Diff: S6D0151_TFT.cpp

Revision:

1:a3651128e297

Parent:

0:de7db46990d0

Child:

2:1e3ac0621559

Child:

4:648a364412e4

--- a/S6D0151_TFT.cpp	Sun Aug 23 12:28:24 2015 +0000
+++ b/S6D0151_TFT.cpp	Wed Aug 26 14:58:55 2015 +0000
@@ -1,22 +1,6 @@
- /* mbed library for 128*160 pixel display TFT based on ST7735 LCD Controller
- * ST7735 specific routines (initialization, window addressing, pixel output) 
- * Copyright (c) 2011 Jonne Valola
- *
- * WARNING !! WORK IN PROGRESS !!!
- *
- * Graphics routines and SPI routines derived work used with permission from:
- * mbed library for 240*320 pixel display TFT based on HX8347D LCD Controller
- * Copyright (c) 2011 Peter Drescher - DC2PD
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
+ /* mbed library for 128*160 pixel display TFT based on S6D0151 LCD Controller
+  *
+  */
 
 #include "S6D0151_TFT.h"
 #include "mbed.h"
@@ -45,6 +29,7 @@
 
 void S6D0151_TFT::set_orientation(unsigned int o) {
     orientation = o;
+    /* I do NOT understand rotation methods. */
 #if 0
     switch (orientation) {
         case 0:
@@ -96,7 +81,7 @@
     data = (reg   )&0x00ff;
     _spi.write( data );
     _cs = 1;
-    wait_us(1);         // cs=highの時間規定は無かった
+    wait_us(1);         // cs=high Time has not been defined.
     _cs = 0;
     _spi.write(0x72);   // RW=0,ID=0,RS=1(data write)
     data = (dat>>8)&0x00ff;
@@ -119,18 +104,19 @@
 void S6D0151_TFT::tft_reset() {
     // init SPI
     _spi.format(8,3);                // 8 bit spi mode 3
-    _spi.frequency(6000000);         // 6Mhz SPI clock ... 10Mhz is maximum for display, but it seems to work
+    _spi.frequency(6000000);         // 6Mhz SPI clock ... 10Mhz is maximum for display
     
-    // reset exactly like in Arduino version
     _cs = 0;
-    _reset = 1;                       // reset
+    _reset = 1;
     wait_ms(500);
     _reset = 0;                       // reset
     wait_ms(500);
-    _reset = 1;                       // reset
+    _reset = 1;
     wait_ms(500);
     
     /* Start Initial Sequence ----------------------------------------------------*/
+    /* follow code is aitendo demo-code...........................................*/
+    /* I have changed the part in the demo code to reference----------------------*/
     regwr(0x0007,0x0020);   //DISPLAY CONTROL (R07h)
     // X X X PT1 PT0 X X SPT X X GON DTE CL REV D1 D0
             //PT[1:0]=00 V63/V0 Normal Drive
@@ -196,7 +182,7 @@
    
     regwr(0x0001,0x0014);   //DRIVER OUTPUT CONTROL (R01h)
     // X X X DPL EPL SM GS SS X X X NL4 NL3 NL2 NL1 NL0
-    // demo codeは0x0114だったが、SSビットを0にすると方向が正常になった。
+    // demo code was 0x0114,SS bit=1 is reverse horizontal.
         //DPL=0,EPL=0
         //SM=0 even/odd division is selected
         //GS=0 G1 is output first and G160 is finally output.
@@ -346,10 +332,12 @@
     regwr(0x0007,0x0037); //DISPLAY CONTROL (R07h)
     // X X X PT1 PT0 X X SPT X X GON DTE CL REV D1 D0
     //GON=1,DTE=1 VGH/VGL Normal operation
-    //Revは色反転の模様
+    //Rev bit mean Color reverse.
     //REV=1 Displays all character and graphics display sections with Reverse
     //D[1:0]=11 Display is RAM data
 
+    /*　Up to here, demo code reference partsas ------------------------------*/
+
     WindowMax ();
 }
 
@@ -357,7 +345,6 @@
 void S6D0151_TFT::pixel(int x, int y, int color) {
   if ((x >= width()) || (y >= height())) return;
 
-//  window(x,y,x+1,y+1);
   window(x,y,1,1);
 
     wr_dat_start();
@@ -379,8 +366,8 @@
     dd=((vea&0xff)<<8)|(vsa&0xff);
     regwr(0x0045, dd );    //VERTICAL RAM ADDRESS POSITION (R45h)
 
