qs_can_basic.c File Reference

SAM CAN basic Quick Start.

Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.

#include <asf.h>
#include <string.h>
#include <conf_can.h>

Macros
#define	CAN_RX_EXTENDED_FILTER_ID_0   0x100000A5
#define	CAN_RX_EXTENDED_FILTER_ID_0_BUFFER_INDEX   1
#define	CAN_RX_EXTENDED_FILTER_ID_1   0x10000096
#define	CAN_RX_EXTENDED_FILTER_INDEX_0   0
#define	CAN_RX_EXTENDED_FILTER_INDEX_1   1
#define	CAN_RX_STANDARD_FILTER_ID_0   0x45A
#define	CAN_RX_STANDARD_FILTER_ID_0_BUFFER_INDEX   2
#define	CAN_RX_STANDARD_FILTER_ID_1   0x469
#define	CAN_RX_STANDARD_FILTER_INDEX_0   0
	[module_inst] More...
#define	CAN_RX_STANDARD_FILTER_INDEX_1   1
#define	CAN_TX_BUFFER_INDEX   0
	[can_filter_setting] More...

Functions
void	CAN0_Handler (void)
	[can_transfer_message_setup] More...
static void	can_send_extended_message (uint32_t id_value, uint8_t *data, uint32_t data_length)
static void	can_send_standard_message (uint32_t id_value, uint8_t *data, uint32_t data_length)
	[can_receive_filter_setup] More...
static void	can_set_extended_filter_0 (void)
static void	can_set_extended_filter_1 (void)
static void	can_set_standard_filter_0 (void)
	[can_init_setup] More...
static void	can_set_standard_filter_1 (void)
static void	configure_can (void)
	[cdc_setup] More...
static void	configure_usart_cdc (void)
	[can_receive_message_setting] More...
static void	display_menu (void)
	[can_interrupt_handler] More...
int	main (void)
	[user_menu] More...

Variables
static struct can_module	can_instance
static struct usart_module	cdc_instance
	[module_var] More...
static volatile uint32_t	extended_receive_index = 0
static struct can_rx_element_buffer	rx_element_buffer
static struct can_rx_element_fifo_0	rx_element_fifo_0
static struct can_rx_element_fifo_1	rx_element_fifo_1
static volatile uint32_t	standard_receive_index = 0
	[can_transfer_message_setting] More...
static uint8_t	tx_message_0 [CONF_CAN_ELEMENT_DATA_SIZE]
static uint8_t	tx_message_1 [CONF_CAN_ELEMENT_DATA_SIZE]

#define CAN_RX_EXTENDED_FILTER_ID_0   0x100000A5

Referenced by can_set_extended_filter_0(), and main().

#define CAN_RX_EXTENDED_FILTER_ID_0_BUFFER_INDEX   1

Referenced by can_set_extended_filter_0().

#define CAN_RX_EXTENDED_FILTER_ID_1   0x10000096

Referenced by can_set_extended_filter_1(), and main().

#define CAN_RX_EXTENDED_FILTER_INDEX_0   0

Referenced by can_set_extended_filter_0().

#define CAN_RX_EXTENDED_FILTER_INDEX_1   1

Referenced by can_set_extended_filter_1().

#define CAN_RX_STANDARD_FILTER_ID_0   0x45A

Referenced by can_set_standard_filter_0(), and main().

#define CAN_RX_STANDARD_FILTER_ID_0_BUFFER_INDEX   2

Referenced by can_set_standard_filter_0().

#define CAN_RX_STANDARD_FILTER_ID_1   0x469

Referenced by can_set_standard_filter_1(), and main().

#define CAN_RX_STANDARD_FILTER_INDEX_0   0

[module_inst]

[can_filter_setting]

Referenced by can_set_standard_filter_0().

#define CAN_RX_STANDARD_FILTER_INDEX_1   1

Referenced by can_set_standard_filter_1().

