seguro que esto te servira yo ya me e bajado los datashets del stv5730 e los esquemas e no es complicado de construir ademas es muy interesante pero por desgracia el stv5730 parece que ya esta fora de moda o sea ya no se fabrica mala suerte aver si conseguimos por lo menos un usado
//Sourcecode for BlackBox stv5730a development board
//G. Bjoerneseth, LA5EKA - NORWAY, email is gisle at break dot org
//Processor is PIC16F84, compiler HiTech Picc.exe
//Release is preliminary, and has a few bugs. Please replace
//my callsign with yours
#include <pic.h>
#define TRUE 1
#define FALSE 0
#define CLK RA0
#define DATA RA1
#define CSN RA2
#define BLACK 0
#define BLUE 1
#define GREEN 2
#define CYAN 3
#define RED 4
#define MAGENTA 5
#define YELLOW 6
#define WHITE 7
#define ON 1
#define OFF 0
#define BACKGROUND_ON 1
#define BACKGROUND_OFF 0
#define BUF_SIZE 10
#define SCRBKGCOL 0x0E00
#define CHRBKGCOL 0x0007
#define CHRBORCOL 0x0038
void printascii(unsigned char color, unsigned char background,char c);
void printch(unsigned char color, unsigned char background,char c);
void puts(unsigned char color, unsigned char background, unsigned char x, unsigned char y, const unsigned char *s);
void setPos(unsigned char x, unsigned char y);
void Reset(void);
void setDisplayedLine(unsigned char line, unsigned char Displayed);
void ClsScr(void);
void txch(unsigned int c);
void setControl(unsigned int control);
void setScrOffset(void);
//void setZoom(unsigned int z);
unsigned char scr_x=0, scr_y=0;
unsigned char scr_h=28, scr_v=24; //High text, video generator
#define LA5EKA
//#define LA1ATV
//#define LA7MHA
#ifdef LA1ATV
const unsigned char CONST_Line0[]= "| LA1ATV ";
const unsigned char CONST_Line1[]= " ";
const unsigned char CONST_Line2[]= " Dette er Tonsberg gruppens ";
const unsigned char CONST_Line3[]= " ATV repeater med midlerti ";
const unsigned char CONST_Line4[]= " dig sendetillatelse fra Po ";
const unsigned char CONST_Line5[]= " st og Teletilsynet 231001 ";
const unsigned char CONST_Line6[]= " ";
const unsigned char CONST_Line7[]= " LA1T Repeater ansv. LA7MHA ";
const unsigned char CONST_Line8[]= "____________________________";
const unsigned char CONST_Line9[]= "LA1ATV 23cm JO59FE";
const unsigned char CONST_Line10[]= "1280TX 1246RX 6.0 MHz Audio";
#endif
#ifdef LA5EKA
const unsigned char CONST_Line0[]= "| LA5EKA "; //Line zoomed to 3x
const unsigned char CONST_Line1[]= " Amateur TV Station ";
const unsigned char CONST_Line2[]= " ";
const unsigned char CONST_Line3[]= " WWL Locator: JO59FJ ";
const unsigned char CONST_Line4[]= " QTH is Horten 36masl ";
const unsigned char CONST_Line5[]= " ";
const unsigned char CONST_Line6[]= " QRV - Talkback 70cm ";
const unsigned char CONST_Line7[]= " 433.500MHz ";
const unsigned char CONST_Line8[]= "____________________________";
const unsigned char CONST_Line9[]= "LA5EKA 23cm JO59FJ";
const unsigned char CONST_Line10[]= "TX 15W Ant. Vertical HBL6111";
#endif
#ifdef LA7MHA
const unsigned char CONST_Line0[]= " LA7MHA ";
const unsigned char CONST_Line1[]= " ";
const unsigned char CONST_Line2[]= " ";
const unsigned char CONST_Line3[]= " 23cm ATV ";
const unsigned char CONST_Line4[]= " 23cm ATV ";
const unsigned char CONST_Line5[]= " 23cm ATV ";
const unsigned char CONST_Line6[]= " ";
const unsigned char CONST_Line7[]= " ";
const unsigned char CONST_Line8[]= " ";
const unsigned char CONST_Line9[]= " ";
const unsigned char CONST_Line10[]= " ";
#endif
unsigned int stv_control=0b1101111010100;
#ifdef LA7MHA
unsigned int stv_zoom= 0b1000000000000;
#endif
#ifndef LA7MHA
unsigned int stv_zoom= 0b1000000001010;
#endif
unsigned int stv_color= 0b1000000000001;
