From 6a0c85760c655e490da7b9e764f0972b11bfef90 Mon Sep 17 00:00:00 2001 From: Bdale Garbee Date: Mon, 29 Nov 2010 21:39:15 -0700 Subject: [PATCH] sources from initial AVR turn-on for TeleTerra --- avr/tmp/doxygen.css | 49 ++ avr/tmp/doxygen.png | Bin 0 -> 1281 bytes avr/tmp/group__pfleury__lcd.html | 1174 ++++++++++++++++++++++++++++++ avr/tmp/lcd.c | 609 ++++++++++++++++ avr/tmp/lcd.h | 265 +++++++ avr/tmp/makefile | 425 +++++++++++ avr/tmp/test_lcd.c | 167 +++++ avr/tthello.c | 35 + 8 files changed, 2724 insertions(+) create mode 100644 avr/tmp/doxygen.css create mode 100644 avr/tmp/doxygen.png create mode 100644 avr/tmp/group__pfleury__lcd.html create mode 100644 avr/tmp/lcd.c create mode 100644 avr/tmp/lcd.h create mode 100644 avr/tmp/makefile create mode 100644 avr/tmp/test_lcd.c create mode 100644 avr/tthello.c diff --git a/avr/tmp/doxygen.css b/avr/tmp/doxygen.css new file mode 100644 index 00000000..8cb8b2e5 --- /dev/null +++ b/avr/tmp/doxygen.css @@ -0,0 +1,49 @@ +H1 { text-align: center; } +CAPTION { font-weight: bold } +A.qindex {} +A.qindexRef {} +A.el { text-decoration: none; font-weight: bold } +A.elRef { font-weight: bold } +A.code { text-decoration: none; font-weight: normal; color: #4444ee } +A.codeRef { font-weight: normal; color: #4444ee } +A:hover { text-decoration: none; background-color: #f2f2ff } +DL.el { margin-left: -1cm } +DIV.fragment { width: 100%; border: none; background-color: #eeeeee } +DIV.ah { background-color: black; font-weight: bold; color: #ffffff; margin-bottom: 3px; margin-top: 3px } +TD.md { background-color: #f2f2ff; font-weight: bold; } +TD.mdname1 { background-color: #f2f2ff; font-weight: bold; color: #602020; } +TD.mdname { background-color: #f2f2ff; font-weight: bold; color: #602020; width: 600px; } +DIV.groupHeader { margin-left: 16px; margin-top: 12px; margin-bottom: 6px; font-weight: bold } +DIV.groupText { margin-left: 16px; font-style: italic; font-size: smaller } +BODY { background: white; color: black } +TD.indexkey { + background-color: #eeeeff; + font-weight: bold; + padding-right : 10px; + padding-top : 2px; + padding-left : 10px; + padding-bottom : 2px; + margin-left : 0px; + margin-right : 0px; + margin-top : 2px; + margin-bottom : 2px +} +TD.indexvalue { + background-color: #eeeeff; + font-style: italic; + padding-right : 10px; + padding-top : 2px; + padding-left : 10px; + padding-bottom : 2px; + margin-left : 0px; + margin-right : 0px; + margin-top : 2px; + margin-bottom : 2px +} +span.keyword { color: #008000 } +span.keywordtype { color: #604020 } +span.keywordflow { color: #e08000 } +span.comment { color: #800000 } +span.preprocessor { color: #806020 } +span.stringliteral { color: #002080 } +span.charliteral { color: #008080 } diff --git a/avr/tmp/doxygen.png b/avr/tmp/doxygen.png new file mode 100644 index 0000000000000000000000000000000000000000..f0a274bbaffdd67f6d784c894d9cf28729db0e14 GIT binary patch literal 1281 zcmaJ>ZA?>F7(Vx-ms?uoS`b@hdRtpo6o^%HU>M$hfGrBvQnk$LE?p^P!kn&ikhyq! zX~V@&tPF5Qt@V?oTL96Bi%aRiwbe1)9DWQI#?)=HxS7QSw`J`5fAJ*eJbB;uNuKA& zdERDo*{Y<(If(#(B$Lr#;nB(8Y#ia=ZCeW?JfPLuQY`=@cW$k}Rivq|vbxGrRq1Tl9;+(gNt?}UtVKM2`T5t1jLzuL@0UIs`S#vlhl4)^ zLgSYrPj@$+`|j?eSbXTmiHGkWxV8V}BzNR?pl9k_s4pDu9vd5a_UzZEPk)}Ad{AV_ zzddrjrh4=Imr`E06;LY{)YYt?o}L~H@7C}F^WB!Ra=v`Q0bj{>5&$66CWF>mf6vjP z2N>RRY6ZYa=K`76>+|_)Xdwko+7wv}7cN|btOhWb(*{sta~6b?S8Omrxw}!4`NhGr zZVpNqpu1@BE`QGWNTpEpcJVW5izu~2B^GlM?1(OPg)zwW;QcP@Ltcclm>XbJL9C|j z=9!2?ua=uIlf0%AndzHsRC}IyTL$EhAee(fdKB`?27KeS^2M8M_7b~PiCFO&r5LC7 z7gl1*a<8;SjNaw#h=843_AV9iZbWQOAp5YOC^&_F*9K0> zB|6%IDb?aM#3viTxkLU4aXg&@+CkNTOnQ1iMP*^?b|^lJy$4C)Zk4isV!|RZ*XhXh zw8q3$=*0LeGC!XI_Wc?dkT~3+*Gu%%yIqP+Wr3H$=&ROMQU6q}Ag^P~>c5vAEO;a- z_dK-3PPeKar%)6$j~vI2#*-YH!1h6HYVtwCX5_wM`iF#UKz&&@9Oo5w3%XGYrX zW>dY~)SG-((Yim%`InwgTvyRC?e=Wh^8KCao!R6Eg&TpVWUY1sN~4G}V?nFnEGo-; zHZ_$eW9-GnC%^WS9b z@p;-$oH#MtC0v>Q$HX%4^JdFdO$0cbv-W)Q TtK}Eh@>>I#ipmV1>S*>q-hkC} literal 0 HcmV?d00001 diff --git a/avr/tmp/group__pfleury__lcd.html b/avr/tmp/group__pfleury__lcd.html new file mode 100644 index 00000000..ddfffb0e --- /dev/null +++ b/avr/tmp/group__pfleury__lcd.html @@ -0,0 +1,1174 @@ + + +AVR-GCC libraries: LCD library + + + + +

LCD library

Detailed Description

+Basic routines for interfacing a HD44780U-based text LCD display. +

+

 #include <lcd.h> 
+

+Originally based on Volker Oth's LCD library, changed lcd_init(), added additional constants for lcd_command(), added 4-bit I/O mode, improved and optimized code.

+Library can be operated in memory mapped mode (LCD_IO_MODE=0) or in 4-bit IO port mode (LCD_IO_MODE=1). 8-bit IO port mode not supported.

+Memory mapped mode compatible with Kanda STK200, but supports also generation of R/W signal through A8 address line.

