Diff: VCNL4020.h

Revision:

0:95952f8fe2b4

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/VCNL4020.h	Wed Mar 29 04:39:07 2017 +0000
@@ -0,0 +1,137 @@
+#ifndef _VCNL4020_H_
+#define _VCNL4020_H_
+/**
+ * VCNL4020
+ * Vishay VCNL4020 Fully Integrated Proximity 
+ * and Ambient Light Sensor with Infrared Emitter,
+ * I2C Interface, and Interrupt Function
+ *
+ * @code
+#include "mbed.h"
+#include "VCNL4020.h"
+#define MSU_VCNL4020_I2C_ADDRESS (0x13)
+
+#if defined (TARGET_KL25Z)
+#define PIN_SCL  PTE1
+#define PIN_SDA  PTE0
+#elif defined (TARGET_KL46Z)
+#define PIN_SCL  PTE1
+#define PIN_SDA  PTE0
+#elif defined (TARGET_K64F)
+#define PIN_SCL  PTE24
+#define PIN_SDA  PTE25
+#elif defined (TARGET_K22F)
+#define PIN_SCL  PTE1
+#define PIN_SDA  PTE0
+#elif defined (TARGET_KL05Z)
+#define PIN_SCL  PTB3
+#define PIN_SDA  PTB4
+#elif defined (TARGET_NUCLEO_F411RE)
+#define PIN_SCL  PB_8
+#define PIN_SDA  PB_9
+#else
+ #error TARGET NOT DEFINED
+#endif
+
+#ifndef MSU_VCNL4020_I2C_ADDRESS
+#define MSU_VCNL4020_I2C_ADDRESS 0x13
+#endif
+
+VCNL4020 *vcnl4020 = 0 ;
+
+int main() {
+    uint16_t als, prox ;
+
+    vcnl4020 = new VCNL4020(PIN_SDA, PIN_SCL, MSU_VCNL4020_I2C_ADDRESS) ; 
+    vcnl4020->setIrLedCurrent(1) ; // 10mA for LED 
+    vcnl4020->disableAlsPeriodic() ;
+    vcnl4020->disableProxPeriodic() ;
+    vcnl4020->disableSelfTimed() ;
+    
+    printf("=== test VCNL4020 %s ===\n",  __DATE__) ;
+    printf("Product ID = %d, Revision = %d\n", 
+        vcnl4020->getProdID(),
+        vcnl4020->getRevID()) ;
+        
+    while(1) {
+        vcnl4020->trigBothOd() ; // trigger both ALS and PROX 
+        while(vcnl4020->alsDataReady() == 0) {
+            // wait for ambient light data ready 
+        }
+        als = vcnl4020->getAls() ;
+        while(vcnl4020->proxDataReady() == 0) {
+            // wait for proximate data ready 
+        }
+        prox = vcnl4020->getProx() ;
+        printf("VCNL4020 Ambient Light: %d  Proximity: %d\n", als, prox) ;
+        
+        wait(1) ;
+    }
+}
+* @endcode
+*/
+class VCNL4020
+{
+public:
+  /**
+  * VCNL4020 constructor
+  *
+  * @param sda SDA pin
+  * @param sdl SCL pin
+  * @param addr addr of the I2C peripheral
+  */
+  VCNL4020(PinName sda, PinName scl, int addr);
+
+  /**
+  * VCNL4020 destructor
+  */
+  ~VCNL4020();
+
+uint8_t getCommandReg(void) ;
+void    setCommandReg(uint8_t cmd) ;
+uint8_t getConfigLock(void) ;
+void    setConfigLock(void) ;
+void    clearConfigLock(void) ;
+uint8_t alsDataReady(void) ;
+uint16_t getAls(void) ;
+uint8_t proxDataReady(void) ;
+uint16_t getProx(void) ;
+void    trigAlsOd(void) ;
+void    trigProxOd(void) ;
+void    trigBothOd(void) ;
+uint8_t getAlsPeriodicEnable(void) ;
+void    enableAlsPeriodic(void) ;
+void    disableAlsPeriodic(void) ;
+uint8_t getProxPeriodicEnable(void) ;
+void    enableProxPeriodic(void) ;
+void    disableProxPeriodic(void) ;
+uint8_t getSelfTimedEnable(void) ;
+void    enableSelfTimed(void) ;
+void    disableSelfTimed(void) ;
+uint8_t getFuseProgID(void) ;
+uint8_t getIrLedCurrent(void) ;
+void    setIrLedCurrent(uint8_t value) ;
+uint8_t getIntControl(void) ;
+void    setIntControl(uint8_t ctrl) ;
+uint16_t getLowThreshold(void) ;
+void     setLowThreshold(uint16_t thr) ;
+uint16_t getHighThreshold(void) ;
+void     setHighThreshold(uint16_t thr) ;
+uint8_t getIntStatus(void) ;
+uint8_t getProxModTiming(void) ;
+void    setProxModTiming(uint8_t pmta) ;
+uint8_t getProxRate(void) ;
+void    setProxRate(uint8_t rate) ;
+uint8_t getProdID(void) ;
+uint8_t getRevID(void) ;
+uint16_t getALS(void) ;
+
+private:
+  I2C m_i2c;
+  int m_addr;
+  void readRegs(int addr, uint8_t * data, int len);
+  void writeRegs(uint8_t * data, int len);
+
+};
+
+#endif /* _VCNL4020_H_ */
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