removed garbage
This commit is contained in:
parent
36fadfbb29
commit
c61f70d778
4 changed files with 0 additions and 1031 deletions
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@ -1,83 +0,0 @@
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# Hey Emacs, this is a -*- makefile -*-
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#----------------------------------------------------------------------------
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# Makefile for the avr-gcc Toolchain
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#
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# by Steffen Vogel <post@steffenvogel.de>
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#
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#----------------------------------------------------------------------------
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# Target Options
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TARGET = main
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OBJS = $(TARGET).o ds1820.o lcd.o
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# Target
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MCU = atmega16
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F_CPU = 14745000
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# Programming
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AVRDUDE_FLAGS = -p m16 -c usbasp -P usb
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HFUSE=
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LFUSE=
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DEFINES = -DF_CPU=$(F_CPU) -DBAUD=115200
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WARNINGS = -Wall -Wextra
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CPPFLAGS += -MD -MP
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CXXFLAGS +=
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CFLAGS += -g -O2 -mmcu=$(MCU) $(DEFINES) $(WARNINGS)
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LDFLAGS += -Wl,-Map,$(TARGET).map -Wl,-u,vfprintf -lprintf_flt -lm
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# Tools
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AR = avr-ar
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AS = avr-as
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CC = avr-gcc
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CXX = avr-g++
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NM = avr-nm
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OBJCOPY = avr-objcopy
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OBJDUMP = avr-objdump
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SIZE = avr-size
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AVRDUDE = avrdude
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# Dependencies
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-include $(OBJS:.o=.d)
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# Default Target
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all: $(TARGET).hex $(TARGET).eep $(TARGET).lst
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$(TARGET).elf: $(OBJS)
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$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^
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%.lst: %.elf
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$(OBJDUMP) -h -S $< > $@
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%.hex: %.elf
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$(OBJCOPY) -j .text -j .data -O ihex $< $@
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%.eep: %.elf
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$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 -O ihex $< $@
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flash: $(TARGET).hex
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$(AVRDUDE) $(AVRDUDE_FLAGS) -U flash:w:$(TARGET).hex
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eeprom: $(TARGET).eep
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$(AVRDUDE) $(AVRDUDE_FLAGS) -U eeprom:w:$(TARGET).eep
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fuses:
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$(AVRDUDE) $(AVRDUDE_FLAGS) -U hfuse:w:$(HFUSE):m -U lfuse:w:$(LFUSE):m
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size: $(TARGET).elf
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$(SIZE) -A $(TARGET).elf --format=avr --mcu $(MCU) | tail -n +5
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$(NM) --print-size --size-sort --reverse-sort --radix=d main.elf --format=s | tail -n +5 | head -n 12
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clean:
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rm -f $(OBJS) $(OBJS:.o=.d)
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rm -f $(TARGET).elf
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rm -f $(TARGET).hex
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rm -f $(TARGET).eep
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rm -f $(TARGET).lst
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rm -f $(TARGET).map
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.PHONY: all size clean flash eeprom fuses
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632
src/ds1820/lcd.c
632
src/ds1820/lcd.c
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@ -1,632 +0,0 @@
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/****************************************************************************
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Title : HD44780U LCD library
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Author: Peter Fleury <pfleury@gmx.ch> http://jump.to/fleury
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File: $Id: lcd.c,v 1.14.2.1 2006/01/29 12:16:41 peter Exp $
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Software: AVR-GCC 3.3
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Target: any AVR device, memory mapped mode only for AT90S4414/8515/Mega
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DESCRIPTION
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Basic routines for interfacing a HD44780U-based text lcd display
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Originally based on Volker Oth's lcd library,
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changed lcd_init(), added additional constants for lcd_command(),
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added 4-bit I/O mode, improved and optimized code.
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Library can be operated in memory mapped mode (LCD_IO_MODE=0) or in
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4-bit IO port mode (LCD_IO_MODE=1). 8-bit IO port mode not supported.
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Memory mapped mode compatible with Kanda STK200, but supports also
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generation of R/W signal through A8 address line.
