Posted on March 26, 2018 at 06:07Description:
We currently implement 3 multi-ranging sensors on x-NUCLEO-53L1A1 by polling mode,
implementing in AutonomousLowPowerRangingTest(),
There are some problems found that when I try to change sensor I2C device address to
left = 0x54, center = 0x56, right = 0x58. SW will get error return code as -15 (VL53L1_ERROR_DIVISION_BY_ZERO).
but if I try to enable ONLY ONE sensor by addr = 0x52 (default), it can be working without problem.
So my question is, do 3 sensors share same I2C as 0x52 and if so, how to get each sensor values?
I attach my code for reference
== start
void AutonomousLowPowerRangingTest(void)
{
static VL53L1_RangingMeasurementData_t RangingData;
uint8_t byteData;
printf('Autonomous Ranging Test\n');
status = XNUCLEO53L1A1_ResetId(1, 0); // Reset ToF sensor
HAL_Delay(2);
status = XNUCLEO53L1A1_ResetId(1, 1); // Reset ToF sensor
HAL_Delay(2);
//status = VL53L1_SetDeviceAddress(Dev, 0x56);
//HAL_Delay(2);
status = VL53L1_WaitDeviceBooted(Dev);
HAL_Delay(2);
Dev->I2cDevAddr = 0x56;
status = VL53L1_DataInit(Dev); -> IT FAILS here by -15
status = VL53L1_StaticInit(Dev);
status = VL53L1_SetDistanceMode(Dev, VL53L1_DISTANCEMODE_LONG);
status = VL53L1_SetMeasurementTimingBudgetMicroSeconds(Dev, 50000);
status = VL53L1_SetInterMeasurementPeriodMilliSeconds(Dev, 500);
status = VL53L1_StartMeasurement(Dev);
status = XNUCLEO53L1A1_ResetId(0, 1); // Reset ToF sensor
HAL_Delay(2);
status = VL53L1_WaitDeviceBooted(DevL);
status = VL53L1_SetDeviceAddress(DevL, 0x54);
HAL_Delay(2);
Dev->I2cDevAddr = 0x54;
status = VL53L1_DataInit(DevL);
-> IT FAILS here by -15
status = VL53L1_StaticInit(DevL);
status = VL53L1_SetDistanceMode(DevL, VL53L1_DISTANCEMODE_LONG);
status = VL53L1_SetMeasurementTimingBudgetMicroSeconds(DevL, 50000);
status = VL53L1_SetInterMeasurementPeriodMilliSeconds(DevL, 500);
status = VL53L1_StartMeasurement(DevL);
status = XNUCLEO53L1A1_ResetId(2, 1); // Reset ToF sensor
HAL_Delay(2);
status = VL53L1_WaitDeviceBooted(DevR);
status = VL53L1_SetDeviceAddress(DevR, 0x58);
HAL_Delay(2);
Dev->I2cDevAddr = 0x58;
status = VL53L1_DataInit(DevR);
-> IT FAILS here by -15
status = VL53L1_StaticInit(DevR);
status = VL53L1_SetDistanceMode(DevR, VL53L1_DISTANCEMODE_LONG);
status = VL53L1_SetMeasurementTimingBudgetMicroSeconds(DevR, 50000);
status = VL53L1_SetInterMeasurementPeriodMilliSeconds(DevR, 500);
status = VL53L1_StartMeasurement(DevR);
== end
