Revision 0:b3c8fdd01601, committed 2014-05-06

Comitter:

k4zuki

Date:

Tue May 06 17:07:34 2014 +0000

Child:

1:57de84d2025c

Commit message:

some formatting fix

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/AkiSpiLcd.cpp	Tue May 06 17:07:34 2014 +0000
@@ -0,0 +1,139 @@
+/*
+this is for SHARP LCD LS027B4DH01
+by Kazuki Yamamoto, or _K4ZUKI_
+*/
+
+#include "mbed.h"
+#include "AkiSpiLcd.h"
+
+AkiSpiLcd::AkiSpiLcd(PinName mosi,PinName sck, PinName cs, PinName disp)
+    :_spi(mosi,NC,sck), _cs(cs), _disp(disp)
+{
+    _cs=0;
+    _spi.format(8,0);
+    _spi.frequency(2000000);
+    comflag = modeflag = clearflag = 0;
+    _disp=1;
+}
+
+void AkiSpiLcd::cls()
+{
+    modeflag=0;
+    clearflag=1;
+
+    _cs=1;
+    wait_us(5);
+
+    _spi.write( (modeflag << 7) | (comflag << 6) | (clearflag << 5) );
+    _spi.write(0x00);
+
+    wait_us(5);
+    _cs=0;
+
+    if(comflag == 0) {
+        comflag = 1;
+    } else {
+        comflag = 0;
+    }
+}
+
+void AkiSpiLcd::updateSingle(int line, uint8_t* data)
+{
+    modeflag=1;
+    clearflag=0;
+
+    _cs=1;
+    wait_us(5);
+
+    _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 )
+    );
+
+    for(int i=0; i<50; i++) {
+        _spi.write( *(data+i) );
+    }
+    _spi.write(0x00);
+    _spi.write(0x00);
+
+    wait_us(5);
+    _cs=0;
+
+    if(comflag == 0) {
+        comflag = 1;
+    } else {
+        comflag = 0;
+    }
+}
+
+void AkiSpiLcd::updateMulti(int line, int length, uint8_t* data)
+{
+    modeflag=1;
+    clearflag=0;
+
+    if(length>0) {
+        _cs=1;
+        wait_us(5);
+        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 )
+            );
+
+            for(int i=0; i<50; i++) {
+                _spi.write( *(data+(50*j+i)) );//hogepic[50*j+i]
+            }
+            line+=1;
+        }
+        _spi.write(0x00);
+        _spi.write(0x00);
+        wait_us(5);
+        _cs=0;
+    }
+    if(comflag == 0) {
+        comflag = 1;
+    } else {
+        comflag = 0;
+    }
+}
+
+void AkiSpiLcd::cominvert()
+{
+    modeflag=0;
+    clearflag=0;
+
+    _cs=1;
+
+    _spi.write( (modeflag << 7) | (comflag << 6) | (clearflag << 5) );
+    _spi.write(0x00);
+    wait_us(5);
+    _cs=0;
+    if(comflag == 0) {
+        comflag = 1;
+    } else {
+        comflag = 0;
+    }
+}
+
+void AkiSpiLcd::dispOn(bool disp)
+{
+    if(disp) {
+        _disp=1;
+    } else {
+        _disp=0;
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/AkiSpiLcd.h	Tue May 06 17:07:34 2014 +0000
@@ -0,0 +1,55 @@
+/*
+this is for SHARP LCD LS027B4DH01
+by Kazuki Yamamoto, or _K4ZUKI_
+*/
+
+#ifndef __AKISPILCD_H__
+#define __AKISPILCD_H
+//#include "mbed.h"
+
+class AkiSpiLcd
+{
+public:
+    /** Constructor
+    * @param mosi SPI data input
+    * @param sck SPI clock input
+    * @param cs HIGH-active chip enable input
+    * @param disp HIGH-active display enable input
+    */
+    AkiSpiLcd(PinName mosi,PinName sck, PinName cs, PinName disp);
+
+    /** Clear screen
+    */
+    void cls();
+
+    /** Writes single line(400 bits = 50 bytes)
+    * @param line line number(1-240)
+    * @param *data pointer to data
+    */
+    void updateSingle(int line, uint8_t* data);
+
+    /** Writes multi lines(400 x N bits = 50 x N bytes)
+    * @param line line number(1-240)
+    * @param length number of line to write
+    * @param *data pointer to data
+    */
+    void updateMulti(int line, int length, uint8_t* data);
+
+    /** Inverting internal COM signal
+    */
+    void cominvert();
+
+    /** Enables/disables display. internal memory will not flushed
+    * @param disp true = display is on / false = display is off
+    */
+    void dispOn(bool disp);
+    
+private:
+    int comflag;
+    int modeflag;
+    int clearflag;
+    SPI _spi;
+    DigitalOut _cs;
+    DigitalOut _disp;
+};
+#endif