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Dependencies: X_NUCLEO_53L0A1 mbed
Fork of HelloWorld_VL53L0X_LPC1768 by
main.cpp@1:3483e701ec59, 2016-11-28 (annotated)
- Committer:
- johnAlexander
- Date:
- Mon Nov 28 14:55:05 2016 +0000
- Revision:
- 1:3483e701ec59
- Parent:
- 0:ce8359133ae6
- Child:
- 3:b3f70617a6b3
First release. Ready to go to st.com and mbed.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
johnAlexander | 0:ce8359133ae6 | 1 | #include "mbed.h" |
johnAlexander | 0:ce8359133ae6 | 2 | #include "x_nucleo_53l0a1.h" |
johnAlexander | 0:ce8359133ae6 | 3 | #include <string.h> |
johnAlexander | 0:ce8359133ae6 | 4 | #include <stdlib.h> |
johnAlexander | 0:ce8359133ae6 | 5 | #include <stdio.h> |
johnAlexander | 0:ce8359133ae6 | 6 | #include <assert.h> |
johnAlexander | 0:ce8359133ae6 | 7 | |
johnAlexander | 1:3483e701ec59 | 8 | /* This VL53L0X Expansion board test application performs a range measurement in polling mode |
johnAlexander | 0:ce8359133ae6 | 9 | on the onboard embedded top sensor. |
johnAlexander | 1:3483e701ec59 | 10 | The measured data is displayed on the on-board 4-digit display. |
johnAlexander | 0:ce8359133ae6 | 11 | |
johnAlexander | 1:3483e701ec59 | 12 | User Blue button stops the current measurement and the entire program, releasing all resources. |
johnAlexander | 0:ce8359133ae6 | 13 | Reset button is used to restart the program. */ |
johnAlexander | 0:ce8359133ae6 | 14 | |
johnAlexander | 0:ce8359133ae6 | 15 | /* Polling operating modes don`t require callback function that handles IRQ |
johnAlexander | 0:ce8359133ae6 | 16 | Callback IRQ functions are used only for measure that require interrupt */ |
johnAlexander | 0:ce8359133ae6 | 17 | |
johnAlexander | 0:ce8359133ae6 | 18 | /* GetMeasurement is asynchronous! It returns NOT_READY if the measurement value |
johnAlexander | 0:ce8359133ae6 | 19 | is not ready to be read from the corresponding register. So you need to wait |
johnAlexander | 0:ce8359133ae6 | 20 | for the result to be ready */ |
johnAlexander | 0:ce8359133ae6 | 21 | |
johnAlexander | 0:ce8359133ae6 | 22 | #define VL53L0_I2C_SDA D14 |
johnAlexander | 0:ce8359133ae6 | 23 | #define VL53L0_I2C_SCL D15 |
johnAlexander | 0:ce8359133ae6 | 24 | |
johnAlexander | 0:ce8359133ae6 | 25 | #define RANGE 0 |
johnAlexander | 0:ce8359133ae6 | 26 | |
johnAlexander | 0:ce8359133ae6 | 27 | static X_NUCLEO_53L0A1 *board=NULL; |
johnAlexander | 0:ce8359133ae6 | 28 | VL53L0X_RangingMeasurementData_t data_sensor_centre; |
johnAlexander | 1:3483e701ec59 | 29 | OperatingMode operating_mode; |
johnAlexander | 0:ce8359133ae6 | 30 | |
johnAlexander | 0:ce8359133ae6 | 31 | /* flags that handle interrupt request */ |
johnAlexander | 0:ce8359133ae6 | 32 | bool int_sensor_centre=false, int_stop_measure=false; |
johnAlexander | 0:ce8359133ae6 | 33 | |
johnAlexander | 0:ce8359133ae6 | 34 | /* ISR callback function of the sensor_centre */ |
johnAlexander | 0:ce8359133ae6 | 35 | void SensorTopIRQ(void) |
johnAlexander | 0:ce8359133ae6 | 36 | { |
johnAlexander | 0:ce8359133ae6 | 37 | int_sensor_centre=true; |
johnAlexander | 0:ce8359133ae6 | 38 | board->sensor_centre->DisableInterruptMeasureDetectionIRQ(); |
johnAlexander | 0:ce8359133ae6 | 39 | } |
johnAlexander | 0:ce8359133ae6 | 40 | |
johnAlexander | 0:ce8359133ae6 | 41 | /* ISR callback function of the user blue button to stop program */ |
johnAlexander | 0:ce8359133ae6 | 42 | void StopMeasureIRQ(void) |
johnAlexander | 0:ce8359133ae6 | 43 | { |
johnAlexander | 0:ce8359133ae6 | 44 | int_stop_measure=true; |
johnAlexander | 0:ce8359133ae6 | 45 | } |
johnAlexander | 1:3483e701ec59 | 46 | |
johnAlexander | 0:ce8359133ae6 | 47 | /* On board 4 digit local display refresh */ |
johnAlexander | 0:ce8359133ae6 | 48 | void DisplayRefresh(OperatingMode op_mode) |
johnAlexander | 0:ce8359133ae6 | 49 | { |
johnAlexander | 0:ce8359133ae6 | 50 | char str[5]; |
johnAlexander | 0:ce8359133ae6 | 51 | |
johnAlexander | 0:ce8359133ae6 | 52 | if (op_mode==range_single_shot_polling || op_mode==range_continuous_interrupt || op_mode==range_continuous_polling) |
johnAlexander | 0:ce8359133ae6 | 53 | { |
