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Aufgabenstellung und Unterlagen/Klassenbibliothek/ADC.h

+/*
+ * ADC.h
+ *
+ *    Author: Max Zuidberg
+ *     Email: m.zuidberg@icloud.com
+ */
+
+#ifndef ADC_H_
+#define ADC_H_
+
+
+/*
+ * stdbool.h:               Boolean definitions for the C99 standard
+ * stdint.h:                Variable definitions for the C99 standard
+ * inc/hw_types.h:          Macros for hardware access, both direct and via the
+ *                          bit-band region.
+ * inc/hw_memmap.h:         Macros defining the memory map of the Tiva C Series
+ *                          device. This includes defines such as peripheral
+ *                          base address locations such as GPIO_PORTF_BASE.
+ * inc/hw_ints.h:           Macros defining the interrupt assignments
+ * driverlib/sysctl.h:      Defines and macros for the System Control API of
+ *                          DriverLib. This includes API functions such as
+ *                          SysCtlClockSet.
+ * driverlib/gpio.h:        Defines and macros for GPIO API of DriverLib. This
+ *                          includes API functions such as GPIOPinConfigure.
+ * driverlib/adc.h          Definitions for using the ADC driver
+ * System.h:                Access to current CPU clock and other functions.
+ */
+#include <stdbool.h>
+#include <stdint.h>
+#include "inc/hw_types.h"
+#include "inc/hw_memmap.h"
+#include "inc/hw_ints.h"
+#include "driverlib/sysctl.h"
+#include "driverlib/gpio.h"
+#include "driverlib/adc.h"
+#include "System.h"
+
+
+// Defines for direct register access
+// Base address for the System Control Registers (Datasheet page 237)
+#define SYS_CTL_BASE 0x400FE000
+
+// Offset to add to SYS_CTL_BASE to access RCGCADC Register.
+// (Datasheet page 352)
+#define SYS_CTL_RCGCADC_OFFSET 0x638
+
+// Actual RCGCADC Register
+#define SYS_CTL_RCGCADC_REG HWREG(SYS_CTL_BASE + SYS_CTL_RCGCADC_OFFSET)
+
+// Defines for readability using adcInputPinMapping
+#define AIN_PERIPH  0
+#define AIN_PORT    1
+#define AIN_PIN     2
+
+
+class ADC
+{
+public:
+    ADC();
+    virtual ~ADC();
+    void init(System *sys, uint32_t base, uint32_t sampleSeq, uint32_t analogInput);
+    void setHWAveraging(uint32_t averaging);
+    uint32_t read();
+    float readVolt();
+
+private:
+    bool adcEnabled;
+    uint32_t adcBase, adcSampleSeq, adcInput, adcReading[1];
+    const uint32_t adcInputPinMapping[12][3] =
+                   {{SYSCTL_PERIPH_GPIOE, GPIO_PORTE_BASE, GPIO_PIN_3},
+                    {SYSCTL_PERIPH_GPIOE, GPIO_PORTE_BASE, GPIO_PIN_2},
+                    {SYSCTL_PERIPH_GPIOE, GPIO_PORTE_BASE, GPIO_PIN_1},
+                    {SYSCTL_PERIPH_GPIOE, GPIO_PORTE_BASE, GPIO_PIN_0},
+                    {SYSCTL_PERIPH_GPIOD, GPIO_PORTD_BASE, GPIO_PIN_3},
+                    {SYSCTL_PERIPH_GPIOD, GPIO_PORTD_BASE, GPIO_PIN_2},
+                    {SYSCTL_PERIPH_GPIOD, GPIO_PORTD_BASE, GPIO_PIN_1},
+                    {SYSCTL_PERIPH_GPIOD, GPIO_PORTD_BASE, GPIO_PIN_0},
+                    {SYSCTL_PERIPH_GPIOE, GPIO_PORTE_BASE, GPIO_PIN_5},
+                    {SYSCTL_PERIPH_GPIOE, GPIO_PORTE_BASE, GPIO_PIN_4},
+                    {SYSCTL_PERIPH_GPIOB, GPIO_PORTB_BASE, GPIO_PIN_4},
+                    {SYSCTL_PERIPH_GPIOB, GPIO_PORTB_BASE, GPIO_PIN_5}};
+};
+
+
+#endif /* ADC_H_ */

