?? shiftled.c
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/*
*/
#include <LPC2103.H> // LPC2103 MPU Register
#include "shiftled.h"
//#include <intrins.h>
// GPIO0.04 -> SERIAL DATA OUT,FOR ST2221 DRV
// GPIO0.05 -> CLK for ST2221
// GPIO0.06 -> ENABLE for ST2221
// GPIO0.07 -> LATCH for ST2221
// Define ST2221 PinIO Mask
#define ST2221_DAT 0x00000010
// P0.04(0000 0000 0000 0x00 0000 0000 0001 0000)
#define ST2221_CLK 0x00000020
// P0.05(0000 0000 0000 x000 0000 0000 0020 0000)
#define ST2221_EN 0x00000040
// P0.06(0000 0000 0000 00x0 0000 0000 0400 0000)
#define ST2221_LTH 0x0000080
// P0.07(0000 0000 000x 0000 0000 0000 8000 0000)
#define EN_set() IOSET = ST2221_EN
// EN = 1 (Select Instruction)
#define EN_clr() IOCLR = ST2221_EN
// EN = 0 (Select Data)
#define DAT_set() IOSET = ST2221_DAT
// DAT = 1 (Read)
#define DAT_clr() IOCLR = ST2221_DAT
// DAT = 0 (Write)
#define CLK_set() IOSET = ST2221_CLK
// CLK = 1 (Enable)
#define CLK_clr() IOCLR = ST2221_CLK
// CLK = 0 (Disable)
#define LTH_set() IOSET = ST2221_LTH
// CLK = 1 (Enable)
#define LTH_clr() IOCLR = ST2221_LTH
// CLK = 0 (Disable)
extern void delay(unsigned long int count1);
extern struct Setting_Buf Set_Buf;
unsigned char uBuffer[4];
unsigned char Comm_buffer[4];
unsigned char Refreshbit;
unsigned char Global_V1;
struct DisplayBuf{
unsigned char TAR[4]; //MSB..LSB (TAR[3] TAR[2] TAR[1] TAR[0])
unsigned char OUT[4]; //MSB..LSB (OUT[3] OUT[2] OUT[1] OUT[0])
unsigned char DIF[5]; //SIGN MSB..LSB (DIF[4] DIF[2] DIF[1] DIF[0])
};
struct DisplayBuf Dis_Buf;
// a
// ---- 0 -- 00111111, 0x3f
// f| |b 1 -- 00000110
// | g |
// ------
// e| |c
// | |
// ------ o dp
// d
//
const char SEGMENT[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x00,0x76,0x77,0x38,0x78,0x40};
/* code char SEGMENT[]={0xFA,0x60,0xDC,0xF4,0x66,0xB6,0xBE,0xE0,0xFE,0xF6,0x00}; */
//code char SEGMENT[]={0xFC,0x60,0xDA,0xF2,0x66,0xB6,0xBE,0xE0,0xFE,0xF6,0x00, 0x6e, 0xde, 0x1c,0x1e, 0x02};
/* 0, 1,2,3,4,5,6,7,8,9, off, H,A,L,T,- */
//t,A,r,o,u,d,I,F,C,n,O,h,S,P,E,1,2,3
//0x78,0x77,0x50,0x5c,0x1c,0x5e,0x30,0x71,0x39,0x54,0x3f,0x74,0x6d,0x73,0x79
/*const char tAr[]="tAr ";
const char Out[]="Out ";
const char dIF[]="dIF ";
const char InCt[]="InCt";
const char InCo[]="InCo";
const char Sht[]="Sht ";
const char PrS[]="PrS ";
const char bS[]=" S";
const char bo[]=" o";
const char PE[]="PE";
*/
//***********************************seven segment display control & display*****************************
void Display_Function_Name(unsigned char *name)
{
signed char a;
clear_Display();
for (a=4; a>0;a--)
{
Search_FontMap(name[4-a]);
Dis_Buf.TAR[a-1]=Global_V1;
}
Display_buffer();
}
void Display_Func(unsigned char *Buf, short Buf_Value, unsigned char change_tag)
{
signed char i;