#define CAN_TX_BUFFER_INDEX   0

[can_filter_setting]

[can_transfer_message_setting]

Referenced by can_send_extended_message(), and can_send_standard_message().

void CAN0_Handler

(

void

)

[can_transfer_message_setup]

[can_interrupt_handler]

References CAN_RX_ELEMENT_R0_Type::bit, CAN_RX_ELEMENT_R1_Type::bit, can_clear_interrupt_status(), can_get_rx_buffer_element(), can_get_rx_fifo_0_element(), can_get_rx_fifo_1_element(), can_instance, CAN_PROTOCOL_ERROR_ARBITRATION, CAN_PROTOCOL_ERROR_DATA, can_read_interrupt_status(), CAN_RX_BUFFER_NEW_MESSAGE, can_rx_clear_buffer_status(), CAN_RX_FIFO_0_NEW_MESSAGE, CAN_RX_FIFO_1_NEW_MESSAGE, can_rx_fifo_acknowledge(), can_rx_get_buffer_status(), can_rx_element_buffer::data, can_rx_element_fifo_0::data, can_rx_element_fifo_1::data, CAN_RX_ELEMENT_R1_Type::DLC, extended_receive_index, i, can_rx_element_buffer::R0, can_rx_element_buffer::R1, can_rx_element_fifo_0::R1, can_rx_element_fifo_1::R1, rx_element_buffer, rx_element_fifo_0, rx_element_fifo_1, standard_receive_index, and CAN_RX_ELEMENT_R0_Type::XTD.

static void can_send_extended_message ( uint32_t  id_value, uint8_t *  data, uint32_t  data_length  )

static

References CAN_TX_ELEMENT_T1_Type::bit, can_get_tx_buffer_element_defaults(), can_instance, can_set_tx_buffer_element(), CAN_TX_BUFFER_INDEX, CAN_TX_ELEMENT_T0_EXTENDED_ID, CAN_TX_ELEMENT_T0_XTD, can_tx_transfer_request(), data, can_tx_element::data, CAN_TX_ELEMENT_T1_Type::DLC, i, CAN_TX_ELEMENT_T0_Type::reg, can_tx_element::T0, and can_tx_element::T1.

Referenced by main().

static void can_send_standard_message ( uint32_t  id_value, uint8_t *  data, uint32_t  data_length  )

static

[can_receive_filter_setup]

[can_transfer_message_setup]

References CAN_TX_ELEMENT_T1_Type::bit, can_get_tx_buffer_element_defaults(), can_instance, can_set_tx_buffer_element(), CAN_TX_BUFFER_INDEX, CAN_TX_ELEMENT_T0_STANDARD_ID, can_tx_transfer_request(), data, can_tx_element::data, CAN_TX_ELEMENT_T1_Type::DLC, i, CAN_TX_ELEMENT_T0_Type::reg, can_tx_element::T0, and can_tx_element::T1.

Referenced by main().

static void can_set_extended_filter_0 ( void  )

static

References CAN_EXTENDED_MESSAGE_FILTER_ELEMENT_F0_Type::bit, CAN_EXTENDED_MESSAGE_FILTER_ELEMENT_F1_Type::bit, can_enable_interrupt(), CAN_EXTENDED_MESSAGE_FILTER_ELEMENT_F0_EFEC_STRXBUF_Val, can_get_extended_message_filter_element_default(), can_instance, CAN_RX_BUFFER_NEW_MESSAGE, CAN_RX_EXTENDED_FILTER_ID_0, CAN_RX_EXTENDED_FILTER_ID_0_BUFFER_INDEX, CAN_RX_EXTENDED_FILTER_INDEX_0, can_set_rx_extended_filter(), CAN_EXTENDED_MESSAGE_FILTER_ELEMENT_F0_Type::EFEC, CAN_EXTENDED_MESSAGE_FILTER_ELEMENT_F0_Type::EFID1, CAN_EXTENDED_MESSAGE_FILTER_ELEMENT_F1_Type::EFID2, can_extended_message_filter_element::F0, and can_extended_message_filter_element::F1.

Referenced by main().

static void can_set_extended_filter_1 ( void  )

static

References CAN_EXTENDED_MESSAGE_FILTER_ELEMENT_F0_Type::bit, can_enable_interrupt(), can_get_extended_message_filter_element_default(), can_instance, CAN_RX_EXTENDED_FILTER_ID_1, CAN_RX_EXTENDED_FILTER_INDEX_1, CAN_RX_FIFO_1_NEW_MESSAGE, can_set_rx_extended_filter(), CAN_EXTENDED_MESSAGE_FILTER_ELEMENT_F0_Type::EFID1, and can_extended_message_filter_element::F0.