Aufgabenstellung und Unterlagen/Klassenbibliothek/PWM.h

+/*
+ * PWM.h
+ *
+ *    Author: Max Zuidberg
+ *     Email: m.zuidberg@icloud.com
+ */
+
+#ifndef PWM_H_
+#define PWM_H_
+
+
+/*
+ * stdbool.h:               Boolean definitions for the C99 standard
+ * stdint.h:                Variable definitions for the C99 standard
+ * inc/hw_types.h:          Macros for hardware access, both direct and via the
+ *                          bit-band region.
+ * inc/hw_memmap.h:         Macros defining the memory map of the Tiva C Series
+ *                          device. This includes defines such as peripheral
+ *                          base address locations such as GPIO_PORTF_BASE.
+ * inc/hw_pinmap.h:         Mapping of peripherals to pins for all parts.
+ * driverlib/sysctl.h:      Defines and macros for the System Control API of
+ *                          DriverLib. This includes API functions such as
+ *                          SysCtlClockSet.
+ * driverlib/gpio.h:        Defines and macros for GPIO API of DriverLib. This
+ *                          includes API functions such as GPIOPinConfigure.
+ * driverlib/pwm.h:         Defines and macros for PWM API of DriverLib. This
+ *                          includes API function such as PWMPulseWidthSet.
+ * System.h:                Access to current CPU clock and other functions.
+ */
+#include <stdbool.h>
+#include <stdint.h>
+#include "inc/hw_types.h"
+#include "inc/hw_memmap.h"
+#include "driverlib/pin_map.h"
+#include "driverlib/sysctl.h"
+#include "driverlib/gpio.h"
+#include "driverlib/pwm.h"
+#include "System.h"
+
+
+// Defines for direct register access
+
+// Base address for the System Control Registers (Datasheet page 237)
+#define SYS_CTL_BASE 0x400FE000
+
+// Offset to add to SYS_CTL_BASE to access RCGCPWM Register.
+// (Datasheet page 354)
+#define SYS_CTL_RCGCPWM_OFFSET 0x640
+
+// Actual RCGCPWM Register
+#define SYS_CTL_RCGCPWM_REG HWREG(SYS_CTL_BASE + SYS_CTL_RCGCPWM_OFFSET)
+
+
+class PWM
+{
+public:
+    PWM();
+    virtual ~PWM();
+    void init(System *sys,uint32_t portBase, uint32_t pin1, uint32_t pin2,
+              bool invert = false, uint32_t freq = 5000);
+    void setFreq(uint32_t freq);
+    void setDuty(float duty);
+
+private:
+    System *pwmSystem;
+    float pwmDuty;
+    int32_t pwmComp;
+    bool pwmInvert;
+    uint32_t pwmBase, pwmGen, pwmClockFreq, pwmPeriod, pwmForwardOut,
+             pwmReverseOut, pwmForwardOutBit, pwmReverseOutBit;
+};
+
+#endif /* PWM_H_ */

Aufgabenstellung und Unterlagen/Klassenbibliothek/Timer.h

+/*
+ * Timer.h
+ *
+ *    Author: Max Zuidberg
+ *     Email: m.zuidberg@icloud.com
+ */
+
+#ifndef TIMER_H_
+#define TIMER_H_
+
+
+/*
+ * stdbool.h:               Boolean definitions for the C99 standard
+ * stdint.h:                Variable definitions for the C99 standard
+ * inc/hw_types.h:          Macros for hardware access, both direct and via the
+ *                          bit-band region.
+ * inc/hw_memmap.h:         Macros defining the memory map of the Tiva C Series
+ *                          device. This includes defines such as peripheral
+ *                          base address locations such as GPIO_PORTF_BASE.
+ * inc/hw_ints.h:           Macros defining the interrupt assignments
+ * driverlib/sysctl.h:      Defines and macros for the System Control API of
+ *                          DriverLib. This includes API functions such as
+ *                          SysCtlClockSet.
+ * driverlib/interrupt.h:   Defines and macros for NVIC Controller (Interrupt)
+ *                          API of driverLib. This includes API functions such
+ *                          as IntEnable and IntPrioritySet.
+ * driverlib/timer.h:       Defines and macros for Timer API of driverLib.
+ *                          This includes API functions such as TimerConfigure.
+ * System.h:                Access to current CPU clock and other functions.
+ */
+#include <stdbool.h>
+#include <stdint.h>
+#include "inc/hw_types.h"
+#include "inc/hw_memmap.h"
+#include "inc/hw_ints.h"
+#include "driverlib/sysctl.h"
+#include "driverlib/interrupt.h"
+#include "driverlib/timer.h"
+#include "System.h"
+
+
+// Defines for direct register access
+// Base address for the System Control Registers (Datasheet page 237)
+#define SYS_CTL_BASE 0x400FE000
+
+// Offset to add to SYS_CTL_BASE to access RCGCTIMER Register.
+// (Datasheet page 338)
+#define SYS_CTL_RCGCTIMER_OFFSET 0x604
+
+// Actual RCGCTIMER Register
+#define SYS_CTL_RCGCTIMER_REG HWREG(SYS_CTL_BASE + SYS_CTL_RCGCTIMER_OFFSET)
+
+
+class Timer
+{
+public:
+    Timer();
+    virtual ~Timer();
+    void init(System* sys, uint32_t base, void (*ISR)(void), uint32_t freq = 0);
+    void start();
+    void stop();
+    void clearInterruptFlag();
+    void setPeriodUS(uint32_t periodUS);
+    void setFreq(uint32_t frequency);
+    uint32_t getFreq();
+    uint32_t getPeriodUS();
+
+private:
+    uint32_t timerBase;
+    uint32_t timerLoadValue, timerPrescale, timerPeriodUS = 0, timerFreq = 0;
+    uint_fast8_t timerNumber;
+    System* timerSys;
+};
+
+#endif /* TIMER_H_ */