as per name
Dependencies: VL53L1CB
main.cpp
- Committer:
- johnAlexander
- Date:
- 2021-06-24
- Revision:
- 5:c59b6c183c8c
- Parent:
- 4:64f1d9db74fa
File content as of revision 5:c59b6c183c8c:
/*
* This VL53L1CB test application performs range measurements, using a satellite
* board plugged directly in to the motherboard.
* Measured ranges are ouput on the Serial Port, running at 115200 baud.
*
* This is designed to work with MBed v2.x, & MBedOS v5.x / v6.x.
*
* The satellite board is expected to be connected as follows :
*
* I2C_SDA D14 / Arduino Connector CN5, pin 9
* I2C_SCL D15 / Arduino Connector CN5, pin 10
* Sensor xShutdown D07 / Arduino Connector CN9, pin 8
* Sensor Interrupt A02 / Arduino Connector CN8, pin 3
*
* The Reset button can be used to restart the program.
*
* *** NOTE :
* Default Mbed build system settings disable printf() floating-point support.
* Offline builds can enable this, again.
* https://github.com/ARMmbed/mbed-os/blob/master/platform/source/minimal-printf/README.md
* .\mbed-os\platform\mbed_lib.json
*
* *** NOTE : By default hardlinks U10, U11, U15 & U18, on the underside of
* the X-NUCELO-53L1A1 expansion board are not made/OFF.
* These links must be made to allow interrupts from the Satellite boards
* to be received.
* U11 and U18 must be made/ON to allow interrupts to be received from the
* INT_L & INT_R positions; or
* U10 and U15 must be made/ON to allow interrupts to be received from the
* Alternate INT_L & INT_R positions.
* The X_NUCLEO_53L1A2 library defaults to use the INT_L/INT_R positions.
* INT_L is available on expansion board Arduino Connector CN5, pin 1 as D8.
* Alternate INT_L is on CN5 Connector pin 2 as D9.
* INT_R is available on expansion board Arduino Connector CN9, pin 3 as D2.
* Alternate INT_R is on CN9 Connector pin 5 as D4.
* The pinouts are shown here : https://developer.mbed.org/components/X-NUCLEO-53L1A2/
*
*/
#include <stdio.h>
#include <time.h>
#include "mbed.h"
#include "VL53L1CB.h"
#include "ToF_I2C.h"
// i2c comms port pins
#define I2C_SDA D14
#define I2C_SCL D15
#define NEW_SENSOR_CENTRE_ADDRESS 0x52
// define interrupt pins
PinName CentreIntPin = A2;
// the satellite pins depend on solder blobs on the back of the shield.
// they may not exist or may be one of two sets.
// the centre pin always exists
//PinName LeftIntPin = D8;
PinName RightIntPin = D2;
// alternate set
PinName LeftIntPin = D9;
//PinName RightIntPin = D4;
#if (MBED_VERSION > 60300)
UnbufferedSerial pc(USBTX, USBRX);
extern "C" void wait_ms(int ms);
#else
Serial pc(SERIAL_TX, SERIAL_RX);
#endif
void print_results(int devNumber, VL53L1_MultiRangingData_t *pMultiRangingData );
VL53L1CB *Sensor;
/* Start the sensor ranging */
int init_sensor()
{
int status = 0;
printf("configuring sensor\n");
/* Device Initialization and setting */
status = Sensor->VL53L1CB_DataInit();
status = Sensor->VL53L1CB_StaticInit();
status = Sensor->VL53L1CB_SetPresetMode(VL53L1_PRESETMODE_AUTONOMOUS);
status = Sensor->VL53L1CB_SetDistanceMode(VL53L1_DISTANCEMODE_LONG);
status = Sensor->VL53L1CB_SetInterMeasurementPeriodMilliSeconds(500);
status = Sensor->VL53L1CB_SetMeasurementTimingBudgetMicroSeconds(45000);
status = Sensor->VL53L1CB_SetSequenceStepEnable(VL53L1_SEQUENCESTEP_MM1, 0);
status = Sensor->VL53L1CB_SetSequenceStepEnable(VL53L1_SEQUENCESTEP_MM2, 0);
// create interrupt handler and start measurements
