Wim Huiskamp
Updated for more display types. Fixed memoryaddress confusion in address() method. Added new getAddress() method. Added support for UDCs, Backlight control and other features such as control through I2C and SPI port expanders and controllers with native I2C and SPI interfaces. Refactored to fix issue with pins that are default declared as NC.
Dependents: GPSDevice TestTextLCD SD to Flash Data Transfer DrumMachine ... more
Fork of
TextLCD
by 
Simon Ford
Example
Hello World! for the TextLCD
#include "mbed.h"
#include "TextLCD.h"
// Host PC Communication channels
Serial pc(USBTX, USBRX); // tx, rx
// I2C Communication
I2C i2c_lcd(p28,p27); // SDA, SCL
// SPI Communication
SPI spi_lcd(p5, NC, p7); // MOSI, MISO, SCLK
//TextLCD lcd(p15, p16, p17, p18, p19, p20); // RS, E, D4-D7, LCDType=LCD16x2, BL=NC, E2=NC, LCDTCtrl=HD44780
//TextLCD_SPI lcd(&spi_lcd, p8, TextLCD::LCD40x4); // SPI bus, 74595 expander, CS pin, LCD Type
TextLCD_I2C lcd(&i2c_lcd, 0x42, TextLCD::LCD20x4); // I2C bus, PCF8574 Slaveaddress, LCD Type
//TextLCD_I2C lcd(&i2c_lcd, 0x42, TextLCD::LCD16x2, TextLCD::WS0010); // I2C bus, PCF8574 Slaveaddress, LCD Type, Device Type
//TextLCD_SPI_N lcd(&spi_lcd, p8, p9); // SPI bus, CS pin, RS pin, LCDType=LCD16x2, BL=NC, LCDTCtrl=ST7032_3V3
//TextLCD_I2C_N lcd(&i2c_lcd, ST7032_SA, TextLCD::LCD16x2, NC, TextLCD::ST7032_3V3); // I2C bus, Slaveaddress, LCD Type, BL=NC, LCDTCtrl=ST7032_3V3
int main() {
pc.printf("LCD Test. Columns=%d, Rows=%d\n\r", lcd.columns(), lcd.rows());
for (int row=0; row<lcd.rows(); row++) {
int col=0;
pc.printf("MemAddr(Col=%d, Row=%d)=0x%02X\n\r", col, row, lcd.getAddress(col, row));
// lcd.putc('-');
lcd.putc('0' + row);
for (col=1; col<lcd.columns()-1; col++) {
lcd.putc('*');
}
pc.printf("MemAddr(Col=%d, Row=%d)=0x%02X\n\r", col, row, lcd.getAddress(col, row));
lcd.putc('+');
}
// Show cursor as blinking character
lcd.setCursor(TextLCD::CurOff_BlkOn);
// Set and show user defined characters. A maximum of 8 UDCs are supported by the HD44780.
// They are defined by a 5x7 bitpattern.
lcd.setUDC(0, (char *) udc_0); // Show |>
lcd.putc(0);
lcd.setUDC(1, (char *) udc_1); // Show <|
lcd.putc(1);
}
Handbook page
More info is here
Diff: TextLCD.h
- Revision:
- 32:59c4b8f648d4
- Parent:
- 31:ef31cd8a00d1
- Child:
- 33:900a94bc7585
--- a/TextLCD.h Sun Jun 29 14:55:50 2014 +0000
+++ b/TextLCD.h Fri Aug 22 19:50:49 2014 +0000
@@ -11,6 +11,7 @@
* 2014, v09: WH/EO, Added Class for Native SPI controllers such as ST7032
* 2014, v10: WH, Added Class for Native I2C controllers such as ST7032i, Added support for MCP23008 I2C portexpander, Added support for Adafruit module
* 2014, v11: WH, Added support for native I2C controllers such as PCF21XX, Improved the _initCtrl() method to deal with differences between all supported controllers
+ * 2014, v12: WH, Added support for native I2C controller PCF2119 and native I2C/SPI controllers SSD1803, ST7036, added setContrast method (by JH1PJL) for supported devices (eg ST7032i)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@@ -38,7 +39,7 @@
/** A TextLCD interface for driving 4-bit HD44780-based LCDs
*
- * Currently supports 8x1, 8x2, 12x3, 12x4, 16x1, 16x2, 16x4, 20x2, 20x4, 24x1, 24x2, 24x4, 40x2 and 40x4 panels
+ * Currently supports 8x1, 8x2, 12x3, 12x4, 16x1, 16x2, 16x3, 16x4, 20x2, 20x4, 24x1, 24x2, 24x4, 40x2 and 40x4 panels
* Interface options include direct mbed pins, I2C portexpander (PCF8474/PCF8574A or MCP23008) or SPI bus shiftregister (74595).
