void ToggleEpinOfLCD(void)
{
LCD_E = 1; // Give a pulse on E pin
__delay_us(E_Delay); // so that LCD can latch the
LCD_E = 0; // data from data bus
__delay_us(E_Delay);
}
/*==============================================================================
Send Function (Called by sendfivetimes function)
==============================================================================*/
void send(unsigned char cAddress, unsigned char cCommand, unsigned char c, unsigned char flip) {
if (c == 1) {
pingSony(91);
__delay_us(700);
i = 0;
j = 0;
while (i < 7) {
cTemp = cCommand & 0b00000001; //AND THE VALUE WITH BINARY NUMBER TO CHECK IF THE LSB IS 0
if (cTemp == 1) {
pingSony(44);
} else {
pingSony(21);
}
cCommand = cCommand >> 1; //BIT SHIFT OVER 1
__delay_us(680);
i++;
}
while (j < 5) {
cTemp = cAddress & 0b00000001; //AND THE VALUE WITH BINARY NUMBER TO CHECK IF THE LSB IS 0
if (cTemp == 1) {
pingSony(44);
} else {
pingSony(21);
}
cAddress = cAddress >> 1; //BIT SHIFT OVER 1
__delay_us(680);
j++;
}
} else if (c == 2) {
int main(int argc, char** argv) {
pic_setup();
volatile int i=0;
int div=100 ;
int gate1=300;
int gate2=1000;
int t1 = gate1;
int t2 = gate2-t1;
while (1) {
sound(300,30);
sound(150,45);
}
while (1) {
DEBUG_LED = 1;
for (i=0; i<t1; i+=1) { __delay_us(1); }
DEBUG_LED = 0;
for (i=0; i<t2; i+=1) { __delay_us(1); }
t1+=div;
t2-=div;
if (t1>gate2 || t1<gate1) {
div=-div;;
}
}
return (EXIT_SUCCESS);
}
void delay_us(unsigned int value) //Workaround f�r gr�ssere Delays bei 20MHz Systemtakt
{
for(;value>=100;value-=100)
__delay_us(100);
for(;value>=10;value-=10)
__delay_us(10);
}
unsigned char ow_reset()
{
unsigned char ret = 0;
di();
// Pulling pin low
//PORTBbits.RB4 = 0;
//TRISBbits.TRISB4 = 0;
ONEWIRE_PORT = 0;
ONEWIRE_TRIS = 0;
__delay_us(490);
// Pulling up
//TRISBbits.TRISB4 = 1;
ONEWIRE_TRIS = 1;
// Checking for response
__delay_us(60);
//if( PORTBbits.RB4 == 0 ){
if( ONEWIRE_PORT == 0 ){
//printf("DS18b20 responded\r\n");
ret = 1;
}else{
//printf("ONEWIRE ERROR: Device didnt respond\r\n");
ret = 0;
}
ei();
__delay_us(450);
return ret;
}
/*
* LcdWaitBF
* Description: This procedure simply loops until the LCD is not busy.
* This clears the RS bit.
*
* Argument: None
* Return: None
*
* Input: LCD's Busy Flag
* Output: None
*
* Operation: Keep on looping and reading the LCD busy flag. Exit when it
* indicates the LCD is not busy.
*
* Revision History:
* Dec. 16, 2012 Nnoduka Eruchalu Initial Revision
*/
void LcdWaitBF(void)
{
unsigned char busy, status=0x00;
LCD_DATA_TRIS = 0xFF; /* when reading a port change it to an input */
CLEAR_RS(); /* prepare to read BF and Address Counter */
SET_RW(); /* and put the LCD in read mode */
do {
SET_E(); /* during reads the E has to be active */
__delay_us(0.5); /* wait tPW for data to become available */
status = LCD_DATA_PORT; /* read in value on data lines */
busy = status & 0x80; /* busy flag is highest status bit */
__delay_us(0.5);
CLEAR_E(); /* pull E low for at least tC-tPW */
__delay_us(1);
} while(busy);
/* put the LCD in write mode */
CLEAR_RW(); /* in write mode when R/W\ is cleared */
LCD_DATA_TRIS = 0x00; /* and the I/O pins are set as outputs */
}
/*
* LcdInit
* Description: This initializes the LCD. This must be called before the LCD can
* be used.
* Thus this function has to be called before calling any other
* LCD-interface functions.