if (Sensor != NULL) {
status = Sensor->stop_measurement();
if (status != 0) {
return status;
}
status = Sensor->VL53L1CB_StartMeasurement();
if (status != 0) {
return status;
}
}
return status;
}
/*=================================== Main ==================================
=============================================================================*/
int main()
{
int status;
DigitalOut xshutdown(D7);
pc.baud(115200); // baud rate is important as printf statements take a lot of time
printf("mbed version : %d \r\n",MBED_VERSION);
// create i2c interface
ToF_DevI2C *dev_I2C = new ToF_DevI2C(I2C_SDA, I2C_SCL);
Sensor = new VL53L1CB(dev_I2C, &xshutdown, A2);
printf("sensor created!\r\n");
/* init the 53L1A1 expansion board with default values */
Sensor->VL53L1CB_Off();
Sensor->VL53L1CB_On();
status = Sensor->InitSensor(NEW_SENSOR_CENTRE_ADDRESS);
if (status) {
delete Sensor;
Sensor = NULL;
printf("Sensor not present\n\r");
} else {
printf("Sensor present\n\r");
}
#if (MBED_VERSION > 60300)
thread_sleep_for(100);
#else
wait_ms(100); // NEEDS A DELAY BETWEEN SENSORS
#endif
printf("board initialised! - %d\r\n", status);
/* init an array with chars to id the sensors */
status = init_sensor();
if (status != 0) {
printf("Failed to init sensors!\r\n");
return status;
}
printf("loop forever\n");
VL53L1_MultiRangingData_t MultiRangingData;
VL53L1_MultiRangingData_t *pMultiRangingData = NULL;
while (true) {
pMultiRangingData = &MultiRangingData;
status = Sensor->VL53L1CB_WaitMeasurementDataReady();
status = Sensor->VL53L1CB_GetMultiRangingData( pMultiRangingData);
print_results(NEW_SENSOR_CENTRE_ADDRESS, pMultiRangingData );
status = Sensor->VL53L1CB_ClearInterrupt();
}
printf("Terminating.\n");
}
// print what ever results are required
void print_results( int devNumber, VL53L1_MultiRangingData_t *pMultiRangingData )
{
int no_of_object_found = pMultiRangingData->NumberOfObjectsFound;
int signal_rate = 0;
int ambient_rate = 0;
int RoiNumber = pMultiRangingData->RoiNumber;
if (( no_of_object_found < 10 ) && ( no_of_object_found != 0)) {
for(int j=0; j<no_of_object_found; j++) {
if ((pMultiRangingData->RangeData[j].RangeStatus == VL53L1_RANGESTATUS_RANGE_VALID) ||
(pMultiRangingData->RangeData[j].RangeStatus == VL53L1_RANGESTATUS_RANGE_VALID_NO_WRAP_CHECK_FAIL)) {
signal_rate = pMultiRangingData->RangeData[j].SignalRateRtnMegaCps / 65535;
ambient_rate = pMultiRangingData->RangeData[j].AmbientRateRtnMegaCps / 65535;
printf("\t i2cAddr=%d \t RoiNumber=%d \t status=%d, \t D=%5dmm, \t Signal=%d Mcps, \t Ambient=%d Mcps \n",
devNumber, RoiNumber,
pMultiRangingData->RangeData[j].RangeStatus,
pMultiRangingData->RangeData[j].RangeMilliMeter,
signal_rate,
ambient_rate);
/*
// online compiler disables printf() / floating-point support, for code-size reasons.
// offline compiler can switch it on.
printf("\t i2cAddr=%d \t RoiNumber=%d \t status=%d, \t D=%5dmm, \t Signal=%2.2f Mcps, \t Ambient=%2.2f Mcps \n",
devNumber, RoiNumber,
pMultiRangingData->RangeData[j].RangeStatus,
pMultiRangingData->RangeData[j].RangeMilliMeter,
pMultiRangingData->RangeData[j].SignalRateRtnMegaCps / 65535.0,
pMultiRangingData->RangeData[j].AmbientRateRtnMegaCps / 65535.0);
*/
}
}
} // if (( no_of_object_found < 10 ) && ( no_of_object_found != 0))
}
#if (MBED_VERSION > 60300)
extern "C" void wait_ms(int ms)
{
thread_sleep_for(ms);
}
#endif