unsigned int __stdcall ioThreadCheetah(void* inst)
{
bt_data *data;
BioTac bt_err_code;
double length_of_data_in_second;
int number_of_samples;
int number_of_loops;
int i;
// Set the duration of the run time
length_of_data_in_second = 0.01;
number_of_samples = (int)(BT_SAMPLE_RATE_HZ_DEFAULT * length_of_data_in_second);
/*************************************/
/* --- Configure the save buffer --- */
/*************************************/
data = bt_configure_save_buffer(number_of_samples);
/*******************************/
/* --- Configure the batch --- */
/*******************************/
bt_err_code = bt_cheetah_configure_batch(ch_handle, &biotac, number_of_samples);
if (bt_err_code < 0)
{
bt_display_errors(bt_err_code);
exit(1);
}
else
{
printf("\nConfigured the batch\n");
}
/***************************************************************/
/* --- Collect the batch and display the data (if desired) --- */
/***************************************************************/
number_of_loops = (int)(number_of_samples / ((double)(biotac.frame.frame_size * biotac.batch.batch_frame_count)));
printf("Start collecting BioTac data for %.3f second(s)...\n", length_of_data_in_second);
while (_ioThreadCheetahRun)
{
for (i = 0; i < number_of_loops; i++)
{
// To print out data on Terminal, set the fourth argument to YES (NO by default)
bt_cheetah_collect_batch(ch_handle, &biotac, data, NO);
ProcessMessage(data, number_of_samples);
SaveBioTacData();
}
bt_reset_save_buffer();
}
/***********************/
/* --- Free memory --- */
/***********************/
free(data);
return 0;
}
bool InitBioTacCheetah()
{
BioTac bt_err_code;
int i;
/**************************************************************************/
/* --- Initialize BioTac settings (only default values are supported) --- */
/**************************************************************************/
biotac.spi_clock_speed = BT_SPI_BITRATE_KHZ_DEFAULT;
biotac.number_of_biotacs = 0;
biotac.sample_rate_Hz = BT_SAMPLE_RATE_HZ_DEFAULT;
biotac.frame.frame_type = 0;
biotac.batch.batch_frame_count = BT_FRAMES_IN_BATCH_DEFAULT;
//biotac.batch.batch_ms = BT_BATCH_MS_DEFAULT;
biotac.batch.batch_ms = 10; // 10msec, 1 frame per 1 batch
// Check if any initial settings are wrong
if (MAX_BIOTACS_PER_CHEETAH != 3 && MAX_BIOTACS_PER_CHEETAH != 5)
{
bt_err_code = BT_WRONG_MAX_BIOTAC_NUMBER;
bt_display_errors(bt_err_code);
//exit(1);
return false;
}
/******************************************/
/* --- Initialize the Cheetah devices --- */
/******************************************/
ch_handle = bt_cheetah_initialize(&biotac);
/*********************************************************/
/* --- Get and print out properties of the BioTac(s) --- */
/*********************************************************/
for (i = 0; i < MAX_BIOTACS_PER_CHEETAH; i++)
{
bt_err_code = bt_cheetah_get_properties(ch_handle, i+1, &(biotac_property[i]));
if (biotac_property[i].bt_connected == YES)
{
(biotac.number_of_biotacs)++;
}
if (bt_err_code)
{
bt_display_errors(bt_err_code);
//exit(1);
return false;
}
}
// Check if any BioTacs are detected
if (biotac.number_of_biotacs == 0)
{
bt_err_code = BT_NO_BIOTAC_DETECTED;
bt_display_errors(bt_err_code);
//return bt_err_code;
return false;
}
else
{
printf("\n%d BioTac(s) detected.\n\n", biotac.number_of_biotacs);
}
return true;
}
//=========================================================================
// MAIN PROGRAM
//=========================================================================
int main(void)
{
/****************************/
/* --- Define variables --- */
/****************************/
bt_info biotac;
bt_property biotac_property[MAX_BIOTACS_PER_CHEETAH];
bt_data *data;
BioTac bt_err_code;
Cheetah ch_handle;
int i;
int length_of_data_in_second;
int number_of_samples;
int number_of_loops;
/**************************************************************************/
/* --- Initialize BioTac settings (only default values are supported) --- */
/**************************************************************************/
biotac.spi_clock_speed = BT_SPI_BITRATE_KHZ_DEFAULT;
biotac.number_of_biotacs = 0;
biotac.sample_rate_Hz = BT_SAMPLE_RATE_HZ_DEFAULT;
biotac.frame.frame_type = 0;
biotac.batch.batch_frame_count = BT_FRAMES_IN_BATCH_DEFAULT;
biotac.batch.batch_ms = BT_BATCH_MS_DEFAULT;
// Set the duration of the run time
length_of_data_in_second = 3;
number_of_samples = (int)(BT_SAMPLE_RATE_HZ_DEFAULT * length_of_data_in_second);
// Check if any initial settings are wrong
if (MAX_BIOTACS_PER_CHEETAH != 3 && MAX_BIOTACS_PER_CHEETAH != 5)
{
bt_err_code = BT_WRONG_MAX_BIOTAC_NUMBER;
bt_display_errors(bt_err_code);
exit(1);
}
/******************************************/
/* --- Initialize the Cheetah devices --- */
/******************************************/
ch_handle = bt_cheetah_initialize(&biotac);
/*********************************************************/
/* --- Get and print out properties of the BioTac(s) --- */
/*********************************************************/
for (i = 0; i < MAX_BIOTACS_PER_CHEETAH; i++)
{
bt_err_code = bt_cheetah_get_properties(ch_handle, i+1, &(biotac_property[i]));
if (biotac_property[i].bt_connected == YES)
{
(biotac.number_of_biotacs)++;
}
if (bt_err_code)
{
bt_display_errors(bt_err_code);
exit(1);
}
}
// Check if any BioTacs are detected
if (biotac.number_of_biotacs == 0)
{
bt_err_code = BT_NO_BIOTAC_DETECTED;
bt_display_errors(bt_err_code);
return bt_err_code;
}
else
{
printf("\n%d BioTac(s) detected.\n\n", biotac.number_of_biotacs);
}
// The programs stops here until it accepts [Enter] key hit
printf("Press [Enter] to continue ...");
fflush(stdout);
getchar();
/*************************************/
/* --- Configure the save buffer --- */
/*************************************/
data = bt_configure_save_buffer(number_of_samples);
/*******************************/
/* --- Configure the batch --- */
/*******************************/
bt_err_code = bt_cheetah_configure_batch(ch_handle, &biotac, number_of_samples);
if (bt_err_code < 0)
{
bt_display_errors(bt_err_code);
exit(1);
}
else
{
printf("\nConfigured the batch\n");
}
/***************************************************************/
/* --- Collect the batch and display the data (if desired) --- */
/***************************************************************/
number_of_loops = (int)(number_of_samples / ((double)(biotac.frame.frame_size * biotac.batch.batch_frame_count)));
printf("Start collecting BioTac data for %d second(s)...\n", length_of_data_in_second);
for (i = 0; i < number_of_loops; i++)
{
// To print out data on Terminal, set the fourth argument to YES (NO by default)
bt_cheetah_collect_batch(ch_handle, &biotac, data, NO);
}
/*********************/
/* --- Save data --- */
/*********************/
bt_save_buffer_data("output.txt", data, number_of_samples);
/**************************/
/* --- Close and exit --- */
/**************************/
printf("Press [Enter] to close the program");
fflush(stdout);
getchar();
free(data);
bt_cheetah_close(ch_handle);
return 0;
}