void lcd_init(void)
{
CTRL_PORT_DIR = 0x00; /* Direction of control port as Output */
DATA_PORT_DIR = 0x00; /* Direction of data port as Output */
LCD_cmd(0x38); /* LCD command - 5x7 matrix */
LCD_cmd(0x80); /* LCD command - Force cursor to the bigining of first line */
LCD_cmd(0x0C); /* LCD command - Display ON, cursor OFF */
LCD_cmd(0x01); /* LCD command - Clear display */
}
void LCD_init(void){
TRISD=0x00;
TRISB=0x00;
LCD_cmd(MODE_8BIT); // 2 Line, 5x7 display, 8 bit
LCD_cmd(CLRSCR); // clear the screen
LCD_cmd(CURSOR_INC); // Cursor Incremetns on each write
LCD_cmd(DISPLAY_ON | CURSOR_OFF); // Display on and Cursor Off
return;
}
void LCD_init(void){
TRISD=0x00;
TRISC=0x00;
LCD_cmd(0x38); // 2 Line 5x7 display
LCD_cmd(0x01); // clear display
LCD_cmd(0x06); // Entry mode
LCD_cmd(0x0F); // Display on Cursor blinking
return;
}
void dis_cmd(unsigned char cmd)
{
char cmd1;
cmd1=cmd&0xF0; //takes higher nibble to send to LCD for 4 bit mode
LCD_cmd(cmd1);
cmd1=(cmd<<4)&0xF0; //takes lower nibble to send to LCd
LCD_cmd(cmd1);
}
/**
* @brief Set cursor using a string.
*/
static int set_cursor(const char *carg)
{
if (!strcasecmp(carg, "Blink")) {
return LCD_cmd(DISPLAY_SET | DISPLAY_ON | CURSOR_BLINK_ON);
} else if (!strcasecmp(carg, "On")) {
return LCD_cmd(DISPLAY_SET | DISPLAY_ON | CURSOR_ON);
} else if (!strcasecmp(carg, "Off")) {
return 0;
} else {
fprintf(stderr, "set_cursor error: Invalid option.\n");
}
return 3;
}
void init_LCD(void)
{
LCD_cmd(0x38); // initialization of 16X1 LCD in 8bit mode
_delay_ms(1);
LCD_cmd(0x01); // clear LCD
_delay_ms(1);
LCD_cmd(0x0E); // cursor ON
_delay_ms(1);
LCD_cmd(0x80); // ---8 go to first line and --0 is for 0th position
_delay_ms(1);
return;
}
void set_DDRAM_address(unsigned char address) // Sets the DDRAM address. DDRAM data is sent or received after this setting.
{
unsigned char display_address = (1<<7) | address; // formula for calculating the command byte
// this command is to set the cursor on the inputted address
LCD_cmd(display_address);
}
void Move_Right(unsigned char n)
{
unsigned char i;
for(i=0;i<n;i++)
{
LCD_cmd(0x1c); /* LCD command - Shift entire display to the Right */
delay_ms(200);
}
}
/**
* @brief set CGRAM address
* @param[in] n custom character number, must be no bigger than 7.
* @return 0, if successful
*/
static int CGRAM_set_addr(int n)
{
if (n > 7) {
fprintf(stderr, "CGRAM_set_addr error: invalid address.");
return -1;
}
uint8_t cmd = CGRAM | (n << 3);
return LCD_cmd(cmd);
}
void Move_Left(unsigned char n)
{
unsigned char i=0;
while(i!=n)
{
LCD_cmd(0x18); /* LCD command for moving entire display to the left */
delay_ms(200); /* Milli seconds delay function call */
i++;
}
}
void Write_TIME_LCD(char *str)
{ unsigned char i=0;
LCD_cmd(0x80); /* LCD command - Force cursor to the bigining of first line */
while(i!=16)
{
LCD_data(*str); /* Passing address of a string to LCD data display function */
str++; /* String variable address increment */
i++;
}
str++; /* String variable address increment */
i=17;
LCD_cmd(0xC0); /* Force cursor to the bigining of the 2nd line */
while(i!=32)
{
LCD_data(*str); /* Passing address of a string to LCD data display function */
str++; /* String variable address increment */
i++;
}
}
void Init()
{
//-------Oscillator Configuration
OSCCON=0b01100000;
OSCTUNE.PLLEN=1;
//-------AD Configuration
ANCON0=0;
ANCON1=0;
//-------Port Configuration
porta=0;
portb=0;
portc=0;
portd=0;
porte=0;
trisa=0b11010111;
trisb=0b11000000;
trisc=0b10111101;
trisd=0b01110000;
trise=0b1111;
//------TMR0
T0CON=0b10000001; //prescaler 4
TMR0H=0x63;
TMR0L=0xBF;
INTCON.b7=1;
INTCON.T0IE=1;
//------LCD Init
LCD_Init();
//LCDSystem_Init(&LCD);
LCD_cmd(_LCD_CURSOR_OFF);
delay_ms(500);
LCDBL=1;
//-------UART
UART1_Init(9600);
//UART2_Init(9600);
RC1IF_bit=0;
RC1IE_bit=1;
RC1IP_bit=1;
PEIE_bit=1;
UART_Set_Active(&UART1_Read, &UART1_Write, &UART1_Data_Ready, &UART1_Tx_Idle);
//-------Signaling System
SignalingSystem_Init(&SigSys);
//-------Door Status
DoorStatus=DOORSTATUS_Close;
//-------LoadConfigs
LoadConfig();
//-------RS485
RS485Slave_Init(NetworkAddress);
}
/**
* @brief restore DDRAM address
* @return 0, if successful; -1, if failed
*/
static int DDRAM_addr_restore()
{
uint8_t old_DDRAM_addr = g_DDRAM_addr;
LCD_cmd(DDRAM | g_DDRAM_addr);
if (old_DDRAM_addr == g_DDRAM_addr) {
return 0;
}
fprintf(stderr,
"LL_DDRAM_addr_restore error: could not restore DDRAM address");
return -1;
}
void Entry_mode_set(unsigned char I_D, unsigned char S) // Sets cursor move direction (I/D), specifies to shift the display (S). These operations are performed during data read/write.
