Display

Utility to control the display and log messages. More...

Data Structures
struct	log_message_t
	Structure to describe a log message. More...

Macros
#define	STACKSIZE_TASK   ( 256 )
	Stack size of the display task. More...
#define	PRIORITY_TASK   ( 3 )
	Priority of the Display task (low priority number denotes low priority task) More...
#define	QUEUE_SIZE   10
	Size of the message queue. More...
#define	DISPLAY_LINES   30
	Number of lines that fit on the display (vertically) More...
#define	DISPLAY_CHARS   64
	Number of horizontal characters that can be displayed. More...

Functions
uint8_t	display_log (uint8_t id, const char *fmtstr,...)
	Logs a message to the display global. More...
void	display_init ()
	Initializes the display and starts the display task global. More...

Variables
uint8_t	visible_messages =0
	Number of currently visible messages. More...
uint8_t	buffer_offset = 0
	Offset in the message_buffer to get to the top message. More...
log_message_t	message_buffer [DISPLAY_LINES]
	buffer of all visible messages (ring buffer!) More...

Detailed Description

Utility to control the display and log messages.

Macro Definition Documentation

DISPLAY_CHARS

#define DISPLAY_CHARS   64

Number of horizontal characters that can be displayed.

Definition at line 44 of file display.c.

DISPLAY_LINES

#define DISPLAY_LINES   30

Number of lines that fit on the display (vertically)

Definition at line 43 of file display.c.

PRIORITY_TASK

#define PRIORITY_TASK   ( 3 )

Priority of the Display task (low priority number denotes low priority task)

Definition at line 39 of file display.c.

QUEUE_SIZE

#define QUEUE_SIZE   10

Size of the message queue.

Definition at line 41 of file display.c.

STACKSIZE_TASK

#define STACKSIZE_TASK   ( 256 )

Stack size of the display task.

Definition at line 38 of file display.c.

Function Documentation

display_init()

void display_init

(

)

Initializes the display and starts the display task global.

Returns

none

Definition at line 199 of file display.c.

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display_log()

uint8_t display_log	(	uint8_t	id,
		const char *	fmtstr,
			...
	)

Logs a message to the display global.

Parameters

[in]	uint8_t	id Message-ID to overwrite. Pass DISPLAY_NEWLINE to create a new message
[in]	const	char* fmtstr Printf formatstring
[in]	...	Arguments for format specification

Returns

uint8_t Id of the message that was printed

Definition at line 70 of file display.c.

Variable Documentation

buffer_offset

uint8_t buffer_offset = 0

Offset in the message_buffer to get to the top message.

Definition at line 143 of file display.c.

message_buffer

log_message_t message_buffer[DISPLAY_LINES]

buffer of all visible messages (ring buffer!)

Definition at line 144 of file display.c.

visible_messages

uint8_t visible_messages =0

Number of currently visible messages.

Definition at line 142 of file display.c.