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Added ADC and rotary encoder functions

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This commit is contained in:
_N0x 2021-12-17 22:26:41 +01:00
parent 4173c08c95
commit 2e6026421e
9 changed files with 399 additions and 65 deletions
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77
EmbeddedSystemsTHM/CLI.c
View File

@ -10,6 +10,8 @@
#include "Taster.h"
#include "Timer.h"
#include "Led.h"
#include "adc.h"
#include "rotaryEncoder.h"
//================================================================================================================================
@ -17,8 +19,6 @@
//================================================================================================================================
#define COUNT_COMMANDS ( sizeof(command) / sizeof(command[0]) )
#define CHAR_DEL 0x7F
#define CHAR_BACKSPACE 0x08
#define CHAR_CR 0x0D
@ -52,6 +52,8 @@ static void cmd_taster(const char* _data);
static void cmd_led_on(const char* _data);
static void cmd_led_off(const char* _data);
static void cmd_alert(const char* _data);
static void cmd_adc(const char* _data);
static void cmd_rotary(const char* _data);
//================================================================================================================================
// command-Tabelle
@ -65,6 +67,8 @@ const struct {
{"BUTTON", &cmd_taster, "Current State of the Buttons"},
{"LED_ON $LED", &cmd_led_on, "Turn on the LED on position $LED"},
{"LED_OFF $LED", &cmd_led_off, "Turn off the LED on position $LED"},
{"ADC", &cmd_adc, "Read the ADC output"},
{"ROTARY", &cmd_rotary, "Read the rotary encoder"},
{"ALERT", &cmd_alert, "RING THE ALTER!!!"},
};
@ -239,12 +243,16 @@ static void cmd_help(const char* _data){
// Rückgabewert: keine
//================================================================================================================================
static void cmd_taster(const char* _data){
print_string("Taster 1: ");
print_string(Taster1_get() ? "1" : "0");
print_string(NEXT_LINE);
print_string("Taster 2: ");
print_string(Taster2_get() ? "1" : "0");
print_string(NEXT_LINE);
print_string("Taster 3: ");
print_string(Taster3_get() ? "1" : "0");
print_string(NEXT_LINE);
print_string("Taster 4: ");
print_string(Taster4_get() ? "1" : "0");
print_string(NEXT_LINE);
}
@ -329,3 +337,68 @@ static void cmd_alert(const char* _data){
}
//================================================================================================================================
// Funktion: cmd_adc
// Wird verwendet um die Daten von Poti und LM35 zu lesen
// Parameter: _data: Zeichenkette mit Parametern des Befehls.
//
// Rückgabewert: keine
//================================================================================================================================
static void cmd_adc(const char* _data){
char potiData[50];
char lm35Data[50];
int loopInterval = 500;
int repeat = strcmp(_data, "R") == 0 ? 1 : 0; /* Check if repeat flag is set*/
do
{
if(Timer_getTick() - g_startMS >= loopInterval){
g_startMS=Timer_getTick();
// Print Potentiometer info
sprintf(potiData, "Poti: %d", adc_get_poti());
//sprintf(potiData, "Poti: %f", (adc_get_poti() / 1023.0)); // uses floats - disabled for performance reasons.
print_string(potiData);
print_string(NEXT_LINE);
// Print LM35 temperature
sprintf(lm35Data, "LM35: %d\xC2\xB0 C", (int)(adc_get_LM35() * (5000 / 1024) / 10));
//sprintf(lm35Data, "LM35: %f\xC2\xB0 C", (adc_get_LM35() * (5000 / 1024.0) / 10)); // uses floats - disabled for performance reasons.
print_string(lm35Data);
print_string(NEXT_LINE);
print_string("----------");
print_string(NEXT_LINE);
}
} while (repeat); // repeat if repeat-flag is given
}
//================================================================================================================================
// Funktion: cmd_rotary
// Wird verwendet um die Daten von Poti und LM35 zu lesen
// Parameter: _data: Zeichenkette mit Parametern des Befehls.
//
// Rückgabewert: keine
//================================================================================================================================
static void cmd_rotary(const char* _data){
char encoderText[50];
int16_t tmp=-32768, cnt=0;
do
{
cnt = drehgeber_get();
if(cnt != tmp)
{
sprintf(encoderText, "Rotary Encoder: %d", drehgeber_get());
print_string(encoderText);
print_string(NEXT_LINE);
tmp = cnt;
}
} while (strcmp(_data, "R") == 0 ? 1 : 0); /* Check if repeat flag is set*/
}

