125 lines
3.3 KiB
C
125 lines
3.3 KiB
C
/* Microchip Technology Inc. and its subsidiaries. You may use this software
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* and any derivatives exclusively with Microchip products.
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*
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* THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES, WHETHER
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* EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE, INCLUDING ANY IMPLIED
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* WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY, AND FITNESS FOR A
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* PARTICULAR PURPOSE, OR ITS INTERACTION WITH MICROCHIP PRODUCTS, COMBINATION
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* WITH ANY OTHER PRODUCTS, OR USE IN ANY APPLICATION.
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*
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* IN NO EVENT WILL MICROCHIP BE LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE,
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* INCIDENTAL OR CONSEQUENTIAL LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND
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* WHATSOEVER RELATED TO THE SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS
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* BEEN ADVISED OF THE POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE
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* FULLEST EXTENT ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS
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* IN ANY WAY RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF
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* ANY, THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
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*
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* MICROCHIP PROVIDES THIS SOFTWARE CONDITIONALLY UPON YOUR ACCEPTANCE OF THESE
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* TERMS.
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*/
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/*
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* File:
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* Author:
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* Comments:
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* Revision history:
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*/
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#define F_CPU 4000000UL
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#define RTC_PERIOD (511)
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#define DELAY_TIME 1000
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#define USART3_BAUD_RATE(BAUD_RATE) ((float) (64*F_CPU /(16*(float)BAUD_RATE) )+0.5)
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <util/delay.h>
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#include <string.h>
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#include <stdbool.h>
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#include <stdio.h>
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// This is a guard condition so that contents of this file are not included
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// more than once.
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#ifndef XC_HEADER_TEMPLATE_H
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#define XC_HEADER_TEMPLATE_H
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#include <xc.h> // include processor files - each processor file is guarded.
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uint16_t adcVal;
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void led_init(void)
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{
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/* Disable digital input buffer */
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PORTC.PIN6CTRL &= ~PORT_ISC_gm;
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PORTC.PIN6CTRL |= PORT_ISC_INPUT_DISABLE_gc;
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/* Disable pull-up resistor */
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PORTC.PIN6CTRL &= ~PORT_PULLUPEN_bm;
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PORTE.DIRSET = PIN0_bm;
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PORTE.DIRSET = PIN1_bm;
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PORTE.DIRSET = PIN2_bm;
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}
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void USART3_init(void)
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{
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PORTB.DIRCLR &= ~PIN1_bm;
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PORTB.DIRSET |= PIN0_bm;
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PORTB.DIRCLR = PIN2_bm;
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PORTB.PIN2CTRL |= PORT_PULLUPEN_bm;
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USART3.CTRLB |= USART_RXEN_bm | USART_TXEN_bm; /* Enable both TX and
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RX */
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USART3.BAUD = USART3_BAUD_RATE (9600); /* Setting the baudrate */
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}
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void ADC0_init(void)
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{
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ADC0.CTRLC = ADC_PRESC_DIV4_gc;
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VREF.ADC0REF = VREF_REFSEL_VDD_gc; /* Internal reference */
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ADC0.CTRLA = ADC_ENABLE_bm /* ADC Enable: enabled */
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| ADC_RESSEL_10BIT_gc; /* 10-bit mode */
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/* Select ADC channel */
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ADC0.MUXPOS = ADC_MUXPOS_AIN6_gc;
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}
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void USART3_sendChar(char c)
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{
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while (!(USART3.STATUS & USART_DREIF_bm))
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{
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;
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}
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USART3.TXDATAL = c;
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}
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void USART3_sendString(char *str)
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{
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for(size_t i = 0; i < strlen(str); i++)
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{
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USART3_sendChar(str[i]);
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}
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}
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static int USART3_printChar(char c, FILE *stream)
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{
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USART3_sendChar(c);
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return 0;
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}
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uint16_t ADC0_read(void)
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{
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/* Start ADC conversion */
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ADC0.COMMAND = ADC_STCONV_bm;
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/* Wait until ADC conversion done */
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while ( !(ADC0.INTFLAGS & ADC_RESRDY_bm) )
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{
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;
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}
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/* Clear the interrupt flag by writing 1: */
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ADC0.INTFLAGS = ADC_RESRDY_bm;
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return ADC0.RES;
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}
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bool ADC0_conersionDone(void)
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{
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return (ADC0.INTFLAGS & ADC_RESRDY_bm);
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}
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