* Supports some controllers with native I2C or SP interface. Supports some controllers that provide internal DC/DC converters for VLCD or VLED.
*
@@ -204,9 +205,15 @@
#define OLAT 0x0A
-/* ST7032I I2C slave address */
+/* ST7032i I2C slave address */
#define ST7032_SA 0x7C
+/* ST7036i I2C slave address */
+#define ST7036_SA0 0x78
+#define ST7036_SA1 0x7A
+#define ST7036_SA2 0x7C
+#define ST7036_SA3 0x7E
+
/* PCF21XX I2C slave address */
#define PCF21XX_SA0 0x74
#define PCF21XX_SA1 0x76
@@ -214,10 +221,24 @@
/* AIP31068 I2C slave address */
#define AIP31068_SA 0x7C
+/* SSD1803 I2C slave address */
+#define SSD1803_SA0 0x78
+#define SSD1803_SA1 0x7A
+
+/* US2066 I2C slave address */
+#define US2066_SA0 0x78
+#define US2066_SA1 0x7A
+
+
+//Some native I2C controllers dont support ACK. Set define to '0' to allow code to proceed even without ACK
+//#define LCD_I2C_ACK 0
+#define LCD_I2C_ACK 1
+
/* LCD Type information on Rows, Columns and Variant. This information is encoded in
* an int and used for the LCDType enumerators in order to simplify code maintenance */
// Columns encoded in b7..b0
#define LCD_T_COL_MSK 0x000000FF
+#define LCD_T_C6 0x00000006
#define LCD_T_C8 0x00000008
#define LCD_T_C10 0x0000000A
#define LCD_T_C12 0x0000000C
@@ -236,37 +257,82 @@
// Addressing mode encoded in b19..b16
#define LCD_T_ADR_MSK 0x000F0000
-#define LCD_T_A 0x00000000 /*Mode A (Default), 1, 2 or 4 line display */
-#define LCD_T_B 0x00010000 /*Mode B, Alternate 8x2 (actually 16x1 display) */
-#define LCD_T_C 0x00020000 /*Mode C, Alternate 16x1 (actually 8x2 display) */
-#define LCD_T_D 0x00030000 /*Mode D, Alternate 3 or 4 line display (12x4, 24x4) */
-#define LCD_T_D1 0x00040000 /*Mode D1, Alternate 3 or 4 line display (12x4, 24x4) */
-#define LCD_T_E 0x00050000 /*Mode E, 4x40 display (actually two 40x2) */
+#define LCD_T_A 0x00000000 /*Mode A Default 1, 2 or 4 line display */
+#define LCD_T_B 0x00010000 /*Mode B, Alternate 8x2 (actually 16x1 display) */
+#define LCD_T_C 0x00020000 /*Mode C, Alternate 16x1 (actually 8x2 display) */
+#define LCD_T_D 0x00030000 /*Mode D, Alternate 3 or 4 line display (12x4, 20x4, 24x4) */
+#define LCD_T_D1 0x00040000 /*Mode D1, Alternate 3 out of 4 line display (12x3, 20x3, 24x3) */
+#define LCD_T_E 0x00050000 /*Mode E, 40x4 display (actually two 40x2) */
+#define LCD_T_F 0x00060000 /*Mode F, 16x3 display (actually 24x2) */
+#define LCD_T_G 0x00070000 /*Mode G, 16x3 display */
/* LCD Ctrl information on interface support and features. This information is encoded in
* an int and used for the LCDCtrl enumerators in order to simplify code maintenance */
// Interface encoded in b31..b24
#define LCD_C_BUS_MSK 0xFF000000
