Diff: lcd.c

Revision:

0:23354c86eed6

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lcd.c	Thu Jun 01 14:04:41 2017 +0000
@@ -0,0 +1,75 @@
+#include "lcd.h"
+#include "mbed.h"
+#include "lcd.h"
+
+lcd::lcd(PinName RS_LCD,PinName SCK,PinName MOSI,PinName CS) : spi(D11,D12,D13), CS(D10), RS_LCD(D9){
+    
+    }
+    
+void lcd::init_SPI(void){
+    // Chip must be deselected
+    CS = 1;
+    // Setup the spi for 8 bit data, high steady state clock,
+    // second edge capture, with a 1MHz clock rate
+    spi.format(8,3);
+    spi.frequency(10000); 
+    // Select the device by seting chip select low
+    }
+    
+void lcd::init_LCD(void){
+    init_SPI();
+    wait_ms(10);
+    CS = 0;
+    RS_LCD = 0;
+    spi.write(0x29); // Function Set - Table 1
+    spi.write(0x1D); // Bias Set
+    spi.write(0x50); // Power Control
+    spi.write(0x6C); // Follower Control
+    spi.write(0x7C); // Contrast Set
+    spi.write(0x03); // Function Set - Table 0
+    spi.write(0x0F); 
+    spi.write(0x01); // Clear Display
+    wait_ms(2);
+    spi.write(0x06); // Display On
+    wait_ms(10);
+    RS_LCD=1;
+    CS=1;
+    wait_ms(10);
+    return;
+    } 
+    
+void lcd::writeCmd_LCD(char c){
+    CS =0;
+    RS_LCD =0;
+    spi.write(c);
+    RS_LCD = 1;
+    CS = 1;
+    return;
+}
+void lcd::setPosition(char ligne, char colonne){
+    char adress = 0x80 + ((ligne-1)*16) + (colonne -1);
+    writeCmd_LCD(adress);
+    wait_ms(1);
+    return;
+}
+void lcd::writeStr_LCD(char c[], char ligne, char colonne){
+    char i=0;
+    setPosition(ligne,colonne);
+    while(c[i] != '\0'){
+        write_LCD(c[i]);
+        i++;        
+    }
+    char lig = i/16 + 1;
+    char col = i%16 + 1;
+    setPosition(lig,col);
+}
+void lcd::write_LCD(char c){
+    CS = 0;
+    RS_LCD = 1;
+    spi.write(c);
+  //  wait_ms(1);
+    RS_LCD = 1;
+    CS = 1;
+    return;
+    }
+    
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