Henrique Rosa
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LCD_20X4_I2C_testt
Teste LCD I2C 20X4
Diff: main.cpp
- Revision:
- 0:0c1de053c3b1
- Child:
- 1:13cafaed8cff
diff -r 000000000000 -r 0c1de053c3b1 main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Wed May 02 21:54:53 2018 +0000 @@ -0,0 +1,89 @@ +// 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(D14, D15); // 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, 0x7F, TextLCD::LCD16x2); // I2C bus, PCF8574 Slaveaddress, LCD Type Original = 0x42, Usando I2C scanner = 0x3F +//TextLCD_I2C lcd(&i2c_lcd, 0x42, 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); + +// 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); +} \ No newline at end of file