-#define LCD_C_PAR 0x01000000 /*Parallel 4 or 8 bit data, E pin */
+#define LCD_C_PAR 0x01000000 /*Parallel 4 or 8 bit data, E pin, RS pin, RW=GND */
#define LCD_C_SPI3_9 0x02000000 /*SPI 3 line (MOSI, SCL, CS pins), 9 bits (RS + 8 Data) */
#define LCD_C_SPI3_10 0x04000000 /*SPI 3 line (MOSI, SCL, CS pins), 10 bits (RS, RW + 8 Data) */
-#define LCD_C_SPI4 0x08000000 /*SPI 4 line (MOSI, SCL, CS, RS pin) */
-#define LCD_C_I2C 0x10000000 /*I2C (SDA, SCL pin) */
+#define LCD_C_SPI3_16 0x08000000 /*SPI 3 line (MOSI, SCL, CS pins), 16 bits (RS, RW + 8 Data) */
+#define LCD_C_SPI3_24 0x10000000 /*SPI 3 line (MOSI, SCL, CS pins), 24 bits (RS, RW + 8 Data) */
+#define LCD_C_SPI4 0x20000000 /*SPI 4 line (MOSI, SCL, CS, RS pin), RS pin + 8 Data */
+#define LCD_C_I2C 0x40000000 /*I2C (SDA, SCL pin), 8 control bits (Co, RS, RW) + 8 Data */
// Features encoded in b23..b16
#define LCD_C_FTR_MSK 0x00FF0000
#define LCD_C_BST 0x00010000 /*Booster */
-#define LCD_C_CTR 0x00010000 /*Contrast Control */
-#define LCD_C_ICN 0x00020000 /*Icons */
+#define LCD_C_CTR 0x00020000 /*Contrast Control */
+#define LCD_C_ICN 0x00040000 /*Icons */
+#define LCD_C_PDN 0x00080000 /*Power Down */
+
+
+// Contrast setting, 5 significant bits (only supported for controllers with extended features)
+// Voltage Multiplier setting, 2 or 3 significant bits (only supported for controllers with extended features)
+#define LCD_DEF_CONTRAST 0x20
+
+//ST7032 EastRising display
+//ST7036 EA DOGM163 display
+//Contrast setting 5 significant bits
+//Voltage Multiplier setting 3 significant bits
+#define LCD_ST7032_CONTRAST 0x18
+#define LCD_ST7032_RAB 0x04
+
+#define LCD_ST7036_CONTRAST 0x28
+#define LCD_ST7036_RAB 0x04
+
+
+//SSD1803 EA DOGM204 display
+//Contrast setting 5 significant bits
+//Voltage Multiplier setting 3 significant bits
+#define LCD_SSD1_CONTRAST 0x28
+#define LCD_SSD1_RAB 0x06
+
+
+//PCF2113, PCF2119 display
+//Contrast setting 5 significant bits
+//Voltage Multiplier setting 2 significant bits
+#define LCD_PCF2_CONTRAST 0x20
+#define LCD_PCF2_S12 0x02
+
+//PT6314 VFD display
+//Contrast setting 2 significant bits
+#define LCD_PT63_CONTRAST 0x00
/** Some sample User Defined Chars 5x7 dots */
-extern const char udc_ae[]; //æ
-extern const char udc_0e[]; //ø
-extern const char udc_ao[]; //å
-extern const char udc_AE[]; //Æ
-extern const char udc_0E[]; //Ø
-extern const char udc_Ao[]; //Å
-extern const char udc_PO[]; //Padlock Open
-extern const char udc_PC[]; //Padlock Closed
+//extern const char udc_ae[]; //æ
+//extern const char udc_0e[]; //ø
+//extern const char udc_ao[]; //å
+//extern const char udc_AE[]; //Æ
+//extern const char udc_0E[]; //Ø
+//extern const char udc_Ao[]; //Å
