pio_capture_example.c File Reference

PIO Capture Example.

Copyright (c) 2011-2018 Microchip Technology Inc. and its subsidiaries.

#include <asf.h>
#include "pio_handler.h"

Macros
#define	PIO_CAPTURE_CCLK_IDX   PIO_PA23_IDX
	Configure the PIO capture pins that send out data simulating as a sensor. More...
#define	PIO_CAPTURE_CONTROL_PIN_MSK   ((1 << 15) | (1 << 16) | (1 << 23))
#define	PIO_CAPTURE_DATA_PINS_MASK   (0x000000FF)
#define	PIO_CAPTURE_DATA_POS   (0)
	Data offset position. More...
#define	PIO_CAPTURE_EN1_IDX   PIO_PA15_IDX
#define	PIO_CAPTURE_EN2_IDX   PIO_PA16_IDX
#define	PIO_CAPTURE_OUTPUT_PIN_FLAGS   (PIO_OUTPUT_0 | PIO_DEFAULT)
#define	PIO_IRQ_PRI   (4)
	PIOA interrupt priority. More...
#define	SIZE_BUFF_RECEPT   (64)
	Buffer size. More...
#define	STRING_EOL   "\r"
#define	STRING_HEADER

Functions
static void	capture_handler (Pio *p_pio)
	Handler for capture function interrupt. More...
static void	configure_console (void)
	Configure UART for debug message output. More...
int	main (void)
	pio_capture Application entry point. More...

Variables
volatile uint8_t	g_uc_cbk_received = 0
	Test if a callback is received. More...
Pdc *	p_pdc
	Pointer to PDC register base. More...
pdc_packet_t	packet_t
	PDC data packet. More...
uint8_t	pio_rx_buffer [SIZE_BUFF_RECEPT]
	PIO receive buffer. More...

#define PIO_CAPTURE_CCLK_IDX   PIO_PA23_IDX

Configure the PIO capture pins that send out data simulating as a sensor.

Referenced by main().

#define PIO_CAPTURE_CONTROL_PIN_MSK   ((1 << 15) | (1 << 16) | (1 << 23))

Referenced by main().

#define PIO_CAPTURE_DATA_PINS_MASK   (0x000000FF)

Referenced by main().

#define PIO_CAPTURE_DATA_POS   (0)

Data offset position.

Referenced by main().

#define PIO_CAPTURE_EN1_IDX   PIO_PA15_IDX

Referenced by main().

#define PIO_CAPTURE_EN2_IDX   PIO_PA16_IDX

Referenced by main().

#define PIO_CAPTURE_OUTPUT_PIN_FLAGS   (PIO_OUTPUT_0 | PIO_DEFAULT)

Referenced by main().

#define PIO_IRQ_PRI   (4)

PIOA interrupt priority.

Referenced by main().

#define SIZE_BUFF_RECEPT   (64)

Buffer size.

Referenced by capture_handler(), and main().

#define STRING_EOL   "\r"

#define STRING_HEADER

Value:

"-- PIO Parallel Capture example --\r\n" \
        "-- "BOARD_NAME" --\r\n" \
        "-- Compiled: "__DATE__" "__TIME__" --"STRING_EOL

Referenced by main().

static void capture_handler ( Pio *  p_pio )

static

Handler for capture function interrupt.

References g_uc_cbk_received, p_pdc, pdc_disable_transfer(), pio_rx_buffer, and SIZE_BUFF_RECEPT.

Referenced by main().

static void configure_console ( void  )

static

Configure UART for debug message output.

References uart_rs232_options::baudrate, CONF_UART, CONF_UART_BAUDRATE, CONF_UART_PARITY, stdio_serial_init(), and sysclk_enable_peripheral_clock().

Referenced by main().

int main

(

void

)

pio_capture Application entry point.

Returns

Unused (ANSI-C compatibility).

References board_init(), capture_handler(), configure_console(), delay_us, g_uc_cbk_received, NULL, p_pdc, pdc_enable_transfer(), pdc_rx_init(), PIO_CAPTURE_CCLK_IDX, PIO_CAPTURE_CONTROL_PIN_MSK, PIO_CAPTURE_DATA_PINS_MASK, PIO_CAPTURE_DATA_POS, PIO_CAPTURE_EN1_IDX, PIO_CAPTURE_EN2_IDX, PIO_CAPTURE_OUTPUT_PIN_FLAGS, pio_configure_pin_group(), pio_disable_interrupt(), pio_enable_output_write(), PIO_IRQ_PRI, pio_rx_buffer, pio_set_pin_high(), pio_set_pin_low(), pio_sync_output_write(), pmc_enable_periph_clk(), SIZE_BUFF_RECEPT, STRING_HEADER, sysclk_get_cpu_hz(), sysclk_init(), uart_read(), pdc_packet::ul_addr, and pdc_packet::ul_size.

volatile uint8_t g_uc_cbk_received = 0

Test if a callback is received.

Referenced by capture_handler(), and main().

Pdc* p_pdc

Pointer to PDC register base.

Referenced by capture_handler(), and main().

pdc_packet_t packet_t

PDC data packet.

uint8_t pio_rx_buffer[SIZE_BUFF_RECEPT]

PIO receive buffer.

Referenced by capture_handler(), and main().