Kevin Jung / MAX5487_Digital_Pot_Potentiometer_Rheostat_Resistor_Wiper

Driver, C++ code, and library for the MAX5487, MAX5488, MAX5489. dual channel, SPI bus, 256-tap digital potentiometer. Non-volatile memory (EEPROM) is available for returning the wipers to their previously stored positions upon power-up.

Dependents:   MAX5487_Digital_Potentiometer_Resistor_MAX32630FTHR_Host

Diff: MAX5487.cpp

Revision:
1:bc368afe2ec8
Parent:
0:3d525ab09933
--- a/MAX5487.cpp	Tue Jul 10 05:28:12 2018 +0000
+++ b/MAX5487.cpp	Sat Jul 14 04:25:25 2018 +0000
@@ -0,0 +1,28 @@
+#include "MAX5487.h"
+
+MAX5487::MAX5487(SPI &spi, DigitalOut &pin) : m_spi(spi), m_pin(pin)
+{
+    m_pin = 1;
+}
+
+
+void MAX5487::writeCommand(MAX5487::setting_t setting, int value)
+{
+    if((value >> 8) > 0) {
+        printf("value in writeCommand > 8 bits!\r\n");
+        return;
+    }
+    m_pin = 0;
+    m_spi.write(setting);
+    m_spi.write(value);
+    m_pin = 1;
+}
+    
+    
+void MAX5487::writeCommand(MAX5487::setting_t setting)
+{
+    m_pin = 0;
+    m_spi.write(setting);
+    m_pin = 1;
+}
+    
\ No newline at end of file