void LCDdogmSPI::init() {
char clr;
char linesreg;
pinMode(SPI_MOSI_PIN, OUTPUT);
pinMode(SPI_CLK_PIN,OUTPUT);
pinMode(cs_pin,OUTPUT);
pinMode(rs_pin,OUTPUT);
SPCR = (1<<SPE)|(1<<MSTR)|(1<<SPR1);
clr=SPSR;
clr=SPDR;
delay(50);
linesreg = (lines == 2) ? 8 : 0;
commandWrite(LCDCMD_FUN_REG_2 | linesreg); //function set
delay(1);
commandWrite(LCDCMD_FUN_REG_2 | linesreg); //function set
delay(1);
commandWrite(LCDCMD_BIAS_SET);
commandWrite(LCDCMD_POWER_CTL);
commandWrite(LCDCMD_FOLLOWER_CTL);
commandWrite(LCDCMD_CONTRAST_SET);
commandWrite(LCDCMD_ON);
commandWrite(LCDCMD_CLR);
commandWrite(LCDCMD_ENTRY_MODE_SET);
commandWrite(LCDCMD_HOME);
}
//send the clear screen command to the LCD
static void clear(){
commandWrite(CMD_CLR);
_delay_ms(2);
if(EMPTY_FIRST_COL)
commandWrite(0x14);
cursor_pos=EMPTY_FIRST_COL;
}
// Write char into CGRAM memory
void LCD4Bit_mod::buildChar(uint8_t loc, const uint8_t charmap[]) {
// we only have 8 locations: 0-7
commandWrite(0x40 + ((loc&0x7) << 3));
for(uint8_t i=0; i<8; ++i)
print(charmap[i]);
commandWrite(CMD_SETDDRAM);
}
// initiatize lcd after a short pause
//while there are hard-coded details here of lines, cursor and blink settings, you can override these original settings after calling .init()
void LCD4Bit_mod::begin ()
{
pinMode(Enable,OUTPUT);
pinMode(RS,OUTPUT);
if (USING_RW) { pinMode(RW,OUTPUT); }
pinMode(DB[0],OUTPUT);
pinMode(DB[1],OUTPUT);
pinMode(DB[2],OUTPUT);
pinMode(DB[3],OUTPUT);
delay(50);
//The first 4 nibbles and timings are not in my DEM16217 SYH datasheet, but apparently are HD44780 standard...
commandWriteNibble(0x03);
delay(5);
commandWriteNibble(0x03);
delayMicroseconds(100);
commandWriteNibble(0x03);
delay(5);
// needed by the LCDs controller
//this being 2 sets up 4-bit mode.
commandWriteNibble(0x02);
commandWriteNibble(0x02);
//todo: make configurable by the user of this library.
//NFXX where
//N = num lines (0=1 line or 1=2 lines).
//F= format (number of dots (0=5x7 or 1=5x10)).
//X=don't care
byte num_lines_ptn = (num_lines - 1) << 3;
byte dot_format_ptn = 0x00; //5x7 dots. 0x04 is 5x10
commandWriteNibble(num_lines_ptn | dot_format_ptn);
delayMicroseconds(60);
//The rest of the init is not specific to 4-bit mode.
//NOTE: we're writing full bytes now, not nibbles.
// display control:
// turn display on, cursor off, no blinking
commandWrite(0x0C);
delayMicroseconds(60);
//clear display
commandWrite(0x01);
delay(3);
// entry mode set: 06
// increment automatically, display shift, entire shift off
commandWrite(0x06);
delay(1);//TODO: remove unnecessary delays
}
//non-core stuff --------------------------------------
//move the cursor to the given absolute position. line numbers start at 1.