+

Author:
Peter Fleury pfleury@gmx.ch http://jump.to/fleury
+
See also:
The chapter Interfacing a HD44780 Based LCD to an AVR on my home page.
+ +

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Definitions for MCU Clock Frequency

Adapt the MCU clock frequency in Hz to your target.

#define XTAL   4000000

Definition for LCD controller type

Use 0 for HD44780 controller, change to 1 for displays with KS0073 controller.

#define LCD_CONTROLLER_KS0073   0

Definitions for Display Size

Change these definitions to adapt setting to your display

#define LCD_LINES   2
#define LCD_DISP_LENGTH   16
#define LCD_LINE_LENGTH   0x40
#define LCD_START_LINE1   0x00
#define LCD_START_LINE2   0x40
#define LCD_START_LINE3   0x14
#define LCD_START_LINE4   0x54
#define LCD_WRAP_LINES   0
#define LCD_IO_MODE   1

Definitions for 4-bit IO mode

Change LCD_PORT if you want to use a different port for the LCD pins.

+The four LCD data lines and the three control lines RS, RW, E can be on the same port or on different ports. Change LCD_RS_PORT, LCD_RW_PORT, LCD_E_PORT if you want the control lines on different ports.

+Normally the four data lines should be mapped to bit 0..3 on one port, but it is possible to connect these data lines in different order or even on different ports by adapting the LCD_DATAx_PORT and LCD_DATAx_PIN definitions.

#define LCD_PORT   PORTA
#define LCD_DATA0_PORT   LCD_PORT
#define LCD_DATA1_PORT   LCD_PORT
#define LCD_DATA2_PORT   LCD_PORT
#define LCD_DATA3_PORT   LCD_PORT
#define LCD_DATA0_PIN   0
#define LCD_DATA1_PIN   1
#define LCD_DATA2_PIN   2
#define LCD_DATA3_PIN   3
#define LCD_RS_PORT   LCD_PORT
#define LCD_RS_PIN   4
#define LCD_RW_PORT   LCD_PORT
#define LCD_RW_PIN   5
#define LCD_E_PORT   LCD_PORT
#define LCD_E_PIN   6

Definitions for LCD command instructions

The constants define the various LCD controller instructions which can be passed to the function lcd_command(), see HD44780 data sheet for a complete description.

+#define LCD_CLR   0
+#define LCD_HOME   1
+#define LCD_ENTRY_MODE   2
+#define LCD_ENTRY_INC   1
+#define LCD_ENTRY_SHIFT   0
+#define LCD_ON   3
+#define LCD_ON_DISPLAY   2
+#define LCD_ON_CURSOR   1
+#define LCD_ON_BLINK   0
+#define LCD_MOVE   4
+#define LCD_MOVE_DISP   3
+#define LCD_MOVE_RIGHT   2
+#define LCD_FUNCTION   5
+#define LCD_FUNCTION_8BIT   4
+#define LCD_FUNCTION_2LINES   3
+#define LCD_FUNCTION_10DOTS   2
+#define LCD_CGRAM   6
+#define LCD_DDRAM   7
+#define LCD_BUSY   7
+#define LCD_ENTRY_DEC   0x04
+#define LCD_ENTRY_DEC_SHIFT   0x05
+#define LCD_ENTRY_INC_   0x06
+#define LCD_ENTRY_INC_SHIFT   0x07
+#define LCD_DISP_OFF   0x08
+#define LCD_DISP_ON   0x0C
+#define LCD_DISP_ON_BLINK   0x0D
+#define LCD_DISP_ON_CURSOR   0x0E
+#define LCD_DISP_ON_CURSOR_BLINK   0x0F
+#define LCD_MOVE_CURSOR_LEFT   0x10
+#define LCD_MOVE_CURSOR_RIGHT   0x14
+#define LCD_MOVE_DISP_LEFT   0x18
+#define LCD_MOVE_DISP_RIGHT   0x1C
+#define LCD_FUNCTION_4BIT_1LINE   0x20
+#define LCD_FUNCTION_4BIT_2LINES   0x28
+#define LCD_FUNCTION_8BIT_1LINE   0x30
+#define LCD_FUNCTION_8BIT_2LINES   0x38
+#define LCD_MODE_DEFAULT   ((1<<LCD_ENTRY_MODE) | (1<<LCD_ENTRY_INC) )

Functions

+#define lcd_puts_P(__s)   lcd_puts_p(PSTR(__s))
 macros for automatically storing string constant in program memory
void lcd_init (uint8_t dispAttr)
 Initialize display and select type of cursor.
void lcd_clrscr (void)
 Clear display and set cursor to home position.
void lcd_home (void)
 Set cursor to home position.
void lcd_gotoxy (uint8_t x, uint8_t y)
 Set cursor to specified position.
void lcd_putc (char c)
 Display character at current cursor position.
void lcd_puts (const char *s)
 Display string without auto linefeed.
void lcd_puts_p (const char *progmem_s)
 Display string from program memory without auto linefeed.
void lcd_command (uint8_t cmd)
 Send LCD controller instruction command.
void lcd_data (uint8_t data)
 Send data byte to LCD controller.
+