* The LCD is set to the following specifications:
* 8-bit mode, 4-line display, 5x8 font
* cursor INCs, display doesn't shift
* cursor visible, cursor blinking
*
* Argument: None
* Return: None
*
* Input: None
* Output: LCD
*
* Operation:
* Really just follows standard initialization sequence. See sketch below
*
* POWER ON
* |
* | Wait time >40ms
* \|/
* FUNCTION SET (RS = 0, RW=0, DB = 0b0011NFXX) [BF cannot be checked b4 this]
* |
* | Wait time >37us
* \|/
* FUNCTION SET (RS = 0, RW=0, DB = 0b0011NFXX) [BF cannot be checked b4 this]
* |
* | Wait time >37us
* \|/
* DISPLAY ON/OFF control (RS = 0, RW=0, DB = 0b00001DCB)
* |
* | Wait time >37us
* \|/
* DISPLAY Clear (RS=0, RW=0, DB=0b00000001)
* |
* | Wait time >1.52ms
* \|/
* Entry Mode Set (RS=0, RW=0, DB=0b0000001{I/D}S)
* |
* | Wait time >37us
* \|/
* Initialization End
*
* Revision History:
* Dec. 16, 2012 Nnoduka Eruchalu Initial Revision
*/
void LcdInit(void)
{
LCD_DATA_TRIS = 0x00; /* setup LCD IO ports as outputs */
LCD_E_TRIS = 0;
LCD_RW_TRIS = 0;
LCD_RS_TRIS = 0;
LCD_DATA_LAT = 0; /* clear IO lines*/
CLEAR_RS(); CLEAR_RW(); CLEAR_E();
__delay_ms(40);
LCD_DATA_LAT = LCD_FUNC_SET; /* FUNCTION SET, done manually to prevent a */
LCD_STROBE(); /* BF check before next command */
__delay_us(40);
LcdCommand(LCD_FUNC_SET); /* FUNCTION SET, again done manually */
LCD_STROBE();
__delay_us(40);
LcdCommand(LCD_ON); /* DISPLAY ON/OFF control: Turn display on */
__delay_us(40);
LcdCommand(LCD_CLEAR); /* DISPLAY Clear */
__delay_ms(2);
LcdCommand(LCD_ENTRY_MD); /* ENTRY mode set */
GenSpecChars(); /* Now create some special characters */
}
/************************************************************************
* Function: void DRV_TCON_SPI_CommandWrite(uint8_t index, uint16_t value)
*
* Overview: This writes a word to SPI module.
*
* Input: index - The index (or address) of the register to be written.
* value - The value that will be written to the register.
*
* Output: none
*
************************************************************************/
void DRV_TCON_SPI_CommandWrite(uint16_t index, uint16_t value)
{
typedef union
{
uint8_t indexByte[2];
uint16_t indexValue;
} GFX_TCON_INDEX;
TCON_CS_LAT = 0;
// Command
TCON_DC_LAT = 0;
DRV_SPI_Put(spiInitData.channel, ((GFX_TCON_INDEX)index).indexByte[1]);
DRV_SPI_Put(spiInitData.channel, ((GFX_TCON_INDEX)index).indexByte[0]);
TCON_CS_LAT = 1;
__delay_us(10);
TCON_CS_LAT = 0;
// Data
TCON_DC_LAT = 1;
DRV_SPI_Put(spiInitData.channel, ((GFX_TCON_INDEX)value).indexByte[1]);
DRV_SPI_Put(spiInitData.channel, ((GFX_TCON_INDEX)value).indexByte[0]);
TCON_CS_LAT = 1;
__delay_us(10);
}
//common shift register clock to move serial data aalong.
void SRCLK(void)
{
PORTCbits.RC4=1;
__delay_us(100);
PORTCbits.RC4=0;
__delay_us(100);
}
int KEYPAD_Read(void) {
/* Start the scanning process */
/* Set only COL1 to 1 and read each row one by one until finding the pressed key */
PORT_KEYPAD_COL1=1; PORT_KEYPAD_COL2=0;
PORT_KEYPAD_COL3=0; PORT_KEYPAD_COL4=0;
if(PORT_KEYPAD_ROW1) return 1; if(PORT_KEYPAD_ROW2) return 4;
if(PORT_KEYPAD_ROW3) return 7; if(PORT_KEYPAD_ROW4) return 14;
__delay_us(10);
/* Set only COL2 to 1 and read each row one by one until finding the pressed key */
PORT_KEYPAD_COL1=0; PORT_KEYPAD_COL2=1;
PORT_KEYPAD_COL3=0; PORT_KEYPAD_COL4=0;
if(PORT_KEYPAD_ROW1) return 2; if(PORT_KEYPAD_ROW2) return 5;
if(PORT_KEYPAD_ROW3) return 8; if(PORT_KEYPAD_ROW4) return 0;
__delay_us(10);
/* Set only COL3 to 1 and read each row one by one until finding the pressed key */
PORT_KEYPAD_COL1=0; PORT_KEYPAD_COL2=0;