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USAGE
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See the C include lcd.h file for a description of each function
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*****************************************************************************/
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#include "lcd.h"
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/*
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** constants/macros
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*/
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#define DDR(x) (*(&x - 1)) /* address of data direction register of port x */
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#if defined(__AVR_ATmega64__) || defined(__AVR_ATmega128__)
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/* on ATmega64/128 PINF is on port 0x00 and not 0x60 */
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#define PIN(x) ( &PORTF==&(x) ? _SFR_IO8(0x00) : (*(&x - 2)) )
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#else
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#define PIN(x) (*(&x - 2)) /* address of input register of port x */
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#endif
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#if LCD_IO_MODE
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#define lcd_e_delay() __asm__ __volatile__( "rjmp 1f\n 1:" );
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#define lcd_e_high() LCD_E_PORT |= _BV(LCD_E_PIN);
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#define lcd_e_low() LCD_E_PORT &= ~_BV(LCD_E_PIN);
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#define lcd_e_toggle() toggle_e()
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#define lcd_rw_high() LCD_RW_PORT |= _BV(LCD_RW_PIN)
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#define lcd_rw_low() LCD_RW_PORT &= ~_BV(LCD_RW_PIN)
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#define lcd_rs_high() LCD_RS_PORT |= _BV(LCD_RS_PIN)
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#define lcd_rs_low() LCD_RS_PORT &= ~_BV(LCD_RS_PIN)
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#endif
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#if LCD_IO_MODE
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#if LCD_LINES==1
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#define LCD_FUNCTION_DEFAULT LCD_FUNCTION_4BIT_1LINE
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#else
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#define LCD_FUNCTION_DEFAULT LCD_FUNCTION_4BIT_2LINES
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#endif
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#else
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#if LCD_LINES==1
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#define LCD_FUNCTION_DEFAULT LCD_FUNCTION_8BIT_1LINE
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#else
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#define LCD_FUNCTION_DEFAULT LCD_FUNCTION_8BIT_2LINES
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#endif
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#endif
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#if LCD_CONTROLLER_KS0073
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#if LCD_LINES==4
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#define KS0073_EXTENDED_FUNCTION_REGISTER_ON 0x24 /* |0|010|0100 4-bit mode extension-bit RE = 1 */
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#define KS0073_EXTENDED_FUNCTION_REGISTER_OFF 0x20 /* |0|000|1001 4 lines mode */
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#define KS0073_4LINES_MODE 0x09 /* |0|001|0000 4-bit mode, extension-bit RE = 0 */
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#endif
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#endif
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/*
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** function prototypes
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*/
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#if LCD_IO_MODE
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static void toggle_e(void);
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#endif
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/*
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** local functions
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*/
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//
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//
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//
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///*************************************************************************
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// delay loop for small accurate delays: 16-bit counter, 4 cycles/loop
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//*************************************************************************/
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//static inline void _delayFourCycles(unsigned int __count)
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//{
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// if ( __count == 0 )
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// __asm__ __volatile__( "rjmp 1f\n 1:" ); // 2 cycles
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// else
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// __asm__ __volatile__ (
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// "1: sbiw %0,1" "\n\t"
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// "brne 1b" // 4 cycles/loop
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// : "=w" (__count)
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// : "0" (__count)
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// );
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//}
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//
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//
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///*************************************************************************
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//delay for a minimum of <us> microseconds
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//the number of loops is calculated at compile-time from MCU clock frequency
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//*************************************************************************/
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//#define delay(us) _delayFourCycles( ( ( 1*(F_CPU/4000) )*us)/1000 )
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#if LCD_IO_MODE
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/* toggle Enable Pin to initiate write */
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static void toggle_e(void)
