DAC.cpp

// put implementations for functions, explain how it works
// put your names here, date
#include <stdint.h>
#include "../inc/tm4c123gh6pm.h"
#include "DAC.h"

// **************DAC_Init*********************
// Initialize 6-bit DAC, called once 
// Input: none
// Output: none
void DAC_Init(void){
	SYSCTL_RCGCGPIO_R |= 0x02;
	while(SYSCTL_RCGCGPIO_R == 0) {}
	GPIO_PORTB_DIR_R |= 0x3F;
	GPIO_PORTB_DEN_R |= 0x3F;
}

// **************DAC_Out*********************
// output to DAC
// Input: 6-bit data, 0 to 18
// Input=n is converted to n*3.3V/18
// Output: none
void DAC_Out(unsigned char data){
	GPIO_PORTB_DATA_R = data;						//puts the data in the DAC
}