84
EmbeddedSystemsTHM/EmbeddedSystemsTHM.cproj
View File

@ -112,45 +112,51 @@
<PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
<ToolchainSettings>
<AvrGcc>
<avrgcc.common.Device>-mmcu=atmega1284p -B "%24(PackRepoDir)\atmel\ATmega_DFP\1.6.364\gcc\dev\atmega1284p"</avrgcc.common.Device>
<avrgcc.common.optimization.RelaxBranches>True</avrgcc.common.optimization.RelaxBranches>
<avrgcc.common.outputfiles.hex>True</avrgcc.common.outputfiles.hex>
<avrgcc.common.outputfiles.lss>True</avrgcc.common.outputfiles.lss>
<avrgcc.common.outputfiles.eep>True</avrgcc.common.outputfiles.eep>
<avrgcc.common.outputfiles.srec>True</avrgcc.common.outputfiles.srec>
<avrgcc.common.outputfiles.usersignatures>False</avrgcc.common.outputfiles.usersignatures>
<avrgcc.compiler.general.ChangeDefaultCharTypeUnsigned>True</avrgcc.compiler.general.ChangeDefaultCharTypeUnsigned>
<avrgcc.compiler.general.ChangeDefaultBitFieldUnsigned>True</avrgcc.compiler.general.ChangeDefaultBitFieldUnsigned>
<avrgcc.compiler.symbols.DefSymbols>
<ListValues>
<Value>DEBUG</Value>
</ListValues>
</avrgcc.compiler.symbols.DefSymbols>
<avrgcc.compiler.directories.IncludePaths>
<ListValues>
<Value>%24(PackRepoDir)\atmel\ATmega_DFP\1.6.364\include\</Value>
</ListValues>
</avrgcc.compiler.directories.IncludePaths>
<avrgcc.compiler.optimization.level>Optimize debugging experience (-Og)</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\1.6.364\include\</Value>
</ListValues>
</avrgcc.assembler.general.IncludePaths>
<avrgcc.assembler.debugging.DebugLevel>Default (-Wa,-g)</avrgcc.assembler.debugging.DebugLevel>
</AvrGcc>
<avrgcc.common.Device>-mmcu=atmega1284p -B "%24(PackRepoDir)\atmel\ATmega_DFP\1.6.364\gcc\dev\atmega1284p"</avrgcc.common.Device>
<avrgcc.common.optimization.RelaxBranches>True</avrgcc.common.optimization.RelaxBranches>
<avrgcc.common.outputfiles.hex>True</avrgcc.common.outputfiles.hex>
<avrgcc.common.outputfiles.lss>True</avrgcc.common.outputfiles.lss>
<avrgcc.common.outputfiles.eep>True</avrgcc.common.outputfiles.eep>
<avrgcc.common.outputfiles.srec>True</avrgcc.common.outputfiles.srec>
<avrgcc.common.outputfiles.usersignatures>False</avrgcc.common.outputfiles.usersignatures>
<avrgcc.compiler.general.ChangeDefaultCharTypeUnsigned>True</avrgcc.compiler.general.ChangeDefaultCharTypeUnsigned>
<avrgcc.compiler.general.ChangeDefaultBitFieldUnsigned>True</avrgcc.compiler.general.ChangeDefaultBitFieldUnsigned>
<avrgcc.compiler.symbols.DefSymbols>
<ListValues>
<Value>DEBUG</Value>
</ListValues>
</avrgcc.compiler.symbols.DefSymbols>
<avrgcc.compiler.directories.IncludePaths>
<ListValues>
<Value>%24(PackRepoDir)\atmel\ATmega_DFP\1.6.364\include\</Value>
</ListValues>
</avrgcc.compiler.directories.IncludePaths>
<avrgcc.compiler.optimization.level>Optimize debugging experience (-Og)</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\1.6.364\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="cli.c">
<SubType>compile</SubType>
</Compile>
@ -166,6 +172,12 @@
<Compile Include="main.c">
<SubType>compile</SubType>
</Compile>
<Compile Include="rotaryEncoder.c">
<SubType>compile</SubType>
</Compile>
<Compile Include="rotaryEncoder.h">
<SubType>compile</SubType>
</Compile>
<Compile Include="StopLight.c">
<SubType>compile</SubType>
</Compile>

