int main(int argc, char *argv[])
{
char devbusname[] = "/dev/i2c-0";
int i2caddr = AVRSLAVE_ADDR;
char *version;
int count = 0;
int i, rval, stat, b, baud;
printf("Hello, world! I am example3 - reading/writing data from AVR-RS232\n");
rval = rj_open(devbusname, i2caddr);
if (rval < 0) {
printf("open %s: failed, rval = %d\n", devbusname, rval);
exit(1);
}
else
printf("juice: open at 0x%02x: succeeded.\n", i2caddr);
version = rj_getversion();
if (version != NULL)
printf("juice: firmware version = %s\n", version);
else {
printf("juice: rj_getversion failed.\n");
exit(2);
}
printf("\n");
baud = 38400;
if (rj232_setbaud(baud))
printf("rs232: set baud failed.\n");
else
printf("rj232: set baud to %dbps succeeded.\n", baud);
while (1) {
count++;
printf("\33[2K\r%06d:", count);
stat = rj_readstat();
if (stat >= 0) {
for (b = 7; b >= 0; b--)
printf("%c", (stat & (1 << b)) ? '1' : '0');
printf(": ");
fflush(stdout);
if (stat & ADCBUSY)
printf("adcbusy:");
if (stat & EEBUSY)
printf("eebusy:");
if (stat & RXA485)
printf("rs485:");
if (stat & RXA232)
printf("rs232:");
}
fflush(stdout);
if (stat & RXA232) {
rval = rj232_read((unsigned char *)inbuf, BUFSIZE);
printf("\nrs232: ");
for (i = 0; inbuf[i] != 0; i++)
printf("0x%02x ", inbuf[i]);
printf(": %s \n", inbuf);
}
if ((count % 10) == 0) {
sprintf(outbuf, "Hello 232!!! count = %d\n\r", count);
rj232_send((unsigned char *)outbuf, strlen(outbuf));
}
usleep(100000);
}
}
int rpi_car_dev_open()
{
int dev = -1;
dev = rj_open(RPI_CAR_DEV_NAME, AVRSLAVE_ADDR);
return dev;
}
