Change LCD Initialization for Winstar LCD to 8bits
Change LCD Initialization for Winstar LCD to 8bits, thanks Garry and Superdavex Be Noted : a RESTART is MANDATORY after flashing This should fix white screen and scramble screen at startpull/21/merge
Luc
rodzic
f6dfc8aa8a
commit
195076d162
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@ -288,8 +288,12 @@ const long baudrates[] PROGMEM = {9600,14400,19200,28800,38400,56000,57600,76800
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#define LCD_4BIT LCD_CONFIGURATION | 0x00 /**< 4 bits interface */
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#define LCD_2LINE LCD_CONFIGURATION | 0x08 /**< 2 line display */
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#define LCD_1LINE LCD_CONFIGURATION | 0x00 /**< 1 line display */
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//for HD44780 and clones
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#define LCD_5X10 LCD_CONFIGURATION | 0x04 /**< 5 X 10 dots */
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#define LCD_5X7 LCD_CONFIGURATION | 0x00 /**< 5 X 7 dots */
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//for Winstar 1604A
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#define LCD_5X11 LCD_CONFIGURATION | 0x04 /**< 5 X 18 dots */
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#define LCD_5X8 LCD_CONFIGURATION | 0x00 /**< 5 X 8 dots */
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#define LCD_SETCGRAMADDR 0x40
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@ -412,6 +416,10 @@ void initializeLCD()
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#endif
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#if UI_DISPLAY_TYPE == DISPLAY_4BIT || UI_DISPLAY_TYPE == DISPLAY_8BIT
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#if UI_DISPLAY_TYPE == DISPLAY_4BIT
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#define BIT_INTERFACE LCD_4BIT
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void lcdWriteNibble(uint8_t value)
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{
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WRITE(UI_DISPLAY_D4_PIN,value & 1);
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@ -419,10 +427,9 @@ void lcdWriteNibble(uint8_t value)
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WRITE(UI_DISPLAY_D6_PIN,value & 4);
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WRITE(UI_DISPLAY_D7_PIN,value & 8);
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WRITE(UI_DISPLAY_ENABLE_PIN, HIGH);// enable pulse must be >450ns
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DELAY1MICROSECOND;
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HAL::delayMicroseconds(5);
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WRITE(UI_DISPLAY_ENABLE_PIN, LOW);
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DELAY1MICROSECOND;
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HAL::delayMicroseconds(15); //tc must be >1200ns
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}
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void lcdWriteByte(uint8_t c,uint8_t rs)
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@ -443,13 +450,13 @@ void lcdWriteByte(uint8_t c,uint8_t rs)
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DELAY1MICROSECOND;
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busy = READ(UI_DISPLAY_D7_PIN);
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WRITE(UI_DISPLAY_ENABLE_PIN, LOW);
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DELAY1MICROSECOND;
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HAL::delayMicroseconds(5);
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WRITE(UI_DISPLAY_ENABLE_PIN, HIGH);
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DELAY1MICROSECOND;
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HAL::delayMicroseconds(5);
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WRITE(UI_DISPLAY_ENABLE_PIN, LOW);
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DELAY1MICROSECOND;
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HAL::delayMicroseconds(5);
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}
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while (busy);
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@ -460,34 +467,96 @@ void lcdWriteByte(uint8_t c,uint8_t rs)
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WRITE(UI_DISPLAY_RW_PIN, LOW);
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#endif
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WRITE(UI_DISPLAY_RS_PIN, rs);
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HAL::delayMicroseconds(5);
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WRITE(UI_DISPLAY_D4_PIN, c & 0x10);
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WRITE(UI_DISPLAY_D5_PIN, c & 0x20);
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WRITE(UI_DISPLAY_D6_PIN, c & 0x40);
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WRITE(UI_DISPLAY_D7_PIN, c & 0x80);
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WRITE(UI_DISPLAY_ENABLE_PIN, HIGH); // enable pulse must be >450ns
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DELAY1MICROSECOND;
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HAL::delayMicroseconds(5);
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WRITE(UI_DISPLAY_ENABLE_PIN, LOW);
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DELAY1MICROSECOND;
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HAL::delayMicroseconds(5);//tc must be >1200ns
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WRITE(UI_DISPLAY_D4_PIN, c & 0x01);
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WRITE(UI_DISPLAY_D5_PIN, c & 0x02);
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WRITE(UI_DISPLAY_D6_PIN, c & 0x04);
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WRITE(UI_DISPLAY_D7_PIN, c & 0x08);
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WRITE(UI_DISPLAY_ENABLE_PIN, HIGH); // enable pulse must be >450ns
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DELAY1MICROSECOND;
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HAL::delayMicroseconds(5);
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WRITE(UI_DISPLAY_ENABLE_PIN, LOW);
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DELAY1MICROSECOND;
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HAL::delayMicroseconds(5);//tc must be >1200ns
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}
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#else //DISPLAY_8BIT
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#define BIT_INTERFACE LCD_8BIT
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void lcdWriteByte(uint8_t c,uint8_t rs)
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{
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#if UI_DISPLAY_RW_PIN<0
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HAL::delayMicroseconds(UI_DELAYPERCHAR);
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#else
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SET_INPUT(UI_DISPLAY_D4_PIN);
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SET_INPUT(UI_DISPLAY_D5_PIN);
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SET_INPUT(UI_DISPLAY_D6_PIN);
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SET_INPUT(UI_DISPLAY_D7_PIN);
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WRITE(UI_DISPLAY_RW_PIN, HIGH);
