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Driver for Proximity / Ambient Light Sensor VCNL40xx from Vishay
Fork of
VCNL40x0
by 
Dirck Sowada
Revision 2:70621b4de13a, committed 2017-03-22
- Comitter:
- franzle
- Date:
- Wed Mar 22 10:14:20 2017 +0000
- Parent:
- 1:cf336a5443e3
- Commit message:
- Cleaned Code
Changed in this revision
| main.cpp | Show diff for this revision Revisions of this file |
| mbed.bld | Show diff for this revision Revisions of this file |
diff -r cf336a5443e3 -r 70621b4de13a main.cpp
--- a/main.cpp Fri Jul 04 21:31:19 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,352 +0,0 @@
-/*
-Copyright (c) 2012 Vishay GmbH, www.vishay.com
-author: DS, version 1.2
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-*/
-
-#define VERSION "\n Version: 1.2 01/2012\n"
-#define MAIN1 // select MAIN1, MAIN2, MAIN3 or MIAN4
-#define BAUD 115200 // increase up to 921600 for high speed communication (depends on terminal programm and USB mode)
-
-#include "mbed.h"
-#include "VCNL40x0.h"
-
-//VCNL40x0 VCNL40x0_Device (p28, p27, VCNL40x0_ADDRESS); // Define SDA, SCL pin and I2C address
-VCNL40x0 VCNL40x0_Device (p9, p10, VCNL40x0_ADDRESS); // Define SDA, SCL pin and I2C address
-DigitalOut mled0(LED1); // LED #1
-DigitalOut mled1(LED2); // LED #2
-DigitalOut mled2(LED3); // LED #3
-Serial pc(USBTX, USBRX); // Tx, Rx USB transmission
-
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// main #1
-// Read Proximity on demand and Ambillight on demand in endless loop
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-# ifdef MAIN1
-
-int main() {
- unsigned char ID=0;
- unsigned char Current=0;
- unsigned int ProxiValue=0;
- unsigned int AmbiValue=0;
-
- pc.baud(BAUD); // set USB speed (virtual COM port)
-
- // print information on screen
- pc.printf("\n\n VCNL4010/4020 Proximity/Ambient Light Sensor");
- pc.printf("\n library tested with mbed LPC1768 (ARM Cortex-M3 core) on www.mbed.org");
- pc.printf(VERSION);
- pc.printf("\n Demonstration #1:");
- pc.printf("\n Read Proximity on demand and Ambillight on demand in endless loop");
-
- VCNL40x0_Device.ReadID (&ID); // Read VCNL40x0 product ID revision register
- pc.printf("\n\n Product ID Revision Register: %d", ID);
-
- VCNL40x0_Device.SetCurrent (20); // Set current to 200mA
- VCNL40x0_Device.ReadCurrent (&Current); // Read back IR LED current
- pc.printf("\n IR LED Current: %d\n\n", Current);
-
- wait_ms(3000); // wait 3s (only for display)
-
-// endless loop /////////////////////////////////////////////////////////////////////////////////////
-
- while (1) {
- mled0 = 1; // LED on
- VCNL40x0_Device.ReadProxiOnDemand (&ProxiValue); // read prox value on demand
- VCNL40x0_Device.ReadAmbiOnDemand (&AmbiValue); // read ambi value on demand
- mled0 = 0; // LED off
-
- // pront values on screen
- pc.printf("\nProxi: %5.0i cts \tAmbi: %5.0i cts \tIlluminance: %7.2f lx", ProxiValue, AmbiValue, AmbiValue/4.0);
- }
-}
-# endif
-
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// main #2
-// Proximity Measurement in selfetimed mode with 4 measurements/s
-// Read prox value if ready with conversion, endless loop
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-# ifdef MAIN2
-
-int main() {
- unsigned char ID=0;
- unsigned char Command=0;
- unsigned char Current=0;
- unsigned int ProxiValue=0;
- unsigned int AmbiValue=0;
-
- pc.baud(BAUD);
-
- // print information on screen
- pc.printf("\n\n VCNL4010/4020 Proximity/Ambient Light Sensor");
