//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 #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[11:8], Stru[7:6],DontCare[5] Depl[4:0] txch((scr_y << 8) + 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<<8); 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; }