//if this is not a 2-line LCD4Bit_mod instance, will always position on first line.
void LCD4Bit_mod::setCursor(byte x, byte line)
{
//first, put cursor home
commandWrite(CMD_HOME);
//offset 40 chars in if second line requested
x += line * 40;
//advance the cursor to the right according to position. (second line starts at position 40).
for (byte i=0; i<x; i++) {
commandWrite(0x14);
}
}
// initialize LCD after a short pause
//while there are hard-coded details here of lines, cursor and blink settings, you can override these original settings after calling .init()
void LCD4Bit_mod::init() {
// Configure pins as outputs
setbits(CONTROL_DDR, CONTROL_EN | CONTROL_RS);
#ifdef USING_RW
setbits(CONTROL_DDR, CONTROL_RW);
#endif
setbits(DATA_DDR, DATA_PINS);
delay(50);
//The first 4 nibbles and timings are not in my DEM16217 SYH datasheet, but apparently are HD44780 standard...
commandWriteNibble(0x03);
delay(5);
commandWriteNibble(0x03);
delayMicroseconds(100);
commandWriteNibble(0x03);
delay(5);
// needed by the LCDs controller
//this being 2 sets up 4-bit mode.
commandWriteNibble(0x02);
commandWriteNibble(0x02);
//todo: make configurable by the user of this library.
//NFXX where
//N = num lines (0=1 line or 1=2 lines).
//F= format (number of dots (0=5x7 or 1=5x10)).
//X=don't care
uint8_t num_lines_ptn = g_num_lines - 1 << 3;
uint8_t dot_format_ptn = 0x00; //5x7 dots. 0x04 is 5x10
commandWriteNibble(num_lines_ptn | dot_format_ptn);
delayMicroseconds(60);
//The rest of the init is not specific to 4-bit mode.
//NOTE: we're writing full bytes now, not nibbles.
// display control:
// turn display on, cursor off, no blinking
//
commandWrite(CMD_DISPLAY | CMD_DISPLAY_DISPLAY_ON/*0x0C*/);
delayMicroseconds(60);
//clear display
commandWrite(CMD_CLEAR);
delay(3);
// entry mode set: 06
// increment automatically, display shift, entire shift off
commandWrite(0x06);
delay(1);//TODO: remove unnecessary delays
}
//scroll whole display to left
void LCD4Bit_mod::leftScroll(byte num_chars, unsigned int delay_time)
{
for (byte i=0; i<num_chars; i++) {
commandWrite(CMD_LEFT);
delay(delay_time);
}
}
//non-core stuff --------------------------------------
//move the cursor to the given absolute position. line numbers start at 1.
//if this is not a 2-line LCD4Bit_mod instance, will always position on first line.
void cursorTo(int line_num, int x){
//if we are on a 1-line display, set line_num to 1st line, regardless of given
//offset 40 chars in if second line requested
x += 0x40*(((g_num_lines>line_num)?line_num:g_num_lines)-1);
commandWrite(CMD_DDADDR(x));
cursor_pos=x;
}
//non-core stuff --------------------------------------
//move the cursor to the given absolute position. line numbers start at 1.
//if this is not a 2-line LCD4Bit_mod instance, will always position on first line.
void LCD4Bit_mod::cursorTo(int line_num, int x){
//first, put cursor home
commandWrite(CMD_HOME);
//if we are on a 1-line display, set line_num to 1st line, regardless of given
if (g_num_lines==1){
line_num = 1;
}
//offset 40 chars in if second line requested
if (line_num == 2){
x += 40;
}
//advance the cursor to the right according to position. (second line starts at position 40).
for (int i=0; i<x; i++) {
commandWrite(0x14);
}
}
//scroll whole display to left
void leftScroll(int num_chars, int delay_time){
while (num_chars-- > 0) {
commandWrite(CMD_LEFT);
int i=delay_time;
while (i-- > 0)
_delay_ms(1);
}
}
//non-core stuff --------------------------------------
//move the cursor to the given absolute position. line numbers start at 1.
