//*****************************************************************************
// File Name : datalogger.c
//
// Title : Windlogger
// Revision : 0.3 22-10-2006
// Revision History:
// When Who Description of change
// ----------- ----------- -----------------------
// 20-Oct-2002 pstang Created the program
// Oct - 2006 RifRaf changes stuff
//*****************************************************************************
//----- Include Files ---------------------------------------------------------
#include <avr/io.h> // include I/O definitions (port names, pin names, etc)
#include <avr/signal.h> // include "signal" names (interrupt names)
#include <avr/interrupt.h> // include interrupt support
#include "global.h" // include our global settings
#include "uart.h" // include uart function library
#include "rprintf.h" // include printf function library
#include "timer.h" // include timer function library (timing, PWM, etc)
#include "a2d.h" // include A/D converter function library
#include "vt100.h" // include VT100 terminal support
#include "extint.h" // include external interrupt library
#define SetBit(BIT, PORT) PORT |= (1<<BIT)
#define ClearBit(BIT, PORT) PORT &= ~(1<<BIT)
#define IsHigh(BIT, PORT) (PORT & (1<<BIT)) != 1
#define IsLow(BIT, PORT) (PORT & (1<<BIT)) == 1
typedef struct FSM_State_s {
unsigned TPD7 : 1;
unsigned TPD6 : 1;
unsigned TPD5 : 1;
unsigned TPD4 : 1;
unsigned TPC2 : 1;
unsigned TPC3 : 1;
unsigned TPC4 : 1;
unsigned TPC5 : 1;
} FSM_State_t;
typedef unsigned int PTRType;
typedef struct stateEntry_s {
PTRType next;
FSM_State_t state;
} stateEntry_t;
typedef struct stateBities_s {
union {
FSM_State_t state;
unsigned stateBits;
};
} stateBities_t;
#define on 0
#define off 1
//------------
// PC5 , PC4 , PC3 , PC2 , PD4 , PD5 , PD6 , PD7 ,
stateEntry_t stateTable[] = {
{ 0, { on , on , on , off , off , off , off , off }}, /* index: 31 0 */
{ 1, { on , on , off , off , off , off , off , on }}, /* index: 62 1 */
{ 2, { on , on , off , off , off , off , off , off }}, /* index: 63 2 */
{ 3, { on , off , on , off , off , off , off , off }}, /* index: 95 3 */
{ 4, { on , off , off , off , off , on , off , off }}, /* index: 123 4 */
{ 5, { on , off , off , off , off , off , on , on }}, /* index: 124 5 */
{ 6, { on , off , off , off , off , off , off , on }}, /* index: 126 6 */
{ 7, { on , off , off , off , off , off , off , off }}, /* index: 127 7 */
{ 8, { off , on , on , on , off , off , off , off }}, /* index: 143 8 */
{ 9, { off , on , on , off , off , off , off , off }}, /* index: 159 9 */
{ 10, { off , on , off , on , off , off , off , off }}, /* index: 175 10 */
{ 11, { off , on , off , off , off , off , off , on }}, /* index: 190 11 */
{ 12, { off , on , off , off , off , off , off , off }}, /* index: 191 12 */
{ 13, { off , off , on , on , on , off , off , off }}, /* index: 199 13 */
{ 14, { off , off , on , on , off , off , off , off }}, /* index: 207 14 */
{ 15, { off , off , on , off , on , off , off , off }}, /* index: 215 15 */
{ 16, { off , off , on , off , off , off , off , off }}, /* index: 223 16 */
{ 17, { off , off , off , on , on , on , off , off }}, /* index: 227 17 */
{ 18, { off , off , off , on , on , off , off , off }}, /* index: 231 18 */
{ 19, { off , off , off , on , off , on , off , off }}, /* index: 235 19 */
{ 20, { off , off , off , on , off , off , off , off }}, /* index: 239 20 */