signed short x,temp, temp1;
//************************************************clear buffer with option
if(change_tag==1)
{
for (i=0;i<4;i++)
{
Dis_Buf.TAR[i]=SEGMENT[10];
}
}
for (i=0;i<4;i++)
{
Dis_Buf.OUT[i]=SEGMENT[10];
}
for (i=0;i<5;i++)
{
Dis_Buf.DIF[i]=SEGMENT[10];
}
// Display_buffer();
//****************************************************
if(change_tag==1)
{
for (i=4; i>0;i--)
{
Search_FontMap(Buf[4-i]);
Dis_Buf.TAR[i-1]=Global_V1;
}
}
x=Buf_Value;
temp1=x%1000;
temp= x/1000;
Dis_Buf.OUT[3]=SEGMENT[temp];
temp=temp1/100;
temp1=temp1 % 100;
temp = temp & 0x0f;
Dis_Buf.OUT[2]=SEGMENT[temp];
temp=temp1/10;
temp1=temp1 % 10;
Dis_Buf.OUT[1]=SEGMENT[temp];
Dis_Buf.OUT[0]=SEGMENT[temp1];
Display_buffer();
}
void Search_FontMap(unsigned char F)
{
switch (F)
{
case 't':
Global_V1= 0xF8;
break;
case 'A':
Global_V1= 0xF7;
break;
case 'r':
Global_V1= 0xD0;
break;
case 'o':
Global_V1= 0xDc;
break;
case 'u':
Global_V1= 0x9c;
break;
case 'd':
Global_V1= 0xDe;
break;
//t,A,r,o,u,d,I,F,C,n,O,h,S,P,E
//0x78,0x77,0x50,0x5c,0x1c,0x5e,0x30,0x71,0x39,0x54,0x3f,0x74,0x6d,0x73,0x79
case 'I':
Global_V1= 0xB0;
break;
case 'F':
Global_V1= 0xF1;
break;
case 'C':
Global_V1= 0xB9;
break;
case 'n':
Global_V1= 0xD4;
break;
case 'O':
Global_V1= 0xBf;
break;
case 'h':
Global_V1= 0xF4;
break;
case 'S':
Global_V1= 0xEd;
break;
case 'P':
Global_V1= 0xF3;
break;
case 'E':
Global_V1= 0xF9;
break;
case '1':
Global_V1= 0x06;
break;
case '2':
Global_V1= 0x5b;
break;
case '3':
Global_V1= 0x4f;
break;
case '4':
Global_V1= 0x66;
break;
case '5':
Global_V1= 0x6d;
break;
case '6':
Global_V1= 0x7d;
break;
case '7':
Global_V1= 0x07;
case '8':
Global_V1= 0x7f;
break;
case '9':
Global_V1= 0x6f;
break;
case '-':
Global_V1=0x40;
break;
case 'y':
Global_V1=0xee;
break;
case 'H':
Global_V1=0xf6;
break;
case 'N':
Global_V1=0xb7;
break;
default:
Global_V1= 0x00;
break;
}
}
/********************************************************************************/
/* Convert buffer to display buffer for display code conversion */
/********************************************************************************/
void convert_display(void)
{
char Zerobit;
short x,temp, temp1;
char * PtBuf;
Zerobit=0;
PtBuf=&Set_Buf.Target_Cnt;
x= *PtBuf;
PtBuf++;
x= x | (*PtBuf <<8);
Zerobit=0;
temp1=x%1000;
temp= x/1000;
if (temp == 0)
{
Dis_Buf.TAR[3]=SEGMENT[10]; // off display
Zerobit=1;
}
else
{
Dis_Buf.TAR[3]=SEGMENT[temp];
}
temp=temp1/100;
temp1=temp1 % 100;
temp = temp & 0x0f;
if ((temp==0x00) && (Zerobit==1)) Dis_Buf.TAR[2]=SEGMENT[10]; // off 2 segments
else
{
Zerobit=0;
Dis_Buf.TAR[2]=SEGMENT[temp];
}
temp=temp1/10;
temp1=temp1 % 10;
if ((temp==0x00) && (Zerobit==1))
{
Dis_Buf.TAR[1]=SEGMENT[10]; // off 3 segments
}
else Dis_Buf.TAR[1]=SEGMENT[temp];
Dis_Buf.TAR[0]=SEGMENT[temp1];