unsigned char SyncDetected;
//Sourcecode for BlackBox stv5730a development board
//G. Bjoerneseth, LA5EKA - NORWAY, email is gisle at break dot org
//Processor is PIC16F84, compiler HiTech Picc.exe
//Release is preliminary, and has a few bugs. Please replace
//my callsign with yours
/*------------------------------------------------------------------------------------*/
void main()
{
//unsigned int yy, zz;
unsigned char tt;
SyncDetected=0;
TRISA= 0b00000000;
TRISB= 0b11111101;
RBPU=0; //Clear bit turns on pullup
RA0=1;
RA1=1;
RA2=1;
Reset();
ClsScr();
stv_control&=0xFFFE; //Bit 0 indicates mixed mode
setControl(stv_control);
#ifdef LA7MHA
for(tt=1;tt<8;tt++)
setDisplayedLine(tt, OFF);
#endif
#ifndef LA7MHA
for(tt=0;tt<8;tt++)
setDisplayedLine(tt, OFF);
#endif
puts(WHITE,BACKGROUND_OFF,0,0, CONST_Line0);
puts(BLACK,BACKGROUND_ON,0,1, CONST_Line1);
puts(BLUE,BACKGROUND_ON,0,2, CONST_Line2);
puts(GREEN,BACKGROUND_ON,0,3, CONST_Line3);
puts(CYAN,BACKGROUND_ON,0,4, CONST_Line4);
puts(RED,BACKGROUND_ON,0,5, CONST_Line5);
puts(MAGENTA,BACKGROUND_ON,0,6, CONST_Line6);
puts(YELLOW,BACKGROUND_ON,0,7, CONST_Line7);
puts(WHITE,BACKGROUND_OFF,0,8, CONST_Line8);
puts(YELLOW,BACKGROUND_OFF,0,9, CONST_Line9);
puts(YELLOW,BACKGROUND_OFF,0,10,CONST_Line10);
while(1)
{
if(SyncDetected!=RB0){ //the board is strapped so that the PIC can detect videosync
//see the datasheet.
if(!SyncDetected) //No video input signal detected
{
/*
for(zz=0;zz<1000;zz++)
{
for(yy=0;yy<1000;yy++)
asm("NOP"
;
}
*/
stv_control|=0x0001; //Bit 0 indicates fullpage mode
setControl(stv_control);
for(tt=0;tt<8;tt++)
setDisplayedLine(tt, ON);
puts(YELLOW,BACKGROUND_ON,0,9, CONST_Line9);
puts(YELLOW,BACKGROUND_ON,0,10,CONST_Line10);
RB1=0; //signal out no detected sync
}
else
{
stv_control&=0xFFFE; //Bit 0 indicates mixed mode
setControl(stv_control);
#ifdef LA7MHA
for(tt=1;tt<8;tt++)
setDisplayedLine(tt, OFF);
#endif
#ifndef LA7MHA
for(tt=0;tt<8;tt++)
setDisplayedLine(tt, OFF);
#endif
puts(YELLOW,BACKGROUND_OFF,0,9, CONST_Line9);
puts(YELLOW,BACKGROUND_OFF,0,10,CONST_Line10);
RB1=1; //signal out detected sync
}
SyncDetected=!SyncDetected;
}
}//end while
}
/*------------------------------------------------------------------------------------*/
void setDisplayedLine(unsigned char line, unsigned char Displayed)
{
//line is 0:10
txch(0b0000011000000+line); //SELECT ROW ATTRIBUTES registers (stru=11)
if(Displayed){
txch(0b1000011000000); //Set Row data, row enabled
}
else{
txch(0b1000001000000); //Set Row data, row disabled
}
}
/*------------------------------------------------------------------------------------*/
void Reset(void)
{
txch(0x00DB); //SEND RESET
txch(0x1000);
txch(0x3000);
txch(0x3000);
txch(0x00DB);
txch(0x1000);
txch(0b0000011001100); //SELECT ZOOM REGISTER (1ST CONTROL REG) address 12
txch(stv_zoom); //SEND ZOOM DATA address 12
txch(stv_color); //SEND COLOR DATA address 13
txch(stv_control); //Send control data address 14
txch(0x1000 + (scr_v << 6) + scr_h); //SEND POSITION DATA address 15
txch(0b1000100100100); //SEND MODE DATA address 16
//(M2 indicates mute high on missing sync, M3 is 32lines)
}
/*------------------------------------------------------------------------------------*/
void ClsScr(void)
{
unsigned int j;
txch(0b0000000000000); //Select PAGE ROW 0
for(j=0;j<=307;j++)
txch(0b0001011100001011); //Write incremental data, character d11 (" ")
txch(0b0000000000000); //Select PAGE ROW 0
txch(0b0000011000000); //SELECT ROW ATTRIBUTES, Start at ROW 0
for(j=0;j<=10;j++) //SEND ROW ATTRIB DATA, Chars at current row displayed, and have border
txch(0b1000011000000); //ROW number increments, 0-10.
