boolean OV7670::begin(void) {
// setup parrallel interface.
// fastPinMode(_WEN, OUTPUT); // WEN
fastDigitalWriteLow(_WEN);
fastPinMode(_VSYNC, INPUT); // VSYNC
fastPinMode(_HREF, INPUT); // HREF
fastPinMode(_RRST, OUTPUT);
fastDigitalWriteHigh(_RRST);
// RCLK 1MHz by TC2 fast-PWM with TOP=OCRA
fastPinMode(_RCLK, OUTPUT);
fastDigitalWriteHigh(_RCLK);
fastPinMode(_OE, OUTPUT);
fastDigitalWriteHigh(_OE);
#ifdef DEBUG
Serial.println(_HREF, HEX);
Serial.println(_RRST, HEX);
Serial.println("Ok?");
while(1);
#endif
Serial.println("pin modes have been set.");
resetRegisters(); // reset all registers
Serial.println("registers reset.");
return writeRegisterValues(REGCONF_QVGA_RGB565)
&& writeRegisterValues(REGCONF_COLOR_SETTING);
}
void go(void) {
while (1) {
trace();
if (S != 0) {
printf("Program is done\n\n");
break;
}
}
resetRegisters();
displayRegisters();
}
int main(void)
{
char command;
/*display menu*/
printf("By: Dennis Konieczek and Nikolas Spendik\n");
printf("d\t dump memory\n");
printf("g\t go - run the entire program\n");
printf("l\t load a file into memory\n");
printf("m\t memory modify\n");
printf("q\t quit\n");
printf("r\t display registers\n");
printf("t\t trace - execute one instruction\n");
printf("w\t write file\n");
printf("z\t reset all registers to zero\n");
printf("?, h\t display list of commands\n");
/*prompt for command and execute corresponding task*/
while (1) {
printf("\n>>Enter command: ");
scanf(" %c", &command);
switch (command) {
case 'd':
case 'D':
printf("\n>>Enter offset: ");
scanf(" %x", &offset);
printf("\n>>Enter length: ");
scanf(" %x", &length);
dumpMemory(&memory, offset, length);
break;
case 'g':
case 'G':
go();
break;
case 'l':
case 'L':
LoadFile(&memory, sizeof(memory));
break;
case 'm':
case 'M':
printf("\n>>Enter starting address: ");
scanf(" %x", &offset);
memoryModify(&memory, offset);
break;
case 'q':
case 'Q':
printf("Exiting... \n");
exit(0);
break;
case 'r':
case 'R':
displayRegisters();
break;
case 't':
case 'T':
trace();
break;
case 'w':
case 'W':
WriteFile(&memory);
break;
case 'z':
case 'Z':
resetRegisters();
break;
case '?':
case 'h':
case 'H':
help();
break;
default:
printf("!wrong command!");
break;
}
}
printf("\n");
return 0;
}