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{
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lcd_e_high();
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lcd_e_delay();
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lcd_e_low();
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}
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#endif
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/*************************************************************************
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Low-level function to write byte to LCD controller
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Input: data byte to write to LCD
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rs 1: write data
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0: write instruction
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Returns: none
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*************************************************************************/
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#if LCD_IO_MODE
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static void lcd_write(uint8_t data,uint8_t rs)
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{
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unsigned char dataBits ;
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if (rs) { /* write data (RS=1, RW=0) */
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lcd_rs_high();
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} else { /* write instruction (RS=0, RW=0) */
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lcd_rs_low();
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}
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lcd_rw_low();
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if ( ( &LCD_DATA0_PORT == &LCD_DATA1_PORT) && ( &LCD_DATA1_PORT == &LCD_DATA2_PORT ) && ( &LCD_DATA2_PORT == &LCD_DATA3_PORT )
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&& (LCD_DATA0_PIN == 0) && (LCD_DATA1_PIN == 1) && (LCD_DATA2_PIN == 2) && (LCD_DATA3_PIN == 3) )
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{
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/* configure data pins as output */
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DDR(LCD_DATA0_PORT) |= 0x0F;
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/* output high nibble first */
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dataBits = LCD_DATA0_PORT & 0xF0;
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LCD_DATA0_PORT = dataBits |((data>>4)&0x0F);
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lcd_e_toggle();
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/* output low nibble */
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LCD_DATA0_PORT = dataBits | (data&0x0F);
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lcd_e_toggle();
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/* all data pins high (inactive) */
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LCD_DATA0_PORT = dataBits | 0x0F;
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}
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else
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{
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/* configure data pins as output */
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DDR(LCD_DATA0_PORT) |= _BV(LCD_DATA0_PIN);
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DDR(LCD_DATA1_PORT) |= _BV(LCD_DATA1_PIN);
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DDR(LCD_DATA2_PORT) |= _BV(LCD_DATA2_PIN);
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DDR(LCD_DATA3_PORT) |= _BV(LCD_DATA3_PIN);
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/* output high nibble first */
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LCD_DATA3_PORT &= ~_BV(LCD_DATA3_PIN);
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LCD_DATA2_PORT &= ~_BV(LCD_DATA2_PIN);
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LCD_DATA1_PORT &= ~_BV(LCD_DATA1_PIN);
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LCD_DATA0_PORT &= ~_BV(LCD_DATA0_PIN);
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if(data & 0x80) LCD_DATA3_PORT |= _BV(LCD_DATA3_PIN);
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if(data & 0x40) LCD_DATA2_PORT |= _BV(LCD_DATA2_PIN);
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if(data & 0x20) LCD_DATA1_PORT |= _BV(LCD_DATA1_PIN);
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if(data & 0x10) LCD_DATA0_PORT |= _BV(LCD_DATA0_PIN);
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lcd_e_toggle();
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/* output low nibble */
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LCD_DATA3_PORT &= ~_BV(LCD_DATA3_PIN);
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LCD_DATA2_PORT &= ~_BV(LCD_DATA2_PIN);
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LCD_DATA1_PORT &= ~_BV(LCD_DATA1_PIN);
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LCD_DATA0_PORT &= ~_BV(LCD_DATA0_PIN);
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if(data & 0x08) LCD_DATA3_PORT |= _BV(LCD_DATA3_PIN);
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if(data & 0x04) LCD_DATA2_PORT |= _BV(LCD_DATA2_PIN);
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if(data & 0x02) LCD_DATA1_PORT |= _BV(LCD_DATA1_PIN);
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if(data & 0x01) LCD_DATA0_PORT |= _BV(LCD_DATA0_PIN);
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lcd_e_toggle();
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/* all data pins high (inactive) */
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LCD_DATA0_PORT |= _BV(LCD_DATA0_PIN);
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LCD_DATA1_PORT |= _BV(LCD_DATA1_PIN);
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LCD_DATA2_PORT |= _BV(LCD_DATA2_PIN);
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LCD_DATA3_PORT |= _BV(LCD_DATA3_PIN);
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}
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}
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#else
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#define lcd_write(d,rs) if (rs) *(volatile uint8_t*)(LCD_IO_DATA) = d; else *(volatile uint8_t*)(LCD_IO_FUNCTION) = d;
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/* rs==0 -> write instruction to LCD_IO_FUNCTION */
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/* rs==1 -> write data to LCD_IO_DATA */
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#endif
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/*************************************************************************
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Low-level function to read byte from LCD controller
