Revision 0:54d71ce98029, committed 2019-01-23

Comitter:

JeongHoLee

Date:

Wed Jan 23 06:56:03 2019 +0000

Commit message:

TPL0102_Potentiometer 19.01.23

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TPL0102.cpp	Wed Jan 23 06:56:03 2019 +0000
@@ -0,0 +1,29 @@
+#include "TPL0102.h"
+
+TPL0102::TPL0102(PinName SDA, 
+                 PinName SCL) : i2c_(SDA, SCL)
+{
+    i2c_.frequency(100000);
+//    i2c_.start();
+    wait_us(500);
+}
+
+int TPL0102::SlaveSelect(char address, char settings)
+{
+    return oneByteWrite(address, settings);
+}
+
+int TPL0102::AccessControlRegister(char settings)
+{
+    int tx=TPL0102_ACR;
+    return oneByteWrite(tx, settings);
+}
+
+int TPL0102::oneByteWrite(char address, char data)
+{
+   int ack = 0;
+   char tx[2];
+   tx[0] = address;
+   tx[1] = data;
+   return   ack | i2c_.write( TPL0102_Potentiometer_Address << 1 & 0xFE , tx, 2);  
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TPL0102.h	Wed Jan 23 06:56:03 2019 +0000
@@ -0,0 +1,27 @@
+#ifndef TPL0102_H
+#define TPL0102_H
+
+#include "mbed.h"
+
+#define TPL0102_Potentiometer_Address 0x50
+#define TPL0102_ACR 0x10 // 0x40 reset
+
+class TPL0102 {
+
+public:
+
+    TPL0102(PinName SDA, PinName SCL);
+
+    int SlaveSelect(char address, char settings);
+    int AccessControlRegister(char settings);
+//    void DeviceFunctionalMode(char settings);
+
+private:
+
+    I2C i2c_;
+
+    int oneByteWrite(char address, char data);
+
+};
+
+#endif
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Jan 23 06:56:03 2019 +0000
@@ -0,0 +1,26 @@
+#include "TPL0102.h"
+
+TPL0102 potentiometer(PB_9, PB_8);  // PB_9 SDA, PB_8 SCL
+//AnalogIn analog_value(PA_0);
+Serial pc(USBTX, USBRX);
+
+int main()
+{
+    pc.printf("Start\r\n");
+    if(potentiometer.SlaveSelect(0x00, 0xC0)) { pc.printf("Not written\r\n"); }
+    else { pc.printf("written\r\n"); }
+
+    if(potentiometer.AccessControlRegister(0x40)) { pc.printf("ACR Not written\r\n"); }  // Non-volatile register, x:shutdown, read non-volatile write op.
+    else { pc.printf("ACR written\r\n"); }
+
+    int i=0xC0;
+    while(1)
+    {
+        i++;
+        potentiometer.SlaveSelect(0x00, i);
+        if(i==0xff) i=0x00;
+        wait(1);        
+    }
+    return 0;
+//    pc.printf("%d\r\n", analog_value);
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Jan 23 06:56:03 2019 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/mbed/builds/e95d10626187
\ No newline at end of file