📄 7219.c
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/*------------------------------------------------------------------------------
; Title: VS7219 Function Test/Demo Board
; Programer： Wang Hezuo(王合作)
; Version: 1.0
; Last updated: 2005.11.19
; Target: --------
; Processor: AT89C51(Generic 8031 series),at 24M(30P)
; Display: LCM1602
; Support E-mail: wanghz@vslun.com
; wanghezuo@hotmail.com
; DESCRIPTION:
; This Application Support to Test VS7219
; And Demo & Can Measure Pin Current.
------------------------------------------------------------------------------*/
//#pragma src // 产生汇编文件
#include <reg51.h>
#include <absacc.h>
#include <string.h>
#include <intrins.h>
// =★=★=★=★=★=★= 变量类型标识的宏定义，大家都喜欢这么做 =★=★=★=★=★=★=
#define uchar unsigned char
#define uint unsigned int
#define SomeNOP(); _nop_();_nop_();_nop_();_nop_(); //SomeNOP()使电路有一个稳定的过程
//uchar idata
#define cA 0x41
#define cB 0x42
#define cC 0x43
#define cD 0x44
#define cE 0x45
#define cF 0x46
#define cG 0x47
#define cH 0x48
#define cI 0x49
#define cJ 0x4a
#define cK 0x4b
#define cL 0x4c
#define cM 0x4d
#define cN 0x4e
#define cO 0x4f
#define cP 0x50
#define cQ 0x51
#define cR 0x52
#define cS 0x53
#define cT 0x54
#define cU 0x55
#define cV 0x56
#define cW 0x57
#define cX 0x58
#define cY 0x59
#define cZ 0x5a
#define ca 0x61
#define cb 0x62
#define cc 0x63
#define cd 0x64
#define ce 0x65
#define cf 0x66
#define cg 0x67
#define ch 0x68
#define ci 0x69
#define cj 0x6a
#define ck 0x6b
#define cl 0x6c
#define cm 0x6d
#define cn 0x6e
#define co 0x6f
#define cp 0x70
#define cq 0x71
#define cr 0x72
#define cs 0x73
#define ct 0x74
#define cu 0x75
#define cv 0x76
#define cw 0x77
#define cx 0x78
#define cy 0x79
#define cz 0x7a
#define c0 0x30
#define c1 0x31
#define c2 0x32
#define c3 0x33
#define c4 0x34
#define c5 0x35
#define c6 0x36
#define c7 0x37
#define c8 0x38
#define c9 0x39
char code exampl01[] = "When 7219 Ready ";
char code exampl02[] = " Press NEW Key";
char code exampl03[] = "New 7219 Status:";
char code exampl04[] = "See Indicate LED";
char code exampl05[] = "VS7219 Status: ";
char code exampl06[] = " Display Normal"; // 测试状态
char code exampl07[] = " Display Test";
char code exampl08[] = " Decode"; // 译码/不译码
char code exampl09[] = " NO Decode";
char code exampl10[] = " ShutDown"; // 关断/启动
char code exampl11[] = " WakeUp";
char code exampl12[] = "VS7219 Display "; // 演示显示，同时选择是译码/不译码时的显示
char code exampl13[] = " ";
char code exampl14[] = "OK?";
// LCD1602 Pin Defined（引脚定义Can change this part at different board.）
/******************************************************************************/
#define Busy 0x80 // LCD sfr Busy=0x80;
#define DataPort P0 // LCD数据端口
sbit RS_LCD = P1^0;
sbit RW_LCD = P1^1;
sbit E_LCD = P1^2;
// VS7219 Pin Defined（引脚定义Can change this part at different board.）
/******************************************************************************/
sbit VS7219_LOAD_TestIC = P1^6; // VS7219 Load-Data Input: rising edge pin 12
sbit VS7219_LOAD = P1^4; // VS7219 Load-Data Input: rising edge pin 12
sbit VS7219_DIN = P1^5; // VS7219 Serial-Data Input: rising edge pin 1
sbit VS7219_CLK = P1^3; // VS7219 Serial-Clock Input: maximum 10MHz pin 13
// VS7219 common part
#define HIGH 1
#define LOW 0
#define TRUE 1