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Input: rs 1: read data
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0: read busy flag / address counter
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Returns: byte read from LCD controller
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*************************************************************************/
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#if LCD_IO_MODE
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static uint8_t lcd_read(uint8_t rs)
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{
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uint8_t data;
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if (rs)
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lcd_rs_high(); /* RS=1: read data */
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else
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lcd_rs_low(); /* RS=0: read busy flag */
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lcd_rw_high(); /* RW=1 read mode */
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if ( ( &LCD_DATA0_PORT == &LCD_DATA1_PORT) && ( &LCD_DATA1_PORT == &LCD_DATA2_PORT ) && ( &LCD_DATA2_PORT == &LCD_DATA3_PORT )
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&& ( LCD_DATA0_PIN == 0 )&& (LCD_DATA1_PIN == 1) && (LCD_DATA2_PIN == 2) && (LCD_DATA3_PIN == 3) )
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{
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DDR(LCD_DATA0_PORT) &= 0xF0; /* configure data pins as input */
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lcd_e_high();
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lcd_e_delay();
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data = PIN(LCD_DATA0_PORT) << 4; /* read high nibble first */
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lcd_e_low();
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lcd_e_delay(); /* Enable 500ns low */
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lcd_e_high();
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lcd_e_delay();
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data |= PIN(LCD_DATA0_PORT)&0x0F; /* read low nibble */
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lcd_e_low();
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}
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else
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{
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/* configure data pins as input */
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DDR(LCD_DATA0_PORT) &= ~_BV(LCD_DATA0_PIN);
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DDR(LCD_DATA1_PORT) &= ~_BV(LCD_DATA1_PIN);
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DDR(LCD_DATA2_PORT) &= ~_BV(LCD_DATA2_PIN);
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DDR(LCD_DATA3_PORT) &= ~_BV(LCD_DATA3_PIN);
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/* read high nibble first */
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lcd_e_high();
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lcd_e_delay();
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data = 0;
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if ( PIN(LCD_DATA0_PORT) & _BV(LCD_DATA0_PIN) ) data |= 0x10;
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if ( PIN(LCD_DATA1_PORT) & _BV(LCD_DATA1_PIN) ) data |= 0x20;
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if ( PIN(LCD_DATA2_PORT) & _BV(LCD_DATA2_PIN) ) data |= 0x40;
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if ( PIN(LCD_DATA3_PORT) & _BV(LCD_DATA3_PIN) ) data |= 0x80;
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lcd_e_low();
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lcd_e_delay(); /* Enable 500ns low */
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/* read low nibble */
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lcd_e_high();
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lcd_e_delay();
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if ( PIN(LCD_DATA0_PORT) & _BV(LCD_DATA0_PIN) ) data |= 0x01;
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if ( PIN(LCD_DATA1_PORT) & _BV(LCD_DATA1_PIN) ) data |= 0x02;
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if ( PIN(LCD_DATA2_PORT) & _BV(LCD_DATA2_PIN) ) data |= 0x04;
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if ( PIN(LCD_DATA3_PORT) & _BV(LCD_DATA3_PIN) ) data |= 0x08;
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lcd_e_low();
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}
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return data;
|
||||
}
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#else
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#define lcd_read(rs) (rs) ? *(volatile uint8_t*)(LCD_IO_DATA+LCD_IO_READ) : *(volatile uint8_t*)(LCD_IO_FUNCTION+LCD_IO_READ)
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/* rs==0 -> read instruction from LCD_IO_FUNCTION */
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/* rs==1 -> read data from LCD_IO_DATA */
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#endif
|
||||
|
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|
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/*************************************************************************
|
||||
loops while lcd is busy, returns address counter
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*************************************************************************/
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static uint8_t lcd_waitbusy(void)
|
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|
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{
|
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register uint8_t c;
|
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|
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/* wait until busy flag is cleared */
|
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while ( (c=lcd_read(0)) & (1<<LCD_BUSY)) {}
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|
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/* the address counter is updated 4us after the busy flag is cleared */
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_delay_us(2);
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/* now read the address counter */
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return (lcd_read(0)); // return address counter
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|
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}/* lcd_waitbusy */
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|
||||
|
||||
/*************************************************************************
|
||||
Move cursor to the start of next line or to the first line if the cursor
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is already on the last line.
