Add ADC peripheral.

right/src/peripherals/adc.c

@@ -0,0 +1,49 @@
+#include "fsl_adc16.h"
+#include "fsl_port.h"
+#include "peripherals/adc.h"
+
+adc16_channel_config_t adc16ChannelConfigStruct;
+
+void ADC_Init(void)
+{
+    adc16_config_t adc16ConfigStruct;
+
+    CLOCK_EnableClock(ADC_CLOCK);
+    PORT_SetPinMux(ADC_PORT, ADC_PIN, kPORT_PinDisabledOrAnalog);
+
+    /*
+     * adc16ConfigStruct.referenceVoltageSource = kADC16_ReferenceVoltageSourceVref;
+     * adc16ConfigStruct.clockSource = kADC16_ClockSourceAsynchronousClock;
+     * adc16ConfigStruct.enableAsynchronousClock = true;
+     * adc16ConfigStruct.clockDivider = kADC16_ClockDivider8;
+     * adc16ConfigStruct.resolution = kADC16_ResolutionSE12Bit;
+     * adc16ConfigStruct.longSampleMode = kADC16_LongSampleDisabled;
+     * adc16ConfigStruct.enableHighSpeed = false;
+     * adc16ConfigStruct.enableLowPower = false;
+     * adc16ConfigStruct.enableContinuousConversion = false;
+     */
+    ADC16_GetDefaultConfig(&adc16ConfigStruct);
+    ADC16_Init(ADC_BASE, &adc16ConfigStruct);
+    ADC16_EnableHardwareTrigger(ADC_BASE, false); /* Make sure the software trigger is used. */
+    if (kStatus_Success != ADC16_DoAutoCalibration(ADC_BASE))
+    {
+        // Handle error
+    }
+
+    adc16ChannelConfigStruct.channelNumber = ADC_USER_CHANNEL;
+    adc16ChannelConfigStruct.enableInterruptOnConversionCompleted = false;
+    adc16ChannelConfigStruct.enableDifferentialConversion = false;
+}
+
+uint32_t ADC_Measure(void)
+{
+    /*
+     When in software trigger mode, each conversion would be launched once calling the "ADC16_ChannelConfigure()"
+     function, which works like writing a conversion command and executing it. For another channel's conversion,
+     just to change the "channelNumber" field in channel's configuration structure, and call the
+     "ADC16_ChannelConfigure() again.
+    */
+    ADC16_SetChannelConfig(ADC_BASE, ADC_CHANNEL_GROUP, &adc16ChannelConfigStruct);
+    while (0U == (kADC16_ChannelConversionDoneFlag & ADC16_GetChannelStatusFlags(ADC_BASE, ADC_CHANNEL_GROUP))) {}
+    return ADC16_GetChannelConversionValue(ADC_BASE, ADC_CHANNEL_GROUP);
+}

right/src/peripherals/adc.h

@@ -0,0 +1,19 @@
+#ifndef __ADC_H__
+#define __ADC_H__
+
+// Macros:
+
+    #define ADC_PORT  PORTB
+    #define ADC_PIN   0
+    #define ADC_CLOCK kCLOCK_PortB
+
+    #define ADC_BASE ADC0
+    #define ADC_CHANNEL_GROUP 0U
+    #define ADC_USER_CHANNEL 8U
+
+// Functions:
+
+    extern void ADC_Init(void);
+    extern uint32_t ADC_Measure(void);
+
+#endif