Kazuki Yamamoto
scrolling example code for SHARP LCD LS027B4DH01/LS027B7DH01, using AkiSpiLcd library
This is very basic library example to access a graphic LCD LS027B4DH01 or LS027B7DH01
Import libraryAkiSpiLcd
Basic library for SHARP LCD LS027B4DH01/LS027B7DH01
Last commit 23 Oct 2016 by 
Kazuki Yamamoto
- schematic example1:
- schematic example2:
- example1 photo:
- example2 photo:
- example2 movie (mpeg4 movie):
Revision 1:be675380f70b, committed 2014-05-04
- Comitter:
- k4zuki
- Date:
- Sun May 04 03:34:28 2014 +0000
- Parent:
- 0:3569e2cfb60b
- Child:
- 2:3554ec6df722
- Commit message:
- library fix / scrolling hogepic
Changed in this revision
| AkiSpiLcd.cpp | Show annotated file Show diff for this revision Revisions of this file |
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/AkiSpiLcd.cpp Thu May 01 00:01:02 2014 +0000
+++ b/AkiSpiLcd.cpp Sun May 04 03:34:28 2014 +0000
@@ -76,33 +76,32 @@
modeflag=1;
clearflag=0;
- _cs=1;
- wait_us(5);
+ 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 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]
+ for(int i=0; i<50; i++) {
+ _spi.write( *(data+(50*j+i)) );//hogepic[50*j+i]
+ }
+ line+=1;
}
- line+=1;
+ _spi.write(0x00);
+ _spi.write(0x00);
+ wait_us(5);
+ _cs=0;
}
- _spi.write(0x00);
- _spi.write(0x00);
-
- wait_us(5);
- _cs=0;
-
if(comflag == 0) {
comflag = 1;
} else {
@@ -119,7 +118,7 @@
_spi.write( (modeflag << 7) | (comflag << 6) | (clearflag << 5) );
_spi.write(0x00);
- wait_us(20);
+ wait_us(5);
_cs=0;
if(comflag == 0) {
comflag = 1;
--- a/main.cpp Thu May 01 00:01:02 2014 +0000
+++ b/main.cpp Sun May 04 03:34:28 2014 +0000
@@ -3,78 +3,42 @@
#include "mbed.h"
#include "hogepic.h"
#include "AkiSpiLcd.h"
+
/*
-1 SCLK d3=p13
-2 MOSI d5=p11
-3 CS d2=p14
-4 DISP enable d7=p24
+1 SCLK D3=p13
+2 MOSI D5=p11
+3 CS D2=p14
+4 DISP enable D5=p22
*/
-/*
-SPI LCD(MOSI_,NC,SCK_);
-DigitalOut CS(D2);
-DigitalOut DISP(D5);
-DigitalOut COMCLK(D4);
-*/
+
AkiSpiLcd LCD(MOSI_, SCK_, D2, D5);
DigitalOut myled(LED1);
-//Ticker disp;
+Ticker disp;
extern volatile const uint8_t hogepic[];
-/*
+
void dispinvert(void)
{
+ LCD.cominvert();
}
-*/
+
int main()
{
wait_ms(1);
+// disp.attach(&dispinvert,0.1);
LCD.cls();
LCD.updateSingle(10,(uint8_t*)(hogepic+2000));
LCD.updateMulti(100,(240-100),(uint8_t*)(hogepic));
-/*
-// disp.attach(&dispinvert,0.1);
- CS=0;
-
- LCD.format(8,0);
- LCD.frequency(1000000);
-
- CS=1;
- LCD.write(0x20);
- LCD.write(0x00);
- wait_us(5);
- CS=0;
-
- DISP=1;
-
- CS=1;
- LCD.write(0x80);
- for(int j=0; j<240; j++) {
- LCD.write(
- ( ( (j+1) & 0x01 ) << 7 )|
- ( ( (j+1) & 0x02 ) << 5 )|
- ( ( (j+1) & 0x04 ) << 3 )|
- ( ( (j+1) & 0x08 ) << 1 )|
- ( ( (j+1) & 0x10 ) >> 1 )|
- ( ( (j+1) & 0x20 ) >> 3 )|
- ( ( (j+1) & 0x40 ) >> 5 )|
- ( ( (j+1) & 0x80 ) >> 7 )
- );
-
- for(int i=0; i<50; i++) {
-// LCD.write(0xf0);
- LCD.write(hogepic[50*j+i]);
- }
- LCD.write(0x00);
- LCD.write(0x00);
+
+ while(1) {
+ for(int i=0;i<240;i++){
+ LCD.updateMulti(i,(240-i),(uint8_t*)(hogepic));
+ LCD.updateMulti(0,(i),(uint8_t*)(hogepic+50*(240-i)));
}
- wait_us(2);
- CS=0;
-*/
- while(1) {
- myled = 1;
+/* myled = 1;
wait(0.2);
myled = 0;
- wait(0.2);
+ wait(0.2);*/
}
}