SAM4SD32 (SAM4S-EK2)
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pio.c File Reference

Parallel Input/Output (PIO) Controller driver for SAM. More...

#include "pio.h"

Go to the source code of this file.

Macros

#define FREQ_SLOW_CLOCK_EXT   32768
#define PIO_WPMR_WPKEY_PASSWD   PIO_WPMR_WPKEY(0x50494Fu)

Functions

void pio_capture_disable (Pio *p_pio)
 Disable PIO capture mode.
void pio_capture_disable_interrupt (Pio *p_pio, const uint32_t ul_mask)
 Disable a given interrupt source of PIO capture.
void pio_capture_enable (Pio *p_pio)
 Enable PIO capture mode.
void pio_capture_enable_interrupt (Pio *p_pio, const uint32_t ul_mask)
 Enable the given interrupt source of PIO capture.
uint32_t pio_capture_get_interrupt_mask (const Pio *p_pio)
 Read PIO interrupt mask of PIO capture.
uint32_t pio_capture_get_interrupt_status (const Pio *p_pio)
 Read PIO interrupt status of PIO capture.
Pdc * pio_capture_get_pdc_base (const Pio *p_pio)
 Get PDC registers base address.
uint32_t pio_capture_read (const Pio *p_pio, uint32_t *pul_data)
 Read from Capture Reception Holding Register.
void pio_capture_set_mode (Pio *p_pio, uint32_t ul_mode)
 Configure PIO capture mode.
void pio_clear (Pio *p_pio, const uint32_t ul_mask)
 Set a low output level on all the PIOs defined in ul_mask.
uint32_t pio_configure (Pio *p_pio, const pio_type_t ul_type, const uint32_t ul_mask, const uint32_t ul_attribute)
 Perform complete pin(s) configuration; general attributes and PIO init if necessary.
void pio_configure_interrupt (Pio *p_pio, const uint32_t ul_mask, const uint32_t ul_attr)
 Configure the given interrupt source.
uint32_t pio_configure_pin (uint32_t ul_pin, const uint32_t ul_flags)
 Perform complete pin(s) configuration; general attributes and PIO init if necessary.
uint32_t pio_configure_pin_group (Pio *p_pio, uint32_t ul_mask, const uint32_t ul_flags)
 Perform complete pin(s) configuration; general attributes and PIO init if necessary.
void pio_disable_interrupt (Pio *p_pio, const uint32_t ul_mask)
 Disable a given interrupt source, with no added side effects.
void pio_disable_output_write (Pio *p_pio, const uint32_t ul_mask)
 Disable PIO output write.
void pio_disable_pin_interrupt (uint32_t ul_pin)
 Disable interrupt for a GPIO pin.
void pio_enable_interrupt (Pio *p_pio, const uint32_t ul_mask)
 Enable the given interrupt source.
void pio_enable_output_write (Pio *p_pio, const uint32_t ul_mask)
 Enable PIO output write for synchronous data output.
void pio_enable_pin_interrupt (uint32_t ul_pin)
 Enable interrupt for a GPIO pin.
uint32_t pio_get (Pio *p_pio, const pio_type_t ul_type, const uint32_t ul_mask)
 Return 1 if one or more PIOs of the given Pin instance currently have a high level; otherwise returns 0.
uint32_t pio_get_interrupt_mask (const Pio *p_pio)
 Read PIO interrupt mask.
uint32_t pio_get_interrupt_status (const Pio *p_pio)
 Read and clear PIO interrupt status.
uint32_t pio_get_multi_driver_status (const Pio *p_pio)
 Get multi-driver status.
uint32_t pio_get_output_data_status (const Pio *p_pio, const uint32_t ul_mask)
 Return 1 if one or more PIOs of the given Pin are configured to output a high level (even if they are not output).
uint32_t pio_get_output_write_status (const Pio *p_pio)
 Read PIO output write status.
Piopio_get_pin_group (uint32_t ul_pin)
 Return GPIO port for a GPIO pin.
uint32_t pio_get_pin_group_id (uint32_t ul_pin)
 Return GPIO port peripheral ID for a GPIO pin.
uint32_t pio_get_pin_group_mask (uint32_t ul_pin)
 Return GPIO port pin mask for a GPIO pin.
uint32_t pio_get_pin_value (uint32_t ul_pin)
 Return the value of a pin.
uint32_t pio_get_schmitt_trigger (const Pio *p_pio)
 Get PIO pin schmitt trigger status.
uint32_t pio_get_writeprotect_status (const Pio *p_pio)
 Read write protect status.
void pio_pull_down (Pio *p_pio, const uint32_t ul_mask, const uint32_t ul_pull_down_enable)
 Configure PIO pin internal pull-down.
void pio_pull_up (Pio *p_pio, const uint32_t ul_mask, const uint32_t ul_pull_up_enable)
 Configure PIO internal pull-up.
void pio_set (Pio *p_pio, const uint32_t ul_mask)
 Set a high output level on all the PIOs defined in ul_mask.
void pio_set_additional_interrupt_mode (Pio *p_pio, const uint32_t ul_mask, const uint32_t ul_attribute)
 Set additional interrupt mode.
void pio_set_debounce_filter (Pio *p_pio, const uint32_t ul_mask, const uint32_t ul_cut_off)
 Configure Glitch or Debouncing filter for the specified input(s).
void pio_set_input (Pio *p_pio, const uint32_t ul_mask, const uint32_t ul_attribute)
 Configure one or more pin(s) or a PIO controller as inputs.
void pio_set_multi_driver (Pio *p_pio, const uint32_t ul_mask, const uint32_t ul_multi_driver_enable)
 Configure PIO pin multi-driver.
void pio_set_output (Pio *p_pio, const uint32_t ul_mask, const uint32_t ul_default_level, const uint32_t ul_multidrive_enable, const uint32_t ul_pull_up_enable)
 Configure one or more pin(s) of a PIO controller as outputs, with the given default value.
void pio_set_peripheral (Pio *p_pio, const pio_type_t ul_type, const uint32_t ul_mask)
 Configure IO of a PIO controller as being controlled by a specific peripheral.
void pio_set_pin_group_high (Pio *p_pio, uint32_t ul_mask)
 Drive a GPIO port to 1.
void pio_set_pin_group_low (Pio *p_pio, uint32_t ul_mask)
 Drive a GPIO port to 0.
void pio_set_pin_high (uint32_t ul_pin)
 Drive a GPIO pin to 1.
void pio_set_pin_low (uint32_t ul_pin)
 Drive a GPIO pin to 0.
void pio_set_schmitt_trigger (Pio *p_pio, const uint32_t ul_mask)
 Configure PIO pin schmitt trigger.
void pio_set_writeprotect (Pio *p_pio, const uint32_t ul_enable)
 Enable or disable write protect of PIO registers.
void pio_sync_output_write (Pio *p_pio, const uint32_t ul_mask)
 Synchronously write on output pins.
void pio_toggle_pin (uint32_t ul_pin)
 Toggle a GPIO pin.
void pio_toggle_pin_group (Pio *p_pio, uint32_t ul_mask)
 Toggle a GPIO group.

Variables

uint32_t pio_capture_enable_flag

Detailed Description

Parallel Input/Output (PIO) Controller driver for SAM.

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

\cond ASF_LICENSE

Definition in file pio.c.

Macro Definition Documentation

◆ PIO_WPMR_WPKEY_PASSWD

#define PIO_WPMR_WPKEY_PASSWD   PIO_WPMR_WPKEY(0x50494Fu)

Definition at line 40 of file pio.c.

Referenced by pio_set_writeprotect().