
static void	configure_extint (void)
	Configures the External Interrupt Controller to detect changes in the board button state. More...
static void	configure_tc (void)
	Configures TC function with the driver. More...
static void	configure_tc_callbacks (void)
	Registers TC callback function with the driver. More...
static void	extint_callback (void)
	Callback function for the EXTINT driver, called when an external interrupt detection occurs. More...
int	main (void)
	getting-started Application entry point. More...
static void	tc_callback_to_counter (struct tc_module *const module_inst)
	TC Callback function. More...
static void	update_led_state (void)

Variables
static struct usart_module	cdc_uart_module
static struct tc_module	tc_instance

#define STRING_EOL   "\r"

#define STRING_HEADER

Value:

"-- Getting Started Example --\r\n" \
        "-- "BOARD_NAME" --\r\n" \
        "-- Compiled: "__DATE__" "__TIME__" --\r\n" \
        "-- Pressing and release button SW0 should make LED0 on and off --"STRING_EOL

Referenced by main().

#define TC_COUNT_VALUE   55535

Referenced by configure_tc(), and tc_callback_to_counter().

static void configure_console ( void  )

static

Configure UART console.

References usart_config::baudrate, cdc_uart_module, CONF_STDIO_BAUDRATE, CONF_STDIO_MUX_SETTING, CONF_STDIO_PINMUX_PAD0, CONF_STDIO_PINMUX_PAD1, CONF_STDIO_PINMUX_PAD2, CONF_STDIO_PINMUX_PAD3, CONF_STDIO_USART_MODULE, usart_config::mux_setting, usart_config::pinmux_pad0, usart_config::pinmux_pad1, usart_config::pinmux_pad2, usart_config::pinmux_pad3, usart_enable(), and usart_get_config_defaults().

Referenced by main().

static void configure_eic_callback ( void  )

static

Configures and registers the External Interrupt callback function with the driver.

References extint_callback(), EXTINT_CALLBACK_TYPE_DETECT, extint_chan_enable_callback(), and extint_register_callback().

Referenced by main().

static void configure_extint ( void  )

static

Configures the External Interrupt Controller to detect changes in the board button state.

References extint_chan_conf::detection_criteria, extint_chan_get_config_defaults(), extint_chan_set_config(), EXTINT_DETECT_BOTH, extint_chan_conf::filter_input_signal, extint_chan_conf::gpio_pin, and extint_chan_conf::gpio_pin_mux.

Referenced by main().

static void configure_tc ( void  )

static

Configures TC function with the driver.

References tc_config::counter_16_bit, tc_config::counter_size, TC_COUNT_VALUE, TC_COUNTER_SIZE_16BIT, tc_enable(), tc_get_config_defaults(), tc_init(), tc_instance, and tc_16bit_config::value.

static void configure_tc_callbacks ( void  )

static

Registers TC callback function with the driver.

References TC_CALLBACK_OVERFLOW, tc_callback_to_counter(), tc_enable_callback(), tc_instance, and tc_register_callback().

static void extint_callback ( void  )

static

Callback function for the EXTINT driver, called when an external interrupt detection occurs.

References update_led_state().

Referenced by configure_eic_callback().

int main

(

void

)

getting-started Application entry point.

Returns

Unused (ANSI-C compatibility).

References configure_console(), configure_eic_callback(), configure_extint(), configure_tc(), configure_tc_callbacks(), delay_init(), delay_ms, delay_s, port_config::direction, i, port_get_config_defaults(), PORT_PIN_DIR_OUTPUT, port_pin_set_config(), port_pin_set_output_level(), port_pin_toggle_output_level(), STRING_HEADER, system_init(), and system_interrupt_enable_global().

static void tc_callback_to_counter ( struct tc_module *const  module_inst )

static

TC Callback function.

References count, TC_COUNT_VALUE, and tc_set_count_value().

Referenced by configure_tc_callbacks().

static void update_led_state ( void  )

static

References port_pin_get_input_level(), and port_pin_set_output_level().

Referenced by extint_callback().

struct usart_module cdc_uart_module

static

struct tc_module tc_instance

static