#define FALSE 0
#define ZERO 0
#define MSB 0x80
#define LSB 0x01
// VS7219 part
#define NoOp 0x00
#define Digit0 0x01
#define Digit1 0x02
#define Digit2 0x03
#define Digit3 0x04
#define Digit4 0x05
#define Digit5 0x06
#define Digit6 0x07
#define Digit7 0x08
#define DECODE_MODE 0x09
#define INTENSITY 0x0A
#define SCAN_LIMIT 0x0B
#define SHUTDOWN 0x0C
#define DISPLAY_TEST 0x0F
bit B_DISPLAY_TEST; // 测试标志位
bit B_SHUTDOWN; // 关断标志位
bit B_DECODE_MODE; // 译码/不译码标志位
unsigned char FLAG_INTENSITY; // 亮度标志
unsigned char FLAG_SCAN_LIMIT; // 位数标志
unsigned char FLAG_LED; // LED标志
// VS7219 演示时显示的数据
unsigned char code Num_Decode[] = { // 译码显示的数据
0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0c,0x0b,0x0d,0x0e,0x0f};
//0 1 2 3 4 5 6 7 8 9 - H E L P 空
unsigned char code Num_NoDecode[] = { // 不译码显示的数据
0x7e,0x30,0x6d,0x79,0x33,0x5b,0x5f,0x70,0x7f,0x7b,
//0 1 2 3 4 5 6 7 8 9
0x40,0x01,0x08,0x49,0x1f,0x4e,0x3d,0x4f,0x47,0x5f,
//-(上)-(中)_(下)三 b C d E F G
0x17,0x37,0x0e,0x63,0x1d,0x7e,0x67,0x73,0x00};
// h H L o(上)o(下)O(大) P q 空
//{0x7e,0x30,0x6d,0x79,0x33,0x5b,0x5f,0x70,0x7f,0x7b,0x00,0x79,0x4f,0x01,0x47,0x4f,0x4f,0x0e,0x08,0x5f,0x1d,0x1d,0x3d,0x40,0x37,0x4f,0x0e,0x67,0x00};
// 0 1 2 3 4 5 6 7 8 9 空 3 E - F E E L _ G o o d - H E L P 空
// 键盘用的（全局变量）
unsigned char key;
sbit KeyBoard_GND = P3^0;
// =★=★=★=★=★=★=★=★=★= LCD1602显示驱动程序 =★=★=★=★=★=★=★=★=★=
/*=============================================================================
LCD1602字符液晶屏显示驱动程序
连接线图: LCM-------51 LCM-------51 LCM------------51
DB0-----P0.0 DB4-----P0.4 RS_LCD-------P2.0
DB1-----P0.1 DB5-----P0.5 RW_LCD-------P2.1
DB2-----P0.2 DB6-----P0.6 E_LCD--------P2.7
DB3-----P0.3 DB7-----P0.7 VLCD接1K2电阻到GND
[注]:AT89C51的晶振频率为12MHz
==============================================================================*/
void Delay5ms(void);
void Delay10ms(void );
void Delay100ms(void);
void Delay200ms(void);
void Delay400ms(void);
void ePutstr(unsigned char x, unsigned char y, unsigned char code *ptr);
void Display( unsigned char dd );
void Disp_XY( char posx,char posy);
void DispOneChar(unsigned char x, unsigned char y, unsigned char Wdata);
void Initial_LCD1602( void );
void LcdWriteCommand( unsigned char CMD, unsigned char AttribC );
void LcdWriteData( char dataW );
void WaitForEnable( void );
void LcdClear(void );
void LCD1602_LOGO(void );
// =★=★=★=★=★=★=★=★=★=★= 短延时 5ms =★=★=★=★=★=★=★=★=★=★=
void Delay5ms(void)
{
unsigned int i = 5552;
while(i--);
}
// =★=★=★=★=★=★=★=★=★=★= 短延时 10ms =★=★=★=★=★=★=★=★=★=★=
void Delay10ms(void )
{
unsigned char i;
for(i = 200;i>0;i--) { ;}
}
// =★=★=★=★=★=★=★=★=★=★= 长延时 100ms =★=★=★=★=★=★=★=★=★=★=
void Delay100ms(void)
{
unsigned char i = 3;
unsigned int j;
while(i--)
{
j=3634;
while(j--);
};
}
// =★=★=★=★=★=★=★=★=★=★= 长延时 200ms =★=★=★=★=★=★=★=★=★=★=
void Delay200ms(void)
{
unsigned char i = 5;
unsigned int j;
while(i--)
{
j=3634;
while(j--);
};
}
// =★=★=★=★=★=★=★=★=★=★= 长延时 400ms =★=★=★=★=★=★=★=★=★=★=
void Delay400ms(void)
{
unsigned char i = 5;
unsigned int j;
while(i--)
{
j=7269;
while(j--);
};
}
/*==============================================================================
从指定位置显示字符串
x：0-15 y：0-1
==============================================================================*/
void ePutstr(unsigned char x, unsigned char y, unsigned char code *ptr)
