Luis Silvio Cordova Rivadeneira
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UPSM_TextLCD
Manejo de pantallas de texto con varias interfaces de comunicación
Diff: main.cpp
- Revision:
- 5:2e4e5085d597
- Parent:
- 4:a3e4bb2053cb
- Child:
- 6:8b78e3cddd78
--- a/main.cpp Sun Mar 29 13:12:07 2015 +0000 +++ b/main.cpp Wed Feb 12 21:20:37 2020 +0000 @@ -2,74 +2,139 @@ #include "mbed.h" #include "TextLCD.h" - + // Host PC Communication channels -Serial pc(USBTX, USBRX); // tx, rx - +Serial pc(PA_2,PA_3); // tx, rx + // I2C Communication -I2C i2c_lcd(p9,p10); // SDA, SCL +I2C i2c_lcd(PB_9, PB_8); // SDA, SCL //I2C i2c_lcd(p28,p27); // SDA, SCL - + // SPI Communication -SPI spi_lcd(p5, NC, p7); // MOSI, MISO, SCLK +//SPI spi_lcd(p5, NC, p7); // MOSI, MISO, SCLK -// LCD instantiation +// LCD instantiation //TextLCD lcd(p15, p16, p17, p18, p19, p20, TextLCD::LCD20x2); // 4bit bus: rs, e, d4-d7 -TextLCD_I2C lcd(&i2c_lcd, 0x40, TextLCD::LCD20x4); // I2C exp: I2C bus, PCF8574 Slaveaddress, LCD Type +TextLCD_I2C lcd(&i2c_lcd, 0x4E, TextLCD::LCD20x4); // I2C exp: I2C bus, PCF8574 Slaveaddress, LCD Type //TextLCD_I2C lcd(&i2c_lcd, 0x42, TextLCD::LCD16x2, TextLCD::WS0010); // I2C exp: I2C bus, PCF8574 Slaveaddress, LCD Type, Ctrl Type //TextLCD_I2C lcd(&spi_lcd, p8, TextLCD::LCD24x4D); // I2C exp: SPI bus, CS pin, LCD Type //TextLCD_SPI_N lcd(&spi_lcd, p8, p9, TextLCD::LCD16x2, NC, TextLCD::ST7032_3V3); // SPI native: SPI bus, CS pin, RS pin, LCDType=LCD16x2, BL=NC, LCDTCtrl=ST7032 //TextLCD_I2C_N lcd(&i2c_lcd, ST7032_SA, TextLCD::LCD16x2, NC, TextLCD::ST7032_3V3); // I2C native: I2C bus, slaveaddress, LCDType=LCD16x2, BL=NC, LCDTCtrl=ST7032 =Ok //TextLCD_I2C_N lcd(&i2c_lcd, SSD1803_SA1, TextLCD::LCD20x4D, NC, TextLCD::SSD1803_3V3); // I2C native: I2C bus, slaveaddress, LCDType=LCD20x4D, BL=NC, LCDTCtrl=SSD1803 =Ok - -int main() { - Timer t; + +int main() +{ + Timer t; + + pc.printf("TextLCD Enhanced Test. Columns=%d, Rows=%d\n\r", lcd.columns(), lcd.rows()); + + for (int row=0; row<lcd.rows(); row++) { + int col=0; - pc.printf("TextLCD Enhanced 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)); + 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('*'); + 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('+'); } - - pc.printf("MemAddr(Col=%d, Row=%d)=0x%02X\n\r", col, row, lcd.getAddress(col, row)); - lcd.putc('+'); - } + wait(1); +// Fill screen again and time it + t.start(); -// Fill screen again and time it - t.start(); + for (int row=0; row<lcd.rows(); row++) { + int col=0; + + lcd.putc('0' + row); - for (int row=0; row<lcd.rows(); row++) { - int col=0; - - lcd.putc('0' + row); - - for (col=1; col<lcd.columns()-1; col++) { - lcd.putc('*'); + for (col=1; col<lcd.columns()-1; col++) { + lcd.putc('*'); + } + + lcd.putc('+'); } - - lcd.putc('+'); - } - t.stop(); - pc.printf("All my hard work took %f sec\r\n", t.read()); + t.stop(); + pc.printf("All my hard work took %f sec\r\n", t.read()); + wait(1); + // Show cursor as blinking character - lcd.setCursor(TextLCD::CurOff_BlkOn); - + 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); - - pc.printf("Bye now\r\n"); +// 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); + + pc.printf("Bye now\r\n"); + + wait(1); + + // Clear the screen and locate to 0,0 + lcd.cls(); + + // LCD Backlight control + lcd.setBacklight(TextLCD::LightOn); + + // LCD Orientation control, supported for some Controllers + //lcd.setOrient(TextLCD::Bottom); + + // LCD BigFont control, supported for some Controllers + //lcd.LCDBigFont(TextLCD::TopBottomLine); + + // Locate cursor to a screen column and row + int col = 0; + int row = 0; + lcd.locate(col,row); + wait(1); + + // Write a character to the LCD "ARROW" + int c = 1; + for (int row=0; row<lcd.rows(); row++) { + lcd.putc(c);wait(0.1); + + for (col=1; col<lcd.columns()-1; col++) { + lcd.putc(c);wait(0.1); + } + } + wait(2); + + // Write a raw string to the LCD + const char* text = "Hola text"; + lcd.cls(); + lcd.locate(1,1); + lcd.printf(text); + wait(1); + + // Write a raw string to the LCD *-> pointer* + const char* msg = "Hello printf"; + int string_size = strlen (msg); + lcd.setCursor(TextLCD::CurOff_BlkOff); + lcd.locate(1,2); + lcd.printf("msg: %.*s", string_size, msg); + wait(1); + + + + // Return the memoryaddress of screen column and row location + lcd.getAddress(col,row); + pc.printf("column %d\trow %d\r\n",col,row); + wait(1); + + + + // Return the number of rows ans columns + pc.printf("column %d\trow %d\r\n",lcd.rows(),lcd.columns()); + wait(1); + + + }