can_task.c File Reference

Application CAN Task Management.

Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.

#include <stddef.h>
#include <stdio.h>
#include <avr32/io.h>
#include "compiler.h"
#include "board.h"
#include "power_clocks_lib.h"
#include "gpio.h"
#include "pm_uc3c.h"
#include "scif_uc3c.h"
#include "print_funcs.h"
#include "can_task.h"
#include "conf_can_task.h"
#include "dsp.h"
#include "conf_demo.h"

Functions
void	can_example_prepare_data_to_receive (void)
	CAN Prepare Data to Receive. More...
void	can_example_prepare_data_to_send (void)
	Local function to prepare RX and TX buffers. More...
void	can_out_callback_channel0 (U8 handle, U8 event)
	CAN Call Back when message is received. More...
void	can_out_callback_channel1 (U8 handle, U8 event)
	CAN Call Back when message is transmitted. More...
void	can_task (void)
	CAN Task: More...
void	can_task_init (void)

Variables
volatile uint16_t	adc_current_conversion
	External reference on ADC Current Conversion. More...
volatile bool	message_received_on_channel0 = false
	Boolean for message transmitted on CAN channel 0. More...
volatile bool	message_transmitted_on_channel1 = false
	Boolean for message transmitted on CAN channel 1. More...
can_msg_t	mob_ram_ch0 [NB_MOB_CHANNEL]
	Local Mob Declaration. More...
can_msg_t	mob_ram_ch1 [NB_MOB_CHANNEL]
A_ALIGNED dsp16_t	signal3_buf [BUFFER_LENGTH]
	Buffer to store ADC Conversions. More...

void can_example_prepare_data_to_receive

(

void

)

CAN Prepare Data to Receive.

• Allocate one MOB in reception
• Start the reception

References can_init(), can_mob_alloc(), can_out_callback_channel0(), can_rx(), CANIF_CHANNEL_MODE_NORMAL, can_mob_t::handle, and pCANMOB_message2.

Referenced by can_task(), and can_task_init().

void can_example_prepare_data_to_send

(

void

)

Local function to prepare RX and TX buffers.

CAN Prepare Data to Send.

• Allocate one MOB in transmission
• Fill the MOB with the correct DATA
• Start the transmission

References adc_current_conversion, CAN_CMD_REFUSED, can_init(), can_mob_alloc(), can_mob_t::can_msg, can_out_callback_channel1(), can_tx(), CANIF_CHANNEL_MODE_NORMAL, can_msg_t::data, can_mob_t::handle, pCANMOB_message0, and Union64::u8.

Referenced by can_task(), and can_task_init().

void can_out_callback_channel0	(	U8	handle,
		U8	event
	)

CAN Call Back when message is received.

Call Back called by can_drv.

References can_get_mob_data(), can_get_mob_dlc(), can_get_mob_id(), can_mob_free(), can_mob_t::can_msg, can_msg_t::data, can_mob_t::dlc, gpio_tgl_gpio_pin(), can_msg_t::id, message_received_on_channel0, pCANMOB_message2, can_mob_t::status, and Union64::u64.

Referenced by can_example_prepare_data(), can_example_prepare_data_to_receive(), and main().

void can_out_callback_channel1	(	U8	handle,
		U8	event
	)

CAN Call Back when message is transmitted.

References can_mob_free(), gpio_tgl_gpio_pin(), and message_transmitted_on_channel1.

Referenced by can_example_prepare_data_to_send().

void can_task

(

void

)

CAN Task:

• Check if messages are correctly transmitted/received
• Update message for transmission/reception

References BUFFER_LENGTH, can_example_prepare_data_to_receive(), can_example_prepare_data_to_send(), can_mob_t::can_msg, can_msg_t::data, i, message_received_on_channel0, message_transmitted_on_channel1, pCANMOB_message2, signal3_buf, and Union64::u8.

Referenced by main().

void can_task_init

(

void

)

References can_example_prepare_data_to_receive(), can_example_prepare_data_to_send(), gpio_enable_module(), scif_gc_enable(), scif_gc_setup(), and SCIF_GCCTRL_OSC0.

Referenced by main().

volatile uint16_t adc_current_conversion

External reference on ADC Current Conversion.

Referenced by adc_process_task(), and can_example_prepare_data_to_send().

volatile bool message_received_on_channel0 = false

Boolean for message transmitted on CAN channel 0.

Referenced by can_out_callback_channel0(), and can_task().

volatile bool message_transmitted_on_channel1 = false

Boolean for message transmitted on CAN channel 1.

Referenced by can_out_callback_channel1(), and can_task().

can_msg_t mob_ram_ch0[NB_MOB_CHANNEL]

Local Mob Declaration.

can_msg_t mob_ram_ch1[NB_MOB_CHANNEL]

A_ALIGNED dsp16_t signal3_buf[BUFFER_LENGTH]

Buffer to store ADC Conversions.

Referenced by can_task(), and gui_task().