10
EmbeddedSystemsTHM/Timer.c
View File

@ -12,14 +12,14 @@ volatile uint16_t cntr = 0;
void
Timer_init (void){
TCCR0A |= (1<<1); /* Set WGM01 to high to enable CTC mode */
TCCR0B |= (11<<0); /* Set the clock select bit to pre-scaler 3
TCCR0A |= (1<<WGM01); /* Set WGM01 to high to enable CTC mode */
TCCR0B |= (3<<CS00); /* Set the clock select bit to pre-scaler 3
16MHz / 64 (pre-scaler 3) ==> 250KHz */
TIMSK0 |= (1<<1); /* Set OCIE0A to high to rise an interrupt when the counter matches OCR0A */
TIMSK0 |= (1<<OCIE0A); /* Set OCIE0A to high to rise an interrupt when the counter matches OCR0A */
OCR0A = 250 ; /* Set the Output Compare Register 0 A to 125 to trigger interrupt every 1ms
16MHz / 64 (pre-scaler 3) / 250 ==> 1KHz (1ms) */
OCR0A = 250 - 1; /* Set the Output Compare Register 0 A to 125 to trigger interrupt every 1ms
16MHz / 64 (pre-scaler 3) / (250 -1 ) ==> 1KHz (1ms) */
}

1
EmbeddedSystemsTHM/UART.c
View File

@ -21,7 +21,6 @@ volatile uint8_t TxActive;
void
uart_init(void)
{
UBRR0 = 103; /* set BAUD rate to 9600 */
UCSR0C |=

74
EmbeddedSystemsTHM/adc.c Normal file
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@ -0,0 +1,74 @@
/*
* adc.c
*
* Created: 09/12/2021 16:31:16
* Author: n0x
*/
#include "adc.h"
void
adc_init(void)
{
ADMUX = (1<<REFS1)|
(0<<REFS0)| /* Set Voltage reference to 2.56V */
(0<<ADLAR) /* Set ADLAR to 0 to not left adjust the presentation of the conversion result */
;
ADCSRA = (1<<ADEN)| /* Enable ADC */
(0<<ADATE)| /* Disable the ADC auto trigger */
(1<<ADIE)| /* Enable the ADC interrupt */
(1<<ADPS2)|
(1<<ADPS1)|
(1<<ADPS0) /* Set ADC Prescaler to 128 */
;
}
volatile int done = 1;
/* ADC 1 */
uint16_t
adc_get_poti(void)
{
uint16_t adc;
ADCSRA &= ~(1<<ADIE); /* Disable interrupt */
ADMUX |= (1<<MUX0); /* Set ADMUX to access ADC channel 1 */
ADCSRA |= (1<<ADSC); /* Start the conversion */
done = 0; /* reset the done flag to false */
while(done == 0); /* Wait till conversion completes */
adc = ADC;
ADCSRA |= (1<<ADIE); /* Enable the interrupt again */
return adc;
}
/* ADC 0 */
uint16_t
adc_get_LM35(void)
{
uint16_t adc;
ADCSRA &= ~(1<<ADIE); /* Disable interrupt */
ADMUX &= (0<<MUX0); /* Set ADMUX to access ADC channel 0 */
ADCSRA |= (1<<ADSC); /* Start the conversion */
done = 0; /* reset the done flag to false */
while(done == 0); /* Wait till conversion completes */
adc = ADC;
ADCSRA |= (1<<ADIE); /* Enable the interrupt again */
return adc;
}
ISR(ADC_vect){
done = 1; /* set the done flag to true */
}

19
EmbeddedSystemsTHM/adc.h Normal file
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@ -0,0 +1,19 @@
/*
* adc.h
*
* Created: 09/12/2021 16:31:06
* Author: n0x
*/
#include <avr/io.h>
#include <avr/interrupt.h>
#ifndef ADC_H_
#define ADC_H_
void adc_init(void);
uint16_t adc_get_poti(void);
uint16_t adc_get_LM35(void);
#endif /* ADC_H_ */