{
/*
I_D should be either 0 or 1
0 - Decrement Position Cursor
1 - Incrememt Position Cursor
*/
/*
S is to decide Shift
0 - No Display Shift
1 - Display Shift
*/
unsigned char entry = (1<<2) | (1<<I_D) | (S); // formula to generate command byte
LCD_cmd(entry);
}
void cursor_display_shift(unsigned char SC, unsigned char RL)
{
/*
SC RL
0 0 Shifts the cursor position to the left
(Address Counter is decremented by 1)
0 1 Shifts the cursor position to the right
(Address Counter is incremented by 1)
1 0 Shifts the entire display to the left
The cursor follows the display shift
1 1 Shifts the entire display to the right
The cursor follows the display shift
*/
unsigned char entry = (1<<4) | (SC<<3) | (RL<<2); // formula to generate command byte
LCD_cmd(entry);
}
void display_control(unsigned char D, unsigned char C, unsigned char B) // Sets On/Off of all display (D), cursor On/Off (C) and blink of cursor position character (B).
{
/*
D is Display bit
0 - Display off
1 - Display on
*/
/*
C is cursor bit
0 - Cursor off
1 - Cursor on
*/
/*
B is to set whether the cursor will blink or not
0 - Blink off
1 - Blink on
*/
unsigned char display = (1<<3) | (D<<2) | (C<<1) | (B); // formula to generate command byte
LCD_cmd(display);
}
void function_set(unsigned char DL,unsigned char N,unsigned char F) // Sets interface data length (DL), number of display line (N) and character font(F).
{
/*
DL to decide whether 4-bit display or 8-bit display
0 - 4-bit interface
1 - 8-bit interface
*/
/*
N is to set number of display line
F is for font size
display Character Duty
N F lines Font Factor Remarks
=== ======= ========= ====== =======
0 0 1 5x 7 dots 1/8 -
0 1 1 5x10 dots 1/11 -
1 * 2 5x 7 dots 1/16 Cannot display 2 lines with 5x10 dot character font
*/
// when N = 1 then two lines of display
// when N = 0
unsigned char func = (1<<5) | (DL<<4) | (N<<3) | (F<<2);
LCD_cmd(func);
}
void
main(void)
{
uint8_t ui1;
start_main:
LCD_init();
DELAY(100);
LCD_cmd(LCD_CMD_CUR_10);
DELAY(100);
LCD_WR_LINE(0, 0, "Hello World 1");
DELAY(100);
FlashWriteByte (0xF000, 0x1);
FlashWriteByte (0xF001, 0x2);
FlashWriteByte (0xF002, 0x3);
FlashWriteByte (0xF003, 0x4);
ui1 = FlashReadByte(0xF000);
LCD_WR("Hello World ");
LCD_wrchar('0'+ui1);
DELAY(10);
ui1 = FlashReadByte(0xF001);
LCD_WR("Hello World ");
LCD_wrchar('0'+ui1);
DELAY(10);
ui1 = FlashReadByte(0xF002);
LCD_WR("Hello World ");
LCD_wrchar('0'+ui1);
DELAY(10);
ui1 = FlashReadByte(0xF003);
LCD_WR("Hello World ");
LCD_wrchar('0'+ui1);
DELAY(10);
goto start_main;
}
void LCD_clear_display() // Clears display and returns cursor to the home position (address 0)
{
LCD_cmd(0x01); // clear
LCD_cmd(0x02); // home
}
void LCD_cursor_home() // Returns cursor to home position (address 0). Also returns display being shifted to the original position. DDRAM contents remains unchanged.
{
LCD_cmd(0x02);
}
void UpdateMenuText()
{
char txt[10];
memcpy(txt," ",10);
LCD_cmd(_LCD_CLEAR);
switch(MenuCounter)
{
case 0:
lcd_out(1,1,"1 Openning Time ");
charValueToStr(OpenningTime,txt);
lcd_out(2,5,txt);
break;
case 1:
lcd_out(1,1,"2 Closing Time ");
charValueToStr(ClosingTime,txt);
lcd_out(2,5,txt);
break;
case 2:
lcd_out(1,1,"3 Invalid Time ");
charValueToStr(InvalidTime,txt);
lcd_out(2,5,txt);
break;
case 3:
lcd_out(1,1,"4 Autoclose Time");
charValueToStr(AutocloseTime,txt);
lcd_out(2,5,txt);
break;
case 4:
lcd_out(1,1,"5 Net Address ");
byteToStr(NetworkAddress,txt);
lcd_out(2,5,txt);
break;
case 5:
lcd_out(1,1,"6 Working Mode ");
if(WorkingMode==0)
lcd_out(2,1," Start/Stop ");
else
lcd_out(2,1," Open/Close ");
break;
case 6:
lcd_out(1,1,"7 IR in Mode ");
if(IRMode==0)
lcd_out(2,1," NO ");
else
lcd_out(2,1," NC ");
break;
case 7:
lcd_out(1,1,"8 Car Pass Time ");
charValueToStr(CarPassTime,txt);
lcd_out(2,5,txt);
break;
case 8:
lcd_out(1,1,"9 Save Changes ");
lcd_out(2,1,_Blank);
break;
case 9:
lcd_out(1,1,"10 Discard Exit ");
lcd_out(2,1,_Blank);
break;
}
}
