Commit 8753b829 authored by medlem's avatar medlem

Fixed LF task 3. Also added new cool screen and adc feature. Currently only LF in copied file.

parent 89bc499e
......@@ -34,14 +34,13 @@
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......@@ -54,86 +53,97 @@
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......
......@@ -8,10 +8,10 @@
#include <avr/io.h>
void adc_init(){
ADC0.CTRLA |= (ADC_RESSEL_8BIT_gc); //Set resolution, we choose 8 bits
ADC0.CTRLA |= (ADC_RESSEL_10BIT_gc); //Set resolution, we choose 8 bits
ADC0.CTRLB |= (ADC_SAMPNUM_ACC4_gc); //OPTIONAL: We can use multiple samples if we like, example here with 4
//More samples gives a better result but takes longer
//More samples gives a better result but takes longer.
ADC0.CTRLC |= (ADC_REFSEL_VDDREF_gc); //We select to use the supply voltage (VDD) as voltage reference
ADC0.CTRLC |= (ADC_PRESC_DIV2_gc); //ADC clock prescaler, best accuracy when run below 2MHz. (Here div2 ~1.46 MHz)
......@@ -19,7 +19,7 @@ void adc_init(){
}
uint8_t adc_read(uint8_t channel){
uint16_t adc_read(uint8_t channel){
ADC0.MUXPOS = channel; //Select input on the ADC mux
//NOTE: We can use = here because this is the only thing the register holds. Neat!
......@@ -30,6 +30,6 @@ uint8_t adc_read(uint8_t channel){
while(!(ADC0.INTFLAGS & ADC_RESRDY_bm)){
//Wait for the results ready flag to be set
}
return ADC0.RESL; //Return 8 bit result
return ADC0.RES; //Return 10 bit result
}
......@@ -11,6 +11,6 @@
void adc_init(void);
uint8_t adc_read(uint8_t channel);
uint16_t adc_read(uint8_t channel);
#endif /* ADC_H_ */
\ No newline at end of file
......@@ -16,30 +16,28 @@
#include "uart.h"
#define LIGHT 0x01 // Light sensor is connected to ADC channel 1 (which is on port D pin 1)
#define KLAKK 0x01 // OV-POT KLAKK is connected to ADC channel 1 (which is on port D pin 1)
uint8_t data = 0;
uint16_t data = 0;
int main(void)
{
uart_init(BAUD_9600); //Initiate the uart (provided in uart.c) with a baudrate of 9600
uart_init(BAUD_9600); //Initiate the usart (provided in usart.c) with a baudrate of 9600
adc_init(); //Initiate the adc (The student has to write this function)
sei(); //If we want to receive via UART we need interrupts enabled.
//NOTE: UART isn't used to receive here and as such this isn't required.
sei(); //If we want to receive via usart we need interrupts enabled.
//NOTE: usart isn't used to receive here and as such this isn't required.
while (1)
{
data = adc_read(LIGHT); //Read the analog voltage on channel 6, connected to light sensor
//The light sensor returns the ones complement (the opposite) of the brightness:
data = 0xff - data;
data = adc_read(KLAKK); //Read the analog voltage on channel 6, connected to OV-POT KLAKK
printf("Light intensity is currently %d brightness points!\r\n", data); //Print out the value neatly using printf
printf("ADC is reading %u from OV-POT KLAKK!\r\n", data); //Print out the value neatly using printf
/*
About printf: Handles formatting of your print to terminal. This includes special characters, values of variables and more.
It takes one string and any variables you want to print.
......

