Parallel Input/Output (PIO) Controller driver for SAM. More...
#include "pio.h"
Include dependency graph for pio.c:
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_clear (Pio *p_pio, const uint32_t ul_mask) |
| Set a low output level on all the PIOs defined in ul_mask. This has no immediate effects on PIOs that are not output, but the PIO controller will save the value if they are changed to outputs. More... | |
| 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. More... | |
| void | pio_configure_interrupt (Pio *p_pio, const uint32_t ul_mask, const uint32_t ul_attr) |
| Configure the given interrupt source. Interrupt can be configured to trigger on rising edge, falling edge, high level, low level or simply on level change. More... | |
| 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. More... | |
| 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. More... | |
| void | pio_disable_interrupt (Pio *p_pio, const uint32_t ul_mask) |
| Disable a given interrupt source, with no added side effects. More... | |
| void | pio_disable_output_write (Pio *p_pio, const uint32_t ul_mask) |
| Disable PIO output write. More... | |
| void | pio_disable_pin_interrupt (uint32_t ul_pin) |
| Disable interrupt for a GPIO pin. More... | |
| void | pio_enable_interrupt (Pio *p_pio, const uint32_t ul_mask) |
| Enable the given interrupt source. The PIO must be configured as an NVIC interrupt source as well. More... | |
| void | pio_enable_output_write (Pio *p_pio, const uint32_t ul_mask) |
| Enable PIO output write for synchronous data output. More... | |
| void | pio_enable_pin_interrupt (uint32_t ul_pin) |
| Enable interrupt for a GPIO pin. More... | |
| 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. This method returns the actual value that is being read on the pin. To return the supposed output value of a pin, use pio_get_output_data_status() instead. More... | |
| uint32_t | pio_get_interrupt_mask (const Pio *p_pio) |
| Read PIO interrupt mask. More... | |
| uint32_t | pio_get_interrupt_status (const Pio *p_pio) |
| Read and clear PIO interrupt status. More... | |
| uint32_t | pio_get_multi_driver_status (const Pio *p_pio) |
| Get multi-driver status. More... | |
| 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). To get the actual value of the pin, use PIO_Get() instead. More... | |
| uint32_t | pio_get_output_write_status (const Pio *p_pio) |
| Read PIO output write status. More... | |
| Pio * | pio_get_pin_group (uint32_t ul_pin) |
| Return GPIO port for a GPIO pin. More... | |
| uint32_t | pio_get_pin_group_id (uint32_t ul_pin) |
| Return GPIO port peripheral ID for a GPIO pin. More... | |
| uint32_t | pio_get_pin_group_mask (uint32_t ul_pin) |
| Return GPIO port pin mask for a GPIO pin. More... | |
| uint32_t | pio_get_pin_value (uint32_t ul_pin) |
| Return the value of a pin. More... | |
| uint32_t | pio_get_writeprotect_status (const Pio *p_pio) |
| Read write protect status. More... | |
| void | pio_pull_up (Pio *p_pio, const uint32_t ul_mask, const uint32_t ul_pull_up_enable) |
| Configure PIO internal pull-up. More... | |
| void | pio_set (Pio *p_pio, const uint32_t ul_mask) |
| Set a high output level on all the PIOs defined in ul_mask. This has no immediate effects on PIOs that are not output, but the PIO controller will save the value if they are changed to outputs. More... | |
| void | pio_set_additional_interrupt_mode (Pio *p_pio, const uint32_t ul_mask, const uint32_t ul_attribute) |
| Set additional interrupt mode. More... | |
| 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). More... | |
| 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. Optionally, the corresponding internal pull-up(s) and glitch filter(s) can be enabled. More... | |
| 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. More... | |
| 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. Optionally, the multi-drive feature can be enabled on the pin(s). More... | |
| 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. More... | |
| void | pio_set_pin_group_high (Pio *p_pio, uint32_t ul_mask) |
| Drive a GPIO port to 1. More... | |
| void | pio_set_pin_group_low (Pio *p_pio, uint32_t ul_mask) |
| Drive a GPIO port to 0. More... | |
| void | pio_set_pin_high (uint32_t ul_pin) |
| Drive a GPIO pin to 1. More... | |
| void | pio_set_pin_low (uint32_t ul_pin) |
| Drive a GPIO pin to 0. More... | |
| void | pio_set_writeprotect (Pio *p_pio, const uint32_t ul_enable) |
| Enable or disable write protect of PIO registers. More... | |
| void | pio_sync_output_write (Pio *p_pio, const uint32_t ul_mask) |
| Synchronously write on output pins. More... | |
| void | pio_toggle_pin (uint32_t ul_pin) |
| Toggle a GPIO pin. More... | |
| void | pio_toggle_pin_group (Pio *p_pio, uint32_t ul_mask) |
| Toggle a GPIO group. More... | |
Detailed Description
Parallel Input/Output (PIO) Controller driver for SAM.
Copyright (c) 2011-2018 Microchip Technology Inc. and its subsidiaries.
Definition in file pio.c.
Macro Definition Documentation
◆ PIO_WPMR_WPKEY_PASSWD
| #define PIO_WPMR_WPKEY_PASSWD PIO_WPMR_WPKEY(0x50494Fu) |