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*************************************************************************/
|
||||
static inline void lcd_newline(uint8_t pos)
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{
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register uint8_t addressCounter;
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|
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#if LCD_LINES==1
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addressCounter = 0;
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#endif
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#if LCD_LINES==2
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if ( pos < (LCD_START_LINE2) )
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addressCounter = LCD_START_LINE2;
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else
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addressCounter = LCD_START_LINE1;
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#endif
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#if LCD_LINES==4
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#if KS0073_4LINES_MODE
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if ( pos < LCD_START_LINE2 )
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addressCounter = LCD_START_LINE2;
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else if ( (pos >= LCD_START_LINE2) && (pos < LCD_START_LINE3) )
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addressCounter = LCD_START_LINE3;
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else if ( (pos >= LCD_START_LINE3) && (pos < LCD_START_LINE4) )
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addressCounter = LCD_START_LINE4;
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else
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addressCounter = LCD_START_LINE1;
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#else
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if ( pos < LCD_START_LINE3 )
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addressCounter = LCD_START_LINE2;
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else if ( (pos >= LCD_START_LINE2) && (pos < LCD_START_LINE4) )
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addressCounter = LCD_START_LINE3;
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else if ( (pos >= LCD_START_LINE3) && (pos < LCD_START_LINE2) )
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addressCounter = LCD_START_LINE4;
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else
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addressCounter = LCD_START_LINE1;
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#endif
|
||||
#endif
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lcd_command((1<<LCD_DDRAM)+addressCounter);
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|
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}/* lcd_newline */
|
||||
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|
||||
/*
|
||||
** PUBLIC FUNCTIONS
|
||||
*/
|
||||
|
||||
/*************************************************************************
|
||||
Send LCD controller instruction command
|
||||
Input: instruction to send to LCD controller, see HD44780 data sheet
|
||||
Returns: none
|
||||
*************************************************************************/
|
||||
void lcd_command(uint8_t cmd)
|
||||
{
|
||||
lcd_waitbusy();
|
||||
lcd_write(cmd,0);
|
||||
}
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
Send data byte to LCD controller
|
||||
Input: data to send to LCD controller, see HD44780 data sheet
|
||||
Returns: none
|
||||
*************************************************************************/
|
||||
void lcd_data(uint8_t data)
|
||||
{
|
||||
lcd_waitbusy();
|
||||
lcd_write(data,1);
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
Set cursor to specified position
|
||||
Input: x horizontal position (0: left most position)
|
||||
y vertical position (0: first line)
|
||||
Returns: none
|
||||
*************************************************************************/
|
||||
void lcd_gotoxy(uint8_t x, uint8_t y)