-//  wr_cmd(ST7735_RAMWR);   // write to RAM
-    set_start_address(hea,vea);
+//    set_start_address(hea,vea);
+    set_start_address(hsa,vsa);
     reg0(0x0022);   //Write data to GRAM
 }
 
@@ -773,92 +760,3 @@
 }
 
 
-int S6D0151_TFT::BMP_16(unsigned int x, unsigned int y, const char *Name_BMP) {
-// BEWARE !
-// NOT TESTED
-#define OffsetPixelWidth    18
-#define OffsetPixelHeigh    22
-#define OffsetFileSize      34
-#define OffsetPixData       10
-#define OffsetBPP           28
-
-    char filename[50];
-    unsigned char BMP_Header[54];
-    unsigned short BPP_t;
-    unsigned int PixelWidth,PixelHeigh,start_data;
-    unsigned int    i,off;
-    int padd,j;
-    unsigned short *line;
-
-    // get the filename
-#if 0
-    LocalFileSystem local("local");
-#endif
-    sprintf(&filename[0],"/local/");
-    i=7;
-    while (*Name_BMP!='\0') {
-        filename[i++]=*Name_BMP++;
-    }
-    FILE *Image = fopen((const char *)&filename[0], "r");  // open the bmp file
-    if (!Image) {
-        return(0);      // error file not found !
-    }
-
-    fread(&BMP_Header[0],1,54,Image);      // get the BMP Header
-
-    if (BMP_Header[0] != 0x42 || BMP_Header[1] != 0x4D) {  // check magic byte
-        fclose(Image);
-        return(-1);     // error no BMP file
-    }
-
-    BPP_t = BMP_Header[OffsetBPP] + (BMP_Header[OffsetBPP + 1] << 8);
-    if (BPP_t != 0x0010) {
-        fclose(Image);
-        return(-2);     // error no 16 bit BMP
-    }
-
-    PixelHeigh = BMP_Header[OffsetPixelHeigh] + (BMP_Header[OffsetPixelHeigh + 1] << 8) + (BMP_Header[OffsetPixelHeigh + 2] << 16) + (BMP_Header[OffsetPixelHeigh + 3] << 24);
-    PixelWidth = BMP_Header[OffsetPixelWidth] + (BMP_Header[OffsetPixelWidth + 1] << 8) + (BMP_Header[OffsetPixelWidth + 2] << 16) + (BMP_Header[OffsetPixelWidth + 3] << 24);
-    if (PixelHeigh > height() + y || PixelWidth > width() + x) {
-        fclose(Image);
-        return(-3);      // to big
-    }
-
-    start_data = BMP_Header[OffsetPixData] + (BMP_Header[OffsetPixData + 1] << 8) + (BMP_Header[OffsetPixData + 2] << 16) + (BMP_Header[OffsetPixData + 3] << 24);
-
-    line = (unsigned short *) malloc (PixelWidth); // we need a buffer for a line
-    if (line == NULL) {
-        return(-4);         // error no memory
-    }
-
-    // the lines are padded to multiple of 4 bytes
-    padd = -1;
-    do {
-        padd ++;
-    } while ((PixelWidth * 2 + padd)%4 != 0);
-
-    window(x, y,PixelWidth,PixelHeigh);
-    //wr_cmd(0x2C);
-    wr_dat_start();
-    #ifndef TARGET_KL25Z // only 8 Bit SPI 
-    _spi.format(16,3);  
-    #endif                          // switch to 16 bit Mode 3
-    for (j = PixelHeigh - 1; j >= 0; j--) {               //Lines bottom up
-        off = j * (PixelWidth * 2 + padd) + start_data;   // start of line
-        fseek(Image, off ,SEEK_SET);
-        fread(line,1,PixelWidth * 2,Image);       // read a line - slow !
-        for (i = 0; i < PixelWidth; i++) {        // copy pixel data to TFT
-        #ifndef TARGET_KL25Z // only 8 Bit SPI
-            _spi.write(line[i]);                  // one 16 bit pixel
-        #else  
-            _spi.write(line[i] >> 8);
-            _spi.write(line[i]);
-        #endif    
-        } 
-    }
-    _spi.format(8,3);
-    wr_dat_stop();
-    free (line);
-    fclose(Image);
-    return(1);
-}
\ No newline at end of file