Provide stdio retargeting to TFT address mapped mode.

Version: 5.4.0

License

Copyright 2015 Silicon Labs, Inc. http://www.silabs.com

This file is licensed under the Silabs License Agreement. See the file "Silabs_License_Agreement.txt" for details. Before using this software for any purpose, you must agree to the terms of that agreement.

Definition in file retargettft.c .


       #include <stdio.h>


       #include <stdint.h>


       #include "
       
        em_device.h
       
       "


       #include "
       
        em_cmu.h
       
       "


       #include "
       
        em_ebi.h
       
       "


       #include "
       
        em_gpio.h
       
       "


       #include "dmd/ssd2119/dmd_ssd2119.h"


       #include "
       
        bsp.h
       
       "


       #include "retargettft.h"


       #include "
       
        displayfont8x8.h
       
       "

Macros
#define	CHARS 40

#define	fontBits chars_8x8_bits

#define	LINES 30

Functions
int	RETARGET_ReadChar (void)
	Receive a byte No input method from TFT is possible, thus we always return -1.

void	RETARGET_TftCrLf (int on)
	Toggle LF to CRLF conversion.

void	RETARGET_TftInit (void)
	Intializes TFT text display.

void	RETARGET_TFTTX (int c)
	Transmit/display a character.

void	RETARGET_TFTUpdate (bool fullFrame)
	Display framebuffer.

int	RETARGET_WriteChar (char c)
	Transmit single byte to the TFT.

static void	tftTextReset (void)
	Reset TFT text display state.

static void	tftTextScrollUp (void)
	Scroll one line of characters up on the screen.

Variables
static bool	bufferReset = true

static uint8_t	charBuffer [ LINES ][ CHARS ]

static bool	fullUpdate = true

static bool	initialized = false

static bool	LFtoCRLF = 0

static uint8_t	rgbColor [3]

static bool	tftReset = true

static int	xpos

static int	ypos

Macro Definition Documentation

#define CHARS 40

Characters

Definition at line 29 of file retargettft.c .

Referenced by RETARGET_TFTTX() , RETARGET_TFTUpdate() , tftTextReset() , and tftTextScrollUp() .

#define fontBits chars_8x8_bits

Define font

Definition at line 27 of file retargettft.c .

Referenced by RETARGET_TFTUpdate() .

#define LINES 30

Lines

Definition at line 30 of file retargettft.c .

Referenced by RETARGET_TFTTX() , RETARGET_TFTUpdate() , tftTextReset() , and tftTextScrollUp() .

Variable Documentation

bool bufferReset = true

static

Reset buffer

Definition at line 39 of file retargettft.c .

Referenced by RETARGET_WriteChar() , and tftTextReset() .

uint8_t charBuffer[ LINES ][ CHARS ]

static

Character buffer

Definition at line 32 of file retargettft.c .

Referenced by RETARGET_TFTTX() , RETARGET_TFTUpdate() , tftTextReset() , and tftTextScrollUp() .

bool fullUpdate = true

static

Display updated

Definition at line 38 of file retargettft.c .

Referenced by RETARGET_WriteChar() , and tftTextScrollUp() .

bool initialized = false

static

Intialize TFT stdio retarget

Definition at line 42 of file retargettft.c .

Referenced by RETARGET_WriteChar() , and tftTextReset() .

bool LFtoCRLF = 0

static

LF to CRLF conversion disabled

Definition at line 41 of file retargettft.c .

Referenced by RETARGET_TftCrLf() , and RETARGET_WriteChar() .

uint8_t rgbColor[3]

static

Color for font

Definition at line 33 of file retargettft.c .

Referenced by RETARGET_TFTTX() , RETARGET_TFTUpdate() , and tftTextReset() .

bool tftReset = true

static

Reset TFT

Definition at line 40 of file retargettft.c .

Referenced by RETARGET_WriteChar() , and tftTextReset() .

int xpos

static

Cursor position

Definition at line 36 of file retargettft.c .

Referenced by RETARGET_TFTTX() , RETARGET_TFTUpdate() , tftTextReset() , and tftTextScrollUp() .

int ypos

static

Cursor position

Definition at line 36 of file retargettft.c .

Referenced by RETARGET_TFTTX() , RETARGET_TFTUpdate() , tftTextReset() , and tftTextScrollUp() .