///OUTPUT
x=Set_Buf.Output_Cnt;
Zerobit=0;
temp1=x%1000;
temp= x/1000;
if (temp == 0)
{
Dis_Buf.OUT[3]=SEGMENT[10]; // off display
Zerobit=1;
}
else
{
Dis_Buf.OUT[3]=SEGMENT[temp];
}
temp=temp1/100;
temp1=temp1 % 100;
temp = temp & 0x0f;
if ((temp==0x00) && (Zerobit==1)) Dis_Buf.OUT[2]=SEGMENT[10]; // off 2 segments
else
{
Zerobit=0;
Dis_Buf.OUT[2]=SEGMENT[temp];
}
temp=temp1/10;
temp1=temp1 % 10;
if ((temp==0x00) && (Zerobit==1))
{
Dis_Buf.OUT[1]=SEGMENT[10]; // off 3 segments
}
else Dis_Buf.OUT[1]=SEGMENT[temp];
Dis_Buf.OUT[0]=SEGMENT[temp1];
// DIFFERENT
x=Set_Buf.Target_Cnt - Set_Buf.Output_Cnt;
if (x<0)
{
Dis_Buf.DIF[4]=SEGMENT[15]; //"-" sign
x = ~x+1; //1's complement
IOSET = 0x00040000; //"-" signed ON
}
else
{
Dis_Buf.DIF[4]=SEGMENT[10]; //" " sign
IOCLR = 0x00040000;
}
Zerobit=0;
temp1=x%1000;
temp= x/1000;
if (temp == 0)
{
Dis_Buf.DIF[3]=SEGMENT[10]; // off display
Zerobit=1;
}
else
{
Dis_Buf.DIF[3]=SEGMENT[temp];
}
temp=temp1/100;
temp1=temp1 % 100;
temp = temp & 0x0f;
if ((temp==0x00) && (Zerobit==1)) Dis_Buf.DIF[2]=SEGMENT[10]; // off 2 segments
else
{
Zerobit=0;
Dis_Buf.DIF[2]=SEGMENT[temp];
}
temp=temp1/10;
temp1=temp1 % 10;
if ((temp==0x00) && (Zerobit==1))
{
Dis_Buf.DIF[1]=SEGMENT[10]; // off 3 segments
}
else Dis_Buf.DIF[1]=SEGMENT[temp];
Dis_Buf.DIF[0]=SEGMENT[temp1];
}
void clear_Display(void)
{
char i;
for (i=0;i<4;i++)
{
Dis_Buf.TAR[i]=SEGMENT[10];
}
for (i=0;i<4;i++)
{
Dis_Buf.OUT[i]=SEGMENT[10];
}
for (i=0;i<4;i++)
{
Dis_Buf.DIF[i]=SEGMENT[10];
}
Display_buffer();
}
/*******************************************************************/
/* Display Display_bufferX to seven segment */
/*******************************************************************/
void Display_buffer(void)
{
signed char i;
for (i=4; i>0; i--) shift_byte(Dis_Buf.DIF[i-1]);
for (i=4; i>0; i--) shift_byte(Dis_Buf.OUT[i-1]);
for (i=4; i>0; i--) shift_byte(Dis_Buf.TAR[i-1]);
E_Display();
Refreshbit=0;
}
// ROUTINE TO DISPLAY THE DATA TO ST2221
// SHIFT BYTE TO ST2221
void shift_byte(unsigned char x)
{
unsigned char i,temp;
LTH_clr();
CLK_clr();
for (i=0; i<8; i++)
{
temp=x;
if ((temp & 0x80) == 0x80) DAT_set();
else DAT_clr();
x= x << 1;
shift_bus();
}
}
/****************************************************************/
/*Shift display data bus */
/****************************************************************/
void shift_bus (void)
{
delay(10000);
LTH_clr();
CLK_set();
delay(10000);
CLK_clr();
delay(10000);
}
/****************************************************************/
/*Enable Display strobe */
/****************************************************************/
void E_Display (void)
{
LTH_set();
delay(100000);
LTH_clr();
EN_clr();
DAT_clr();
}
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