- pc.printf("\n library tested with mbed LPC1768 (ARM Cortex-M3 core) on www.mbed.org");
- pc.printf(VERSION);
- pc.printf("\n Demonstration #2:");
- pc.printf("\n Proximity Measurement in selftimed mode with 4 measurements/s");
- pc.printf("\n Read prox value if ready with conversion, endless loop");
-
- VCNL40x0_Device.ReadID (&ID); // Read VCNL40x0 product ID revision register
- pc.printf("\n\n Product ID Revision Register: %d", ID);
-
- VCNL40x0_Device.SetCurrent (20); // Set current to 200mA
- VCNL40x0_Device.ReadCurrent (&Current); // Read back IR LED current
- pc.printf("\n IR LED Current: %d\n\n", Current);
-
- VCNL40x0_Device.SetProximityRate (PROX_MEASUREMENT_RATE_4); // set proximity rate to 4/s
-
- // enable prox in selftimed mode
- VCNL40x0_Device.SetCommandRegister (COMMAND_PROX_ENABLE | COMMAND_SELFTIMED_MODE_ENABLE);
-
- wait_ms(3000); // wait 3s (only for display)
-
-// endless loop /////////////////////////////////////////////////////////////////////////////////////
-
- while (1) {
-
- // wait on prox data ready bit
- do {
- VCNL40x0_Device.ReadCommandRegister (&Command); // read command register
- } while (!(Command & COMMAND_MASK_PROX_DATA_READY));// prox data ready ?
-
- mled0 = 1; // LED on
- VCNL40x0_Device.ReadProxiValue (&ProxiValue); // read prox value
- mled0 = 0; // LED off
-
- // print values on screen
- pc.printf("\nProxi: %5.0i cts", ProxiValue);
- }
-}
-# endif
-
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// main #3
-// Proximity Measurement in selfetimed mode with 31 measurements/s
-// Interrupt waiting on proximity value > upper threshold limit
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-# ifdef MAIN3
-
-int main() {
- unsigned char ID=0;
- unsigned char Command=0;
- unsigned char Current=0;
- unsigned int ProxiValue=0;
- unsigned int AmbiValue=0;
- unsigned char InterruptStatus=0;
- unsigned char InterruptControl=0;
-
- pc.baud(BAUD);
-
- // print information on screen
- pc.printf("\n\n VCNL4010/4020 Proximity/Ambient Light Sensor");
- pc.printf("\n library tested with mbed LPC1768 (ARM Cortex-M3 core) on www.mbed.org");
- pc.printf(VERSION);
- pc.printf("\n Demonstration #3:");
- pc.printf("\n Proximity Measurement in selfetimed mode with 31 measurements/s");
- pc.printf("\n Interrupt waiting on proximity value > upper threshold limit");
-
- VCNL40x0_Device.ReadID (&ID); // Read VCNL40x0 product ID revision register
- pc.printf("\n\n Product ID Revision Register: %d", ID);
-
- VCNL40x0_Device.SetCurrent (20); // Set current to 200mA
- VCNL40x0_Device.ReadCurrent (&Current); // Read back IR LED current
- pc.printf("\n IR LED Current: %d\n\n", Current);
-
- // stop all activities (necessary for changing proximity rate, see datasheet)
- VCNL40x0_Device.SetCommandRegister (COMMAND_ALL_DISABLE);
-
- // set proximity rate to 31/s
- VCNL40x0_Device.SetProximityRate (PROX_MEASUREMENT_RATE_31);
-
- // enable prox in selftimed mode
- VCNL40x0_Device.SetCommandRegister (COMMAND_PROX_ENABLE |
- COMMAND_SELFTIMED_MODE_ENABLE);
-
- // set interrupt control register
- VCNL40x0_Device.SetInterruptControl (INTERRUPT_THRES_SEL_PROX |
- INTERRUPT_THRES_ENABLE |
- INTERRUPT_COUNT_EXCEED_1);
-
- VCNL40x0_Device.ReadInterruptControl (&InterruptControl); // Read back Interrupt Control register
- pc.printf("\n Interrupt Control Register: %i\n\n", InterruptControl);
-
-
- // wait on prox data ready bit
- do {
- VCNL40x0_Device.ReadCommandRegister (&Command); // read command register
- } while (!(Command & COMMAND_MASK_PROX_DATA_READY)); // prox data ready ?
