PGA450-Q1: Object detection at two different distance

Hi Arun,
To repurpose the existing "TIDA-00151 UART & LIN Demo Firmware" example code to enable multiple object detection , you will need to update/modify the following if-statement to store an array of TimeOfFlight results.

if ( data_FIFO[lcv] > DetectionThreshold) {

EN_CTRL = 0x8C; //log free running timer
FRT_T2.u8[0]=FRT_MSB;
FRT_T2.u8[1]=FRT_LSB;
if (FRT_T1.u16 > FRT_T2.u16) {
TimeOfFlight.u16 = 65535+FRT_T2.u16-FRT_T1.u16;
}
else {
TimeOfFlight.u16 = FRT_T2.u16-FRT_T1.u16;
}
MaskEcho = 1;
//break; // when enabled, break for loop as soon as an object is found, and not all FIFO will be filled

}

Be sure to keep the break; option disabled so the threshold comparison will continue to run after the first object has been logged.
You will need to create a new/custom command to read out the array of ToF results similarly to Command 2's "Read first instance of threshold crossing.":

void command2 (void){ // Transmit Results (2 bytes) to Master

UART_send_data (TimeOfFlight.u8[0]);
UART_send_data (TimeOfFlight.u8[1]);
UART_send_data (~(checksum_add_cary (TimeOfFlight.u8[0], TimeOfFlight.u8[1])));
}

Instead of executing the UART_send_data function for one ToF log, you could for-loop a UART_send_data of each ToF_Array element.