//if this is not a 2-line LCD4Bit_mod instance, will always position on first line.
void cursorTo(int line_num, int x){
//first, put cursor home
commandWrite(lcd_Home);
//if we are on a 1-line display, set line_num to 1st line, regardless of given
if (g_num_lines==1){
line_num = 1;
}
//offset 40 chars in if second line requested
if (line_num == 2){
x += 40;
}
//advance the cursor to the right according to position. (second line starts at position 40).
while (x-- > 0) {
commandWrite(0x14);
}
}
// Enables LCD, cursor and cursor blinking
void LCD4Bit_mod::setDisplay(bool display, bool cursor, bool blink)
{
byte cmd = CMD_DISPLAY;
if(display) cmd |= CMD_DISPLAY_DISPLAY_ON;
if(cursor) cmd |= CMD_DISPLAY_CURSOR_ON;
if(blink) cmd |= CMD_DISPLAY_BLINK_ON;
commandWrite(cmd);
}
//non-core stuff --------------------------------------
//move the cursor to the given absolute position. line numbers start at 1.
//if this is not a 2-line LCD4Bit_mod instance, will always position on first line.
void LCD4Bit_mod::cursorTo(uint8_t line_num, uint8_t x){
if (g_num_lines==1){
line_num = 1;
}
//offset 40 chars in if second line requested
if (line_num == 2){
x += 0x40;
}
commandWrite(CMD_SETDDRAM | x);
}
void set_char_at(char c, int line_num, int x)
{
uint8_t orig_cursor=cursor_pos;
//move cursor
cursorTo(line_num, x);
//write
dataWrite(c);
//restore cursor
commandWrite(CMD_DDADDR(orig_cursor));
cursor_pos=orig_cursor;
}
void LCDdogmSPI::cursorTo(int line_num, int x) {
char address = 0;
if (line_num > lines) line_num = lines;
if (lines == 1) {
x = x % 8;
} else {
x = x % 16;
}
address = (lines == 3) ? (line_num * 0x10) : (line_num * 0x40);
address += x;
address = address & 0x7F;
commandWrite(LCDCMD_SET_DDRAM_ADDRESS | address);
}
void
LCDI2C4Bit::setCustomCharacter(uint8_t slot, uint8_t bitmask[8])
{
//64 = write CGRAM address
//slot<<3 = 3 bit (8 possible) cust. char. address
commandWrite(64 | (slot << 3));
//write the character to CGRAM
dataPlusMask |= 0x10;
commandWrite(bitmask[0]);
commandWrite(bitmask[1]);
commandWrite(bitmask[2]);
commandWrite(bitmask[3]);
commandWrite(bitmask[4]);
commandWrite(bitmask[5]);
commandWrite(bitmask[6]);
commandWrite(bitmask[7]);
dataPlusMask ^= 0x10;
//set DDRAM address to make sure next write command is to DDRAM instead of CGRAM
//this will trash your cursor position, but prevent you from accidentally overwriting custom characters
commandWrite(128);
}
// initiatize lcd - cursor and blink settings could be overriden after initializing
void init_lcd() {
pinMode(EN_PORT, EN_BIT, OUTPUT);
pinMode(RS_PORT, RS_BIT, OUTPUT);
set_db_pin_mode(OUTPUT);
digitalWrite(EN_PORT, EN_BIT, 0);
_delay_ms(20);
//init (interface still 8-bit)
commandWriteNibble(0x03);
_delay_ms(5);
commandWriteNibble(0x03);
_delay_us(100);
commandWriteNibble(0x03);
_delay_us(100);
// needed by the LCDs controller
//this being 2 sets up 4-bit mode.
commandWriteNibble(0x02);
commandWriteNibble(0x02);
//todo: make configurable by the user of this library.
//NFXX where
//N = num lines (0=1 line or 1=2 lines).
//F= format (number of dots (0=5x7 or 1=5x10)).