32
EmbeddedSystemsTHM/main.c
View File

@ -10,12 +10,16 @@
#include "Timer.h"
#include "Tasks.h"
#include "StopLight.h"
#include "UART.h"
#include "CLI.h"
#include "uart.h"
#include "cli.h"
#include "adc.h"
#include "rotaryEncoder.h"
#include <avr/interrupt.h>
#define F_CPU 1000000
#include <util/delay.h>
#include <stdio.h>
/* function declarations */
void buttonTest (void);
@ -31,32 +35,18 @@ main (void)
Taster_init();
Led_init();
uart_init();
adc_init();
drehgeber_init();
line_interpreter_init(uart_send_byte);
uart_send_string("Welcome to the ATmega1284P CLI. Type HELP to display all options.\r\n");
uart_send_string("Welcome to the ATmega1284P CLI. Type HELP to display all options.\r\n");
while (1)
{
/* UART Standalone Test */
/*
if(uart_data_available()){
char data[500];
data[0] = uart_get_data();
uart_send_isr(data);
}
*/
if(uart_data_available()){
line_interpreter_get_data(uart_get_data());
}
//buttonTest();
//runningLight();
//blinkLedWithTimer();
//runStopLightTask1();
//runStopLightTask2();
//uart_send ("uart_send: Hello World\n");
}
}

148
EmbeddedSystemsTHM/rotaryEncoder.c Normal file
View File

@ -0,0 +1,148 @@
/*
* rotaryEncoder.c
*
* Created: 16/12/2021 16:34:05
* Author: n0x
*/
#include "rotaryEncoder.h"
#define ROTA PORTC7
#define ROTB PORTC6
#define ROTBUTTON PORTC5
/* enums */
enum{
S2, S3, S4, S5, S6, S7,
INIT, WAIT
} RotaryState = INIT; /* Emus for the stoplight task (task 3) */
int16_t count;
void
drehgeber_init(void)
{
DDRC &= ~(7<<DDC5); /* Set bit 5-7 of Data Direction Register C as input */
PORTC |= (7<<PORTC5); /* Initialize bit 5-7 of PORTC as for pull up resistor */
/* With Timer */
// TCCR2A |= (1<<WGM21);
// TCCR2B |= (3<<CS20);
// TIMSK2 |= (1<<OCIE2A);
// OCR2A = 250 - 1;
/* With external interrupt */
PCICR |= (1<<PCIE2);
PCMSK2 |= (1<<PCINT23)|(1<<PCINT22);
}
// ISR(TIMER2_COMPA_vect)
// {
// drehgeber_process();
// }
ISR(PCINT2_vect)
{
drehgeber_process();
}
void
drehgeber_process(void)
{
uint8_t a,b, enc;
a = ((PINC & (1<<ROTA)) == 0);
b = ((PINC & (1<<ROTB)) == 0)<<1;
enc=a+b;
switch(RotaryState)
{
case INIT:
RotaryState = WAIT;
break;
case WAIT:
if(enc == 1)
{
RotaryState = S2;
}
if(enc == 2)
{
RotaryState = S5;
}
break;
case S2:
if(enc == 3)
{
RotaryState = S3;
}
if(enc == 0)
{
RotaryState = WAIT;
}
break;
case S3:
if(enc == 2)
{
RotaryState = S4;
}
if(enc == 1)
{
RotaryState = S2;
}
break;
case S4:
if(enc == 0)
{
count++;
RotaryState = WAIT;
}
if(enc == 3)
{
RotaryState = S3;
}
break;
case S5:
if(enc == 3)
{
RotaryState = S6;
}
if(enc == 0)
{
RotaryState = WAIT;
}
break;
case S6:
if(enc == 1)
{
RotaryState = S7;
}
if(enc == 2)
{
RotaryState = S5;
}
break;
case S7:
if(enc == 0)
{
count--;
RotaryState = WAIT;
}
if(enc == 3)
{
RotaryState = S6;
}
break;
}
}
int16_t drehgeber_get(void)
{
return count;
}

19
EmbeddedSystemsTHM/rotaryEncoder.h Normal file
View File

@ -0,0 +1,19 @@
/*
* rotaryEncoder.h
*
* Created: 16/12/2021 16:33:57
* Author: n0x
*/
#include <avr/io.h>
#include <avr/interrupt.h>
#ifndef ROTARYENCODER_H_
#define ROTARYENCODER_H_
void drehgeber_init(void);
void drehgeber_process(void);
int16_t drehgeber_get(void);
#endif /* ROTARYENCODER_H_ */