Initial setup for FC-113 controller of TextLCD(1602A)
This example is a simple use case for the user of Text LCD with the FC-113 controller, based on Mbed OS 5.
Note that PCF8574T has Mbed base addresses 0x40 ~ 0x4E, while PCF8574AT has base addresses 0x70 ~ 0x7E.
I used 0x4E for Text LCD with the FC-113 controller.
If you need to fine-tune the Text LCD or using another type the TextLCD, please see here.
main.cpp
- Committer:
- Daniel_Lee
- Date:
- 2019-12-24
- Revision:
- 7:9fcc3c0acd50
- Parent:
- 2:b60cb847489c
File content as of revision 7:9fcc3c0acd50:
#include "mbed.h" #include "TextLCD.h" // I2C Communication I2C i2c_lcd(A4,A5); // SDA, SCL - I2C3 // 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, 0x40, TextLCD::LCD16x2); // I2C bus, PCF8574 Slaveaddress, LCD Type TextLCD_I2C lcd(&i2c_lcd, 0x4E); // I2C bus, PCF8574(FC-113) Slaveaddress, LCD Type(1602A) //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() { #if 0 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); #else lcd.cls (); lcd.setBacklight (TextLCD :: LightOn); lcd.printf ("LCD check - online compile"); lcd.setAddress (0, 1); lcd.printf ("Hello MBED\n"); #endif }