//Erase screen with space to prevent initial garbage
}
/*------------------------------------------------------------------------------------*/
void setControl(unsigned int control)
{
txch(0b0000011001110);
txch(control);
}
/*------------------------------------------------------------------------------------*/
void setPos(unsigned char x, unsigned char y)
{
if( (x<28) && (y<11))
{
scr_x=x; scr_y=y;
}
}
/*------------------------------------------------------------------------------------*/
void puts(unsigned char color, unsigned char background, unsigned char x, unsigned char y, const unsigned char *s)
{
setPos(x, y);
while(*s)
printascii(color,background,*s++);
}
/*------------------------------------------------------------------------------------*/
void printascii(unsigned char color, unsigned char background,char c)
{
if(c==" ") {printch(color,background,0x0B);}
else if(c=="/") {printch(color,background,0x28);}
else if(c=="|") {printch(color,background,110);} //sat dish
else if(c==":") {printch(color,background,0x26);}
else if(c=="-") {printch(color,background,0x0A);}//den andre er nr 0d100
else if(c=="_") {printch(color,background,114);}
else if(c==".") {printch(color,background,0x27);}
else if((c>=65) && (c<95)) {printch(color,background,c-53);}
else if((c>=97) && (c<123)) {printch(color,background,c-55);}
else if((c>=48) && (c<60)) {printch(color,background,c-48);}
}
/*------------------------------------------------------------------------------------*/
void printch(unsigned char color, unsigned char background,char c)
{
unsigned int OutData;
//Write pointer is Buf[11
, Stru[7
,DontCare[5] Depl[4:0]
txch((scr_y <<
+ scr_x); //Set write pointer - row(y) + character number(x). Stru is 00 for page address
scr_x++;
if (scr_x >= 28)
{
scr_x=0;
scr_y++;
if(scr_y >= 11)
{ scr_x=27; scr_y=10;}
}
//[BE,11][R,10][G,9][B,8][BK,7][Charcode, 6:0]
//txch(0b1 0 100 0 0000000+c);
OutData=0b1000000000000;
if(background){
OutData|=0b0100000000000;
}
OutData=OutData|(color<<
;
txch(OutData+c);
}
/*------------------------------------------------------------------------------------*/
void setScrOffset(void)
{
txch(0b0000011001111);
txch(0x1000 + (scr_v << 6) + scr_h);
}
/*------------------------------------------------------------------------------------*/
/*
void setZoom(unsigned int zoom)
{
txch(0b0000011001100); //SELECT ZOOM REGISTER (1ST CONTROL REG) address 12
txch(zoom);
}
*/
/*------------------------------------------------------------------------------------*/
//This is the function that writes to the stv device
void txch(unsigned int c)
{
unsigned char bitno;
CLK = 1;
DATA= 1;
CSN = 1;
CSN = 0;
bitno = 16;
do
{
CLK = 0;
if(c & 0x8000)
{ DATA = 1;}
else
{ DATA = 0;}
CLK = 1;
c = (c << 1);
} while(--bitno);
CSN = 1;
}