PORT_KEYPAD_COL3=1; PORT_KEYPAD_COL4=0;
if(PORT_KEYPAD_ROW1) return 3; if(PORT_KEYPAD_ROW2) return 6;
if(PORT_KEYPAD_ROW3) return 9; if(PORT_KEYPAD_ROW4) return 15;
__delay_us(10);
/* Set only COL4 to 1 and read each row one by one until finding the pressed key */
PORT_KEYPAD_COL1=0; PORT_KEYPAD_COL2=0;
PORT_KEYPAD_COL3=0; PORT_KEYPAD_COL4=1;
if(PORT_KEYPAD_ROW1) return 10; if(PORT_KEYPAD_ROW2) return 11;
if(PORT_KEYPAD_ROW3) return 12; if(PORT_KEYPAD_ROW4) return 13;
__delay_us(10);
return 0xFF; /* Not pressed condition */
}
//clock to place data from internal latches onto outputs
void OutCLK(void)
{
PORTAbits.RA5=1;
__delay_us(100);
PORTAbits.RA5=0;
__delay_us(100);
}
unsigned char ow_read_byte()
{
unsigned char i;
unsigned char data = 0;
di();
for(i=0;i<8;i++){
data >>= 1;
//TRISBbits.TRISB4 = 0;
ONEWIRE_TRIS = 0;
__delay_us(1);
//TRISBbits.TRISB4 = 1;
ONEWIRE_TRIS = 1;
__delay_us(5);
//if(PORTBbits.RB4 == 1)
if(ONEWIRE_PORT == 1)
data = data | 0x80;
__delay_us(55);
}
ei();
return data;
}
/*******************************************************************************
* LCD_Clear( ) *
* ??????????????????????? *
* ???Display Data RAM(2x40byte)?20H????????????? *
* ????????????? *
*******************************************************************************/
void LCD_Clear(void)
{
command(0x01) ; // Clear Display : ?????20H???????????????col=0,row=0???
__delay_us(1100) ; // LCD???(1.08ms)????????
command(0x02) ; // Return Home : ?????????????
__delay_us(1100) ; // LCD???(1.08ms)????????
LCD_NowPage = 0 ; // ???????????????
}
void pulse() {
E = 0;
__delay_us(5);
E = 1;
__delay_us(5);
E = 0;
delay_10us(10);
}
void i2c_write_bit(int b)
{
PORTCbits.RC2 = b; // data high
__delay_us(i2c_period/2);
PORTCbits.RC1 = 1; // clock high
__delay_us(i2c_period/2);
PORTCbits.RC1 = 0; // clock low
}
void sound(int d, int p){
for (volatile int i=1; i<d; i++){
DEBUG_LED = 1;
for (volatile int z=0; z<p; z++) {__delay_us(1); }
DEBUG_LED = 0;
for (volatile int z=0; z<p; z++) {__delay_us(1); }
}
}
//function to output enable clock pulse to LCD
void lcd_e_clock(void)
{
__delay_us(10);
LCD_E = 0; //create a falling edge for Enable pin of LCD to process data
__delay_us(100);
LCD_E = 1; //pull the Enable pin high again
__delay_us(100);
}
//clock to place data from inputs to internal latches
void InCLK(void)
{
PORTBbits.RB7=0;
__delay_us(100);
SRCLK();
PORTBbits.RB7=1;
__delay_us(100);
}
void LCDInit(uint8_t style)
{
/*****************************************************************
This function Initializes the lcd module
must be called before calling lcd related functions
Arguments:
style = LS_BLINK,LS_ULINE(can be "OR"ed for combination)
LS_BLINK : The cursor is blinking type
LS_ULINE : Cursor is "underline" type else "block" type
LS_NONE : No visible cursor
*****************************************************************/
//After power on Wait for LCD to Initialize
__delay_ms(30);
//Set IO Ports
LCD_DATA_TRIS&=(~(0x0F<<LCD_DATA_POS)); //Output
LCD_E_TRIS=0; //Output
LCD_RS_TRIS=0; //Output
LCD_RW_TRIS=0; //Output
LCD_DATA_PORT&=(~(0x0F<<LCD_DATA_POS));//Clear data port
CLEAR_E();
CLEAR_RW();
CLEAR_RS();
//Set 4-bit mode
__delay_us(0.5); //tAS
SET_E();
LCD_DATA_PORT|=((0b00000010)<<LCD_DATA_POS); //[B] To transfer 0b00100000 i was using LCD_DATA_PORT|=0b00100000
__delay_us(1);
CLEAR_E();
__delay_us(1);
//Wait for LCD to execute the Functionset Command
LCDBusyLoop(); //[B] Forgot this delay
//Now the LCD is in 4-bit mode
LCDCmd(0b00101000); //function set 4-bit,2 line 5x7 dot format