|
||||
{
|
||||
#if LCD_LINES==1
|
||||
lcd_command((1<<LCD_DDRAM)+LCD_START_LINE1+x);
|
||||
#endif
|
||||
#if LCD_LINES==2
|
||||
if ( y==0 )
|
||||
lcd_command((1<<LCD_DDRAM)+LCD_START_LINE1+x);
|
||||
else
|
||||
lcd_command((1<<LCD_DDRAM)+LCD_START_LINE2+x);
|
||||
#endif
|
||||
#if LCD_LINES==4
|
||||
if ( y==0 )
|
||||
lcd_command((1<<LCD_DDRAM)+LCD_START_LINE1+x);
|
||||
else if ( y==1)
|
||||
lcd_command((1<<LCD_DDRAM)+LCD_START_LINE2+x);
|
||||
else if ( y==2)
|
||||
lcd_command((1<<LCD_DDRAM)+LCD_START_LINE3+x);
|
||||
else /* y==3 */
|
||||
lcd_command((1<<LCD_DDRAM)+LCD_START_LINE4+x);
|
||||
#endif
|
||||
|
||||
}/* lcd_gotoxy */
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
*************************************************************************/
|
||||
int lcd_getxy(void)
|
||||
{
|
||||
return lcd_waitbusy();
|
||||
}
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
Clear display and set cursor to home position
|
||||
*************************************************************************/
|
||||
void lcd_clrscr(void)
|
||||
{
|
||||
lcd_command(1<<LCD_CLR);
|
||||
}
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
Set cursor to home position
|
||||
*************************************************************************/
|
||||
void lcd_home(void)
|
||||
{
|
||||
lcd_command(1<<LCD_HOME);
|
||||
}
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
Display character at current cursor position
|
||||
Input: character to be displayed
|
||||
Returns: none
|
||||
*************************************************************************/
|
||||
void lcd_putc(char c)
|
||||
{
|
||||
uint8_t pos;
|
||||
|
||||
|
||||
pos = lcd_waitbusy(); // read busy-flag and address counter
|
||||
if (c=='\n')
|
||||
{
|
||||
lcd_newline(pos);
|
||||
}
|
||||
else
|
||||
{
|
||||
#if LCD_WRAP_LINES==1
|
||||
#if LCD_LINES==1
|
||||
if ( pos == LCD_START_LINE1+LCD_DISP_LENGTH ) {
|
||||
lcd_write((1<<LCD_DDRAM)+LCD_START_LINE1,0);
|
||||
}
|
||||
#elif LCD_LINES==2
|
||||
if ( pos == LCD_START_LINE1+LCD_DISP_LENGTH ) {
|
||||
lcd_write((1<<LCD_DDRAM)+LCD_START_LINE2,0);
|
||||
}else if ( pos == LCD_START_LINE2+LCD_DISP_LENGTH ){
|
||||
lcd_write((1<<LCD_DDRAM)+LCD_START_LINE1,0);
|
||||
}
|
||||
#elif LCD_LINES==4
|
||||
if ( pos == LCD_START_LINE1+LCD_DISP_LENGTH ) {
|
||||
lcd_write((1<<LCD_DDRAM)+LCD_START_LINE2,0);
|
||||
}else if ( pos == LCD_START_LINE2+LCD_DISP_LENGTH ) {
|
||||
lcd_write((1<<LCD_DDRAM)+LCD_START_LINE3,0);
|
||||
}else if ( pos == LCD_START_LINE3+LCD_DISP_LENGTH ) {
|
||||
lcd_write((1<<LCD_DDRAM)+LCD_START_LINE4,0);
|
||||
}else if ( pos == LCD_START_LINE4+LCD_DISP_LENGTH ) {
|
||||
lcd_write((1<<LCD_DDRAM)+LCD_START_LINE1,0);
|
||||
}
|
||||
#endif
|
||||
lcd_waitbusy();
|
||||
#endif
|
||||
lcd_write(c, 1);
|
||||
}
|
||||
|
||||
}/* lcd_putc */
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
Display string without auto linefeed
|
||||
Input: string to be displayed
|
||||
Returns: none
|
||||
*************************************************************************/
|
||||
void lcd_puts(const char *s)
|
||||
/* print string on lcd (no auto linefeed) */
|
||||
{
|
||||
register char c;
|
||||
|
||||
while ( (c = *s++) ) {
|
||||
lcd_putc(c);
|
||||
}
|
||||
|
||||
}/* lcd_puts */
|
||||
|
||||
void lcd_string(const char *s)
|
||||
/* print string on lcd (no auto linefeed) */
|
||||
{
|
||||
register char c;
|
||||
|
||||
while ( (c = *s++) ) {
|
||||
lcd_putc(c);
|
||||
}
|
||||
|
||||
}/* lcd_puts */
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
Display string from program memory without auto linefeed
|
||||
Input: string from program memory be be displayed
|
||||
Returns: none
|
||||
*************************************************************************/
|
||||
void lcd_puts_p(const char *progmem_s)
|
||||
/* print string from program memory on lcd (no auto linefeed) */
|
||||
{
|
||||
register char c;
|
||||
|
||||
while ( (c = pgm_read_byte(progmem_s++)) ) {
|
||||
lcd_putc(c);
|
||||
}
|
||||
|
||||
}/* lcd_puts_p */
|
||||
|
||||
// setzt den Cursor in Zeile y (1..4) Spalte x (0..15)
|
||||