+//extern const char udc_PO[]; //Padlock Open
+//extern const char udc_PC[]; //Padlock Closed
+
+//extern const char udc_alpha[]; //alpha
+//extern const char udc_ohm[]; //ohm
+//extern const char udc_sigma[]; //sigma
+//extern const char udc_pi[]; //pi
+//extern const char udc_root[]; //root
+
extern const char udc_0[]; // |>
extern const char udc_1[]; // <|
@@ -308,6 +374,8 @@
//extern const char udc_ch_mo[]; // Month (kana)
//extern const char udc_ch_dy[]; // Day (kana)
//extern const char udc_ch_mi[]; // minute (kana)
+extern const char udc_None[];
+extern const char udc_All[];
/** A TextLCD interface for driving 4-bit HD44780-based LCDs
*
@@ -320,6 +388,8 @@
/** LCD panel format */
enum LCDType {
+// LCD6x1 = (LCD_T_A | LCD_T_C6 | LCD_T_R1), /**< 6x1 LCD panel */
+// LCD6x2 = (LCD_T_A | LCD_T_C6 | LCD_T_R2), /**< 6x2 LCD panel */
LCD8x1 = (LCD_T_A | LCD_T_C8 | LCD_T_R1), /**< 8x1 LCD panel */
LCD8x2 = (LCD_T_A | LCD_T_C8 | LCD_T_R2), /**< 8x2 LCD panel */
LCD8x2B = (LCD_T_D | LCD_T_C8 | LCD_T_R2), /**< 8x2 LCD panel (actually 16x1) */
@@ -327,20 +397,34 @@
LCD12x2 = (LCD_T_A | LCD_T_C12 | LCD_T_R2), /**< 12x2 LCD panel */
LCD12x3D = (LCD_T_D | LCD_T_C12 | LCD_T_R3), /**< 12x3 LCD panel, special mode PCF21XX */
LCD12x3D1 = (LCD_T_D1 | LCD_T_C12 | LCD_T_R3), /**< 12x3 LCD panel, special mode PCF21XX */
+// LCD12x3G = (LCD_T_G | LCD_T_C12 | LCD_T_R3), /**< 12x3 LCD panel, special mode ST7036 */
LCD12x4 = (LCD_T_A | LCD_T_C12 | LCD_T_R4), /**< 12x4 LCD panel */
LCD12x4D = (LCD_T_B | LCD_T_C12 | LCD_T_R4), /**< 12x4 LCD panel, special mode PCF21XX */
LCD16x1 = (LCD_T_A | LCD_T_C16 | LCD_T_R1), /**< 16x1 LCD panel */
LCD16x1C = (LCD_T_C | LCD_T_C16 | LCD_T_R1), /**< 16x1 LCD panel (actually 8x2) */
LCD16x2 = (LCD_T_A | LCD_T_C16 | LCD_T_R2), /**< 16x2 LCD panel (default) */
// LCD16x2B = (LCD_T_B | LCD_T_C16 | LCD_T_R2), /**< 16x2 LCD panel, alternate addressing, wrong.. */
-// LCD16x3D = (LCD_T_D | LCD_T_C16 | LCD_T_R3), /**< 16x3 LCD panel, special mode ST7036 */
+ LCD16x3D = (LCD_T_D | LCD_T_C16 | LCD_T_R3), /**< 16x3 LCD panel, special mode SSD1803 */
+// LCD16x3D1 = (LCD_T_D1 | LCD_T_C16 | LCD_T_R3), /**< 16x3 LCD panel, special mode SSD1803 */
+ LCD16x3F = (LCD_T_F | LCD_T_C16 | LCD_T_R3), /**< 16x3 LCD panel (actually 24x2) */
+ LCD16x3G = (LCD_T_G | LCD_T_C16 | LCD_T_R3), /**< 16x3 LCD panel, special mode ST7036 */
LCD16x4 = (LCD_T_A | LCD_T_C16 | LCD_T_R4), /**< 16x4 LCD panel */
+// LCD16x4D = (LCD_T_D | LCD_T_C16 | LCD_T_R4), /**< 16x4 LCD panel, special mode SSD1803 */
// LCD20x1 = (LCD_T_A | LCD_T_C20 | LCD_T_R1), /**< 20x1 LCD panel */
LCD20x2 = (LCD_T_A | LCD_T_C20 | LCD_T_R2), /**< 20x2 LCD panel */