{
unsigned char i,l=0;
while (ptr[l] > 31) {l++;};
for (i=0;i<l;i++)
{
DispOneChar(x++,y,ptr[i]);
if ( x == 16 )
{
x = 0;
y ^= 1;
}
}
}
/*==============================================================================
演示一行连续字符串，配合上位程序演示移动字串
==============================================================================*/
void Display( unsigned char dd )
{
unsigned char i;
for (i=0;i<16;i++)
//for (i=15;i<0;i--)
{
DispOneChar(i,1,dd++);
Delay200ms();
dd &= 0x7f;
if (dd<32) dd=32;
}
}
/*==============================================================================
显示光标定位 (x 0-15 ; y 0-1)
==============================================================================*/
void Disp_XY( char posx,char posy)
{
unsigned char temp;
temp = posx & 0xf;
posy &= 0x1;
if ( posy )temp |= 0x40;
temp |= 0x80;
LcdWriteCommand(temp,0);
}
/*==============================================================================
按指定位置显示数出一个字符
==============================================================================*/
void DispOneChar(unsigned char x, unsigned char y, unsigned char Wdata)
{
Disp_XY( x, y ); // 定位显示地址
LcdWriteData( Wdata ); // 写字符
}
/*==============================================================================
初始化程序, 必须按照产品资料介绍的初始化过程进行
==============================================================================*/
void Initial_LCD1602( void )
{
Delay5ms();Delay5ms();Delay5ms(); // 延时15ms
LcdWriteCommand( 0x38, 0); // 显示模式设置(不检测忙信号)
Delay5ms(); // 延时5ms
LcdWriteCommand( 0x38, 0); // 共三次
Delay5ms();
LcdWriteCommand( 0x38, 0);
//Delay5ms();
LcdWriteCommand( 0x38, 1); // 显示模式设置(以后均检测忙信号)
LcdWriteCommand( 0x08, 1); // 显示关闭
LcdWriteCommand( 0x01, 1); // 显示清屏
LcdWriteCommand( 0x06, 1); // 显示光标移动设置
LcdWriteCommand( 0x0c, 1); // 显示开及光标设置
}
/*==============================================================================
写控制字符子程序: E=1 RS_LCD=0 RW_LCD=0 写指令
==============================================================================*/
void LcdWriteCommand( unsigned char CMD, unsigned char AttribC )
{
if (AttribC) WaitForEnable(); // 检测忙信号?
RS_LCD = 0; RW_LCD = 0; _nop_();_nop_();
DataPort = CMD; _nop_();_nop_();
// 送控制字子程序
E_LCD = 1; _nop_();_nop_(); E_LCD = 0; // 操作允许脉冲信号
}
/*==============================================================================
当前位置写字符子程序: E =1 RS_LCD=1 RW_LCD=0 写数据
==============================================================================*/
void LcdWriteData( char dataW )
{
WaitForEnable(); // 检测忙信号
RS_LCD = 1; RW_LCD = 0; _nop_();_nop_();
DataPort = dataW; _nop_();_nop_();
E_LCD = 1; _nop_();_nop_(); E_LCD = 0; // 操作允许脉冲信号
}
/*==============================================================================
正常读写操作之前必须检测LCD控制器状态: E=1 RS_LCD=0 RW_LCD=1
DB7: 0 LCD控制器空闲; 1 LCD控制器忙
==============================================================================*/
void WaitForEnable( void )
{
DataPort = 0xff;
RS_LCD =0; RW_LCD = 1; _nop_();
E_LCD = 1; _nop_();_nop_();
while( DataPort & Busy );
E_LCD = 0;
}
/*==============================================================================
显示屏清屏
==============================================================================*/
void LcdClear(void )
{
LcdWriteCommand(0x01,1);
}
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