Revision 0:2ea3272d3c5a, committed 2014-01-12

Comitter:

shinbo

Date:

Sun Jan 12 17:37:47 2014 +0000

Commit message:

ST7567 SPI FSTN 2bit color LCD demo; product:; // http://www.aitendo.com/product/5440; // FSTN LCD(128x64/SPI) [C128X64SPI-12P];

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Jan 12 17:37:47 2014 +0000
@@ -0,0 +1,93 @@
+#include "mbed.h"
+
+// http://www.aitendo.com/product/5440
+// FSTN LCD(128x64/SPI) [C128X64SPI-12P]
+// 2bit color
+
+
+
+#define SCREEN_WIDTH    128
+#define SCREEN_HEIGHT   64
+#define PAGE_SEL        0xB0
+#define COL_SEL      0x10
+
+SPI spi(p5, p6, p7);        // mosi, miso, sclk
+DigitalOut pin_cs0(p8);
+DigitalOut pin_a0(p9);
+DigitalOut pin_rst(p10);
+
+
+void spi_write_cmd(unsigned char cmd) {
+    pin_cs0 = 0;
+    pin_a0  = 0;
+    spi.write(cmd);
+    pin_cs0 = 1;
+}
+
+void spi_write_dat(unsigned char dat) {
+    pin_cs0 = 0;
+    pin_a0  = 1;
+    spi.write(dat);
+    pin_cs0 = 1;
+}
+
+void init() {
+    spi.format(8, 3);           // 8bit, mode3
+    spi.frequency(1000000);     // 1MHz:default
+    
+    // http://aitendo3.sakura.ne.jp/aitendo_data/product_img/lcd/fstn/COG128X64SPI-12P/st7567_init_code.txt
+    // http://aitendo3.sakura.ne.jp/aitendo_data/product_img/lcd/fstn/COG128X64SPI-12P/st7567_demo_code.txt
+    pin_rst = 0;
+    wait_ms(100);
+    pin_rst = 1;
+    
+    spi_write_cmd(0xE2);            // S/W RESWT
+    spi_write_cmd(0xA3);            // LCD bias
+    spi_write_cmd(0xAF);            // Display ON
+    spi_write_cmd(0xA0);            // segment direction.
+    spi_write_cmd(0xC8);            // Common Direction.
+    spi_write_cmd(0x22);            // Regultion resistor select  //25
+    spi_write_cmd(0x81);            // EV Select.
+    spi_write_cmd(0x2f);            // Select EV value.
+    spi_write_cmd(0x2f);            // Power control
+    
+    spi_write_cmd(0x40);            // Initial display line 40
+    spi_write_cmd(0xB0);            // Set page address
+    spi_write_cmd(0x10);            // Set coloumn addr  MSB
+    spi_write_cmd(0x00);            // Set coloumn addr LSB
+    spi_write_cmd(0xAF);            // Display ON
+    spi_write_cmd(0xA4);            // A5 .Normal display, all pixels OFF.
+    spi_write_cmd(0xA6);            // A7 .Normal display (Inverse Pixel)       
+}
+
+void glcd_set_pixel(int x, int y, int ptn) {
+
+    int page;
+    
+    page = y / 8;
+    
+    /* Selecting Page */
+    spi_write_cmd(PAGE_SEL | page);
+    
+    /* Selecting Column */
+    spi_write_cmd(COL_SEL | ((x & 0xF0) >> 4));
+    spi_write_cmd(            x & 0x0F);
+    
+    spi_write_dat(ptn);
+}
+
+int main() {
+    init();
+    
+    for (int iii = 0; iii < SCREEN_WIDTH; iii++) {
+        for (int jjj = 0; jjj < SCREEN_HEIGHT; jjj += 8) {
+            int ptn = 0;
+            for (int ttt = 0; ttt < (iii + (jjj / 4)) % 8; ttt++) {
+                ptn = (ptn << 1) | 1;
+            }
+            glcd_set_pixel(iii, jjj, (ptn & 0xff));
+        }
+    }
+    
+    return 0;
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sun Jan 12 17:37:47 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/a9913a65894f
\ No newline at end of file