+// LCD20x3 = (LCD_T_A | LCD_T_C20 | LCD_T_R3), /**< 20x3 LCD panel */
+// LCD20x3D = (LCD_T_D | LCD_T_C20 | LCD_T_R3), /**< 20x3 LCD panel, special mode SSD1803 */
+// LCD20x3D1 = (LCD_T_D1 | LCD_T_C20 | LCD_T_R3), /**< 20x3 LCD panel, special mode SSD1803 */
LCD20x4 = (LCD_T_A | LCD_T_C20 | LCD_T_R4), /**< 20x4 LCD panel */
+ LCD20x4D = (LCD_T_D | LCD_T_C20 | LCD_T_R4), /**< 20x4 LCD panel, special mode SSD1803 */
LCD24x1 = (LCD_T_A | LCD_T_C24 | LCD_T_R1), /**< 24x1 LCD panel */
LCD24x2 = (LCD_T_A | LCD_T_C24 | LCD_T_R2), /**< 24x2 LCD panel */
+// LCD24x3D = (LCD_T_D | LCD_T_C24 | LCD_T_R3), /**< 24x3 LCD panel */
+// LCD24x3D1 = (LCD_T_D | LCD_T_C24 | LCD_T_R3), /**< 24x3 LCD panel */
LCD24x4D = (LCD_T_D | LCD_T_C24 | LCD_T_R4), /**< 24x4 LCD panel, special mode KS0078 */
+// LCD32x1 = (LCD_T_A | LCD_T_C32 | LCD_T_R1), /**< 32x1 LCD panel */
+// LCD32x2 = (LCD_T_A | LCD_T_C32 | LCD_T_R2), /**< 32x2 LCD panel */
+// LCD32x4 = (LCD_T_A | LCD_T_C32 | LCD_T_R4), /**< 32x4 LCD panel */
// LCD40x1 = (LCD_T_A | LCD_T_C40 | LCD_T_R1), /**< 40x1 LCD panel */
LCD40x2 = (LCD_T_A | LCD_T_C40 | LCD_T_R2), /**< 40x2 LCD panel */
LCD40x4 = (LCD_T_E | LCD_T_C40 | LCD_T_R4) /**< 40x4 LCD panel, Two controller version */
@@ -349,16 +433,23 @@
/** LCD Controller Device */
enum LCDCtrl {
- HD44780 = 0, /**< HD44780 (default) */
- WS0010 = 1 | (LCD_C_SPI3_10 | LCD_C_BST), /**< WS0010 OLED Controller, 4/8 bit, SPI3 */
- ST7036 = 2 | (LCD_C_SPI4 | LCD_C_BST), /**< ST7036 3V3 with Booster, 4/8 bit, SPI4 */
- ST7032_3V3 = 3 | (LCD_C_SPI4 | LCD_C_I2C | LCD_C_BST), /**< ST7032 3V3 with Booster, 4/8 bit, SPI4, I2C */
- ST7032_5V = 4 | (LCD_C_SPI4 | LCD_C_I2C), /**< ST7032 5V no Booster, 4/8 bit, SPI4, I2C */
- KS0078 = 5, /**< KS0078 24x4 support, 4/8 bit */
- PCF2113_3V3 = 6 | (LCD_C_I2C | LCD_C_BST), /**< PCF2113 3V3 with Booster, 4/8 bit, I2C */
- PCF2116_3V3 = 7 | (LCD_C_I2C | LCD_C_BST), /**< PCF2116 3V3 with Booster, 4/8 bit, I2C */
-// PCF2116_5V = 8 | (LCD_C_I2C), /**< PCF2116 5V no Booster, 4/8 bit, I2C */
- AIP31068 = 9 | (LCD_C_SPI3_9 | LCD_C_I2C | LCD_C_BST) /**< AIP31068 I2C, SPI3 */
+ HD44780 = 0 | LCD_C_PAR, /**< HD44780 or full equivalent (default) */
+ WS0010 = 1 | (LCD_C_PAR | LCD_C_SPI3_10 | LCD_C_BST), /**< WS0010 OLED Controller, 4/8 bit, SPI3 */
+ ST7036_3V3 = 2 | (LCD_C_PAR | LCD_C_SPI4 | LCD_C_I2C | LCD_C_BST | LCD_C_CTR), /**< ST7036 3V3 with Booster, 4/8 bit, SPI4, I2C */
+ ST7036_5V = 3 | (LCD_C_PAR | LCD_C_SPI4 | LCD_C_I2C | LCD_C_BST | LCD_C_CTR), /**< ST7036 5V no Booster, 4/8 bit, SPI4, I2C */
+ ST7032_3V3 = 4 | (LCD_C_PAR | LCD_C_SPI4 | LCD_C_I2C | LCD_C_BST | LCD_C_CTR), /**< ST7032 3V3 with Booster, 4/8 bit, SPI4, I2C */