Define Documentation

+

+ + + + +
+ + + + +
#define XTAL   4000000
+
+ + + + + +
+   + + +

+clock frequency in Hz, used to calculate delay timer

+

+ + + + +
+ + + + +
#define LCD_CONTROLLER_KS0073   0
+
+ + + + + +
+   + + +

+Use 0 for HD44780 controller, 1 for KS0073 controller

+

+ + + + +
+ + + + +
#define LCD_LINES   2
+
+ + + + + +
+   + + +

+number of visible lines of the display

+

+ + + + +
+ + + + +
#define LCD_DISP_LENGTH   16
+
+ + + + + +
+   + + +

+visibles characters per line of the display

+

+ + + + +
+ + + + +
#define LCD_LINE_LENGTH   0x40
+
+ + + + + +
+   + + +

+internal line length of the display

+

+ + + + +
+ + + + +
#define LCD_START_LINE1   0x00
+
+ + + + + +
+   + + +

+DDRAM address of first char of line 1

+

+ + + + +
+ + + + +
#define LCD_START_LINE2   0x40
+
+ + + + + +
+   + + +

+DDRAM address of first char of line 2

+

+ + + + +
+ + + + +
#define LCD_START_LINE3   0x14
+
+ + + + + +
+   + + +

+DDRAM address of first char of line 3

+

+ + + + +
+ + + + +
#define LCD_START_LINE4   0x54
+
+ + + + + +
+   + + +

+DDRAM address of first char of line 4

+

+ + + + +
+ + + + +
#define LCD_WRAP_LINES   0
+
+ + + + + +
+   + + +

+0: no wrap, 1: wrap at end of visibile line

+

+ + + + +
+ + + + +
#define LCD_IO_MODE   1
+
+ + + + + +
+   + + +

+0: memory mapped mode, 1: IO port mode

+

+ + + + +
+ + + + +
#define LCD_PORT   PORTA
+
+ + + + + +
+   + + +

+port for the LCD lines

+

+ + + + +
+ + + + +
#define LCD_DATA0_PORT   LCD_PORT
+
+ + + + + +
+   + + +

+port for 4bit data bit 0

+

+ + + + +
+ + + + +
#define LCD_DATA1_PORT   LCD_PORT
+
+ + + + + +
+   + + +

+port for 4bit data bit 1

+

+ + + + +
+ + + + +
#define LCD_DATA2_PORT   LCD_PORT
+
+ + + + + +
+   + + +

+port for 4bit data bit 2

+

+ + + + +
+ + + + +
#define LCD_DATA3_PORT   LCD_PORT
+
+ + + + + +
+   + + +

+port for 4bit data bit 3

+

+ + + + +
+ + + + +
#define LCD_DATA0_PIN   0
+
+ + + + + +
+   + + +

+pin for 4bit data bit 0

+

+ + + + +
+ + + + +
#define LCD_DATA1_PIN   1
+
+ + + + + +
+   + + +

+pin for 4bit data bit 1

+

+ + + + +
+ + + + +
#define LCD_DATA2_PIN   2
+
+ + + + + +
+   + + +

+pin for 4bit data bit 2

+

+ + + + +
+ + + + +
#define LCD_DATA3_PIN   3
+
+ + + + + +
+   + + +

+pin for 4bit data bit 3

+

+ + + + +
+ + + + +
#define LCD_RS_PORT   LCD_PORT
+
+ + + + + +
+   + + +

+port for RS line

+

+ + + + +
+ + + + +
#define LCD_RS_PIN   4
+
+ + + + + +
+   + + +

+pin for RS line

+

+ + + + +
+ + + + +
#define LCD_RW_PORT   LCD_PORT
+
+ + + + + +
+   + + +

+port for RW line

+

+ + + + +
+ + + + +
#define LCD_RW_PIN   5
+
+ + + + + +
+   + + +

+pin for RW line

+

+ + + + +
+ + + + +
#define LCD_E_PORT   LCD_PORT
+
+ + + + + +
+   + + +

+port for Enable line

+

+ + + + +
+ + + + +
#define LCD_E_PIN   6
+
+ + + + + +
+   + + +

+pin for Enable line

+

Function Documentation

+

+ + + + +
+ + + + + + + + + +
void lcd_init ( uint8_t  dispAttr  ) 
+
+ + + + + +
+   + + +

+Initialize display and select type of cursor. +

+

Parameters:
+ + +
dispAttr LCD_DISP_OFF display off
+ LCD_DISP_ON display on, cursor off
+ LCD_DISP_ON_CURSOR display on, cursor on
+ LCD_DISP_ON_CURSOR_BLINK display on, cursor on flashing
+
+
Returns:
none
+
+

+ + + + +
+ + + + + + + + + +
void lcd_clrscr ( void   ) 
+
+ + + + + +
+   + + +

+Clear display and set cursor to home position. +

+

Parameters:
+ + +
void 
+
+
Returns:
none
+
+

+ + + + +
+ + + + + + + + + +
void lcd_home ( void   ) 
+
+ + + + + +
+   + + +

+Set cursor to home position. +

+

Parameters:
+ + +
void 
+
+
Returns:
none
+
+

+ + + + +
+ + + + + + + + + + + + + + + + + + +
void lcd_gotoxy ( uint8_t  x,
uint8_t  y
) 
+
+ + + + + +
+   + + +

+Set cursor to specified position. +

+

Parameters:
+ + + +
x horizontal position
+ (0: left most position)
y vertical position
+ (0: first line)
+
+
Returns:
none
+
+

+ + + + +
+ + + + + + + + + +
void lcd_putc ( char  c  ) 
+
+ + + + + +
+   + + +

+Display character at current cursor position. +

+

Parameters:
+ + +
c character to be displayed
+
+
Returns:
none
+
+

+ + + + +
+ + + + + + + + + +
void lcd_puts ( const char *  s  ) 
+
+ + + + + +
+   + + +

+Display string without auto linefeed. +

+

Parameters:
+ + +
s string to be displayed
+
+
Returns:
none
+
+

+ + + + +
+ + + + + + + + + +
void lcd_puts_p ( const char *  progmem_s  ) 
+
+ + + + + +
+   + + +

+Display string from program memory without auto linefeed. +

+

Parameters:
+ + +
s string from program memory be be displayed
+
+
Returns:
none
+
See also:
lcd_puts_P
+
+

+ + + + +
+ + + + + + + + + +
void lcd_command ( uint8_t  cmd  ) 
+
+ + + + + +
+   + + +

+Send LCD controller instruction command. +

+

Parameters:
+ + +
cmd instruction to send to LCD controller, see HD44780 data sheet
+
+
Returns:
none
+
+

+ + + + +
+ + + + + + + + + +
void lcd_data ( uint8_t  data  ) 
+
+ + + + + +
+   + + +

+Send data byte to LCD controller. +

+Similar to lcd_putc(), but without interpreting LF

Parameters:
+ + +
data byte to send to LCD controller, see HD44780 data sheet
+
+
Returns:
none
+
+