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WRITE(UI_DISPLAY_RS_PIN, LOW);
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uint8_t busy;
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do
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{
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WRITE(UI_DISPLAY_ENABLE_PIN, HIGH);
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DELAY1MICROSECOND;
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busy = READ(UI_DISPLAY_D7_PIN);
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WRITE(UI_DISPLAY_ENABLE_PIN, LOW);
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HAL::delayMicroseconds(5);
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WRITE(UI_DISPLAY_ENABLE_PIN, HIGH);
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HAL::delayMicroseconds(5);
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WRITE(UI_DISPLAY_ENABLE_PIN, LOW);
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HAL::delayMicroseconds(5);
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}
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while (busy);
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SET_OUTPUT(UI_DISPLAY_D4_PIN);
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SET_OUTPUT(UI_DISPLAY_D5_PIN);
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SET_OUTPUT(UI_DISPLAY_D6_PIN);
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SET_OUTPUT(UI_DISPLAY_D7_PIN);
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WRITE(UI_DISPLAY_RW_PIN, LOW);
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#endif
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WRITE(UI_DISPLAY_RS_PIN, rs);
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HAL::delayMicroseconds(5);
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WRITE(UI_DISPLAY_D0_PIN, c & 0x01);
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WRITE(UI_DISPLAY_D1_PIN, c & 0x02);
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WRITE(UI_DISPLAY_D2_PIN, c & 0x04);
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WRITE(UI_DISPLAY_D3_PIN, c & 0x08);
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WRITE(UI_DISPLAY_D4_PIN, c & 0x10);
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WRITE(UI_DISPLAY_D5_PIN, c & 0x20);
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WRITE(UI_DISPLAY_D6_PIN, c & 0x40);
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WRITE(UI_DISPLAY_D7_PIN, c & 0x80);
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WRITE(UI_DISPLAY_ENABLE_PIN, HIGH); // enable pulse must be >450ns
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HAL::delayMicroseconds(5);
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WRITE(UI_DISPLAY_ENABLE_PIN, LOW); //tc must be >1200ns
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HAL::delayMicroseconds(5);
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}
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#endif
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void initializeLCD()
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{
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playsound(5000,240);
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playsound(3000,240);
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// SEE PAGE 45/46 FOR INITIALIZATION SPECIFICATION!
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// according to datasheet, we need at least 40ms after power rises above 2.7V
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playsound(3000,120);
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#if UI_DISPLAY_TYPE == DISPLAY_8BIT
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playsound(5000,120);
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SET_OUTPUT(UI_DISPLAY_D0_PIN);
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SET_OUTPUT(UI_DISPLAY_D1_PIN);
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SET_OUTPUT(UI_DISPLAY_D2_PIN);
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SET_OUTPUT(UI_DISPLAY_D3_PIN);
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#endif
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// SEE PAGE 45/46 FOR INITIALIZATION SPECIFICATION!
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// according to HD44780 datasheet, we need at least 40ms after power rises above 2.7V
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// before sending commands. Arduino can turn on way before 4.5V.
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// is this delay long enough for all cases??
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HAL::delayMilliseconds(500);
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@ -496,56 +565,51 @@ void initializeLCD()
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SET_OUTPUT(UI_DISPLAY_D6_PIN);
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SET_OUTPUT(UI_DISPLAY_D7_PIN);
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SET_OUTPUT(UI_DISPLAY_RS_PIN);
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//init pins to a known state
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WRITE(UI_DISPLAY_D0_PIN, HIGH);
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WRITE(UI_DISPLAY_D1_PIN, HIGH);
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WRITE(UI_DISPLAY_D2_PIN, HIGH);
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WRITE(UI_DISPLAY_D3_PIN, HIGH);
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WRITE(UI_DISPLAY_D4_PIN, HIGH);
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WRITE(UI_DISPLAY_D5_PIN, HIGH);
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WRITE(UI_DISPLAY_D6_PIN, HIGH);
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WRITE(UI_DISPLAY_D7_PIN, HIGH);
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#if UI_DISPLAY_RW_PIN>-1
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SET_OUTPUT(UI_DISPLAY_RW_PIN);
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#endif
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SET_OUTPUT(UI_DISPLAY_ENABLE_PIN);
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// Now we pull both RS and R/W low to begin commands
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WRITE(UI_DISPLAY_RS_PIN, LOW);
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HAL::delayMicroseconds(5);
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//move set output late to be sure pin is not affected before
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SET_OUTPUT(UI_DISPLAY_ENABLE_PIN);
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HAL::delayMicroseconds(5);
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WRITE(UI_DISPLAY_ENABLE_PIN, LOW);
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//put the LCD into 4 bit mode
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// this is according to the hitachi HD44780 datasheet
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// figure 24, pg 46
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// we start in 8bit mode, try to set 4 bit mode
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// at this point we are in 8 bit mode but of course in this
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// interface 4 pins are dangling unconnected and the values
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// on them don't matter for these instructions.