johnAlexander | 0:ce8359133ae6 | 54 | if (data_sensor_centre.RangeStatus == 0) // we have a valid range. |
johnAlexander | 0:ce8359133ae6 | 55 | { |
johnAlexander | 0:ce8359133ae6 | 56 | sprintf(str,"%d",data_sensor_centre.RangeMilliMeter); |
johnAlexander | 0:ce8359133ae6 | 57 | } |
johnAlexander | 0:ce8359133ae6 | 58 | else |
johnAlexander | 0:ce8359133ae6 | 59 | { |
johnAlexander | 0:ce8359133ae6 | 60 | sprintf(str,"%s","----"); |
johnAlexander | 0:ce8359133ae6 | 61 | } |
johnAlexander | 0:ce8359133ae6 | 62 | } |
johnAlexander | 0:ce8359133ae6 | 63 | |
johnAlexander | 0:ce8359133ae6 | 64 | board->display->DisplayString(str); |
johnAlexander | 0:ce8359133ae6 | 65 | } |
johnAlexander | 0:ce8359133ae6 | 66 | |
johnAlexander | 1:3483e701ec59 | 67 | void RangeMeasure(DevI2C *device_i2c) { |
johnAlexander | 0:ce8359133ae6 | 68 | int status; |
johnAlexander | 0:ce8359133ae6 | 69 | |
johnAlexander | 0:ce8359133ae6 | 70 | /* creates the 53L0A1 expansion board singleton obj */ |
johnAlexander | 0:ce8359133ae6 | 71 | board=X_NUCLEO_53L0A1::Instance(device_i2c, A2, D8, D2); |
johnAlexander | 0:ce8359133ae6 | 72 | |
johnAlexander | 0:ce8359133ae6 | 73 | board->display->DisplayString("53L0"); |
johnAlexander | 0:ce8359133ae6 | 74 | /* init the 53L0A1 expansion board with default values */ |
johnAlexander | 0:ce8359133ae6 | 75 | status=board->InitBoard(); |
johnAlexander | 0:ce8359133ae6 | 76 | if(status) |
johnAlexander | 0:ce8359133ae6 | 77 | printf("Failed to init board!\n\r"); |
johnAlexander | 0:ce8359133ae6 | 78 | // operating_mode=range_continuous_polling; |
johnAlexander | 0:ce8359133ae6 | 79 | operating_mode=range_single_shot_polling; |
johnAlexander | 0:ce8359133ae6 | 80 | /* start the measure on sensor top */ |
johnAlexander | 0:ce8359133ae6 | 81 | status=board->sensor_centre->StartMeasurement(operating_mode, SensorTopIRQ); |
johnAlexander | 0:ce8359133ae6 | 82 | if(!status) |
johnAlexander | 0:ce8359133ae6 | 83 | { |
johnAlexander | 0:ce8359133ae6 | 84 | while(1) |
johnAlexander | 0:ce8359133ae6 | 85 | { |
johnAlexander | 0:ce8359133ae6 | 86 | status=board->sensor_centre->GetMeasurement(operating_mode, &data_sensor_centre); |
johnAlexander | 0:ce8359133ae6 | 87 | DisplayRefresh(operating_mode); |
johnAlexander | 0:ce8359133ae6 | 88 | if(int_stop_measure) // Blue Button isr was triggered |
johnAlexander | 0:ce8359133ae6 | 89 | { |
johnAlexander | 0:ce8359133ae6 | 90 | status=board->sensor_centre->StopMeasurement(operating_mode); // stop the measure and exit |
johnAlexander | 0:ce8359133ae6 | 91 | int_stop_measure = false; |
johnAlexander | 0:ce8359133ae6 | 92 | printf("\nProgram stopped!\n\n\r"); |
johnAlexander | 0:ce8359133ae6 | 93 | break; |
johnAlexander | 0:ce8359133ae6 | 94 | } |
johnAlexander | 0:ce8359133ae6 | 95 | } |
johnAlexander | 0:ce8359133ae6 | 96 | } |
johnAlexander | 0:ce8359133ae6 | 97 | board->display->DisplayString("BYE"); |
johnAlexander | 0:ce8359133ae6 | 98 | delete board; |
johnAlexander | 0:ce8359133ae6 | 99 | } |
johnAlexander | 0:ce8359133ae6 | 100 | |
johnAlexander | 0:ce8359133ae6 | 101 | /*=================================== Main ================================== |
johnAlexander | 0:ce8359133ae6 | 102 | Press the blue user button to stop the measurements in progress |
johnAlexander | 0:ce8359133ae6 | 103 | =============================================================================*/ |
johnAlexander | 0:ce8359133ae6 | 104 | int main() |
johnAlexander | 0:ce8359133ae6 | 105 | { |
johnAlexander | 0:ce8359133ae6 | 106 | #if USER_BUTTON==PC_13 // we are cross compiling for Nucleo-f401 |
johnAlexander | 0:ce8359133ae6 | 107 | InterruptIn stop_button (USER_BUTTON); |
johnAlexander | 0:ce8359133ae6 | 108 | stop_button.rise (&StopMeasureIRQ); |
johnAlexander | 0:ce8359133ae6 | 109 | #endif |
johnAlexander | 0:ce8359133ae6 | 110 | DevI2C *device_i2c =new DevI2C(VL53L0_I2C_SDA, VL53L0_I2C_SCL); |
johnAlexander | 0:ce8359133ae6 | 111 | |
johnAlexander | 1:3483e701ec59 | 112 | RangeMeasure(device_i2c); // start continuous measures |
johnAlexander | 0:ce8359133ae6 | 113 | } |
johnAlexander | 0:ce8359133ae6 | 114 | |
johnAlexander | 0:ce8359133ae6 | 115 | |
johnAlexander | 0:ce8359133ae6 | 116 |