Diff: VCNL4100.cpp

Revision:

1:b9a553e027e5

Parent:

0:fbf1a72181fc

--- a/VCNL4100.cpp	Mon May 08 07:16:46 2017 +0000
+++ b/VCNL4100.cpp	Fri Aug 25 21:29:49 2017 +0000
@@ -29,8 +29,8 @@
 #define REG_ASL_DATA   0x09
 #define REG_INT_FLAG   0x0B
 
-VCNL4100::VCNL4100(PinName sda, PinName scl, int addr) :
-    m_i2c(sda, scl), m_addr(addr<<1) 
+VCNL4100::VCNL4100(PinName sda, PinName scl, int saddr) :
+    s_i2c(sda, scl), s_addr(saddr) 
 {
     // activate the peripheral
 }
@@ -40,14 +40,14 @@
 {
 }
 
-void VCNL4100::readRegs(int addr, uint8_t * data, int len) {
-    char t[1] = {addr};
-    m_i2c.write(m_addr, t, 1, true);
-    m_i2c.read(m_addr, (char *)data, len);
+void VCNL4100::readRegs(int raddr, uint8_t * data, int len) {
+    char r_addr[1] = {raddr};
+    s_i2c.write(s_addr, r_addr, 1, true); //i2c.write(s_addr, r_addr, len = number of chars sent, start bit instead of stop bit = true);
+    s_i2c.read(s_addr, (char *)data, len);
 }
 
 void VCNL4100::writeRegs(uint8_t * data, int len) {
-    m_i2c.write(m_addr, (char *)data, len);
+    s_i2c.write(s_addr, (char *)data, len);
 }
 
 uint8_t  VCNL4100::getAlsConf(void) 
@@ -155,7 +155,7 @@
     uint8_t data[3] ;
     data[0] = REG_PS_CONF1 ;
     tmp = getPsConf12() ;
-    data[1] = tmp & 0xFF ;
+    data[1] = tmp & 0xFF ; //chops off the top byte
     data[2] = conf2 ;
     writeRegs(data, 3) ;
 }