Generated on Mon Jan 30 20:50:15 2006 for AVR-GCC libraries by  + +doxygen 1.4.5
+ + diff --git a/avr/tmp/lcd.c b/avr/tmp/lcd.c new file mode 100644 index 00000000..edaf65fa --- /dev/null +++ b/avr/tmp/lcd.c @@ -0,0 +1,609 @@ +/**************************************************************************** + Title : HD44780U LCD library + Author: Peter Fleury http://jump.to/fleury + File: $Id: lcd.c,v 1.14.2.1 2006/01/29 12:16:41 peter Exp $ + Software: AVR-GCC 3.3 + Target: any AVR device, memory mapped mode only for AT90S4414/8515/Mega + + DESCRIPTION + Basic routines for interfacing a HD44780U-based text lcd display + + Originally based on Volker Oth's lcd library, + changed lcd_init(), added additional constants for lcd_command(), + added 4-bit I/O mode, improved and optimized code. + + Library can be operated in memory mapped mode (LCD_IO_MODE=0) or in + 4-bit IO port mode (LCD_IO_MODE=1). 8-bit IO port mode not supported. + + Memory mapped mode compatible with Kanda STK200, but supports also + generation of R/W signal through A8 address line. + + USAGE + See the C include lcd.h file for a description of each function + +*****************************************************************************/ +#include +#include +#include +#include "lcd.h" + + + +/* +** constants/macros +*/ +#define DDR(x) (*(&x - 1)) /* address of data direction register of port x */ +#if defined(__AVR_ATmega64__) || defined(__AVR_ATmega128__) + /* on ATmega64/128 PINF is on port 0x00 and not 0x60 */ + #define PIN(x) ( &PORTF==&(x) ? _SFR_IO8(0x00) : (*(&x - 2)) ) +#else + #define PIN(x) (*(&x - 2)) /* address of input register of port x */ +#endif + + +#if LCD_IO_MODE +#define lcd_e_delay() __asm__ __volatile__( "rjmp 1f\n 1:" ); +#define lcd_e_high() LCD_E_PORT |= _BV(LCD_E_PIN); +#define lcd_e_low() LCD_E_PORT &= ~_BV(LCD_E_PIN); +#define lcd_e_toggle() toggle_e() +#define lcd_rw_high() LCD_RW_PORT |= _BV(LCD_RW_PIN) +#define lcd_rw_low() LCD_RW_PORT &= ~_BV(LCD_RW_PIN) +#define lcd_rs_high() LCD_RS_PORT |= _BV(LCD_RS_PIN) +#define lcd_rs_low() LCD_RS_PORT &= ~_BV(LCD_RS_PIN) +#endif + +#if LCD_IO_MODE +#if LCD_LINES==1 +#define LCD_FUNCTION_DEFAULT LCD_FUNCTION_4BIT_1LINE +#else +#define LCD_FUNCTION_DEFAULT LCD_FUNCTION_4BIT_2LINES +#endif +#else +#if LCD_LINES==1 +#define LCD_FUNCTION_DEFAULT LCD_FUNCTION_8BIT_1LINE +#else +#define LCD_FUNCTION_DEFAULT LCD_FUNCTION_8BIT_2LINES +#endif +#endif + +#if LCD_CONTROLLER_KS0073 +#if LCD_LINES==4 + +#define KS0073_EXTENDED_FUNCTION_REGISTER_ON 0x24 /* |0|010|0100 4-bit mode extension-bit RE = 1 */ +#define KS0073_EXTENDED_FUNCTION_REGISTER_OFF 0x20 /* |0|000|1001 4 lines mode */ +#define KS0073_4LINES_MODE 0x09 /* |0|001|0000 4-bit mode, extension-bit RE = 0 */ + +#endif +#endif + +/* +** function prototypes +*/ +#if LCD_IO_MODE +static void toggle_e(void); +#endif + +/* +** local functions +*/ + + + +/************************************************************************* + delay loop for small accurate delays: 16-bit counter, 4 cycles/loop +*************************************************************************/ +static inline void _delayFourCycles(unsigned int __count) +{ + if ( __count == 0 ) + __asm__ __volatile__( "rjmp 1f\n 1:" ); // 2 cycles + else + __asm__ __volatile__ ( + "1: sbiw %0,1" "\n\t" + "brne 1b" // 4 cycles/loop + : "=w" (__count) + : "0" (__count) + ); +} + + +/************************************************************************* +delay for a minimum of microseconds +the number of loops is calculated at compile-time from MCU clock frequency +*************************************************************************/ +#define delay(us) _delayFourCycles( ( ( 1*(XTAL/4000) )*us)/1000 ) + + +#if LCD_IO_MODE +/* toggle Enable Pin to initiate write */ +static void toggle_e(void) +{ + lcd_e_high(); + lcd_e_delay(); + lcd_e_low(); +} +#endif + + +/************************************************************************* +Low-level function to write byte to LCD controller +Input: data byte to write to LCD + rs 1: write data + 0: write instruction +Returns: none +*************************************************************************/ +#if LCD_IO_MODE +static void lcd_write(uint8_t data,uint8_t rs) +{ + unsigned char dataBits ; + + + if (rs) { /* write data (RS=1, RW=0) */ + lcd_rs_high(); + } else { /* write instruction (RS=0, RW=0) */ + lcd_rs_low(); + } + lcd_rw_low(); + + if ( ( &LCD_DATA0_PORT == &LCD_DATA1_PORT) && ( &LCD_DATA1_PORT == &LCD_DATA2_PORT ) && ( &LCD_DATA2_PORT == &LCD_DATA3_PORT ) + && (LCD_DATA0_PIN == 0) && (LCD_DATA1_PIN == 1) && (LCD_DATA2_PIN == 2) && (LCD_DATA3_PIN == 3) ) + { + /* configure data pins as output */ + DDR(LCD_DATA0_PORT) |= 0x0F; + + /* output high nibble first */ + dataBits = LCD_DATA0_PORT & 0xF0; + LCD_DATA0_PORT = dataBits |((data>>4)&0x0F); + lcd_e_toggle(); + + /* output low nibble */ + LCD_DATA0_PORT = dataBits | (data&0x0F); + lcd_e_toggle(); + + /* all data pins high (inactive) */ + LCD_DATA0_PORT = dataBits | 0x0F; + } + else + { + /* configure data pins as output */ + DDR(LCD_DATA0_PORT) |= _BV(LCD_DATA0_PIN); + DDR(LCD_DATA1_PORT) |= _BV(LCD_DATA1_PIN); + DDR(LCD_DATA2_PORT) |= _BV(LCD_DATA2_PIN); + DDR(LCD_DATA3_PORT) |= _BV(LCD_DATA3_PIN); + + /* output high nibble first */ + LCD_DATA3_PORT &= ~_BV(LCD_DATA3_PIN); + LCD_DATA2_PORT &= ~_BV(LCD_DATA2_PIN); + LCD_DATA1_PORT &= ~_BV(LCD_DATA1_PIN); + LCD_DATA0_PORT &= ~_BV(LCD_DATA0_PIN); + if(data & 0x80) LCD_DATA3_PORT |= _BV(LCD_DATA3_PIN); + if(data & 0x40) LCD_DATA2_PORT |= _BV(LCD_DATA2_PIN); + if(data & 0x20) LCD_DATA1_PORT |= _BV(LCD_DATA1_PIN); + if(data & 0x10) LCD_DATA0_PORT |= _BV(LCD_DATA0_PIN); + lcd_e_toggle(); + + /* output low nibble */ + LCD_DATA3_PORT &= ~_BV(LCD_DATA3_PIN); + LCD_DATA2_PORT &= ~_BV(LCD_DATA2_PIN); + LCD_DATA1_PORT &= ~_BV(LCD_DATA1_PIN); + LCD_DATA0_PORT &= ~_BV(LCD_DATA0_PIN); + if(data & 0x08) LCD_DATA3_PORT |= _BV(LCD_DATA3_PIN); + if(data & 0x04) LCD_DATA2_PORT |= _BV(LCD_DATA2_PIN); + if(data & 0x02) LCD_DATA1_PORT |= _BV(LCD_DATA1_PIN); + if(data & 0x01) LCD_DATA0_PORT |= _BV(LCD_DATA0_PIN); + lcd_e_toggle(); + + /* all data pins high (inactive) */ + LCD_DATA0_PORT |= _BV(LCD_DATA0_PIN); + LCD_DATA1_PORT |= _BV(LCD_DATA1_PIN); + LCD_DATA2_PORT |= _BV(LCD_DATA2_PIN); + LCD_DATA3_PORT |= _BV(LCD_DATA3_PIN); + } +} +#else +#define lcd_write(d,rs) if (rs) *(volatile uint8_t*)(LCD_IO_DATA) = d; else *(volatile uint8_t*)(LCD_IO_FUNCTION) = d; +/* rs==0 -> write instruction to LCD_IO_FUNCTION */ +/* rs==1 -> write data to LCD_IO_DATA */ +#endif + + +/************************************************************************* +Low-level function to read byte from LCD controller +Input: rs 1: read data + 0: read busy flag / address counter +Returns: byte read from LCD controller +*************************************************************************/ +#if LCD_IO_MODE +static uint8_t lcd_read(uint8_t rs) +{ + uint8_t data; + + + if (rs) + lcd_rs_high(); /* RS=1: read data */ + else + lcd_rs_low(); /* RS=0: read busy flag */ + lcd_rw_high(); /* RW=1 read mode */ + + if ( ( &LCD_DATA0_PORT == &LCD_DATA1_PORT) && ( &LCD_DATA1_PORT == &LCD_DATA2_PORT ) && ( &LCD_DATA2_PORT == &LCD_DATA3_PORT ) + && ( LCD_DATA0_PIN == 0 )&& (LCD_DATA1_PIN == 1) && (LCD_DATA2_PIN == 2) && (LCD_DATA3_PIN == 3) ) + { + DDR(LCD_DATA0_PORT) &= 0xF0; /* configure data pins as input */ + + lcd_e_high(); + lcd_e_delay(); + data = PIN(LCD_DATA0_PORT) << 4; /* read high nibble first */ + lcd_e_low(); + + lcd_e_delay(); /* Enable 500ns low */ + + lcd_e_high(); + lcd_e_delay(); + data |= PIN(LCD_DATA0_PORT)&0x0F; /* read low nibble */ + lcd_e_low(); + } + else + { + /* configure data pins as input */ + DDR(LCD_DATA0_PORT) &= ~_BV(LCD_DATA0_PIN); + DDR(LCD_DATA1_PORT) &= ~_BV(LCD_DATA1_PIN); + DDR(LCD_DATA2_PORT) &= ~_BV(LCD_DATA2_PIN); + DDR(LCD_DATA3_PORT) &= ~_BV(LCD_DATA3_PIN); + + /* read high nibble first */ + lcd_e_high(); + lcd_e_delay(); + data = 0; + if ( PIN(LCD_DATA0_PORT) & _BV(LCD_DATA0_PIN) ) data |= 0x10; + if ( PIN(LCD_DATA1_PORT) & _BV(LCD_DATA1_PIN) ) data |= 0x20; + if ( PIN(LCD_DATA2_PORT) & _BV(LCD_DATA2_PIN) ) data |= 0x40; + if ( PIN(LCD_DATA3_PORT) & _BV(LCD_DATA3_PIN) ) data |= 0x80; + lcd_e_low(); + + lcd_e_delay(); /* Enable 500ns low */ + + /* read low nibble */ + lcd_e_high(); + lcd_e_delay(); + if ( PIN(LCD_DATA0_PORT) & _BV(LCD_DATA0_PIN) ) data |= 0x01; + if ( PIN(LCD_DATA1_PORT) & _BV(LCD_DATA1_PIN) ) data |= 0x02; + if ( PIN(LCD_DATA2_PORT) & _BV(LCD_DATA2_PIN) ) data |= 0x04; + if ( PIN(LCD_DATA3_PORT) & _BV(LCD_DATA3_PIN) ) data |= 0x08; + lcd_e_low(); + } + return data; +} +#else +#define lcd_read(rs) (rs) ? *(volatile uint8_t*)(LCD_IO_DATA+LCD_IO_READ) : *(volatile uint8_t*)(LCD_IO_FUNCTION+LCD_IO_READ) +/* rs==0 -> read instruction from LCD_IO_FUNCTION */ +/* rs==1 -> read data from LCD_IO_DATA */ +#endif + + +/************************************************************************* +loops while lcd is busy, returns address counter +*************************************************************************/ +static uint8_t lcd_waitbusy(void) + +{ + register uint8_t c; + + /* wait until busy flag is cleared */ + while ( (c=lcd_read(0)) & (1<= LCD_START_LINE2) && (pos < LCD_START_LINE3) ) + addressCounter = LCD_START_LINE3; + else if ( (pos >= LCD_START_LINE3) && (pos < LCD_START_LINE4) ) + addressCounter = LCD_START_LINE4; + else + addressCounter = LCD_START_LINE1; +#else + if ( pos < LCD_START_LINE3 ) + addressCounter = LCD_START_LINE2; + else if ( (pos >= LCD_START_LINE2) && (pos < LCD_START_LINE4) ) + addressCounter = LCD_START_LINE3; + else if ( (pos >= LCD_START_LINE3) && (pos < LCD_START_LINE2) ) + addressCounter = LCD_START_LINE4; + else + addressCounter = LCD_START_LINE1; +#endif +#endif + lcd_command((1<>4; + LCD_DATA0_PORT |= _BV(LCD_DATA0_PIN); // _BV(LCD_FUNCTION_8BIT)>>4; + lcd_e_toggle(); + delay(4992); /* delay, busy flag can't be checked here */ + + /* repeat last command */ + lcd_e_toggle(); + delay(64); /* delay, busy flag can't be checked here */ + + /* repeat last command a third time */ + lcd_e_toggle(); + delay(64); /* delay, busy flag can't be checked here */ + + /* now configure for 4bit mode */ + LCD_DATA0_PORT &= ~_BV(LCD_DATA0_PIN); // LCD_FUNCTION_4BIT_1LINE>>4 + lcd_e_toggle(); + delay(64); /* some displays need this additional delay */ + + /* from now the LCD only accepts 4 bit I/O, we can use lcd_command() */ +#else + /* + * Initialize LCD to 8 bit memory mapped mode + */ + + /* enable external SRAM (memory mapped lcd) and one wait state */ + MCUCR = _BV(SRE) | _BV(SRW); + + /* reset LCD */ + delay(16000); /* wait 16ms after power-on */ + lcd_write(LCD_FUNCTION_8BIT_1LINE,0); /* function set: 8bit interface */ + delay(4992); /* wait 5ms */ + lcd_write(LCD_FUNCTION_8BIT_1LINE,0); /* function set: 8bit interface */ + delay(64); /* wait 64us */ + lcd_write(LCD_FUNCTION_8BIT_1LINE,0); /* function set: 8bit interface */ + delay(64); /* wait 64us */ +#endif + +#if KS0073_4LINES_MODE + /* Display with KS0073 controller requires special commands for enabling 4 line mode */ + lcd_command(KS0073_EXTENDED_FUNCTION_REGISTER_ON); + lcd_command(KS0073_4LINES_MODE); + lcd_command(KS0073_EXTENDED_FUNCTION_REGISTER_OFF); +#else + lcd_command(LCD_FUNCTION_DEFAULT); /* function set: display lines */ +#endif + lcd_command(LCD_DISP_OFF); /* display off */ + lcd_clrscr(); /* display clear */ + lcd_command(LCD_MODE_DEFAULT); /* set entry mode */ + lcd_command(dispAttr); /* display/cursor control */ + +}/* lcd_init */ diff --git a/avr/tmp/lcd.h b/avr/tmp/lcd.h new file mode 100644 index 00000000..9ec85b5f --- /dev/null +++ b/avr/tmp/lcd.h @@ -0,0 +1,265 @@ +#ifndef LCD_H +#define LCD_H +/************************************************************************* + Title : C include file for the HD44780U LCD library (lcd.c) + Author: Peter Fleury http://jump.to/fleury + File: $Id: lcd.h,v 1.13.2.2 2006/01/30 19:51:33 peter Exp $ + Software: AVR-GCC 3.3 + Hardware: any AVR device, memory mapped mode only for AT90S4414/8515/Mega +***************************************************************************/ + +/** + @defgroup pfleury_lcd LCD library + @code #include @endcode + + @brief Basic routines for interfacing a HD44780U-based text LCD display + + Originally based on Volker Oth's LCD library, + changed lcd_init(), added additional constants for lcd_command(), + added 4-bit I/O mode, improved and optimized code. + + Library can be operated in memory mapped mode (LCD_IO_MODE=0) or in + 4-bit IO port mode (LCD_IO_MODE=1). 8-bit IO port mode not supported. + + Memory mapped mode compatible with Kanda STK200, but supports also + generation of R/W signal through A8 address line. + + @author Peter Fleury pfleury@gmx.ch http://jump.to/fleury + + @see The chapter Interfacing a HD44780 Based LCD to an AVR + on my home page. + +*/ + +/*@{*/ + +#if (__GNUC__ * 100 + __GNUC_MINOR__) < 303 +#error "This library requires AVR-GCC 3.3 or later, update to newer AVR-GCC compiler !" +#endif + +#include +#include + +/** + * @name Definitions for MCU Clock Frequency + * Adapt the MCU clock frequency in Hz to your target. + */ +#define XTAL 4000000 /**< clock frequency in Hz, used to calculate delay timer */ + + +/** + * @name Definition for LCD controller type + * Use 0 for HD44780 controller, change to 1 for displays with KS0073 controller. + */ +#define LCD_CONTROLLER_KS0073 0 /**< Use 0 for HD44780 controller, 1 for KS0073 controller */ + +/** + * @name Definitions for Display Size + * Change these definitions to adapt setting to your display + */ +#define LCD_LINES 4 /**< number of visible lines of the display */ +#define LCD_DISP_LENGTH 20 /**< visibles characters per line of the display */ +#define LCD_LINE_LENGTH 0x40 /**< internal line length of the display */ +#define LCD_START_LINE1 0x00 /**< DDRAM address of first char of line 1 */ +#define LCD_START_LINE2 0x40 /**< DDRAM address of first char of line 2 */ +#define LCD_START_LINE3 0x14 /**< DDRAM address of first char of line 3 */ +#define LCD_START_LINE4 0x54 /**< DDRAM address of first char of line 4 */ +#define LCD_WRAP_LINES 0 /**< 0: no wrap, 1: wrap at end of visibile line */ + + +#define LCD_IO_MODE 1 /**< 0: memory mapped mode, 1: IO port mode */ +#if LCD_IO_MODE +/** + * @name Definitions for 4-bit IO mode + * Change LCD_PORT if you want to use a different port for the LCD pins. + * + * The four LCD data lines and the three control lines RS, RW, E can be on the + * same port or on different ports. + * Change LCD_RS_PORT, LCD_RW_PORT, LCD_E_PORT if you want the control lines on + * different ports. + * + * Normally the four data lines should be mapped to bit 0..3 on one port, but it + * is possible to connect these data lines in different order or even on different + * ports by adapting the LCD_DATAx_PORT and LCD_DATAx_PIN definitions. + * + */ +#define LCD_PORT PORTD /**< port for the LCD lines */ +#define LCD_DATA0_PORT LCD_PORT /**< port for 4bit data bit 0 */ +#define LCD_DATA1_PORT LCD_PORT /**< port for 4bit data bit 1 */ +#define LCD_DATA2_PORT LCD_PORT /**< port for 4bit data bit 2 */ +#define LCD_DATA3_PORT LCD_PORT /**< port for 4bit data bit 3 */ +#define LCD_DATA0_PIN 0 /**< pin for 4bit data bit 0 */ +#define LCD_DATA1_PIN 1 /**< pin for 4bit data bit 1 */ +#define LCD_DATA2_PIN 2 /**< pin for 4bit data bit 2 */ +#define LCD_DATA3_PIN 3 /**< pin for 4bit data bit 3 */ +#define LCD_RS_PORT LCD_PORT /**< port for RS line */ +#define LCD_RS_PIN 5 /**< pin for RS line */ +#define LCD_RW_PORT LCD_PORT /**< port for RW line */ +#define LCD_RW_PIN 7 /**< pin for RW line */ +#define LCD_E_PORT LCD_PORT /**< port for Enable line */ +#define LCD_E_PIN 4 /**< pin for Enable line */ + +#elif defined(__AVR_AT90S4414__) || defined(__AVR_AT90S8515__) || defined(__AVR_ATmega64__) || \ + defined(__AVR_ATmega8515__)|| defined(__AVR_ATmega103__) || defined(__AVR_ATmega128__) || \ + defined(__AVR_ATmega161__) || defined(__AVR_ATmega162__) +/* + * memory mapped mode is only supported when the device has an external data memory interface + */ +#define LCD_IO_DATA 0xC000 /* A15=E=1, A14=RS=1 */ +#define LCD_IO_FUNCTION 0x8000 /* A15=E=1, A14=RS=0 */ +#define LCD_IO_READ 0x0100 /* A8 =R/W=1 (R/W: 1=Read, 0=Write */ +#else +#error "external data memory interface not available for this device, use 4-bit IO port mode" + +#endif + + +/** + * @name Definitions for LCD command instructions + * The constants define the various LCD controller instructions which can be passed to the + * function lcd_command(), see HD44780 data sheet for a complete description. + */ + +/* instruction register bit positions, see HD44780U data sheet */ +#define LCD_CLR 0 /* DB0: clear display */ +#define LCD_HOME 1 /* DB1: return to home position */ +#define LCD_ENTRY_MODE 2 /* DB2: set entry mode */ +#define LCD_ENTRY_INC 1 /* DB1: 1=increment, 0=decrement */ +#define LCD_ENTRY_SHIFT 0 /* DB2: 1=display shift on */ +#define LCD_ON 3 /* DB3: turn lcd/cursor on */ +#define LCD_ON_DISPLAY 2 /* DB2: turn display on */ +#define LCD_ON_CURSOR 1 /* DB1: turn cursor on */ +#define LCD_ON_BLINK 0 /* DB0: blinking cursor ? */ +#define LCD_MOVE 4 /* DB4: move cursor/display */ +#define LCD_MOVE_DISP 3 /* DB3: move display (0-> cursor) ? */ +#define LCD_MOVE_RIGHT 2 /* DB2: move right (0-> left) ? */ +#define LCD_FUNCTION 5 /* DB5: function set */ +#define LCD_FUNCTION_8BIT 4 /* DB4: set 8BIT mode (0->4BIT mode) */ +#define LCD_FUNCTION_2LINES 