Azoteq / IQS62x

Library to read and write Azoteq IQS6xx device registers via I2C.

Dependents:   IQS620_HelloWorld IQS622_HelloWorld IQS624_HelloWorld IQS621_HelloWorld ... more

Library: IQS62x

Library to read and write Azoteq IQS6xx device registers via I2C.

Supported Devices

Components / IQS620A
Ultra low power sensor for magnetic field, capacitive touch and inductive proximity. Empowers next-generation user interfaces.

Components / IQS621
Azoteq IQS621 ultra low power sensor for ambient light, magnetic field, capacitance and inductive proximity. Empowers next-generation user interfaces.

Components / IQS622
Azoteq IQS622 ultra low power sensor for ambient light, active (reflective) IR, magnetic field, capacitance and inductive proximity. Empowers next-generation user interfaces.

Components / IQS624
Ultra low power sensor for rotating magnetic field, capacitive touch, and inductive proximity. Empowers next-generation user interfaces.

Handy Table of ProxFusion Device Features


ALS = Ambient Light Sensor PIR = Passive Infrared

/media/uploads/AzqDev/mbed-azoteq-proxfusion-handy-table-of-product-features.jpg

Diff: IQS62x.cpp

Revision:
10:8fdac52881aa
Parent:
9:7c2666dfbc9a
Child:
11:4d6d1da5bd31
--- a/IQS62x.cpp	Fri May 12 05:01:18 2017 +0000
+++ b/IQS62x.cpp	Fri May 12 14:44:54 2017 +0000
@@ -38,17 +38,18 @@
 }
 #endif
 
-// read all registers from the IQS62x
-void IQS62xIO::readAll() {
+// read N registers, starting at provided offset
+void IQS62xIO::readIqs(int start, int count){
+    memset(I2CBuffer,0x55,I2CBufferSize); // "clear" i2c receive buffer
     waitForReady();
-    const static char i2c_start_address [] = { 0x0 };
-    int numberOfBytes = sizeof( i2c_start_address );
-    // write 0 to the IQS62x address register
+    char i2c_start_address [1]; 
+    i2c_start_address[0] = start & 0xff;
+    int numberOfBytes = 1;
+    // write start address to the IQS62x address register
     if(0!=i2c.write(I2C_ADR,i2c_start_address,numberOfBytes,false)) 
         I2CErrorCount++;
     waitForReady();
-    memset(I2CBuffer,0x55,I2CBufferSize); // "clear" i2c receive buffer
-    numberOfBytes = NUMBER_OF_REGISTERS;
+    numberOfBytes = count % I2CBufferSize;
     // read register values into a buffer
     if(0!=i2c.read(I2C_ADR,I2CBuffer,numberOfBytes,false))
         I2CErrorCount++;