+ ST7032_5V = 5 | (LCD_C_PAR | LCD_C_SPI4 | LCD_C_I2C | LCD_C_CTR), /**< ST7032 5V no Booster, 4/8 bit, SPI4, I2C */
+ KS0078 = 6 | (LCD_C_PAR | LCD_C_SPI3_24), /**< KS0078 24x4 support, 4/8 bit, SPI3 */
+ PCF2113_3V3 = 7 | (LCD_C_PAR | LCD_C_I2C | LCD_C_BST | LCD_C_CTR), /**< PCF2113 3V3 with Booster, 4/8 bit, I2C */
+ PCF2116_3V3 = 8 | (LCD_C_PAR | LCD_C_I2C | LCD_C_BST), /**< PCF2116 3V3 with Booster, 4/8 bit, I2C */
+ PCF2116_5V = 9 | (LCD_C_PAR | LCD_C_I2C), /**< PCF2116 5V no Booster, 4/8 bit, I2C */
+ PCF2119_3V3 = 10 | (LCD_C_PAR | LCD_C_I2C | LCD_C_BST | LCD_C_CTR), /**< PCF2119 3V3 with Booster, 4/8 bit, I2C */
+// PCF2119_5V = 11 | (LCD_C_PAR | LCD_C_I2C), /**< PCF2119 5V no Booster, 4/8 bit, I2C */
+ AIP31068 = 12 | (LCD_C_SPI3_9 | LCD_C_I2C | LCD_C_BST), /**< AIP31068 I2C, SPI3 */
+ SSD1803_3V3 = 13 | (LCD_C_PAR | LCD_C_SPI3_24 | LCD_C_I2C | LCD_C_BST | LCD_C_CTR | LCD_C_PDN) /**< SSD1803 3V3 with Booster, 4/8 bit, I2C, SPI3 */
+// SSD1803_5V = 14 | (LCD_C_PAR | LCD_C_SPI3_24 | LCD_C_I2C | LCD_C_BST | LCD_C_CTR | LCD_C_PDN) /**< SSD1803 3V3 with Booster, 4/8 bit, I2C, SPI3 */
+// US2066_3V3 = 15 | (LCD_C_PAR | LCD_C_SPI3_24 | LCD_C_I2C | LCD_C_BST | LCD_C_CTR | LCD_C_PDN) /**< US2066 3V3 with Booster, 4/8 bit, I2C, SPI3 */
+// PT6314 = 16 | (LCD_C_PAR | LCD_C_SPI3_16 | LCD_C_CTR | LCD_C_PDN) /**< PT6314 VFD, 4/8 bit, SPI3 */
};
@@ -460,6 +551,25 @@
*/
void setUDC(unsigned char c, char *udc_data);
+ /** Set Contrast
+ * setContrast method is supported by some compatible devices (eg ST7032i) that have onboard LCD voltage generation
+ * Code imported from fork by JH1PJL
+ *
+ * @param unsigned char c contrast data (6 significant bits, valid range 0..63, Value 0 will disable the Vgen)
+ * @return none
+ */
+ void setContrast(unsigned char c = LCD_DEF_CONTRAST);
+
+
+ /** Set Power
+ * setPower method is supported by some compatible devices (eg SSD1803) that have power down modes
+ *
+ * @param bool powerOn Power on/off
+ * @return none
+ */
+ void setPower(bool powerOn = true);
+
+
//test
// void _initCtrl();
@@ -565,7 +675,15 @@
// Cursor
int _column;
int _row;
- LCDCursor _currentCursor;
+ LCDCursor _currentCursor;
+
+// Function mode saved to allow switch between Instruction sets after initialisation time
+// Icon, Booster mode and contrast saved to allow contrast change at later time
+// Only available for controllers with added features
+ int _function, _function_1, _function_x;
+ int _icon_power;
+ int _contrast;
+
};
//--------- End TextLCD_Base -----------
@@ -606,7 +724,7 @@
virtual void _setEnable(bool value);
/** Implementation of pure Virtual Low level writes to LCD Bus (parallel)
- * Set the RS pin ( 0 = Command, 1 = Data).
