스마트 컨트롤러

20150723

2015 스마트 콘트롤러/업무일지 2015. 7. 23. 23:42

==========================================================================================

ARM

==========================================================================================

<ARM>

=회로도

http://itsmart333.tistory.com/attachment/cfile7.uf@2439C14355AE048119F7F5.pdf

-소스인사이트 소스깨짐 방지

http://blog.naver.com/junyoung8934/90182483563

=LCD 연결

<AT91SAM7S256.h>

<<ARM>>

<MAIN.C>

#include <project.h>

int main()
{

  while (1);
  return 0;
}

<LCD.H>

#ifndef __LCD_H__
#define __LCD_H__
#include <AT91SAM7S256.h>

#define LCD_BUS  0x00FF0000  //MASK 16~23
#define LCD_RS  0x00000001  // 1
#define LCD_RW  0x00000002  // 2
#define LCD_EN  0x00000004  // 3

#define LCD_CAL_INST(X)  ((LCD_BUS)&((X)<<16)) // INST만 넣기

void LCD_Init(void);
#endif // __LCD_H__

<LCD.C>

#include "lcd.h"

void LCD_Inst(unsigned int uiInst)
{
  volatile unsigned int uiCnt;

  *AT91C_PIOA_CODR = LCD_BUS | LCD_RS | LCD_RW | LCD_EN;  // LOW
  *AT91C_PIOA_SODR = LCD_CAL_INST(uiInst);
  for(uiCnt = 0 ; uiCnt <100000; ++uiCnt);  // ALL INIT
  for(uiCnt = 0 ; uiCnt <100000; ++uiCnt);  // RS = LOW
  *AT91C_PIOA_SODR = LCD_EN;
  for(uiCnt = 0 ; uiCnt <100000; ++uiCnt);  // EN = HIGH
  for(uiCnt = 0 ; uiCnt <100000; ++uiCnt);  // BUS = DATA
  for(uiCnt = 0 ; uiCnt <100000; ++uiCnt);  // BUS = VALID DATA
  *AT91C_PIOA_CODR = LCD_EN;
  for(uiCnt = 0 ; uiCnt <100000; ++uiCnt);  // EN = LOW
}

void LCD_Init(void)
{
  //*PIO_PER = LCD_BUS | LCD_RS | LCD_RW | LCD_EN; // 0번지 X => ASSEM
  //AT91C_BASE_PIOA->PIO_PER = LCD_BUS | LCD_RS | LCD_RW | LCD_EN;
  *AT91C_PIOA_PER = LCD_BUS | LCD_RS | LCD_RW | LCD_EN;

  *AT91C_PIOA_PPUDR = LCD_BUS | LCD_RS | LCD_RW | LCD_EN;

  return;
}

<MAKEFILE>

#-----------------------------
# 2008 Mecha Cource - By CM WC, 2008.09.10.
#-----------------------------
ifndef ERASE_FCT
ERASE_FCT=rm -rf
endif
ifndef WCCROSS_COMPILE
WCCROSS_COMPILE=arm-elf-
endif

WCTOOL=gcc

WCOUTFILE_SRAM=at91sam7s_sram_wc
WCOUTFILE_FLASH=at91sam7s_flash_wc

WCTARGET=AT91SAM7S256

WCINCL=./include

# Debug Mode
OPTIM=-Os

ifeq ($(WCTOOL), gcc)

AS=$(WCCROSS_COMPILE)gcc
CC=$(WCCROSS_COMPILE)gcc
LD=$(WCCROSS_COMPILE)gcc

OBJCOPY=$(WCCROSS_COMPILE)objcopy
OBJDUMP=$(WCCROSS_COMPILE)objdump

NM= $(WCCROSS_COMPILE)nm
SIZE=$(WCCROSS_COMPILE)size

CCFLAGS=-g -mcpu=arm7tdmi $(OPTIM) -Wall -I$(WCINCL) -D$(WCTARGET)
ASFLAGS=-D__ASSEMBLY__ -D$(WCTARGET) -g -mcpu=arm7tdmi -c $(OPTIM) -Wall -I$(WCINCL)

LDFLAGS+=-nostartfiles -Wl,--cref
LDFLAGS+=-lc -lgcc
LDFLAGS+=-T elf32-littlearm.lds

OBJS=cstartup.o
endif

OBJS+= lowlevel.o \
       main.o \
       lcd.o

all: sram flash

rebuild: clean all

sram: $(OBJS)
  $(LD) $(LDFLAGS) -Ttext 0x201000 -Tdata 0x200000 -n -o $(WCOUTFILE_SRAM).elf $(OBJS)
  $(OBJCOPY) --strip-debug --strip-unneeded $(WCOUTFILE_SRAM).elf -O binary $(WCOUTFILE_SRAM).bin

flash: $(OBJS)
  $(LD) $(LDFLAGS) -Ttext 0x100000 -Tdata 0x200000 -n -o $(WCOUTFILE_FLASH).elf $(OBJS)
  $(OBJCOPY) --strip-debug --strip-unneeded $(WCOUTFILE_FLASH).elf -O binary $(WCOUTFILE_FLASH).bin

main.o: main.c
  $(CC) -c $(CCFLAGS) main.c -o main.o

lcd.o: lcd.c
  $(CC) -c $(CCFLAGS) lcd.c -o lcd.o

lowlevel.o: lowlevel.c
  $(CC) -c $(CCFLAGS) lowlevel.c -o lowlevel.o

cstartup.o:  cstartup.S
  $(AS) $(ASFLAGS) cstartup.S -o cstartup.o

clean:
  $(ERASE_FCT) *.o *.bin *.elf *.map

<<AVR -<LCD.C>- LCD INST>>

static void LCD_Inst(unsigned char ucInst)
{
  volatile unsigned int uiCnt;

  //DB INST SET (ENABLE 전 셋팅)
  LCD_BUS = ucInst;

  //Write Mode Timing Diagram
  LCD_CTL = (0<<LCD_PIN_RS)|(0<<LCD_PIN_RW)|(0<<LCD_PIN_EN);    // RS : LOW / RW : LOW / EN : LOW => 쓰레기값 (Don't Care)
  DELAY(DNUM_1);
  LCD_CTL = (0<<LCD_PIN_RS)|(0<<LCD_PIN_RW)|(1<<LCD_PIN_EN);    // EN : HIGH
  DELAY(DNUM_2);
  LCD_CTL = (0<<LCD_PIN_RS)|(0<<LCD_PIN_RW)|(0<<LCD_PIN_EN);    // EN : LOW
  DELAY(DNUM_3);

  return;
}