main.c File Reference

I2C Master Bootloader Bridge Application.

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

#include <string.h>
#include <asf.h>
#include "conf_usb.h"
#include "ui.h"
#include "conf_app.h"

Macros
#define	PATTERN_TEST_LENGTH   (5 * UDI_CDC_DATA_EPS_FS_SIZE)

Functions
void	cdc_rx_notify (uint8_t port)
static void	configure_i2c_master (void)
	Configure I2C master. More...
static void	configure_usart (void)
	Configure UART console. More...
int	main (void)
	Main function. Execution starts here. More...
void	main_cdc_disable (uint8_t port)
	Closes the communication port This is called by CDC interface when USB Host disable it. More...
bool	main_cdc_enable (uint8_t port)
	Opens the communication port This is called by CDC interface when USB Host enable it. More...
void	main_cdc_set_dtr (uint8_t port, bool b_enable)
	Save new DTR state to change led behavior. The DTR notify that the terminal have open or close the communication port. More...
void	main_remotewakeup_lpm_disable (void)
	Called by UDC when USB Host request to disable LPM remote wakeup. More...
void	main_remotewakeup_lpm_enable (void)
	Called by UDC when USB Host request to enable LPM remote wakeup. More...
void	main_resume_action (void)
	Turn on a led to notify active mode Called when the USB line is resumed from the suspend state. More...
void	main_sof_action (void)
	Manages the leds behaviors Called when a start of frame is received on USB line each 1ms. More...
void	main_suspend_action (void)
	Enters the application in low power mode Callback called when USB host sets USB line in suspend state. More...
void	main_suspend_lpm_action (void)
	Enters the application in low power mode Callback called when USB host sets LPM suspend state. More...

Variables
static volatile bool	b_cdc_data_rx = false
static volatile bool	b_com_port_opened = false
static volatile bool	b_wait = false
uint8_t	cdc_data [PATTERN_TEST_LENGTH]
struct i2c_master_module	i2c_master_instance
static volatile bool	main_b_cdc_enable = false
struct usart_module	usart_instance

#define PATTERN_TEST_LENGTH   (5 * UDI_CDC_DATA_EPS_FS_SIZE)

Referenced by main().

void cdc_rx_notify

(

uint8_t

port

)

References b_cdc_data_rx.

static void configure_i2c_master ( void  )

static

Configure I2C master.

References BOOT_I2C_PAD0, BOOT_I2C_PAD1, i2c_master_config::buffer_timeout, GCLK_GENERATOR_3, i2c_master_config::generator_source, i2c_master_enable(), i2c_master_get_config_defaults(), i2c_master_init(), i2c_master_instance, i2c_master_config::pinmux_pad0, and i2c_master_config::pinmux_pad1.

Referenced by main_cdc_enable().

static void configure_usart ( void  )

static

Configure UART console.

References usart_config::baudrate, EDBG_CDC_MODULE, EDBG_CDC_SERCOM_MUX_SETTING, EDBG_CDC_SERCOM_PINMUX_PAD0, EDBG_CDC_SERCOM_PINMUX_PAD1, EDBG_CDC_SERCOM_PINMUX_PAD2, EDBG_CDC_SERCOM_PINMUX_PAD3, GCLK_GENERATOR_3, usart_config::generator_source, usart_config::mux_setting, usart_config::pinmux_pad0, usart_config::pinmux_pad1, usart_config::pinmux_pad2, usart_config::pinmux_pad3, usart_enable(), usart_get_config_defaults(), and usart_instance.

Referenced by main().

int main

(

void

)

Main function. Execution starts here.

References i2c_master_packet::address, b_cdc_data_rx, b_com_port_opened, b_wait, cdc_data, configure_usart(), cpu_irq_enable, i2c_master_packet::data, i2c_master_packet::data_length, i2c_master_instance, i2c_master_read_packet_wait(), i2c_master_write_packet_wait(), irq_initialize_vectors, MSB0W, MSB1W, MSB2W, MSB3W, PATTERN_TEST_LENGTH, SLAVE_ADDRESS, sleepmgr_init(), STATUS_OK, system_init(), TARGET_PAGE_SIZE, udc_start(), udi_cdc_get_nb_received_data(), udi_cdc_read_buf(), udi_cdc_write_buf(), ui_init(), and ui_powerdown().

void main_cdc_disable

(

uint8_t

port

)

Closes the communication port This is called by CDC interface when USB Host disable it.

References b_com_port_opened, i2c_master_disable(), i2c_master_instance, and main_b_cdc_enable.

bool main_cdc_enable

(

uint8_t

port

)

Opens the communication port This is called by CDC interface when USB Host enable it.

Return values

true	if cdc startup is successfully done

References configure_i2c_master(), and main_b_cdc_enable.

void main_cdc_set_dtr	(	uint8_t	port,
		bool	b_enable
	)

Save new DTR state to change led behavior. The DTR notify that the terminal have open or close the communication port.

References b_com_port_opened, ui_com_close(), and ui_com_open().

void main_remotewakeup_lpm_disable

(

void

)

Called by UDC when USB Host request to disable LPM remote wakeup.

References ui_wakeup_disable().

void main_remotewakeup_lpm_enable

(

void

)

Called by UDC when USB Host request to enable LPM remote wakeup.

References ui_wakeup_enable().

void main_resume_action

(

void

)

Turn on a led to notify active mode Called when the USB line is resumed from the suspend state.

References ui_wakeup().

void main_sof_action

(

void

)

Manages the leds behaviors Called when a start of frame is received on USB line each 1ms.

References main_b_cdc_enable, udd_get_frame_number(), and ui_process().

void main_suspend_action

(

void

)

Enters the application in low power mode Callback called when USB host sets USB line in suspend state.

References ui_powerdown().

void main_suspend_lpm_action

(

void

)

Enters the application in low power mode Callback called when USB host sets LPM suspend state.

References ui_powerdown().

volatile bool b_cdc_data_rx = false

static

Referenced by cdc_rx_notify(), and main().

volatile bool b_com_port_opened = false

static

Referenced by main(), main_cdc_disable(), and main_cdc_set_dtr().

volatile bool b_wait = false

static

Referenced by main().

uint8_t cdc_data[PATTERN_TEST_LENGTH]

Referenced by main().

struct i2c_master_module i2c_master_instance

Referenced by configure_i2c_master(), main(), and main_cdc_disable().

volatile bool main_b_cdc_enable = false

static

Referenced by main_cdc_disable(), main_cdc_enable(), and main_sof_action().

struct usart_module usart_instance

Referenced by configure_usart().