qs_usart_callback.c File Reference

SAM USART Quick Start.

Copyright (c) 2012-2018 Microchip Technology Inc. and its subsidiaries.

#include <asf.h>
#include <stdio.h>

Macros
#define	MAX_RX_BUFFER_LENGTH   5
	[module_inst] More...

Functions
void	configure_usart (void)
	[callback_funcs] More...
void	configure_usart_callbacks (void)
int	main (void)
	[setup] More...
void	usart_read_callback (struct usart_module *const usart_module)
	[rx_buffer_var] More...
void	usart_write_callback (struct usart_module *const usart_module)

Variables
volatile uint8_t	rx_buffer [MAX_RX_BUFFER_LENGTH]
struct usart_module	usart_instance
	[module_inst] More...

#define MAX_RX_BUFFER_LENGTH   5

[module_inst]

[rx_buffer_var]

Referenced by main(), and usart_read_callback().

static void configure_usart

(

void

)

[callback_funcs]

Initialize USART to communicate with on board EDBG - SERCOM with the following settings.

[module_inst]

[setup]

• 8-bit asynchronous USART
• No parity
• One stop bit
• 115200 baud

[setup_config]

[setup_config] [setup_config_defaults]

[setup_config_defaults]

[setup_change_config]

[setup_set_config]

[setup_set_config]

[setup_enable]

[setup_enable]

References usart_config::baudrate, usart_config::mux_setting, usart_config::pinmux_pad0, usart_config::pinmux_pad1, usart_config::pinmux_pad2, usart_config::pinmux_pad3, STATUS_OK, usart_enable(), usart_get_config_defaults(), usart_init(), and usart_instance.

void configure_usart_callbacks

(

void

)

[setup_register_callbacks]

[setup_register_callbacks]

[setup_enable_callbacks]

[setup_enable_callbacks]

References USART_CALLBACK_BUFFER_RECEIVED, USART_CALLBACK_BUFFER_TRANSMITTED, usart_enable_callback(), usart_instance, usart_read_callback(), usart_register_callback(), and usart_write_callback().

Referenced by main().

int main

(

void

)

[setup]

[setup_init]

[setup_init]

[main] [enable_global_interrupts]

[enable_global_interrupts]

[main_send_string]

[main_send_string]

[main_loop]

[main_loop] [main_read]

[main_read]

[main]

References configure_usart(), configure_usart_callbacks(), MAX_RX_BUFFER_LENGTH, rx_buffer, system_init(), system_interrupt_enable_global(), usart_instance, usart_read_buffer_job(), and usart_write_buffer_wait().

void usart_read_callback

(

struct usart_module *const

usart_module

)

[rx_buffer_var]

[callback_funcs]

References MAX_RX_BUFFER_LENGTH, rx_buffer, usart_instance, and usart_write_buffer_job().

Referenced by configure_usart_callbacks().

void usart_write_callback

(

struct usart_module *const

usart_module

)

References port_pin_toggle_output_level().

Referenced by configure_usart_callbacks().

volatile uint8_t rx_buffer[MAX_RX_BUFFER_LENGTH]

Referenced by main(), and usart_read_callback().

struct usart_module usart_instance

[module_inst]