int main()
{
alt_putstr("Hello from Nios II!\n");
alt_putstr("Input the char you would like to send.\n");
alt_putchar(*parallel_in);
alt_putstr("\n");
int c = alt_getchar();
alt_putstr("\n");
*transmit_enable = 0x0;
*load = 0x0;
*parallel_out = c;
usleep(1000);
*transmit_enable = 0x1;
*load = 0x1;
usleep(50);
*load = 0x0;
while (!*char_sent) {
}
*transmit_enable = 0x0;
while (!*char_received) {
}
alt_putchar(*parallel_in);
alt_putstr("\n");
return 0;
}
void transmitIfBufferNotEmpty(char** pTransmit, char* pBufferHead, char* pBuffer, int* write) {
if(*load) {
*load = 0;
}
char c = '\0';
if(*write) {
c = readBuffer(pTransmit, pBufferHead, pBuffer);
if(c != '\0' && c != 0x60 ) {
alt_putstr("writing: ");
alt_putchar(c);
alt_putstr("\n");
*write = 0;
*data_bus_output = c;
usleep(1000);
*load = 1;
*transmit_enable = 1;
//alt_putchar(c);
*data_bus_LEDs = (*load) | (*transmit_enable << 1) | (*character_sent << 2) | (*character_received << 3);
//*data_bus_LEDs = c;
usleep(500);
}
}
if(*character_sent) {
alt_putstr("char sent\n");
*write = 1;
*transmit_enable = 0;
}
}
void printIfCharacterReceive(int* read) {
if(*character_received & *read) {
*read = 0;
char cRec = (*data_bus_input >> 1) & 0b0011111111;
char parityBit = getParityBit(cRec);
char calcParityBit = isEvenParity(cRec);
if(parityBit == calcParityBit) {
alt_putchar(cRec);
}
} else if(!(*character_received)) {
int main()
{
alt_putstr("Hello from Nios II!\n");
//alt_putstr("Input the char you would like to send.\n");
//alt_putchar(*parallel_in);
//alt_putstr("\n");
//int c = alt_getchar();
//alt_putstr("\n");
int i = 0;
char hello[20] = "Hello, world! abc123";
while (i < 20) {
*transmit_enable = 0x0;
*load = 0x0;
//*parallel_out = c;
*data_bus_output = (hello[i]);
//getBits(*parallel_out);
//alt_putstr("\n*parallel_out\n");
//alt_putchar((*parallel_out >> 1));
//alt_putchar(*parallel_out);
*data_bus_output = setParity(*data_bus_output);
//getBits(*parallel_out);
//alt_putchar(getCharacter(*parallel_out));
//alt_putstr("\ngetCharacter(*parallel_out)\n");
//alt_putchar(getCharacter(*parallel_out));
usleep(1000);
*transmit_enable = 0x1;
*load = 0x1;
usleep(50);
*load = 0x0;
while (!*character_received) {
}
while (!*character_sent) {
}
*transmit_enable = 0x0;
/*if (getParity(*parallel_in)) {
alt_putstr("bad parity\n");
} else {
alt_putstr("good parity\n");
}*/
//getBits(*parallel_in);
alt_putchar(getCharacter(*data_bus_input));
//alt_putstr("\n");
i++;
}
return 0;
}
void uart_put (BYTE d)
{
alt_putchar(d);
}