+ * Set the RS pin (0 = Command, 1 = Data).
*/
virtual void _setRS(bool value);
@@ -661,7 +779,7 @@
virtual void _setEnable(bool value);
/** Implementation of pure Virtual Low level writes to LCD Bus (serial expander)
- * Set the RS pin ( 0 = Command, 1 = Data).
+ * Set the RS pin (0 = Command, 1 = Data).
*/
virtual void _setRS(bool value);
@@ -718,7 +836,7 @@
virtual void _setEnable(bool value);
/** Implementation of pure Virtual Low level writes to LCD Bus (serial expander)
- * Set the RS pin ( 0 = Command, 1 = Data).
+ * Set the RS pin (0 = Command, 1 = Data).
*/
virtual void _setRS(bool value);
@@ -779,7 +897,7 @@
virtual void _setEnable(bool value);
/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
- * Set the RS pin ( 0 = Command, 1 = Data).
+ * Set the RS pin (0 = Command, 1 = Data).
*/
virtual void _setRS(bool value);
@@ -809,7 +927,7 @@
//---------- End TextLCD_SPI_N ------------
-#if(0)
+#if(1)
//Code checked out on logic analyser. Not yet tested on hardware..
//------- Start TextLCD_SPI_N_3_9 ---------
@@ -840,7 +958,135 @@
virtual void _setEnable(bool value);
/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
- * Set the RS pin ( 0 = Command, 1 = Data).
+ * Set the RS pin (0 = Command, 1 = Data).
+ */
+ virtual void _setRS(bool value);
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+ * Set the BL pin (0 = Backlight Off, 1 = Backlight On).
+ */
+ virtual void _setBL(bool value);
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+ * Set the databus value (4 bit).
+ */
+ virtual void _setData(int value);
+
+/** Low level writes to LCD serial bus only (serial native)
+ */
+ virtual void _writeByte(int value);
+
+// SPI bus
+ SPI *_spi;
+ DigitalOut _cs;
+
+//Test
+ DigitalOut _ps;
+
+
+// controlbyte to select between data and command. Internal value for serial bus only
+ char _controlbyte;
+
+//Backlight
+ DigitalOut *_bl;
+};
+
+//-------- End TextLCD_SPI_N_3_9 ----------
+#endif
+
+
+#if(1)
+//------- Start TextLCD_SPI_N_3_10 ---------
+
+/** Create a TextLCD interface using a controller with native SPI3 10 bits interface
+ * Note: current mbed libs only support SPI 10 bit mode for NXP platforms
+ *
+ */
+class TextLCD_SPI_N_3_10 : public TextLCD_Base {
+public:
+ /** Create a TextLCD interface using a controller with native SPI3 10 bits interface
+ * Note: current mbed libs only support SPI 10 bit mode for NXP platforms
+ *
+ * @param spi SPI Bus
+ * @param cs chip select pin (active low)
+ * @param type Sets the panel size/addressing mode (default = LCD16x2)
+ * @param bl Backlight control line (optional, default = NC)
+ * @param ctrl LCD controller (default = AIP31068)
+ */
+ TextLCD_SPI_N_3_10(SPI *spi, PinName cs, LCDType type = LCD16x2, PinName bl = NC, LCDCtrl ctrl = AIP31068);
+ virtual ~TextLCD_SPI_N_3_10(void);
+
+private:
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+ * Set the Enable pin.
+ */
+ virtual void _setEnable(bool value);
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+ * Set the RS pin (0 = Command, 1 = Data).
+ */
+ virtual void _setRS(bool value);
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+ * Set the BL pin (0 = Backlight Off, 1 = Backlight On).
+ */
+ virtual void _setBL(bool value);
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+ * Set the databus value (4 bit).
+ */
+ virtual void _setData(int value);
+
+/** Low level writes to LCD serial bus only (serial native)
+ */
+ virtual void _writeByte(int value);
+
+// SPI bus
+ SPI *_spi;
+ DigitalOut _cs;
+
+
+// controlbyte to select between data and command. Internal value for serial bus only
+ char _controlbyte;
+
+//Backlight
+ DigitalOut *_bl;
+};
+
+//-------- End TextLCD_SPI_N_3_10 ----------
+#endif
+
+#if(0)
+//Code not yet checked out on logic analyser. Not yet tested on hardware..