-
- VCNL40x0_Device.ReadProxiValue (&ProxiValue); // read prox value
- VCNL40x0_Device.SetHighThreshold (ProxiValue+100); // set high threshold for interrupt
-
- wait_ms(3000); // wait 3s (only for display)
-
-// endless loop /////////////////////////////////////////////////////////////////////////////////////
-
- while (1) {
-
- // wait on prox data ready bit
- do {
- VCNL40x0_Device.ReadCommandRegister (&Command); // read command register
- } while (!(Command & COMMAND_MASK_PROX_DATA_READY));// prox data ready ?
-
- mled0 = 1; // LED on
- VCNL40x0_Device.ReadProxiValue (&ProxiValue); // read prox value
- mled0 = 0; // LED off
-
- // read interrupt status register
- VCNL40x0_Device.ReadInterruptStatus (&InterruptStatus);
-
- // print prox value and interrupt status on screen
- pc.printf("\nProxi: %5.0i cts \tInterruptStatus: %i", ProxiValue, InterruptStatus);
-
- // check interrupt status for High Threshold
- if (InterruptStatus & INTERRUPT_MASK_STATUS_THRES_HI) {
- mled1 = 1; // LED on
- VCNL40x0_Device.SetInterruptStatus (InterruptStatus); // clear Interrupt Status
- mled1 = 0; // LED on
- }
- }
-}
-# endif
-
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// main #4
-// Proximity Measurement and Ambientlight Measurement in selftimed mode
-// Proximity with 31 measurements/s, Ambientlight with 2 measurement/s
-// Interrupt waiting on proximity value > upper threshold limit
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-# ifdef MAIN4
-
-int main() {
- unsigned int i=0;
- unsigned char ID=0;
- unsigned char Command=0;
- unsigned char Current=0;
- unsigned int ProxiValue=0;
- unsigned int SummeProxiValue=0;
- unsigned int AverageProxiValue=0;
- unsigned int AmbiValue=0;
- unsigned char InterruptStatus=0;
- unsigned char InterruptControl=0;
-
- pc.baud(BAUD);
-
- // print information on screen
- pc.printf("\n\n VCNL4010/4020 Proximity/Ambient Light Sensor");
- pc.printf("\n library tested with mbed LPC1768 (ARM Cortex-M3 core) on www.mbed.org");
- pc.printf(VERSION);
- pc.printf("\n Demonstration #4:");
- pc.printf("\n Proximity Measurement and Ambient light Measurement in selftimed mode");
- pc.printf("\n Proximity with 31 measurements/s, Ambient light with 2 measurement/s");
- pc.printf("\n Interrupt waiting on proximity value > upper threshold limit");
-
- VCNL40x0_Device.ReadID (&ID); // Read VCNL40x0 product ID revision register
- pc.printf("\n\n Product ID Revision Register: %d", ID);
-
- VCNL40x0_Device.SetCurrent (20); // Set current to 200mA
- VCNL40x0_Device.ReadCurrent (&Current); // Read back IR LED current
- pc.printf("\n IR LED Current: %d", Current);
-
- // stop all activities (necessary for changing proximity rate, see datasheet)
- VCNL40x0_Device.SetCommandRegister (COMMAND_ALL_DISABLE);
-
- // set proximity rate to 31/s
- VCNL40x0_Device.SetProximityRate (PROX_MEASUREMENT_RATE_31);
-