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</ListValues>
</avrgcc.compiler.directories.IncludePaths>
<avrgcc.compiler.optimization.level>Optimize (-O1)</avrgcc.compiler.optimization.level>
<avrgcc.compiler.optimization.PackStructureMembers>True</avrgcc.compiler.optimization.PackStructureMembers>
<avrgcc.compiler.optimization.AllocateBytesNeededForEnum>True</avrgcc.compiler.optimization.AllocateBytesNeededForEnum>
<avrgcc.compiler.optimization.DebugLevel>Default (-g2)</avrgcc.compiler.optimization.DebugLevel>
<avrgcc.compiler.warnings.AllWarnings>True</avrgcc.compiler.warnings.AllWarnings>
<avrgcc.linker.libraries.Libraries>
<ListValues>
<Value>libm</Value>
</ListValues>
</avrgcc.linker.libraries.Libraries>
<avrgcc.assembler.general.IncludePaths>
<ListValues>
<Value>%24(PackRepoDir)\atmel\ATmega_DFP\1.2.209\include</Value>
</ListValues>
</avrgcc.assembler.general.IncludePaths>
<avrgcc.assembler.debugging.DebugLevel>Default (-Wa,-g)</avrgcc.assembler.debugging.DebugLevel>
</AvrGcc>
</ToolchainSettings>
</PropertyGroup>
<ItemGroup>
<Compile Include="adc.c">
<SubType>compile</SubType>
</Compile>
<Compile Include="adc.h">
<SubType>compile</SubType>
</Compile>
<Compile Include="display.c">
<SubType>compile</SubType>
</Compile>
<Compile Include="display.h">
<SubType>compile</SubType>
</Compile>
<Compile Include="driv_OLED.c">
<SubType>compile</SubType>
</Compile>
<Compile Include="driv_OLED.h">
<SubType>compile</SubType>
</Compile>
<Compile Include="font8x8.h">
<SubType>compile</SubType>
</Compile>
<Compile Include="fonts.h">
<SubType>compile</SubType>
</Compile>
<Compile Include="main.c">
<SubType>compile</SubType>
</Compile>
<Compile Include="spi.c">
<SubType>compile</SubType>
</Compile>
<Compile Include="spi.h">
<SubType>compile</SubType>
</Compile>
</ItemGroup>
<Import Project="$(AVRSTUDIO_EXE_PATH)\\Vs\\Compiler.targets" />
</Project>
\ No newline at end of file
/*
* adc.c
*
* Created: 13.02.2017 02:04:10
* Author: Petter
*/
#include <avr/io.h>
void adc_init(){
ADC0.CTRLA |= (ADC_RESSEL_10BIT_gc); //Set resolution, we choose 8 bits
ADC0.CTRLB |= (ADC_SAMPNUM_ACC4_gc); //OPTIONAL: We can use multiple samples if we like, example here with 4
//More samples gives a better result but takes longer.
ADC0.CTRLC |= (ADC_REFSEL_VDDREF_gc); //We select to use the supply voltage (VDD) as voltage reference
ADC0.CTRLC |= (ADC_PRESC_DIV2_gc); //ADC clock prescaler, best accuracy when run below 2MHz. (Here div2 ~1.46 MHz)
ADC0.CTRLA |= (ADC_ENABLE_bm); //Enable the ADC
}
uint16_t adc_read(uint8_t channel){
ADC0.MUXPOS = channel; //Select input on the ADC mux
//NOTE: We can use = here because this is the only thing the register holds. Neat!
ADC0.INTFLAGS |= (ADC_RESRDY_bm); //Clear the results ready flag
ADC0.COMMAND |= (ADC_STCONV_bm); //Start a conversion
while(!(ADC0.INTFLAGS & ADC_RESRDY_bm)){
//Wait for the results ready flag to be set
}
return ADC0.RES; //Return 10 bit result
}
/*
* adc.h
*
* Created: 27.02.2017 16:51:27
* Author: Petter
*/
#ifndef ADC_H_
#define ADC_H_
void adc_init(void);
uint16_t adc_read(uint8_t channel);
#endif /* ADC_H_ */
\ No newline at end of file
//
// display.c
//
#define F_CPU 3333333UL
// System headers
#include <avr/io.h>
#include <util/delay.h>
#include <stdbool.h>
// Project headers
#include "display.h"
#include "spi.h"
#include "font8x8.h"
#define DSP_MODE_bm (1 << 3)
#define DSP_MODE_PORT PORTC
#define DSP_RST_bm (1 << 7)
#define DSP_RST_PORT PORTC
// This file contains a simple driver for the display so that one can print characters and strings.
// You shouldn't need to do anything in this file for things to work.
// Of course, you're welcome to check it out if you want to see how things work under the hood.
void DISP_rst();
void DISP_transmit_cmd(uint8_t cmd);
void DISP_transmit_data(uint8_t data);
void DISP_set_mode(bool mode);
int cursor_row = 0;
int cursor_col = 0;
void DISP_print(const char* str)
{
while(*str != '\0')
{
DISP_putc(*str);
str++;
}
}
void DISP_putc(char c)
{
if(c == '\n')
{
if(cursor_col == 0)
{
DISP_putc(' ');
}
while(cursor_col != 0)
{
DISP_putc(' ');
}
return;
}
else if(c == '\t')
{
int count = 3 - (cursor_col % 4);
for(int i = 0; i < count; i++)
{
DISP_putc(' ');
}
return;
}
else if(c < 0x20)
{
return;
}
else if(c < 0x7F)
{
uint8_t d[8] = {
pgm_read_byte(&(font8x8_basic[(int)c - 0x20][0])),
pgm_read_byte(&(font8x8_basic[(int)c - 0x20][1])),
pgm_read_byte(&(font8x8_basic[(int)c - 0x20][2])),
pgm_read_byte(&(font8x8_basic[(int)c - 0x20][3])),
pgm_read_byte(&(font8x8_basic[(int)c - 0x20][4])),
pgm_read_byte(&(font8x8_basic[(int)c - 0x20][5])),
pgm_read_byte(&(font8x8_basic[(int)c - 0x20][6])),
pgm_read_byte(&(font8x8_basic[(int)c - 0x20][7]))
};
for(uint8_t b = 0; b < 8; b++)
{
uint8_t db = 0;
db |= (((d[0] >> b) & 0x1) << 0);
db |= (((d[1] >> b) & 0x1) << 1);
db |= (((d[2] >> b) & 0x1) << 2);
db |= (((d[3] >> b) & 0x1) << 3);
db |= (((d[4] >> b) & 0x1) << 4);
db |= (((d[5] >> b) & 0x1) << 5);
db |= (((d[6] >> b) & 0x1) << 6);
db |= (((d[7] >> b) & 0x1) << 7);
DISP_transmit_data(db);
}
<