#include "lcd_st7920.h"
void delay_ms (u16 time_num)
{
u16 num;
while (time_num--)
{
for (num=0;num<100;num++);
}
}
//LCD初始化
void lcd_init (void)
{
delay_ms(30);
lcd_command (0x30);
delay_ms(30);
lcd_command (0x30);
delay_ms(30);
lcd_command (0x0c);
delay_ms(30);
lcd_command (0x01);
delay_ms(30);
lcd_command (0x06);
delay_ms(30);
}
//LCD命令写入
void lcd_command (u8 a)
{
u8 n,x;
x=LCD_COMMAND;
for (n=0;n<8;n++)
{
LCD_CLK_L;
if ((x&0x80)!=0)
LCD_DIN_H;
else
LCD_DIN_L;
//LCD_DELAY_NOP;
LCD_CLK_H;
//LCD_DELAY_NOP;
x<<=1;
}
x=a&0xf0;
for (n=0;n<8;n++)
{
LCD_CLK_L;
if ((x&0x80)!=0)
LCD_DIN_H;
else
LCD_DIN_L;
//LCD_DELAY_NOP;
LCD_CLK_H;
//LCD_DELAY_NOP;
x<<=1;
}
a<<=4;
x=a&0xf0;
for (n=0;n<8;n++)
{
LCD_CLK_L;
if ((x&0x80)!=0)
LCD_DIN_H;
else
LCD_DIN_L;
//LCD_DELAY_NOP;
LCD_CLK_H;
//LCD_DELAY_NOP;
x<<=1;
}
}
//LCD数据写入
void lcd_write (u8 a)
{
u8 n,x;
x=LCD_DATA;
for (n=0;n<8;n++)
{
LCD_CLK_L;
if ((x&0x80)!=0)
LCD_DIN_H;
else
LCD_DIN_L;
//LCD_DELAY_NOP;
LCD_CLK_H;
//LCD_DELAY_NOP;
x<<=1;
}
x=a&0xf0;
for (n=0;n<8;n++)
{
LCD_CLK_L;
if ((x&0x80)!=0)
LCD_DIN_H;
else
LCD_DIN_L;
//LCD_DELAY_NOP;
LCD_CLK_H;
//LCD_DELAY_NOP;
x<<=1;
}
a<<=4;
x=a&0xf0;
for (n=0;n<8;n++)
{
LCD_CLK_L;
if ((x&0x80)!=0)
LCD_DIN_H;
else
LCD_DIN_L;
//LCD_DELAY_NOP;
LCD_CLK_H;
//LCD_DELAY_NOP;
x<<=1;
}
}
//LCD显示位置定位，0-x-3，0-y-7
void lcd_post (u8 x,u8 y)
{
switch(x)
{
case 0: lcd_command (0x80+y);break;
case 1: lcd_command (0x90+y);break;
case 2: lcd_command (0x88+y);break;
case 3: lcd_command (0x98+y);break;
}
}
//LCD显示字符
void lcd_display (u16 c)
{
u8 temp;
if (c<128)
{
temp=(u8)(c);
lcd_write (temp);
}
else
{
temp=(u8)(c>>8);
lcd_write (temp);
temp=(u8)(c);
lcd_write (temp);
}
}
//显示字符串
void lcd_displays(u16 post,u8 *c){
switch(post)
{
case 0: lcd_command (0x80);
while(*c!='\0') {lcd_write(*c);
c+=1;}
break;
case 1: lcd_command (0x90);
while(*c!='\0'){lcd_write(*c);
c+=1;}
break;
case 2: lcd_command (0x88);
while(*c!='\0'){ lcd_write(*c);
c+=1;}
break;
case 3: lcd_command (0x98);
while(*c!='\0') {lcd_write(*c);
c+=1;}
break;
}
}
//CH452初始化
void ch452_init (void)
{
u8 n;
u16 temp;
CH452_SDA_WR;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SDA_H;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SCL_H;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SDA_L;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SCL_L;
temp=Sys_Parameter;
for (n=0;n<8;n++)
{
if (temp&0x8000)
CH452_SDA_H;
else
CH452_SDA_L;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SCL_H;
nop;nop;nop;nop;nop;nop;nop;nop;
temp<<=1;
CH452_SCL_L;
nop;nop;nop;nop;nop;nop;nop;nop;
}
CH452_SDA_H;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SCL_H;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SCL_L;
nop;nop;nop;nop;nop;nop;nop;nop;
for (n=0;n<8;n++)
{
if (temp&0x8000)
CH452_SDA_H;
else
CH452_SDA_L;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SCL_H;
nop;nop;nop;nop;nop;nop;nop;nop;
temp<<=1;
CH452_SCL_L;
nop;nop;nop;nop;nop;nop;nop;nop;
}
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SDA_H;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SCL_H;
}
//CH452读取按键值
u8 ch452_read_key (void)
{
u8 n,value;
u16 temp;