Referenced by main().

static void can_set_standard_filter_0 ( void  )

static

[can_init_setup]

[can_receive_filter_setup]

References CAN_STANDARD_MESSAGE_FILTER_ELEMENT_S0_Type::bit, can_enable_interrupt(), can_get_standard_message_filter_element_default(), can_instance, CAN_RX_BUFFER_NEW_MESSAGE, CAN_RX_STANDARD_FILTER_ID_0, CAN_RX_STANDARD_FILTER_ID_0_BUFFER_INDEX, CAN_RX_STANDARD_FILTER_INDEX_0, can_set_rx_standard_filter(), CAN_STANDARD_MESSAGE_FILTER_ELEMENT_S0_SFEC_STRXBUF_Val, can_standard_message_filter_element::S0, CAN_STANDARD_MESSAGE_FILTER_ELEMENT_S0_Type::SFEC, CAN_STANDARD_MESSAGE_FILTER_ELEMENT_S0_Type::SFID1, and CAN_STANDARD_MESSAGE_FILTER_ELEMENT_S0_Type::SFID2.

Referenced by main().

static void can_set_standard_filter_1 ( void  )

static

References CAN_STANDARD_MESSAGE_FILTER_ELEMENT_S0_Type::bit, can_enable_interrupt(), can_get_standard_message_filter_element_default(), can_instance, CAN_RX_FIFO_0_NEW_MESSAGE, CAN_RX_STANDARD_FILTER_ID_1, CAN_RX_STANDARD_FILTER_INDEX_1, can_set_rx_standard_filter(), can_standard_message_filter_element::S0, and CAN_STANDARD_MESSAGE_FILTER_ELEMENT_S0_Type::SFID1.

Referenced by main().

static void configure_can ( void  )

static

[cdc_setup]

[can_init_setup]

References can_enable_interrupt(), can_get_config_defaults(), can_init(), can_instance, CAN_PROTOCOL_ERROR_ARBITRATION, CAN_PROTOCOL_ERROR_DATA, can_start(), i, system_pinmux_config::mux_position, system_interrupt_enable(), system_pinmux_get_config_defaults(), system_pinmux_pin_set_config(), tx_message_0, and tx_message_1.

Referenced by main().

static void configure_usart_cdc ( void  )

static

[can_receive_message_setting]

[module_var] [setup] [cdc_setup]

References usart_config::baudrate, cdc_instance, 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 display_menu ( void  )

static

[can_interrupt_handler]

[user_menu]

Referenced by main().

int main

(

void

)

[user_menu]

[setup]

[setup_init]

[setup_init]

[main_setup]

[configure_can]

[configure_can]

[display_user_menu]

[display_user_menu]

[main_loop]

[main_loop]

[main_setup]

References CAN_RX_EXTENDED_FILTER_ID_0, CAN_RX_EXTENDED_FILTER_ID_1, CAN_RX_STANDARD_FILTER_ID_0, CAN_RX_STANDARD_FILTER_ID_1, can_send_extended_message(), can_send_standard_message(), can_set_extended_filter_0(), can_set_extended_filter_1(), can_set_standard_filter_0(), can_set_standard_filter_1(), configure_can(), configure_usart_cdc(), display_menu(), system_init(), tx_message_0, and tx_message_1.

struct can_module can_instance

static

Referenced by CAN0_Handler(), can_send_extended_message(), can_send_standard_message(), can_set_extended_filter_0(), can_set_extended_filter_1(), can_set_standard_filter_0(), can_set_standard_filter_1(), and configure_can().

struct usart_module cdc_instance

static

[module_var]

[module_inst]

Referenced by configure_usart_cdc().

volatile uint32_t extended_receive_index = 0

static

Referenced by CAN0_Handler().

struct can_rx_element_buffer rx_element_buffer

static

Referenced by CAN0_Handler().

struct can_rx_element_fifo_0 rx_element_fifo_0

static

Referenced by CAN0_Handler().

struct can_rx_element_fifo_1 rx_element_fifo_1

static

Referenced by CAN0_Handler().

volatile uint32_t standard_receive_index = 0

static

[can_transfer_message_setting]

[can_receive_message_setting]

Referenced by CAN0_Handler().

uint8_t tx_message_0[CONF_CAN_ELEMENT_DATA_SIZE]

static

Referenced by configure_can(), and main().

uint8_t tx_message_1[CONF_CAN_ELEMENT_DATA_SIZE]

static

Referenced by configure_can(), and main().