Diff: main.cpp

Revision:

8:971ea27171dd

Parent:

4:9decf12340fa

Child:

9:bbe01bf9a3ef

--- a/main.cpp	Wed Feb 25 22:01:10 2015 +0000
+++ b/main.cpp	Wed Feb 25 23:27:42 2015 +0000
@@ -21,6 +21,27 @@
 #include "spi_master.h"
 #include "Adafruit_SSD1306.h"
 
+#define SSD1306_SETCONTRAST 0x81
+#define SSD1306_DISPLAYALLON_RESUME 0xA4
+#define SSD1306_DISPLAYALLON 0xA5
+#define SSD1306_NORMALDISPLAY 0xA6
+#define SSD1306_INVERTDISPLAY 0xA7
+#define SSD1306_DISPLAYOFF 0xAE
+#define SSD1306_DISPLAYON 0xAF
+#define SSD1306_SETDISPLAYOFFSET 0xD3
+#define SSD1306_SETCOMPINS 0xDA
+#define SSD1306_SETVCOMDETECT 0xDB
+#define SSD1306_SETDISPLAYCLOCKDIV 0xD5
+#define SSD1306_SETPRECHARGE 0xD9
+#define SSD1306_SETMULTIPLEX 0xA8
+#define SSD1306_SETLOWCOLUMN 0x00
+#define SSD1306_SETHIGHCOLUMN 0x10
+#define SSD1306_SETSTARTLINE 0x40
+#define SSD1306_MEMORYMODE 0x20
+#define SSD1306_COMSCANINC 0xC0
+#define SSD1306_COMSCANDEC 0xC8
+#define SSD1306_SEGREMAP 0xA0
+#define SSD1306_CHARGEPUMP 0x8D
 //DigitalOut spi_cs(P0_10);
 DigitalOut rst(A3);
 DigitalOut dc(A4);
@@ -29,37 +50,74 @@
 
 SPIClass SPI1(NRF_SPI1);
 
-Serial pc(USBTX, USBRX);
+
 //Adafruit_SSD1306_nrf gOled1(&SPI1,A4,A3,D2);// SPI, DC, RST, CS
 
 int main(void)
 {   
-    pc.printf("SPI Demo Start \r\n");
+
         led = 1; // off
-    //SPI1.begin();
     SPI1.begin(P0_8, P0_9, P0_11);//SCK, MOSI, MISO
-    pc.printf("Step 1 \r\n");
+
+//Display initialisation
     rst = 1;
     // VDD (3.3V) goes high at start, lets just chill for a ms
     wait_ms(1);
     // bring reset low
-    pc.printf("Step 2 \r\n"); 
-        rst = 0;
+    rst = 0;
     // wait 10ms
     wait_ms(10);
     // bring out of reset
     rst = 1;
     // turn on VCC (9V?)
-    pc.printf("Step 3 \r\n"); 
-    SPI1.transfer(0xAE);// SSD1306_DISPLAYOFF
-    SPI1.transfer(0xD5);// SSD1306_SETDISPLAYCLOCKDIV
-    SPI1.transfer(0x80);// // the suggested ratio 0x80
-    pc.printf("Step 4 \r\n");                             
-    led = 0; // on
-    wait(1);
-    led = 1;
-    wait(1);
-    led = 0;
+    SPI1.transfer(SSD1306_DISPLAYOFF);
+    SPI1.transfer(SSD1306_SETDISPLAYCLOCKDIV);
+    SPI1.transfer(0x80);                                  // the suggested ratio 0x80
+
+    SPI1.transfer(SSD1306_SETMULTIPLEX);
+    SPI1.transfer(31);
+
+    SPI1.transfer(SSD1306_SETDISPLAYOFFSET);
+    SPI1.transfer(0x0);                                   // no offset
+
+    SPI1.transfer(SSD1306_SETSTARTLINE | 0x0);            // line #0
+
+    SPI1.transfer(SSD1306_CHARGEPUMP);
+    SPI1.transfer(0x14);
+
+    SPI1.transfer(SSD1306_MEMORYMODE);
+    SPI1.transfer(0x00);                                  // 0x0 act like ks0108
+
+    SPI1.transfer(SSD1306_SEGREMAP | 0x1);
+
+    SPI1.transfer(SSD1306_COMSCANDEC);
+
+    SPI1.transfer(SSD1306_SETCOMPINS);
+    SPI1.transfer(0x02);        // TODO - calculate based on _rawHieght ?
+
+    SPI1.transfer(SSD1306_SETCONTRAST);
+    SPI1.transfer(0x8F  );
+
+    SPI1.transfer(SSD1306_SETPRECHARGE);
+    SPI1.transfer( 0x22);
+
+    SPI1.transfer(SSD1306_SETVCOMDETECT);
+    SPI1.transfer(0x40);
+
+    SPI1.transfer(SSD1306_DISPLAYALLON_RESUME);
+
+    SPI1.transfer(SSD1306_NORMALDISPLAY);
+    
+    SPI1.transfer(SSD1306_DISPLAYON);
+
+
+
+    while(1){                      
+      led = 0; // on
+      wait(1);
+      led = 1;
+      wait(1);
+    }
 }