Revision 5:7061ce47a359, committed 2014-08-28

Comitter:

k4zuki

Date:

Thu Aug 28 10:10:37 2014 +0000

Parent:

4:844693a617dc

Child:

6:e3ed7599692c

Commit message:

simplified code using Ser26K256 library

Changed in this revision

--- a/AkiSpiLcd.cpp	Thu Aug 28 06:26:48 2014 +0000
+++ b/AkiSpiLcd.cpp	Thu Aug 28 10:10:37 2014 +0000
@@ -8,29 +8,28 @@
 AkiSpiLcd::AkiSpiLcd(PinName mosi, PinName miso, PinName sck, PinName csl, PinName csr)
     :_spi(mosi, miso, sck), _csl(csl), _csr(csr)
 {
+    _ram= new Ser23K256::Ser23K256(_spi,csr);
     _csl=0;
     _csr=1;
     _spi.format(8,0);
     _spi.frequency(2000000);
     comflag = modeflag = clearflag = 0;
-    _csr=0; //select VRAM
-    _spi.write(0x02);
-    _spi.write(0x60);
-    _spi.write(0x00);
-    for(int i=1;i<241;i++){
-        //write swapped i into RAM
-        _spi.write(
-        ( ( i & 0x01 ) << 7 )|
-        ( ( i & 0x02 ) << 5 )|
-        ( ( i & 0x04 ) << 3 )|
-        ( ( i & 0x08 ) << 1 )|
-        ( ( i & 0x10 ) >> 1 )|
-        ( ( i & 0x20 ) >> 3 )|
-        ( ( i & 0x40 ) >> 5 )|
-        ( ( i & 0x80 ) >> 7 )
-        );
-    _csr=1;
+
+    int data=0;
+    for(int i=0;i<240;i++){
+        data=( ( i & 0x01 ) << 7 )|
+            ( ( i & 0x02 ) << 5 )|
+            ( ( i & 0x04 ) << 3 )|
+            ( ( i & 0x08 ) << 1 )|
+            ( ( i & 0x10 ) >> 1 )|
+            ( ( i & 0x20 ) >> 3 )|
+            ( ( i & 0x40 ) >> 5 )|
+            ( ( i & 0x80 ) >> 7 );
+
+        _ram->write(RAMLINE_BASE+i,(uint8_t)data);
     }
+        _ram->write(RAMMODE_BASE,0x00000000);
+
 }
 
 void AkiSpiLcd::cls()
@@ -101,14 +100,14 @@
         for (int j=0; j<length; j++) {
             _spi.write( (modeflag << 7) | (comflag << 6) | (clearflag << 5) );
             _spi.write(
-                ( ( (line+1) & 0x01 ) << 7 )|
-                ( ( (line+1) & 0x02 ) << 5 )|
-                ( ( (line+1) & 0x04 ) << 3 )|
-                ( ( (line+1) & 0x08 ) << 1 )|
-                ( ( (line+1) & 0x10 ) >> 1 )|
-                ( ( (line+1) & 0x20 ) >> 3 )|
-                ( ( (line+1) & 0x40 ) >> 5 )|
-                ( ( (line+1) & 0x80 ) >> 7 )
+                ( ( (line) & 0x01 ) << 7 )|
+                ( ( (line) & 0x02 ) << 5 )|
+                ( ( (line) & 0x04 ) << 3 )|
+                ( ( (line) & 0x08 ) << 1 )|
+                ( ( (line) & 0x10 ) >> 1 )|
+                ( ( (line) & 0x20 ) >> 3 )|
+                ( ( (line) & 0x40 ) >> 5 )|
+                ( ( (line) & 0x80 ) >> 7 )
             );
 
             for(int i=0; i<50; i++) {
@@ -164,6 +163,8 @@
 //    uint8_t buffer[50];
     line*=50;
     int address=screen+line;
+    _ram->read(address,buffer,50);
+    /*
     _csr=0; //select VRAM
     _spi.write(0x03);
     _spi.write(address>>8);
@@ -172,6 +173,7 @@
         *(buffer+i)=_spi.write(0xaa);
     }
     _csr=1;
+    */
 //    return buffer;
 }
 
@@ -182,6 +184,10 @@
     screen<<=7;
     line*=50;
     int address=screen+line;
+//    for(int j=0;j<length;j++){
+    _ram->read(address,buffer,50*length);
+//    }
+    /*
     _csr=0; //select VRAM
     _spi.write(0x03);
     _spi.write(address>>8);
@@ -192,6 +198,7 @@
         }
     }
     _csr=1;
+    */
 //    return buffer;
 }
     
@@ -202,6 +209,8 @@
     screen<<=7;
     line*=50;
     int address=screen+line;
+    _ram->write(address,data,50);
+    
     _csr=0; //select VRAM
     _spi.write(0x02);
     _spi.write(address>>8);
@@ -220,7 +229,8 @@
     line*=50;
     
     int address=screen+line;
-    
+    _ram->write(address,data,50*length);
+    /*
     _csr=0; //select VRAM
     _spi.write(0x02);
     _spi.write(address>>8);
@@ -231,6 +241,7 @@
         }
     }
     _csr=1;
+    */
 }
 
     /** copies whole data in screen into LCD
@@ -240,21 +251,28 @@
     screen<<=7;
 
     int address=screen;
-    int dummy=0;
-    
-    _csl=1;
+    uint8_t* dummy;
+    /*
     _csr=0; //select VRAM
     _spi.write(0x03);
     _spi.write(address>>8);
     _spi.write(address&0xff);
+    */
     for(int j=0;j<240;j++){
+        _ram->write(RAMMODE_BASE,(modeflag << 7) | (comflag << 6) | (clearflag << 5));
+        _csl=1;
+        _ram->read(RAMMODE_BASE,dummy,2);
         for(int i=0;i<50;i++){
-            dummy=_spi.write(0xaa);
+            _ram->read(address,dummy,50);
+        }
+        _ram->read(RAMMODE_BASE+2,dummy,2);
+        wait_us(5);
+        _csl=0;
+        if(comflag == 0) {
+            comflag = 1;
+        } else {
+            comflag = 0;
         }
     }
-    _spi.write(0x00);
-    _spi.write(0x00);
-    _csr=1;
-    wait_us(5);
     _csl=0;
 }

--- a/AkiSpiLcd.h	Thu Aug 28 06:26:48 2014 +0000
+++ b/AkiSpiLcd.h	Thu Aug 28 10:10:37 2014 +0000
@@ -5,6 +5,8 @@
 #ifndef __AKISPILCD_H__
 #define __AKISPILCD_H
 
+#include "mbed.h"
+#include "Ser23K256.h"
 /** AkiSpiLcd
  * mbed library for SHARP LCD LS027B4DH01
  *
@@ -32,6 +34,11 @@
  * }
  * @endcode
  */
+#define RAMLINE_BASE 0x6000
+#define RAMMODE_BASE 0x6100
+#define SCREEN0_BASE 0x0000
+#define SCREEN1_BASE 0x3000
+ 
 class AkiSpiLcd
 {
 public:
@@ -92,6 +99,7 @@
 //    void dispOn(bool disp);
 
 private:
+    Ser23K256::Ser23K256 *_ram;
     int comflag;
     int modeflag;
     int clearflag;

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Ser23K256.lib	Thu Aug 28 10:10:37 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/romilly/code/Ser23K256/#d52cc2db5bea