CS5460 Arduino library (#2106)

* Add CS5460 submodule
* Add CS5460 component.mk file with default MISO value
* Add CS5460 sample
* Simplified Arduino include change.

.gitmodules

@@ -149,3 +149,8 @@
 	path = Sming/Libraries/modbusino/modbusino
 	url = https://github.com/kmihaylov/modbusino.git
 	ignore = dirty
+[submodule "Libraries.CS5460"]
+	path = Sming/Libraries/CS5460/CS5460
+	url = https://github.com/xxzl0130/CS5460.git
+	ignore = dirty
+

Sming/Libraries/CS5460/CS5460.patch

@@ -0,0 +1,13 @@
+diff --git a/CS5460.h b/CS5460.h
+index 0fbbb5b..fe7ff1d 100644
+--- a/CS5460.h
++++ b/CS5460.h
+@@ -1,7 +1,7 @@
+ #ifndef __CS5460_H__
+ #define __CS5460_H__
+
+-#include <arduino.h>
++#include <Arduino.h>
+ #include <stdint.h>
+ #include <SPI.h>
+

Sming/Libraries/CS5460/component.mk

@@ -0,0 +1,7 @@
+COMPONENT_SUBMODULES := CS5460 
+COMPONENT_SRCDIRS := CS5460 
+COMPONENT_INCDIRS := CS5460 
+
+COMPONENT_VARS += MISO
+MISO ?= 12
+COMPONENT_CXXFLAGS += -DMISO=$(MISO)

Sming/Libraries/CS5460/samples/generic/Makefile

@@ -0,0 +1,9 @@
+#####################################################################
+#### Please don't change this file. Use component.mk instead ####
+#####################################################################
+
+ifndef SMING_HOME
+$(error SMING_HOME is not set: please configure it as an environment variable)
+endif
+
+include $(SMING_HOME)/project.mk

Sming/Libraries/CS5460/samples/generic/README.rst

@@ -0,0 +1,14 @@
+CS5460 generic sample
+=====================
+
+.. highlight:: bash
+
+The sample prints the measured RMS voltage each second (with CS5460 voltage and current filters enabled).
+
+The default MISO pin (12) can be changed through the envvar:`MISO` variable. For example::
+
+   make MISO=13
+
+These variables can be listed with::
+
+   make list-config

Sming/Libraries/CS5460/samples/generic/app/application.cpp

@@ -0,0 +1,29 @@
+#include <SmingCore.h>
+#include <Debug.h>
+#include <CS5460.h>
+
+CS5460 powerMeter(PIN_NDEFINED, PIN_NDEFINED, PIN_NDEFINED, PIN_NDEFINED);
+
+Timer printVoltageTimer;
+
+void printVoltage()
+{
+	debugf("Measured RMS voltage is: %f", powerMeter.getRMSVoltage());
+}
+
+void init()
+{
+	Serial.begin(SERIAL_BAUD_RATE, SERIAL_8N1,
+				 SERIAL_FULL); // 115200 by default, GPIO1,GPIO3, see Serial.swap(), HardwareSerial
+	Serial.systemDebugOutput(true);
+	Debug.setDebug(Serial);
+
+	powerMeter.init();
+	powerMeter.setCurrentGain(190.84); //0.25 / shunt (0.00131)
+	powerMeter.setVoltageGain(500);	//0.25V (Veff max) * dividerGain
+	powerMeter.writeRegister(CONFIG_REGISTER, ENABLE_CURRENT_HPF);
+	powerMeter.writeRegister(CONFIG_REGISTER, ENABLE_VOLTAGE_HPF);
+	powerMeter.startMultiConvert();
+
+	printVoltageTimer.initializeMs(1000, printVoltage).start();
+}

Sming/Libraries/CS5460/samples/generic/component.mk

@@ -0,0 +1,2 @@
+ARDUINO_LIBRARIES := CS5460 
+DISABLE_SPIFFS = 1