{ 21, { off , off , off , off , on , on , on , on }}, /* index: 240 21 */
{ 22, { off , off , off , off , on , on , off , off }}, /* index: 243 22 */
{ 23, { off , off , off , off , on , off , on , off }}, /* index: 245 23 */
{ 24, { off , off , off , off , on , off , off , off }}, /* index: 247 24 */
{ 25, { off , off , off , off , off , on , on , on }}, /* index: 248 25 */
{ 26, { off , off , off , off , off , on , on , off }}, /* index: 249 26 */
{ 27, { off , off , off , off , off , on , off , on }}, /* index: 250 27 */
{ 28, { off , off , off , off , off , on , off , off }}, /* index: 251 28 */
{ 29, { off , off , off , off , off , off , on , on }}, /* index: 252 29 */
{ 30, { off , off , off , off , off , off , on , off }}, /* index: 253 30 */
{ 31, { off , off , off , off , off , off , off , on }} /* index: 254 31 */
};
//global variables
unsigned int volts; // Current value of Battery Volts
unsigned int shuntvolts; // Current value of Shunt Volts (AMPS)
unsigned int mode; // Dummy load on or off
volatile u16 Int0Count;
volatile u16 Int1Count;
u16 rpm; // AC Volts IN frequency per 0 seconds
u16 windpulse; // Windspeed Pulses per 0 seconds
u16 direction; // Wind Direction
// functions
void SwitchToCharging(void);
void SwitchToLoad(void);
void rpmSetup(void);
int windDirection(void);
void myInt0Handler(void);
void myInt1Handler(void);
//----- Begin Code ------------------------------------------------------------
int main(void)
{
uartInit();
uartSetBaudRate(4800); // set UART speed to 9600 baud
rprintfInit(uartSendByte);
timerInit();
a2dInit();
vt100ClearScreen();
//rprintf("hello");
DDRC = 0x00;
DDRD = 0xF0;
PORTC = 0x00;
PORTD = 0xF0;
a2dSetPrescaler(ADC_PRESCALE_DIV64);
a2dSetReference(ADC_REFERENCE_AVCC);
rpmSetup();
SwitchToCharging(); mode = 1;
while (1) // do this until finished or broken
{
volts = a2dConvert10bit(0); // Get ADC Value
shuntvolts = a2dConvert10bit(1); // Get ADC Value
Int0Count = 0; // reset interrupt counters
Int1Count = 0; // reset interrupt counters
timerPause(3000); // wait 0 seconds
windDirection();
rpm = Int0Count; // get counter values
windpulse = Int1Count; // get counter values
if (volts > 580) { mode = 0; SwitchToLoad(); }
if (volts < 540) { mode = 1; SwitchToCharging(); }
vt100SetCursorPos(1,1);
rprintf("[<V>%d</V><A>%d</A><R>%d</R><S>%d</S><M>%d<M><W>%d</W>]\r\n",volts,shuntvolts,rpm,windpulse,mode,direction);
}
}
int windDirection() {
stateEntry_t test;
int n;
test.state.TPD7 = IsHigh(7, PORTD);
test.state.TPD6 = IsHigh(6, PORTD);
test.state.TPD5 = IsHigh(5, PORTD);
test.state.TPD4 = IsHigh(4, PORTD);
test.state.TPC2 = IsHigh(2, PORTC);
test.state.TPC3 = IsHigh(3, PORTC);
test.state.TPC4 = IsHigh(4, PORTC);
test.state.TPC5 = IsHigh(5, PORTC);
for (n = 0; n < 32; n++) {
if( stateTable[n].stateBits == test.stateBits ) {
return stateTable[n].next;
}
}
return -1; // we dont know!?
}
void rpmSetup(void)
{
extintInit();
extintConfigure(EXTINT0, EXTINT_EDGE_RISING);
extintConfigure(EXTINT1, EXTINT_EDGE_RISING);
extintAttach(EXTINT0, myInt0Handler);
extintAttach(EXTINT1, myInt1Handler);
sbi(GIMSK, INT0);
sbi(GIMSK, INT1);
}
void myInt0Handler(void)
{
Int0Count++;
}
void myInt1Handler(void)
{
Int1Count++;
}
void SwitchToCharging(void) {
ClearBit(0, PORTB) ;
return;
}
void SwitchToLoad(void) {
SetBit(0, PORTB) ;
return;
}