//X=don't care
int num_lines_ptn = (g_num_lines - 1) << 3;
int dot_format_ptn = 0x00; //5x7 dots. 0x04 is 5x10
commandWriteNibble(num_lines_ptn | dot_format_ptn);
_delay_us(60);
//The rest of the init is not specific to 4-bit mode.
//NOTE: we're writing full bytes now, not nibbles.
// display control:
// turn display on, cursor off, no blinking
set_display_cursor_blink(0b100);
//clear display
clear();
// entry mode set: 06
// increment automatically, display shift, entire shift off
commandWrite(0x06);
_delay_ms(1);//TODO: remove unnecessary delays
}
void Communications(void * pvParameters){
msg.Payload = msgBuff;
vSemaphoreCreateBinary(DataSmphr);
if (DataSmphr==NULL){
while(1);
}
qUART_Register_RBR_Callback(UART_GROUNDCOMM, UART_Rx_Handler);
qUART_EnableRx(UART_GROUNDCOMM);
comms_trcLabel = xTraceOpenLabel("Comms task");
for (;;){
if (pdTRUE == xSemaphoreTake(DataSmphr,500/portTICK_RATE_MS)){
vTracePrintF(comms_trcLabel,"Got joystick package");
switch (msg.Type){
case MSG_TYPE_CONTROL:
memcpy(&quadrotor.joystick,msg.Payload,10);
case MSG_TYPE_DEBUG:
break;
case MSG_TYPE_SYSTEM:
switch (msg.Payload[0]) {
case COMMAND_READ:
commandRead(&msg.Payload[1]);
break;
case COMMAND_WRITE:
commandWrite(&msg.Payload[1]);
break;
default:
break;
}
break;
default:
break;
}
}else{
// Timeout to get a new joystick commands, values to 0
vTracePrintF(comms_trcLabel,"Joystick package timeout");
memset(&quadrotor.joystick,0,sizeof(quadrotor.joystick));
}
}
}
/*
* function to redirect stdout to lcd by FDEV_SETUP_STREAM() macro
* Sends a character to the LCD display.
* '\n' clears the display after the *next* character
* '\r' sets the cursor address to begin of 2nd line
*/
int lcd_putchar(char c, FILE *unused)
{
static char nl_seen;
if (nl_seen && c != '\n') {
// first character after newline, clear display and home cursor.
clear();
nl_seen = 0;
}
if (c == '\n') {
nl_seen = 1;
}
else if (c != '\r') {
dataWrite(c);
} else {
commandWrite(CMD_DDADDR(64));
}
return 0;
}
//scroll whole display to left
void LCD4Bit_mod::leftScroll(int num_chars, int delay_time){
for (int i=0; i<num_chars; i++) {
commandWrite(CMD_LEFT);
delay(delay_time);
}
}
//scroll whole display to left
void LCD4Bit_mod::leftScroll(uint8_t num_chars, uint8_t delay_time){
for (uint8_t i=0; i<num_chars; ++i) {
commandWrite(CMD_SHIFT | CMD_SHIFT_CURSOR_LEFT);
delay(delay_time);
}
}
void serialEvent()
{
while (Serial.available())
{
char inChar = Serial.read();
switch (comState)
{
case COMSTATE_COM:
command = inChar;
comState = COMSTATE_REG;
break;
case COMSTATE_REG:
reg = inChar;
count = 0;
comState = COMSTATE_COM;
if (command == 'r')
{
commandRead(reg, buffer);
Serial.write(buffer, BURST);
comState = COMSTATE_WAITACK;
}
else if (command == 'w')
{
comState = COMSTATE_WRITE;
}
else
{
// wat
comState = COMSTATE_COM;
}
break;
case COMSTATE_WAITACK:
if (inChar == ACK)
{
// acked
}
else if (inChar == NACK)
{
// nacked
}
else
{