void set_cursor(uint8_t x, uint8_t y)
|
||||
{
|
||||
uint8_t tmp;
|
||||
|
||||
switch (y)
|
||||
{
|
||||
case 1: tmp=0x80+0x00+x; break; // 1. Zeile
|
||||
case 2: tmp=0x80+0x40+x; break; // 2. Zeile
|
||||
case 3: tmp=0x80+0x14+x; break; // 3. Zeile (Angepasst auf 20 Spalten 0x14 statt 0x10)
|
||||
case 4: tmp=0x80+0x54+x; break; // 4. Zeile (Angepasst auf 20 Spalten 0x54 statt 0x50)
|
||||
default: return; // für den Fall einer falschen Zeile
|
||||
}
|
||||
lcd_command(tmp);
|
||||
}
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
Initialize display and select type of cursor
|
||||
Input: dispAttr LCD_DISP_OFF display off
|
||||
LCD_DISP_ON display on, cursor off
|
||||
LCD_DISP_ON_CURSOR display on, cursor on
|
||||
LCD_DISP_CURSOR_BLINK display on, cursor on flashing
|
||||
Returns: none
|
||||
*************************************************************************/
|
||||
void lcd_init(uint8_t dispAttr)
|
||||
{
|
||||
#if LCD_IO_MODE
|
||||
/*
|
||||
* Initialize LCD to 4 bit I/O mode
|
||||
*/
|
||||
|
||||
if ( ( &LCD_DATA0_PORT == &LCD_DATA1_PORT) && ( &LCD_DATA1_PORT == &LCD_DATA2_PORT ) && ( &LCD_DATA2_PORT == &LCD_DATA3_PORT )
|
||||
&& ( &LCD_RS_PORT == &LCD_DATA0_PORT) && ( &LCD_RW_PORT == &LCD_DATA0_PORT) && (&LCD_E_PORT == &LCD_DATA0_PORT)
|
||||
&& (LCD_DATA0_PIN == 0 ) && (LCD_DATA1_PIN == 1) && (LCD_DATA2_PIN == 2) && (LCD_DATA3_PIN == 3)
|
||||
&& (LCD_RS_PIN == 4 ) && (LCD_RW_PIN == 5) && (LCD_E_PIN == 6 ) )
|
||||
{
|
||||
/* configure all port bits as output (all LCD lines on same port) */
|
||||
DDR(LCD_DATA0_PORT) |= 0x7F;
|
||||
}
|
||||
else 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 all port bits as output (all LCD data lines on same port, but control lines on different ports) */
|
||||
DDR(LCD_DATA0_PORT) |= 0x0F;
|
||||
DDR(LCD_RS_PORT) |= _BV(LCD_RS_PIN);
|
||||
DDR(LCD_RW_PORT) |= _BV(LCD_RW_PIN);
|
||||
DDR(LCD_E_PORT) |= _BV(LCD_E_PIN);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* configure all port bits as output (LCD data and control lines on different ports */
|
||||
DDR(LCD_RS_PORT) |= _BV(LCD_RS_PIN);
|
||||
DDR(LCD_RW_PORT) |= _BV(LCD_RW_PIN);
|
||||
DDR(LCD_E_PORT) |= _BV(LCD_E_PIN);
|
||||
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);
|
||||
}
|
||||
_delay_ms(16); /* wait 16ms or more after power-on */
|
||||
|
||||
/* initial write to lcd is 8bit */
|
||||
LCD_DATA1_PORT |= _BV(LCD_DATA1_PIN); // _BV(LCD_FUNCTION)>>4;
|
||||
LCD_DATA0_PORT |= _BV(LCD_DATA0_PIN); // _BV(LCD_FUNCTION_8BIT)>>4;
|
||||
lcd_e_toggle();
|
||||
_delay_us(4992); /* delay, busy flag can't be checked here */
|
||||
|
||||
/* repeat last command */
|
||||
lcd_e_toggle();
|
||||
_delay_us(64); /* delay, busy flag can't be checked here */
|
||||
|
||||
/* repeat last command a third time */
|
||||
lcd_e_toggle();
|
||||
_delay_us(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_us(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 */
|
||||
268
src/ds1820/lcd.h
268
src/ds1820/lcd.h
|
|
@ -1,268 +0,0 @@
|
|||
#ifndef LCD_H
|
||||
#define LCD_H
|
||||
/*************************************************************************
|
||||
Title : C include file for the HD44780U LCD library (lcd.c)
|
||||
Author: Peter Fleury <pfleury@gmx.ch> 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 <lcd.h> @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 <a href="http://homepage.sunrise.ch/mysunrise/peterfleury/avr-lcd44780.html" target="_blank">Interfacing a HD44780 Based LCD to an AVR</a>
|
||||
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 <inttypes.h>
|
||||
#include <avr/io.h>
|
||||
#include <avr/pgmspace.h>
|
||||
#include "lcd.h"
|
||||
#include "util/delay.h"
|
||||
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* @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 2 /**< number of visible lines of the display */
|
||||
#define LCD_DISP_LENGTH 8 /**< 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 PORTC /**< 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 3 /**< pin for 4bit data bit 0 */
|
||||
#define LCD_DATA1_PIN 4 /**< pin for 4bit data bit 1 */
|
||||
#define LCD_DATA2_PIN 5 /**< pin for 4bit data bit 2 */
|