- // enable prox and ambi in selftimed mode
- VCNL40x0_Device.SetCommandRegister (COMMAND_PROX_ENABLE |
- COMMAND_AMBI_ENABLE |
- COMMAND_SELFTIMED_MODE_ENABLE);
-
- // set interrupt control for threshold
- VCNL40x0_Device.SetInterruptControl (INTERRUPT_THRES_SEL_PROX |
- INTERRUPT_THRES_ENABLE |
- INTERRUPT_COUNT_EXCEED_1);
-
- // set ambient light measurement parameter
- VCNL40x0_Device.SetAmbiConfiguration (AMBI_PARA_AVERAGE_32 |
- AMBI_PARA_AUTO_OFFSET_ENABLE |
- AMBI_PARA_MEAS_RATE_2);
-
- // measure average of prox value
- SummeProxiValue = 0;
-
- for (i=0; i<30; i++) {
- do { // wait on prox data ready bit
- VCNL40x0_Device.ReadCommandRegister (&Command); // read command register
- } while (!(Command & COMMAND_MASK_PROX_DATA_READY)); // prox data ready ?
-
- VCNL40x0_Device.ReadProxiValue (&ProxiValue); // read prox value
-
- SummeProxiValue += ProxiValue; // Summary of all measured prox values
- }
-
- AverageProxiValue = SummeProxiValue/30; // calculate average
-
- VCNL40x0_Device.SetHighThreshold (AverageProxiValue+100); // set upper threshold for interrupt
- pc.printf("\n Upper Threshold Value: %i cts\n\n", AverageProxiValue+100);
-
- wait_ms(2000); // wait 2s (only for display)
-
-// endless loop /////////////////////////////////////////////////////////////////////////////////////
-
- while (1) {
-
- // wait on data ready bit
- do {
- VCNL40x0_Device.ReadCommandRegister (&Command); // read command register
- } while (!(Command & (COMMAND_MASK_PROX_DATA_READY | COMMAND_MASK_AMBI_DATA_READY))); // data ready ?
-
- // read interrupt status register
- VCNL40x0_Device.ReadInterruptStatus (&InterruptStatus);
-
- // check interrupt status for High Threshold
- if (InterruptStatus & INTERRUPT_MASK_STATUS_THRES_HI) {
- mled2 = 1; // LED on, Interrupt
- VCNL40x0_Device.SetInterruptStatus (InterruptStatus); // clear Interrupt Status
- mled2 = 0; // LED off, Interrupt
- }
-
- // prox value ready for using
- if (Command & COMMAND_MASK_PROX_DATA_READY) {
- mled0 = 1; // LED on, Prox Data Ready
- VCNL40x0_Device.ReadProxiValue (&ProxiValue); // read prox value
-
- // print prox value and interrupt status on screen
- pc.printf("\nProxi: %5.0i cts \tInterruptStatus: %i", ProxiValue, InterruptStatus);
-
- mled0 = 0; // LED off, Prox data Ready
- }
-
- // ambi value ready for using
- if (Command & COMMAND_MASK_AMBI_DATA_READY) {
- mled1 = 1; // LED on, Ambi Data Ready
- VCNL40x0_Device.ReadAmbiValue (&AmbiValue); // read ambi value
-
- // print ambi value and interrupt status on screen
- pc.printf("\n Ambi: %i", AmbiValue);
-
- mled1 = 0; // LED off, Ambi Data Ready
- }
- }
-}
-# endif
-
diff -r cf336a5443e3 -r 70621b4de13a mbed.bld --- a/mbed.bld Fri Jul 04 21:31:19 2014 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +0,0 @@ -http://mbed.org/users/mbed_official/code/mbed/builds/3d0ef94e36ec \ No newline at end of file