// this is really bad
}
comState = COMSTATE_COM;
break;
case COMSTATE_WRITE:
buffer[count] = inChar;
if (++count == BURST)
{
if (commandWrite(reg, buffer))
Serial.write(ACK);
else
Serial.write(NACK);
comState = COMSTATE_COM;
}
break;
default:
comState = COMSTATE_COM;
break;
}
}
}
// initiatize lcd - cursor and blink settings could be overriden after initializing
void init_lcd() {
//Power-up delay
_delay_ms(100);
pinMode(EN_PORT, EN_BIT, OUTPUT);
pinMode(RS_PORT, RS_BIT, OUTPUT);
#if USING_RW != 0
if (USING_RW) { pinMode(RW_PORT, RW_BIT, OUTPUT); }
#endif
pinMode(DB0_PORT, DB0_BIT,OUTPUT);
pinMode(DB1_PORT, DB1_BIT,OUTPUT);
pinMode(DB2_PORT, DB2_BIT,OUTPUT);
pinMode(DB3_PORT, DB3_BIT,OUTPUT);
digitalWrite(EN_PORT, EN_BIT, 1);
commandWriteNibble(lcd_FunctionReset); // first part of reset sequence
_delay_ms(10);
commandWriteNibble(lcd_FunctionReset); // second part of reset sequence
_delay_us(200);
commandWriteNibble(lcd_FunctionReset); // third part of reset sequence
_delay_us(200); // this delay is omitted in the data sheet
commandWriteNibble(lcd_Home);
_delay_ms(1);
commandWriteNibble(lcd_Home);
_delay_ms(1);
commandWriteNibble(lcd_DisplayOn);
_delay_us(80);
commandWriteNibble(lcd_DisplayOff);
_delay_us(80);
commandWriteNibble(0x00);
_delay_ms(1);
commandWriteNibble(lcd_Clear);
_delay_ms(4);
commandWriteNibble(0x00);
_delay_ms(1);
commandWriteNibble(lcd_EntryMode);
_delay_us(80);
// needed by the LCDs controller
//this being 2 sets up 4-bit mode.
commandWriteNibble(lcd_Home);
commandWriteNibble(lcd_Home);
//todo: make configurable by the user of this library.
//NFXX where
//N = num lines (0=1 line or 1=2 lines).
//F= format (number of dots (0=5x7 or 1=5x10)).
//X=don't care
int num_lines_ptn = (g_num_lines - 1) << 3;
int dot_format_ptn = 0x00; //5x7 dots. 0x04 is 5x10
commandWrite(num_lines_ptn | dot_format_ptn | 0x20);
_delay_us(60);
//The rest of the init is not specific to 4-bit mode.
//NOTE: we're writing full bytes now, not nibbles.
// display control:
// turn display on, cursor off, no blinking
commandWrite(lcd_DisplayOn);
_delay_us(60);
//clear display
commandWrite(lcd_Clear);
_delay_ms(3);
// entry mode set: 06
// increment automatically, display shift, entire shift off
commandWrite(lcd_EntryMode);
_delay_ms(1);//TODO: remove unnecessary delays
}
void ofxInFocusSerial::setLampEco(bool eco) {
commandWrite("IPM", eco ? 1 : 0);
}
void ofxInFocusSerial::setPowerOn(bool on) {
commandWrite("PWR", on ? 1 : 0);
}
void LCD4Bit_mod::clear(){
commandWrite(CMD_CLR);
delay(1);
}
void set_display_cursor_blink(char s)
{
commandWrite(0x08 | (s&0x07));
_delay_us(60);
}
//send the clear screen command to the LCD
static void clear(){
commandWrite(lcd_Clear);
_delay_ms(10);
}
void LCD4Bit::lcdCommandWriteAndPrintIn_P(uint8_t cmd, const char *chars) {
commandWrite (cmd);
printIn_P(chars);
}
//send the clear screen command to the LCD
void LCD4Bit::clear(){
commandWrite(CMD_CLR);
delay(3);
}