LCDCmd(0b00001100|style); //Display On
/* Custom Char */
LCDCmd(0b01000000);
uint8_t __i;
for(__i=0;__i<sizeof(__cgram);__i++)
LCDData(__cgram[__i]);
}
int i2c_read_bit()
{
PORTCbits.RC1 = 1; // clock high
__delay_us(i2c_period/2);
int b = PORTCbits.RC2;
__delay_us(i2c_period/2);
PORTCbits.RC1 = 0; // clock low
return b;
}
/**
* I2C stop condition
*/
void I2C_Stop() {
I2C_SDA_OUT_SET();
//I2C_SCL_OUT_SET();
I2C_SCL_SET();
__delay_us(20);
I2C_SDA_SET();
__delay_us(20);
}
void writeCommandToLCD(unsigned char Command)
{
LCD_RS = 0; // It is a command
LCD_PORT = Command; // Write value on data bus
LCD_E = 1; // Give a pulse on E pin
__delay_us(E_Delay); // so that LCD can latch the
LCD_E = 0; // data from data bus
__delay_us(E_Delay);
}
void i2c_stop()
{
// clock should already be high
TRISCbits.TRISC2 = 0; // data out
PORTCbits.RC2 = 0; // ensure data low
PORTCbits.RC1 = 1; // clock high
__delay_us(i2c_period/2);
PORTCbits.RC2 = 1; // transition data high
__delay_us(i2c_period/2);
}
void writeDataToLCD(char LCDChar)
{
LCD_RS = 1; // It is data
LCD_PORT = LCDChar; // Write value on data bus
LCD_E = 1; // Give a pulse on E pin
__delay_us(E_Delay); // so that LCD can latch the
LCD_E = 0; // data from data bus
__delay_us(E_Delay);
}
void LCDByte(uint8_t c,uint8_t isdata)
{
//Sends a byte to the LCD in 4bit mode
//cmd=0 for data
//cmd=1 for command
//NOTE: THIS FUNCTION RETURS ONLY WHEN LCD HAS PROCESSED THE COMMAND
uint8_t hn,ln; //Nibbles
uint8_t temp;
hn=c>>4;
ln=(c & 0x0F);
if(isdata==0)
CLEAR_RS();
else
SET_RS();
__delay_us(0.5); //tAS
SET_E();
//Send high nibble
temp=(LCD_DATA_PORT & (~(0X0F<<LCD_DATA_POS)))|((hn<<LCD_DATA_POS));
LCD_DATA_PORT=temp;
__delay_us(1); //tEH
//Now data lines are stable pull E low for transmission
CLEAR_E();
__delay_us(1);
//Send the lower nibble
SET_E();
temp=(LCD_DATA_PORT & (~(0X0F<<LCD_DATA_POS)))|((ln<<LCD_DATA_POS));
LCD_DATA_PORT=temp;
__delay_us(1); //tEH
//SEND
CLEAR_E();
__delay_us(1); //tEL
LCDBusyLoop();
}
int ADC_Read()
{
// Activamos, convertimos y desactivamos el ADC, hay que dar tiempo para que se habilite 30us
ADCON0bits.ADON = 1;
__delay_us(30);
ADCON0bits.GO = 1;
while(ADCON0bits.GO == 1)
__delay_us(10);
ADCON0bits.ADON = 0;
return ADRESHbits.ADRESH;
}
void SetToNext(State_t* NowMotorState,State_t *NextMotorState,State_t*TargetMotorState){
if(TargetMotorState->direction != NowMotorState->direction){
__delay_us(20);
NextMotorState->direction = TargetMotorState->direction;
}
if(TargetMotorState->duty > NowMotorState->duty)
NextMotorState->duty ++;
if(TargetMotorState->duty < NowMotorState->duty)
NextMotorState->duty --;
__delay_us(5);
}
void eusartWriteBit(int b) {
b = b & 0x01;
if (b) {
// Write '1' bit
GP2 = 1;
__delay_us(208); //baud rate = 4800
} else {
GP2 = 0;
__delay_us(208);
}
}
int Leer_Bit(void)
{
int result=0;
Pin_BAJO; // RA4 Baja
__delay_us(6); // 6uS espera
Pin_Entrada; // Libera RA4 para generar la ventana de de tiempo de lectura
__delay_us(6); // Espera para validar la ventana de lectura
result = (int)Pin_Lee; // Lee el bus 1-wire
__delay_us(60); // Espera para completar la ventana de tiempo
return (result); // Retorna el bit
}
int Reset_1wire(void)
{
int result=1;
Pin_BAJO;
__delay_us(500); // El pin RA4 baja al menos 480 uS
Pin_Entrada; // Coloca RA4 como entrada, resit.de 4k7 pone el pin en alto
__delay_us(60);// Entre 15 y 60uS, DS1820 pone el pin en 0
result = (int)Pin_Lee; // Lee el estado del pin
__delay_us(240);// Espera para asegurar el estado del pulso de presencia
return (result);// 0 = DS1820 Encontrado!!!
}
