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