Hello
i tried to integrate SimpleRangingExamples of X-CUBE-53L1A1 in a multi-thread FreeRTOS environement (4 threads also access the I2C)
The SimpleRangingExamples of X-CUBE-53L1A1 running alone in a thread is OK. I want to add this thread to the 4 other thread accessing the I2C.
I have protected the i2c with semaphore : the 4 threads share well the I2C.
to add the SimpleRangingExamples in a new thread , i have the following definitions :
define VL53L1_GetI2cBus(...) CO_Mutex_get() osMutexWait(i2c_mutex_id, osWaitForever)
define VL53L1_PutI2cBus(...) CO_Mutex_put() //(void)0 //CTT osMutexRelease(i2c_mutex_id)
the thread is the following :
void PY_TASK(void const * argument)
{
int status;
Dev->I2cHandle = &hi2c1;
Dev->I2cDevAddr = 0x52;
//CO_Mutex_get();
status = VL53L1_WaitDeviceBooted(Dev);
status = VL53L1_DataInit(Dev);
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);
if(status){
snprintf(dataOut, DATA_SIZE, "PY =VL53L1_StartMeasurement failed\r\n" );
HAL_UART_Transmit(&huart2, (uint8_t*)dataOut, strlen(dataOut), 0xFFFF);
}
else
{
snprintf(dataOut, DATA_SIZE, "PY =VL53L1_StartMeasurement OK\r\n" );
HAL_UART_Transmit(&huart2, (uint8_t*)dataOut, strlen(dataOut), 0xFFFF);
}
do // interrupt mode
{
//__WFI();
if(MA_IntCount !=0 ){
MA_IntCount=0;
status = VL53L1_GetRangingMeasurementData(Dev, &RangingData);
if(status==0)
{
snprintf(dataOut, DATA_SIZE, "PY =%d\r\n", RangingData.RangeMilliMeter );
//snprintf(dataOut, DATA_SIZE, "PY =\r\n" );
HAL_UART_Transmit(&huart2, (uint8_t*)dataOut, strlen(dataOut), 0xFFFF);
}
status = VL53L1_ClearInterruptAndStartMeasurement(Dev);
}
}
while(1);
;
}
the programm hangs weither in hard failure or in RTOS functions...
Do you know how to integrate this example in a multi thread environement ?
thanks for any help
regards