3 /* DB3: two lines (0->one line) */ +#define LCD_FUNCTION_10DOTS 2 /* DB2: 5x10 font (0->5x7 font) */ +#define LCD_CGRAM 6 /* DB6: set CG RAM address */ +#define LCD_DDRAM 7 /* DB7: set DD RAM address */ +#define LCD_BUSY 7 /* DB7: LCD is busy */ + +/* set entry mode: display shift on/off, dec/inc cursor move direction */ +#define LCD_ENTRY_DEC 0x04 /* display shift off, dec cursor move dir */ +#define LCD_ENTRY_DEC_SHIFT 0x05 /* display shift on, dec cursor move dir */ +#define LCD_ENTRY_INC_ 0x06 /* display shift off, inc cursor move dir */ +#define LCD_ENTRY_INC_SHIFT 0x07 /* display shift on, inc cursor move dir */ + +/* display on/off, cursor on/off, blinking char at cursor position */ +#define LCD_DISP_OFF 0x08 /* display off */ +#define LCD_DISP_ON 0x0C /* display on, cursor off */ +#define LCD_DISP_ON_BLINK 0x0D /* display on, cursor off, blink char */ +#define LCD_DISP_ON_CURSOR 0x0E /* display on, cursor on */ +#define LCD_DISP_ON_CURSOR_BLINK 0x0F /* display on, cursor on, blink char */ + +/* move cursor/shift display */ +#define LCD_MOVE_CURSOR_LEFT 0x10 /* move cursor left (decrement) */ +#define LCD_MOVE_CURSOR_RIGHT 0x14 /* move cursor right (increment) */ +#define LCD_MOVE_DISP_LEFT 0x18 /* shift display left */ +#define LCD_MOVE_DISP_RIGHT 0x1C /* shift display right */ + +/* function set: set interface data length and number of display lines */ +#define LCD_FUNCTION_4BIT_1LINE 0x20 /* 4-bit interface, single line, 5x7 dots */ +#define LCD_FUNCTION_4BIT_2LINES 0x28 /* 4-bit interface, dual line, 5x7 dots */ +#define LCD_FUNCTION_8BIT_1LINE 0x30 /* 8-bit interface, single line, 5x7 dots */ +#define LCD_FUNCTION_8BIT_2LINES 0x38 /* 8-bit interface, dual line, 5x7 dots */ + + +#define LCD_MODE_DEFAULT ((1< +# to submit bug reports. +#AVRDUDE_VERBOSE = -v -v + +AVRDUDE_FLAGS = -p $(MCU) -c $(AVRDUDE_PROGRAMMER) +AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY) +AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE) +AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER) + + + +# --------------------------------------------------------------------------- + +# Define directories, if needed. +#DIRAVR = c:/winavr +#DIRAVRBIN = $(DIRAVR)/bin +#DIRAVRUTILS = $(DIRAVR)/utils/bin +#DIRINC = . +#DIRLIB = $(DIRAVR)/avr/lib + + +# Define programs and commands. +SHELL = sh +CC = avr-gcc +OBJCOPY = avr-objcopy +OBJDUMP = avr-objdump +SIZE = avr-size +NM = avr-nm +AVRDUDE = avrdude +REMOVE = rm -f +COPY = cp + + + + +# Define Messages +# English +MSG_ERRORS_NONE = Errors: none +MSG_BEGIN = -------- begin -------- +MSG_END = -------- end -------- +MSG_SIZE_BEFORE = Size before: +MSG_SIZE_AFTER = Size after: +MSG_COFF = Converting to AVR COFF: +MSG_EXTENDED_COFF = Converting to AVR Extended COFF: +MSG_FLASH = Creating load file for Flash: +MSG_EEPROM = Creating load file for EEPROM: +MSG_EXTENDED_LISTING = Creating Extended Listing: +MSG_SYMBOL_TABLE = Creating Symbol Table: +MSG_LINKING = Linking: +MSG_COMPILING = Compiling: +MSG_ASSEMBLING = Assembling: +MSG_CLEANING = Cleaning project: + + + + +# Define all object files. +OBJ = $(SRC:.c=.o) $(ASRC:.S=.o) + +# Define all listing files. +LST = $(ASRC:.S=.lst) $(SRC:.c=.lst) + + +# Compiler flags to generate dependency files. +GENDEPFLAGS = -Wp,-M,-MP,-MT,$(*F).o,-MF,.dep/$(@F).d + + +# Combine all necessary flags and optional flags. +# Add target processor to flags. +ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS) +ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS) + + + + + +# Default target. +all: begin gccversion sizebefore build sizeafter finished end + +build: elf hex eep lss sym + +elf: $(TARGET).elf +hex: $(TARGET).hex +eep: $(TARGET).eep +lss: $(TARGET).lss +sym: $(TARGET).sym + + + +# Eye candy. +# AVR Studio 3.x does not check make's exit code but relies on +# the following magic strings to be generated by the compile job. +begin: + @echo + @echo $(MSG_BEGIN) + +finished: + @echo $(MSG_ERRORS_NONE) + +end: + @echo $(MSG_END) + @echo + + +# Display size of file. +HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex +ELFSIZE = $(SIZE) -A $(TARGET).elf +sizebefore: + @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); echo; fi + +sizeafter: + @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); echo; fi + + + +# Display compiler version information. +gccversion : + @$(CC) --version + + + +# Program the device. +program: $(TARGET).hex $(TARGET).eep + $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM) + + + + +# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB. +COFFCONVERT=$(OBJCOPY) --debugging \ +--change-section-address .data-0x800000 \ +--change-section-address .bss-0x800000 \ +--change-section-address .noinit-0x800000 \ +--change-section-address .eeprom-0x810000 + + +coff: $(TARGET).elf + @echo + @echo $(MSG_COFF) $(TARGET).cof + $(COFFCONVERT) -O coff-avr $< $(TARGET).cof + + +extcoff: $(TARGET).elf + @echo + @echo $(MSG_EXTENDED_COFF) $(TARGET).cof + $(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof + + + +# Create final output files (.hex, .eep) from ELF output file. +%.hex: %.elf + @echo + @echo $(MSG_FLASH) $@ + $(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@ + +%.eep: %.elf + @echo + @echo $(MSG_EEPROM) $@ + -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \ + --change-section-lma .eeprom=0 -O $(FORMAT) $< $@ + +# Create extended listing file from ELF output file. +%.lss: %.elf + @echo + @echo $(MSG_EXTENDED_LISTING) $@ + $(OBJDUMP) -h -S $< > $@ + +# Create a symbol table from ELF output file. +%.sym: %.elf + @echo + @echo $(MSG_SYMBOL_TABLE) $@ + $(NM) -n $< > $@ + + + +# Link: create ELF output file from object files. +.SECONDARY : $(TARGET).elf +.PRECIOUS : $(OBJ) +%.elf: $(OBJ) + @echo + @echo $(MSG_LINKING) $@ + $(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS) + + +# Compile: create object files from C source files. +%.o : %.c + @echo + @echo $(MSG_COMPILING) $< + $(CC) -c $(ALL_CFLAGS) $< -o $@ + + +# Compile: create assembler files from C source files. +%.s : %.c + $(CC) -S $(ALL_CFLAGS) $< -o $@ + + +# Assemble: create object files from assembler source files. +%.o : %.S + @echo + @echo $(MSG_ASSEMBLING) $< + $(CC) -c $(ALL_ASFLAGS) $< -o $@ + + + +# Target: clean project. +clean: begin clean_list finished end + +clean_list : + @echo + @echo $(MSG_CLEANING) + $(REMOVE) $(TARGET).hex + $(REMOVE) $(TARGET).eep + $(REMOVE) $(TARGET).obj + $(REMOVE) $(TARGET).cof + $(REMOVE) $(TARGET).elf + $(REMOVE) $(TARGET).map + $(REMOVE) $(TARGET).obj + $(REMOVE) $(TARGET).a90 + $(REMOVE) $(TARGET).sym + $(REMOVE) $(TARGET).lnk + $(REMOVE) $(TARGET).lss + $(REMOVE) $(OBJ) + $(REMOVE) $(LST) + $(REMOVE) $(SRC:.c=.s) + $(REMOVE) $(SRC:.c=.d) + $(REMOVE) .dep/* + + + +# Include the dependency files. +-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*) + + +# Listing of phony targets. +.PHONY : all begin finish end sizebefore sizeafter gccversion \ +build elf hex eep lss sym coff extcoff \ +clean clean_list program + diff --git a/avr/tmp/test_lcd.c b/avr/tmp/test_lcd.c new file mode 100644 index 00000000..1f933b24 --- /dev/null +++ b/avr/tmp/test_lcd.c @@ -0,0 +1,167 @@ +/************************************************************************* +Title: testing output to a HD44780 based LCD display. +Author: Peter Fleury http://jump.to/fleury +File: $Id: test_lcd.c,v 1.6 2004/12/10 13:53:59 peter Exp $ +Software: AVR-GCC 3.3 +Hardware: HD44780 compatible LCD text display + ATS90S8515/ATmega if memory-mapped LCD interface is used + any AVR with 7 free I/O pins if 4-bit IO port mode is used +**************************************************************************/ +#include +#include +#include +#include "lcd.h" + + +/* +** constant definitions +*/ +static const PROGMEM unsigned char copyRightChar[] = +{ + 0x07, 0x08, 0x13, 0x14, 0x14, 0x13, 0x08, 0x07, + 0x00, 0x10, 0x08, 0x08, 0x08, 0x08, 0x10, 0x00 +}; + + +/* +** function prototypes +*/ +void wait_until_key_pressed(void); + + +void wait_until_key_pressed(void) +{ + unsigned char temp1, temp2; + unsigned int i; + + do { + temp1 = PINC; // read input + for(i=0;i<65535;i++); + temp2 = PINC; // read input + temp1 = (temp1 & temp2); // debounce input + } while ( temp1 & _BV(PINC4) ); + + loop_until_bit_is_set(PINC,PINC4); /* wait until key is released */ +} + + +int main(void) +{ + char buffer[7]; + int num=134; + unsigned char i; + + + DDRD &=~ (1 << PC4); /* Pin PC4 input */ + PORTD |= (1 << PC4); /* Pin PC4 pull-up enabled */ + + + /* initialize display, cursor off */ + lcd_init(LCD_DISP_ON); + + for (;;) { /* loop forever */ + /* + * Test 1: write text to display + */ + + /* clear display and home cursor */ + lcd_clrscr(); + + /* put string to display (line 1) with linefeed */ + lcd_puts("LCD Test Line 1\n"); + + /* cursor is now on second line, write second line */ + lcd_puts("Line 2"); + + /* move cursor to position 8 on line 2 */ + lcd_gotoxy(7,1); + + /* write single char to display */ + lcd_putc(':'); + + /* wait until push button PD2 (INT0) is pressed */ + wait_until_key_pressed(); + + + /* + * Test 2: use lcd_command() to turn on cursor + */ + + /* turn on cursor */ + lcd_command(LCD_DISP_ON_CURSOR); + + /* put string */ + lcd_puts( "CurOn"); + + /* wait until push button PD2 (INT0) is pressed */ + wait_until_key_pressed(); + + + /* + * Test 3: display shift + */ + + lcd_clrscr(); /* clear display home cursor */ + + /* put string from program memory to display */ + lcd_puts_P( "Line 1 longer than 14 characters\n" ); + lcd_puts_P( "Line 2 longer than 14 characters" ); + + /* move BOTH lines one position to the left */ + lcd_command(LCD_MOVE_DISP_LEFT); + + /* wait until push button PD2 (INT0) is pressed */ + wait_until_key_pressed(); + + /* turn off cursor */ + lcd_command(LCD_DISP_ON); + + + /* + * Test: Display integer values + */ + + lcd_clrscr(); /* clear display home cursor */ + + /* convert interger into string */ + itoa( num , buffer, 10); + + /* put converted string to display */ + lcd_puts(buffer); + + /* wait until push button PD2 (INT0) is pressed */ + wait_until_key_pressed(); + + + /* + * Test: Display userdefined characters + */ + + lcd_clrscr(); /* clear display home cursor */ + + lcd_puts("Copyright: "); + + /* + * load two userdefined characters from program memory + * into LCD controller CG RAM location 0 and 1 + */ + lcd_command(_BV(LCD_CGRAM)); /* set CG RAM start address 0 */ + for(i=0; i<16; i++) + { + lcd_data(pgm_read_byte_near(©RightChar[i])); + } + + /* move cursor to position 0 on line 2 */ + /* Note: this switched back to DD RAM adresses */ + lcd_gotoxy(0,1); + + /* display user defined (c), built using two user defined chars */ + lcd_putc(0); + lcd_putc(1); + + + /* wait until push button PD2 (INT0) is pressed */ + wait_until_key_pressed(); + + } +} diff --git a/avr/tthello.c b/avr/tthello.c new file mode 100644 index 00000000..68aa6aa2 --- /dev/null +++ b/avr/tthello.c @@ -0,0 +1,35 @@ +#include +#include +#include +#include + +void wait_until_key_pressed(void) +{ + unsigned char temp1, temp2; + unsigned int i; + + do { + temp1 = PINC; // read input + for(i=0;i<65535;i++); + temp2 = PINC; // read input + temp1 = (temp1 & temp2); // debounce input + } while ( temp1 & _BV(PINC4) ); + + loop_until_bit_is_set(PINC,PINC4); /* wait until key is released */ +} + +int main (void) +{ + // configure to read center press on joy switch + DDRC &=~ (1 << PC4); /* Pin PC4 input */ + PORTC |= (1 << PC4); /* Pin PC4 pull-up enabled */ + + for (;;) { /* loop forever */ + // turn on LCD backlight LED + PORTD = 0xff; + wait_until_key_pressed(); + PORTD = 0; + wait_until_key_pressed(); + } + return 0; +} -- 2.30.2