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WRITE(UI_DISPLAY_RS_PIN, LOW);
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HAL::delayMicroseconds(10);
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lcdWriteNibble(0x03);
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HAL::delayMicroseconds(5500); // I have one LCD for which 4500 here was not long enough.
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// second try
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lcdWriteNibble(0x03);
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HAL::delayMicroseconds(150); // wait
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// third go!
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lcdWriteNibble(0x03);
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HAL::delayMicroseconds(150);
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// finally, set to 4-bit interface
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lcdWriteNibble(0x02);
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HAL::delayMilliseconds(10); // Just to be safe
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//initialization sequence for 4bits/8bits of Winstar 1604A Screen
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//16 rows, 4 lines
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#if UI_DISPLAY_TYPE == DISPLAY_4BIT
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lcdWriteNibble(0x03);//Init Function Set for 4bits
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HAL::delayMicroseconds(150); //more than 39micro seconds
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#endif
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lcdCommand( BIT_INTERFACE | LCD_2LINE | LCD_5X11); //LCD Configuration: Bits, Lines and Font
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HAL::delayMicroseconds(150); //more than 39micro seconds
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lcdCommand(BIT_INTERFACE | LCD_2LINE | LCD_5X8);//LCD Configuration: Bits, Lines and Font
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HAL::delayMicroseconds(150); //more than 39micro seconds
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lcdCommand( LCD_DISPLAYON | LCD_CURSOROFF | LCD_BLINKINGOFF); //Display Control : Display on/off, Cursor, Blinking Cursor
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HAL::delayMicroseconds(150);
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lcdCommand(LCD_DISPLAYOFF);
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HAL::delayMicroseconds(120);
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lcdCommand(LCD_CLEAR); //Clear Screen
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HAL::delayMilliseconds(8); // clear is slow operation more than 1.53ms
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lcdCommand(LCD_CLEAR); //- Clear Screen
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HAL::delayMilliseconds(10); // clear is slow operation
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// finally, set # lines, font size, etc.
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lcdCommand(LCD_4BIT | LCD_2LINE | LCD_5X7);
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HAL::delayMicroseconds(120);
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lcdCommand(LCD_DISPLAYON | LCD_CURSOROFF | LCD_BLINKINGOFF); //- Display on
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lcdCommand(LCD_INCREASE | LCD_DISPLAYSHIFTOFF); //Entrymode: Sets cursor move direction (I/D); specifies to shift the display
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HAL::delayMicroseconds(150);
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lcdCommand(LCD_INCREASE | LCD_DISPLAYSHIFTOFF); //- Entrymode (Display Shift: off, Increment Address Counter)
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HAL::delayMicroseconds(150);
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lcdCommand(LCD_CLEAR); //- Clear Screen
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HAL::delayMilliseconds(10); // clear is slow operation
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HAL::delayMilliseconds(10);//no recommendation so just a feeling
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uid.lastSwitch = uid.lastRefresh = HAL::timeInMilliseconds();
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uid.createChar(1,character_back);
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@ -2220,7 +2284,7 @@ void UIDisplay::refreshPage()
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printRow(y,cache[y] + UI_COLS - scroll,&displayCache[y][off[y]],scroll);
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}
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}
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#if DISPLAY_TYPE != 5
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#if UI_DISPLAY_TYPE != 5
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HAL::delayMilliseconds(transition<3 ? 200 : 70);
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#endif
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HAL::pingWatchdog();
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@ -105,7 +105,7 @@ What display type do you use?
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If you have Sanguino and want to use the library, you need to have Arduino 023 or older. (13.04.2012)
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5 = U8G supported display
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*/
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#define UI_DISPLAY_TYPE 1
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#define UI_DISPLAY_TYPE DISPLAY_8BIT
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#if UI_DISPLAY_TYPE == DISPLAY_U8G // Special case for graphic displays
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