CH452_SDA_WR;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SDA_H;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SCL_H;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SDA_L;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SCL_L;
temp=Read_Keyboard;
for (n=0;n<8;n++)
{
if (temp&0x8000)
CH452_SDA_H;
else
CH452_SDA_L;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SCL_H;
nop;nop;nop;nop;nop;nop;nop;nop;
temp<<=1;
CH452_SCL_L;
nop;nop;nop;nop;nop;nop;nop;nop;
}
CH452_SDA_H;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SDA_RD;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SCL_H;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SCL_L;
nop;nop;nop;nop;nop;nop;nop;nop;
value=0;
for (n=0;n<8;n++)
{
value<<=1;
if (0x40 & P1IN)
value|=0x01;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SCL_H;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SCL_L;
}
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SDA_H;
nop;nop;nop;nop;nop;nop;nop;nop;
CH452_SCL_H;
return value;
}
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main.c 5KB .metadata .lock 0B .mylyn 
repositories.xml.zip 438B contexts .plugins com.ti.dvt.ideadapter IDEAdapterMgr.xml 254B com.ti.ccstudio.project.ui dialog_settings.xml 188B org.eclipse.cdt.make.core specs.c 1B specs.cpp 1B org.eclipse.cdt.core .log 252B org.eclipse.debug.core org.eclipse.rtsc.xdctools.buildDefinitions.DSPBIOS org.eclipse.mylyn.bugzilla.core org.eclipse.core.runtime .settings org.eclipse.ui.workbench.prefs 1KB org.eclipse.team.cvs.ui.prefs 88B org.eclipse.debug.core.prefs 662B org.eclipse.core.resources.prefs 73B org.eclipse.ui.ide.prefs 160B org.eclipse.mylyn.monitor.ui.prefs 128B com.ti.ccstudio.ui.prefs 207B org.eclipse.mylyn.context.core.prefs 93B com.ti.ccstudio.buildDefinitions.core.prefs 114B com.ti.ccstudio.debug.ui.5.1.1.or.higher 0B org.eclipse.cdt.ui.prefs 152B org.eclipse.cdt.debug.core.prefs 782B org.eclipse.debug.ui.prefs 1KB org.eclipse.team.ui.prefs 100B com.ti.dvt.datamodel temp SolutionMgr.xml 185B com.ti.dvt.ui workspace org.eclipse.debug.ui org.eclipse.ui.workbench workingsets.xml 257B dialog_settings.xml 80B workbench.xml 25KB com.ti.ccstudio.builddefinitions.generator 5.1.1 MSP430.xml 1KB com.ti.dvt.graph.visualization org.eclipse.team.cvs.core org.eclipse.core.resources .history .root .indexes history.version 1B properties.version 1B 3.tree 124B .safetable org.eclipse.core.resources 608B org.eclipse.ui.ide dialog_settings.xml 3KB org.eclipse.mylyn.tasks.ui org.eclipse.epp.usagedata.recording usagedata.csv 50B version.ini 26B .log 64KB .settings org.eclipse.core.resources.prefs 239B org.eclipse.cdt.codan.core.prefs 93B org.eclipse.cdt.debug.core.prefs 154B lcd_st7920.h 1KB .project 3KB lcd_st7920.c 5KB .cproject 17KB .ccsproject 490B main.h 661B MSP430G2553.ccxml 822B lnk_msp430g2553.cmd 5KB Debug TEMP.map 14KB sources.mk 2KB ccsSrcs.opt 30B lcd_st7920.pp 385B TEMP.out 38KB objects.mk 268B subdir_vars.mk 625B ccsObjs.opt 68B lcd_st7920.obj 18KB main.obj 17KB subdir_rules.mk 1KB makefile 3KB main.pp 343B资源评论
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