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#include "WProgram.h" void SPI_MasterInit(void); void clearScreen(boolean mode); void blinkStatus(void); void resetCursor(void); #define PIN_SYNC 8 #define PIN_VIDEO 9 #define PIN_LED 12 #define PIN_AUDIO 11 #define _SYNC 0x00 #define _BLACK 0x01 #define _GRAY 0x02 #define _WHITE 0x03 #define _LONG_SYNC 19 #define _SHORT_SYNC 2 #define _LONG_SYNC_DELAI 2 #define _SHORT_SYNC_DELAI 30 #define _NB_PIXELS 29 #define _NB_LIGNES 19 //#define _NB_TV_LIGNES 525 #define _NB_TV_LIGNES 262 #define _COMPENS_BOUCLE 7 #define _COMPENS_IF_SERIAL 17 #define _BAUD_RATE 19200 byte memVideo[_NB_PIXELS][_NB_LIGNES]; byte index, index2; int ligne; char c; int cx=(_NB_PIXELS / 2), cy=(_NB_LIGNES / 2); byte couleur = _BLACK; void SPI_MasterInit(void) { /* Set MOSI and SCK output, all others input */ DDRD = (1<<DDB0)|(1<<DDB1); /* Enable SPI, Master, set clock rate fck/16 */ SPCR = (1<<SPE)|(1<<MSTR)|(1<<SPR0); } void clearScreen(boolean mode) { for (index2 = 0; index2 < _NB_LIGNES; index2++) for (index = 0; index < _NB_PIXELS; index++) if (!mode) { memVideo[index][index2] = _BLACK; } else { memVideo[index][index2] = (index + index2) % 3 + 1; } memVideo[0][0] = _WHITE; resetCursor(); } void resetCursor(void) { cx=(_NB_PIXELS / 2); cy=(_NB_LIGNES / 2); } void blinkStatus(void) { int ii; pinMode(PIN_LED, OUTPUT); for(ii=0;ii<3;ii++) { digitalWrite(PIN_LED, HIGH); delay(75); digitalWrite(PIN_LED, LOW); delay(75); digitalWrite(PIN_LED, HIGH); if (ii < 2) delay(75); } } void setup() { pinMode(PIN_SYNC, OUTPUT); pinMode(PIN_VIDEO, OUTPUT); pinMode(PIN_AUDIO, OUTPUT); digitalWrite(PIN_SYNC, HIGH); digitalWrite(PIN_VIDEO, HIGH); //SPI_MasterInit(); Serial.begin(_BAUD_RATE); Serial.println("GO"); clearScreen(true); blinkStatus(); } void loop() { // SYNC VERT A // ligne 1 LONG SYNC PORTB = _SYNC; delayMicroseconds(_LONG_SYNC); PORTB = _BLACK; delayMicroseconds(_LONG_SYNC_DELAI); PORTB = _SYNC; delayMicroseconds(_LONG_SYNC); PORTB = _BLACK; delayMicroseconds(_LONG_SYNC_DELAI); // ligne 2 LONG SYNC PORTB = _SYNC; delayMicroseconds(_LONG_SYNC); PORTB = _BLACK; delayMicroseconds(_LONG_SYNC_DELAI); PORTB = _SYNC; delayMicroseconds(_LONG_SYNC); PORTB = _BLACK; delayMicroseconds(_LONG_SYNC_DELAI); // ligne 3 MIXTE SYNC PORTB = _SYNC; delayMicroseconds(_LONG_SYNC); PORTB = _BLACK; delayMicroseconds(_LONG_SYNC_DELAI); PORTB = _SYNC; delayMicroseconds(_SHORT_SYNC); PORTB = _BLACK; delayMicroseconds(_SHORT_SYNC_DELAI); // ligne 4 SHORT SYNC PORTB = _SYNC; delayMicroseconds(_SHORT_SYNC); PORTB = _BLACK; delayMicroseconds(_SHORT_SYNC_DELAI); PORTB = _SYNC; delayMicroseconds(_SHORT_SYNC); PORTB = _BLACK; delayMicroseconds(_SHORT_SYNC_DELAI); // ligne 5 SHORT SYNC PORTB = _SYNC; delayMicroseconds(_SHORT_SYNC); PORTB = _BLACK; delayMicroseconds(_SHORT_SYNC_DELAI); PORTB = _SYNC; delayMicroseconds(_SHORT_SYNC); PORTB = _BLACK; delayMicroseconds(_SHORT_SYNC_DELAI-_COMPENS_BOUCLE); // IMAGE for (ligne = 0; ligne < _NB_TV_LIGNES; ligne++) { //** synchro // HSync PORTB = _SYNC; delayMicroseconds(4.7); // Black PORTB = _BLACK; delayMicroseconds(4.7); //** image ligne 51.5 uS for (index = 0; index < _NB_PIXELS; index++) { PORTB = memVideo[index][ligne>>4]; PORTB = PORTB; PORTB = PORTB; } delayMicroseconds(1.4); // 4 uS PORTB = _BLACK; PORTB = _BLACK; PORTB = _BLACK; PORTB = _BLACK; PORTB = _BLACK; PORTB = _BLACK; PORTB = _BLACK; PORTB = _BLACK; PORTB = _BLACK; } // SYNC VERT B // ligne 310 LONG SYNC PORTB = _SYNC; delayMicroseconds(_SHORT_SYNC); PORTB = _BLACK; delayMicroseconds(_SHORT_SYNC_DELAI); PORTB = _SYNC; delayMicroseconds(_SHORT_SYNC); PORTB = _BLACK; delayMicroseconds(_SHORT_SYNC_DELAI); // ligne 311 SHORT SYNC PORTB = _SYNC; delayMicroseconds(_SHORT_SYNC); PORTB = _BLACK; delayMicroseconds(_SHORT_SYNC_DELAI); PORTB = _SYNC; delayMicroseconds(_SHORT_SYNC); PORTB = _BLACK; delayMicroseconds(_SHORT_SYNC_DELAI); // ligne 312 SHORT SYNC PORTB = _SYNC; delayMicroseconds(_SHORT_SYNC); PORTB = _BLACK; delayMicroseconds(_SHORT_SYNC_DELAI); PORTB = _SYNC; delayMicroseconds(_SHORT_SYNC); PORTB = _BLACK; delayMicroseconds(_SHORT_SYNC_DELAI-_COMPENS_BOUCLE-_COMPENS_IF_SERIAL); if (Serial.available()) { c = Serial.read(); switch (c) { case '4' : if (cx>0) cx--; break; case '6' : if (cx<29) cx++; break; case '8' : if (cy>0) cy--; break; case '2' : if (cy<18) cy++; break; case '5' : memVideo[cx][cy] = couleur; break; case 'n' : couleur = _BLACK; break; case 'g' : couleur = _GRAY; break; case 'b' : couleur = _WHITE; break; case 'c' : clearScreen(false); break; case 'f' : clearScreen(true); break; } } }

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