Henrique Rosa
/
LCD_20X4_I2C_testt
Teste LCD I2C 20X4
main.cpp
- Committer:
- silviosz
- Date:
- 2022-05-11
- Revision:
- 2:74d01fef184a
- Parent:
- 1:13cafaed8cff
- Child:
- 3:e87183be497b
File content as of revision 2:74d01fef184a:
// projeto: 2018_I2C_LCD_03 // testado com PCF8574 em 2018-04-27 << Funcionando Ok // 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(I2C_SDA, I2C_SCL); // SDA, SCL >>> NUCLEO: D14,D15 // SPI Communication //SPI spi_lcd(D14, NC, D15); // MOSI, MISO, SCLK //4-bit bus //TextLCD lcd(p15, p16, p17, p18, p19, p20, TextLCD::LCD40x2); // RS, E, D4-D7 //TextLCD lcd(p15, p16, p17, p18, p19, p20); // RS, E, D4-D7, LCDType=LCD16x2, BL=NC, E2=NC, LCDTCtrl=HD44780 //I2C Portexpander PCF8574 TextLCD_I2C lcd(&i2c_lcd, 0x7e, TextLCD::LCD20x4); // I2C bus, PCF8574 Slaveaddress, LCD Type Original = 0x42, Usando I2C scanner = 0x3F //TextLCD_I2C lcd(&i2c_lcd, 0x7e, TextLCD::LCD16x2, TextLCD::WS0010); // I2C bus, PCF8574 addr, LCD Type, Ctrl Type //I2C Portexpander MCP23008 //TextLCD_I2C lcd(&i2c_lcd, MCP23008_SA0, TextLCD::LCD16x3G, TextLCD::ST7036_3V3); // I2C bus, MCP23008 Slaveaddress, LCD Type, LCDTCtrl=ST7036 //SPI Portexpander SN74595 //TextLCD_SPI lcd(&spi_lcd, p8, TextLCD::LCD24x4D; TextLCD::KS0078); // SPI bus, CS pin, LCD Type //TextLCD_SPI lcd(&spi_lcd, p8, TextLCD::LCD40x2); // SPI bus, CS pin, LCD Type //TextLCD_SPI lcd(&spi_lcd, p8, TextLCD::LCD40x4); // SPI bus, CS pin, LCD Type //Native I2C //TextLCD_I2C_N lcd(&i2c_lcd, ST7032_SA, TextLCD::LCD16x2, NC, TextLCD::ST7032_3V3); // I2C bus, Slaveaddress, LCD Type, BL=NC, LCDTCtrl=ST7032_3V3 //TextLCD_I2C_N lcd(&i2c_lcd, PCF2116_SA0, TextLCD::LCD12x4D, NC, TextLCD::PCF2116_3V3); // I2C bus, Slaveaddress, LCD Type, BL=NC, LCDTCtrl=PCF2116_3V3 //TextLCD_I2C_N lcd(&i2c_lcd, PCF2116_SA0, TextLCD::LCD24x2, NC, TextLCD::PCF2116_3V3); // I2C bus, Slaveaddress, LCD Type, BL=NC, LCDTCtrl=PCF2116_3V3 //TextLCD_I2C_N lcd(&i2c_lcd, SSD1803_SA1, TextLCD::LCD20x4D, NC, TextLCD::SSD1803_3V3); // I2C bus, slaveaddress, LCDType=LCD16x2, BL=NC, LCDTCtrl=SSD1803A //Native SPI 4 wire, 8 bits //TextLCD_SPI_N lcd(&spi_lcd, p8, p9); // SPI bus, CS pin, RS pin, LCDType=LCD16x2, BL=NC, LCDTCtrl=ST7032_3V3 //Native SPI 3 wire, 10bits //TextLCD_SPI_N_3_10 lcd(&spi_lcd, p8, TextLCD::LCD16x2, NC, TextLCD::WS0010); // SPI bus, CS, LCDType=LCD16x2, BL=NC, LCDTCtrl=WS0010 //TextLCD_SPI_N lcd(&spi_lcd, p8, p9, TextLCD::LCD16x3G, NC, TextLCD::ST7036_3V3); // SPI bus, CS pin, RS pin, LCDType=LCD16x2, BL=NC, LCDTCtrl=ST7036 //Native SPI 3 wire, 24 bits, SSD1803A //TextLCD_SPI_N_3_24 lcd(&spi_lcd, p8, TextLCD::LCD20x4D, NC, TextLCD::SSD1803_3V3); // SPI bus, CS pin, LCDType=LCD20x4, BL=NC, LCDTCtrl=SSD1803A 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); lcd.setBacklight(TextLCD::LightOn); // 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); lcd.setUDC(2, (char *) udc_2); lcd.putc(2); lcd.setUDC(3, (char *) udc_3); lcd.putc(3); lcd.setUDC(4, (char *) udc_4); lcd.putc(4); lcd.setUDC(5, (char *) udc_5); lcd.putc(5); lcd.setUDC(6, (char *) udc_6); lcd.putc(6); lcd.setUDC(7, (char *) udc_7); lcd.putc(7); //lcd.setBacklight(TextLCD::LightOn); */ }