||||
#define LCD_DATA3_PIN 6 /**< pin for 4bit data bit 3 */
|
||||
#define LCD_RS_PORT LCD_PORT /**< port for RS line */
|
||||
#define LCD_RS_PIN 0 /**< pin for RS line */
|
||||
#define LCD_RW_PORT LCD_PORT /**< port for RW line */
|
||||
#define LCD_RW_PIN 1 /**< pin for RW line */
|
||||
#define LCD_E_PORT LCD_PORT /**< port for Enable line */
|
||||
#define LCD_E_PIN 2 /**< 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<<LCD_ENTRY_MODE) | (1<<LCD_ENTRY_INC) )
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* @name Functions
|
||||
*/
|
||||
|
||||
|
||||
/**
|
||||
@brief Initialize display and select type of cursor
|
||||
@param dispAttr \b LCD_DISP_OFF display off\n
|
||||
\b LCD_DISP_ON display on, cursor off\n
|
||||
\b LCD_DISP_ON_CURSOR display on, cursor on\n
|
||||
\b LCD_DISP_ON_CURSOR_BLINK display on, cursor on flashing
|
||||
@return none
|
||||
*/
|
||||
extern void lcd_init(uint8_t dispAttr);
|
||||
|
||||
|
||||
/**
|
||||
@brief Clear display and set cursor to home position
|
||||
@param void
|
||||
@return none
|
||||
*/
|
||||
extern void lcd_clrscr(void);
|
||||
|
||||
|
||||
/**
|
||||
@brief Set cursor to home position
|
||||
@param void
|
||||
@return none
|
||||
*/
|
||||
extern void lcd_home(void);
|
||||
|
||||
|
||||
/**
|
||||
@brief Set cursor to specified position
|
||||
|
||||
@param x horizontal position\n (0: left most position)
|
||||
@param y vertical position\n (0: first line)
|
||||
@return none
|
||||
*/
|
||||
extern void lcd_gotoxy(uint8_t x, uint8_t y);
|
||||
|
||||
|
||||
/**
|
||||
@brief Display character at current cursor position
|
||||
@param c character to be displayed
|
||||
@return none
|
||||
*/
|
||||
extern void lcd_putc(char c);
|
||||
|
||||
|
||||
/**
|
||||
@brief Display string without auto linefeed
|
||||
@param s string to be displayed
|
||||
@return none
|
||||
*/
|
||||
extern void lcd_puts(const char *s);
|
||||
extern void lcd_string(const char *s);
|
||||
|
||||
|
||||
/**
|
||||
@brief Display string from program memory without auto linefeed
|
||||
@param s string from program memory be be displayed
|
||||
@return none
|
||||
@see lcd_puts_P
|
||||
*/
|
||||
|
||||
extern void set_cursor(uint8_t x, uint8_t y);
|
||||
|
||||
extern void lcd_puts_p(const char *progmem_s);
|
||||
|
||||
|
||||
/**
|
||||
@brief Send LCD controller instruction command
|
||||
@param cmd instruction to send to LCD controller, see HD44780 data sheet
|
||||
@return none
|
||||
*/
|
||||
extern void lcd_command(uint8_t cmd);
|
||||
|
||||
|
||||
/**
|
||||
@brief Send data byte to LCD controller
|
||||
|
||||
Similar to lcd_putc(), but without interpreting LF
|
||||
@param data byte to send to LCD controller, see HD44780 data sheet
|
||||
@return none
|
||||
*/
|
||||
extern void lcd_data(uint8_t data);
|
||||
|
||||
|
||||
/**
|
||||
@brief macros for automatically storing string constant in program memory
|
||||
*/
|
||||
#define lcd_puts_P(__s) lcd_puts_p(PSTR(__s))
|
||||
|
||||
/*@}*/
|
||||
#endif //LCD_H
|
||||
|
|
@ -1,48 +0,0 @@
|
|||
/**
|
||||
* DS1820 test
|
||||
*
|
||||
* @author Steffen Vogel
|
||||
* @copyright 2013 Institute for Man-Machine Interaction, RWTH Aachen
|
||||
* @license http://www.gnu.org/licenses/gpl.txt GNU Public License
|
||||
* @author Steffen Vogel <post@steffenvogel.de>
|
||||
* @link http://www.mmi.rwth-aachen.de/?microcontrollerag
|
||||
*/
|
||||
/*
|
||||
* This is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* any later version.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
#include "lcd.h"
|
||||
#include "ds1820.h"
|
||||
|
||||
int main() {
|
||||
float temp;
|
||||
char buffer[16];
|
||||
|
||||
|
||||
lcd_init(LCD_DISP_ON);
|
||||
ds1820_init(PB2);
|
||||
|
||||
lcd_puts("DS1820\nReadout");
|
||||
_delay_ms(1000);
|
||||
lcd_clrscr();
|
||||
|
||||
|
||||
for (;;) {
|
||||
temp = ds1820_read_temp(PB2);
|
||||
snprintf(buffer, sizeof(buffer), "%.2f ", temp);
|
||||
|
||||
lcd_home();
|
||||
lcd_puts(buffer);
|
||||
lcd_putc(0xdf);
|
||||
lcd_putc('C');
|
||||
|
||||
_delay_ms(500);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
Loading…
Add table
Reference in a new issue