afec_example2.c File Reference

AFEC enhanced resolution mode example for SAM.

Copyright (c) 2013-2018 Microchip Technology Inc. and its subsidiaries.

#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "asf.h"

Macros
#define	MAX_DIGITAL_12_BIT   (4095UL)
	The maximal digital value. More...
#define	MENU_HEADER
#define	STRING_EOL   "\r"
#define	STRING_HEADER
#define	VOLT_REF   (3300)
	Reference voltage for AFEC in mv. More...

Functions
static void	afec_data_ready (void)
	AFEC interrupt callback function. More...
static void	configure_console (void)
	Configure UART console. More...
static void	display_menu (void)
	Display main menu. More...
int	main (void)
	Application entry point. More...
static void	set_afec_resolution (void)
	Set AFEC resolution mode. More...

Variables
struct {
bool   is_done
uint32_t   value
}	g_afec_sample_data
	AFEC sample data. More...
static uint32_t	g_max_digital
	The maximal digital value. More...

#define MAX_DIGITAL_12_BIT   (4095UL)

The maximal digital value.

Referenced by main(), and set_afec_resolution().

#define MENU_HEADER

Value:

"\n\r-- press a key to change the resolution mode--\n\r" \
        "-- n: Normal Resolution Mode--\n\r" \
        "-- e: Enhanced Resolution Mode--\n\r" \
        "-- q: Quit Configuration--\n\r"

Referenced by display_menu().

#define STRING_EOL   "\r"

#define STRING_HEADER

Value:

"-- AFEC Enhanced Resolution Example --\r\n" \
        "-- "BOARD_NAME" --\r\n" \
        "-- Compiled: "__DATE__" "__TIME__" --"STRING_EOL

Referenced by main().

#define VOLT_REF   (3300)

Reference voltage for AFEC in mv.

Referenced by main().

static void afec_data_ready ( void  )

static

AFEC interrupt callback function.

References afec_get_latest_value(), and g_afec_sample_data.

Referenced by main().

static void configure_console ( void  )

static

Configure UART console.

References uart_rs232_options::baudrate, stdio_serial_init(), and sysclk_enable_peripheral_clock().

Referenced by main().

static void display_menu ( void  )

static

Display main menu.

References MENU_HEADER.

Referenced by main(), and set_afec_resolution().

int main

(

void

)

Application entry point.

Returns

Unused (ANSI-C compatibility).

References afec_ch_get_config_defaults(), afec_ch_set_config(), afec_channel_enable(), afec_channel_set_analog_offset(), afec_data_ready(), afec_disable_interrupt(), afec_enable(), afec_enable_interrupt(), afec_get_config_defaults(), afec_get_interrupt_status(), afec_init(), afec_set_callback(), afec_set_trigger(), afec_start_software_conversion(), AFEC_TRIG_SW, board_init(), configure_console(), delay_ms, display_menu(), g_afec_sample_data, g_max_digital, MAX_DIGITAL_12_BIT, set_afec_resolution(), STRING_HEADER, sysclk_init(), uart_read(), and VOLT_REF.

static void set_afec_resolution ( void  )

static

Set AFEC resolution mode.

References AFEC_12_BITS, AFEC_16_BITS, afec_set_resolution(), display_menu(), g_max_digital, MAX_DIGITAL_12_BIT, and uart_read().

Referenced by main().

struct { ... } g_afec_sample_data

AFEC sample data.

Referenced by afec_data_ready(), and main().

uint32_t g_max_digital

static

The maximal digital value.

Referenced by main(), and set_afec_resolution().

bool is_done

uint32_t value

Referenced by get_input_value(), hsmci_write_word(), http_decodeUrl(), ili9325_read_gram(), ili9325_read_ram(), ili93xx_read_gram(), ili93xx_read_ram(), ili93xx_read_register(), ili93xx_read_register_byte(), ISR(), phyReadRegister(), run_test_control_setting(), SDMMC_UNSTUFF_BITS(), spi_write(), tal_pib_get(), udi_cdc_ctrl_state_notify(), udi_cdc_multi_putc(), and usart_handler().