+
+//------- Start TextLCD_SPI_N_3_16 ---------
+
+/** Create a TextLCD interface using a controller with native SPI3 16 bits interface
+ *
+ */
+class TextLCD_SPI_N_3_16 : public TextLCD_Base {
+public:
+ /** Create a TextLCD interface using a controller with native SPI3 16 bits interface
+ *
+ * @param spi SPI Bus
+ * @param cs chip select pin (active low)
+ * @param type Sets the panel size/addressing mode (default = LCD16x2)
+ * @param bl Backlight control line (optional, default = NC)
+ * @param ctrl LCD controller (default = PT6314)
+ */
+ TextLCD_SPI_N_3_16(SPI *spi, PinName cs, LCDType type = LCD16x2, PinName bl = NC, LCDCtrl ctrl = PT6314);
+ virtual ~TextLCD_SPI_N_3_16(void);
+
+private:
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+ * Set the Enable pin.
+ */
+ virtual void _setEnable(bool value);
+
+/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
+ * Set the RS pin (0 = Command, 1 = Data).
*/
virtual void _setRS(bool value);
@@ -869,32 +1115,31 @@
DigitalOut *_bl;
};
-//-------- End TextLCD_SPI_N_3_9 ----------
+//-------- End TextLCD_SPI_N_3_16 ----------
#endif
-
-#if(0)
-//Code checked out on logic analyser. Not yet tested on hardware..
+#if(1)
+//Code to be checked out on logic analyser. Not yet tested on hardware..
-//------- Start TextLCD_SPI_N_3_10 ---------
+//------- Start TextLCD_SPI_N_3_24 ---------
-/** Create a TextLCD interface using a controller with native SPI3 10 bits interface
- * Note: current mbed libs only support SPI 10 bit mode for NXP platforms
+/** Create a TextLCD interface using a controller with native SPI3 24 bits interface
+ * Note: lib uses SPI 8 bit mode
*
*/
-class TextLCD_SPI_N_3_10 : public TextLCD_Base {
+class TextLCD_SPI_N_3_24 : public TextLCD_Base {
public:
- /** Create a TextLCD interface using a controller with native SPI3 10 bits interface
- * Note: current mbed libs only support SPI 10 bit mode for NXP platforms
+ /** Create a TextLCD interface using a controller with native SPI3 24 bits interface
+ * Note: lib uses SPI 8 bit mode
*
* @param spi SPI Bus
* @param cs chip select pin (active low)
* @param type Sets the panel size/addressing mode (default = LCD16x2)
* @param bl Backlight control line (optional, default = NC)
- * @param ctrl LCD controller (default = AIP31068)
+ * @param ctrl LCD controller (default = SSD1803)
*/
- TextLCD_SPI_N_3_10(SPI *spi, PinName cs, LCDType type = LCD16x2, PinName bl = NC, LCDCtrl ctrl = AIP31068);
- virtual ~TextLCD_SPI_N_3_10(void);
+ TextLCD_SPI_N_3_24(SPI *spi, PinName cs, LCDType type = LCD16x2, PinName bl = NC, LCDCtrl ctrl = SSD1803_3V3);
+ virtual ~TextLCD_SPI_N_3_24(void);
private:
@@ -904,7 +1149,7 @@
virtual void _setEnable(bool value);
/** Implementation of pure Virtual Low level writes to LCD Bus (serial native)
- * Set the RS pin ( 0 = Command, 1 = Data).
+ * Set the RS pin (0 = Command, 1 = Data).
*/
virtual void _setRS(bool value);
@@ -933,7 +1178,7 @@
DigitalOut *_bl;
};
-//-------- End TextLCD_SPI_N_3_10 ----------
+//-------- End TextLCD_SPI_N_3_24 ----------
#endif
@@ -990,6 +1235,11 @@
//Backlight
DigitalOut *_bl;
+
+
+//Test
+ DigitalOut _ps;
+
};
//---------- End TextLCD_I2C_N ------------
HD44780 and compatible Text LCD controllers (4bit, I2C or SPI I/F)