void SysTick_Handler (void) {
static uint_32 tick = 0;
tick++;
if (tick%100 == 0) {
//uart_send_buffer(0, "BEEP\r\n", strlen("BEEP\r\n"));
sprintf((char *)buf, "ADC=%d\r\n\0", adcval_filtered);
uart_send_buffer(0, buf, strlen((const char *)buf));
}
//pwm_systick_control(90);
}
int main(int argc, char *argv[]) {
static struct option long_options[] = {
{ "uart-port", required_argument, 0, 'p' },
{ "baud-rate", required_argument, 0, 'b' },
{ "closed-loop", no_argument, 0, 'c' },
{ "no-reply", no_argument, 0, 'n' },
{ "colors", no_argument, 0, 'j' },
{ "quiet", no_argument, 0, 'q' },
{ "help", no_argument, 0, 'h' },
{ 0, 0, 0, 0 }
};
int option;
int option_index = 0;
while ((option = getopt_long(argc, argv, "p:b:cnjqh", long_options, &option_index)) != -1) {
switch (option) {
case 0:
break;
case 'p':
if (optarg) {
option_port = optarg;
}
break;
case 'b':
if (optarg) {
option_baud = optarg;
}
break;
case 'c':
option_closed_loop = 1;
break;
case 'n':
option_no_reply = 1;
break;
case 'j':
option_colors = 1;
break;
case 'q':
option_quiet = 1;
break;
case 'h':
puts("Usage: uartaccessory [options]");
puts("Options:");
puts(" -h, --help Display this information");
puts(" -p, --uart-port Set the uart port. Example: use -p /dev/ttyUSB3 or simply port number -p 3. Default is /dev/ttyUSB0");
puts(" -b, --baud-rate Set the baud rate. Example: use -b 57600. Standard values are permitted. Default is 115200");
puts(" -c, --closed-loop Enable closed loop mode where accessory TX/RX are logically coupled and ttyUSBx disabled");
puts(" -n, --no-reply Disable sending of RX data packets (reply to request)");
puts(" -j, --colors Enable colors to show TX vs RX packets");
puts(" -q, --quiet Quiet mode");
return EXIT_SUCCESS;
}
}
accessory_device *ad = NULL;
accessory_init();
int need_quit = 0;
while (need_quit == 0) {
puts("");
puts("Looking for accessory device... Press Q to quit");
while (1) {
int key = getasynckey();
if (key == 'Q' || key == 'q') {
need_quit = 1;
break;
}
ad = accessory_get_device();
if (ad != NULL) {
printf(" - Found Android device with ID=%04x:%04x now connected as ID=%04x:%04x, version %d\n", ad->vendor_id, ad->product_id, ad->aoa_vendor_id, ad->aoa_product_id, ad->aoa_version);
break;
}
usleep(500000);
}
if (need_quit != 0)
break;
puts("");
puts("Capture and show data flow coming from Android device... Press Q to quit");
unsigned char *buffer = malloc(ACCESSORY_MODE_BUFFER_SIZE);
if (buffer == NULL)
return EXIT_FAILURE;
if (option_closed_loop == 0) {
char device_name[256];
if (option_port[0] == '/')
strcpy(device_name, option_port);
else {
strcpy(device_name, "/dev/ttyUSB");
strcpy(&device_name[11], option_port);
}
int i;
speed_t baud_rate = B0;
int requested_baud = atoi(option_baud);
for (i = 0; i < ARRAY_LEN(baud_table); i++) {
if (baud_table[i].baud_rate == requested_baud) {
baud_rate = baud_table[i].speed;
break;
}
}
if (baud_rate == B0) {
fprintf(stderr, "Unrecognized baud rate: '%s'\n", option_baud);
exit(1);
}
if (uart_open(device_name, baud_rate, 0) < 0) {
char message[256];
snprintf(message, sizeof message, "Unable to open serial port %s", device_name);
perror(message);
return EXIT_FAILURE;
}
}
while (1) {
int key = getasynckey();
if (key == 'Q' || key == 'q') {
need_quit = 1;
break;
}
int cnt = accessory_receive_data(ad, buffer, ACCESSORY_MODE_BUFFER_SIZE);
if (cnt > 0) {
print_buffer(buffer, cnt, 0);
if (option_closed_loop == 0)
uart_send_buffer(buffer, cnt);
else
if (option_no_reply == 0) {
accessory_send_data(ad, buffer, cnt);
print_buffer(buffer, cnt, 1);
}
} else if (cnt == LIBUSB_ERROR_NO_DEVICE) {
puts("AOA device disconnected !");
break;
}
if (option_no_reply == 0 && option_closed_loop == 0) {
cnt = uart_receive_buffer_timout(buffer, ACCESSORY_MODE_BUFFER_SIZE, 0);
if (cnt > 0) {
accessory_send_data(ad, buffer, cnt);
print_buffer(buffer, cnt, 1);
}
}
}
free(buffer);
}
accessory_free_device(ad);
accessory_finalize();
uart_close();
return EXIT_SUCCESS;
}
void uart_send_byte(uint8_t b) {
while (!uart_send_complete()) {}
bytebuf = b;
uart_send_buffer(&bytebuf,1);
}
