Revision 0:c2f29cde2516, committed 2015-02-25

Comitter:

tomvdb

Date:

Wed Feb 25 11:23:47 2015 +0000

Commit message:

basic example - bit banging the lcd

Changed in this revision

diff -r 000000000000 -r c2f29cde2516 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Feb 25 11:23:47 2015 +0000
@@ -0,0 +1,277 @@
+#include "mbed.h"
+
+/*
+1 vcc - 3v3
+2 gnd - gnd
+3 sce - A0
+4 rst - A1
+5 d/c - A2
+6 dn - A3
+7 sclk - A4
+8 led - 3v3
+*/
+
+DigitalOut LCD_PIN_CLOCK(A4); //sclk
+DigitalOut LCD_PIN_DATA(A3); // dn
+DigitalOut LCD_PIN_COMMAND(A2); // d/c
+DigitalOut LCD_PIN_RESET(A1); // rst
+DigitalOut LCD_PIN_ENABLE(A0); // sce
+
+#define LCD_CMD             0
+#define LCD_DATA            1
+
+static const uint8_t ASCII[][5] =
+{
+ {0x00, 0x00, 0x00, 0x00, 0x00} // 20  
+,{0x00, 0x00, 0x5f, 0x00, 0x00} // 21 !
+,{0x00, 0x07, 0x00, 0x07, 0x00} // 22 "
+,{0x14, 0x7f, 0x14, 0x7f, 0x14} // 23 #
+,{0x24, 0x2a, 0x7f, 0x2a, 0x12} // 24 $
+,{0x23, 0x13, 0x08, 0x64, 0x62} // 25 %
+,{0x36, 0x49, 0x55, 0x22, 0x50} // 26 &
+,{0x00, 0x05, 0x03, 0x00, 0x00} // 27 '
+,{0x00, 0x1c, 0x22, 0x41, 0x00} // 28 (
+,{0x00, 0x41, 0x22, 0x1c, 0x00} // 29 )
+,{0x14, 0x08, 0x3e, 0x08, 0x14} // 2a *
+,{0x08, 0x08, 0x3e, 0x08, 0x08} // 2b +
+,{0x00, 0x50, 0x30, 0x00, 0x00} // 2c ,
+,{0x08, 0x08, 0x08, 0x08, 0x08} // 2d -
+,{0x00, 0x60, 0x60, 0x00, 0x00} // 2e .
+,{0x20, 0x10, 0x08, 0x04, 0x02} // 2f /
+,{0x3e, 0x51, 0x49, 0x45, 0x3e} // 30 0
+,{0x00, 0x42, 0x7f, 0x40, 0x00} // 31 1
+,{0x42, 0x61, 0x51, 0x49, 0x46} // 32 2
+,{0x21, 0x41, 0x45, 0x4b, 0x31} // 33 3
+,{0x18, 0x14, 0x12, 0x7f, 0x10} // 34 4
+,{0x27, 0x45, 0x45, 0x45, 0x39} // 35 5
+,{0x3c, 0x4a, 0x49, 0x49, 0x30} // 36 6
+,{0x01, 0x71, 0x09, 0x05, 0x03} // 37 7
+,{0x36, 0x49, 0x49, 0x49, 0x36} // 38 8
+,{0x06, 0x49, 0x49, 0x29, 0x1e} // 39 9
+,{0x00, 0x36, 0x36, 0x00, 0x00} // 3a :
+,{0x00, 0x56, 0x36, 0x00, 0x00} // 3b ;
+,{0x08, 0x14, 0x22, 0x41, 0x00} // 3c <
+,{0x14, 0x14, 0x14, 0x14, 0x14} // 3d =
+,{0x00, 0x41, 0x22, 0x14, 0x08} // 3e >
+,{0x02, 0x01, 0x51, 0x09, 0x06} // 3f ?
+,{0x32, 0x49, 0x79, 0x41, 0x3e} // 40 @
+,{0x7e, 0x11, 0x11, 0x11, 0x7e} // 41 A
+,{0x7f, 0x49, 0x49, 0x49, 0x36} // 42 B
+,{0x3e, 0x41, 0x41, 0x41, 0x22} // 43 C
+,{0x7f, 0x41, 0x41, 0x22, 0x1c} // 44 D
+,{0x7f, 0x49, 0x49, 0x49, 0x41} // 45 E
+,{0x7f, 0x09, 0x09, 0x09, 0x01} // 46 F
+,{0x3e, 0x41, 0x49, 0x49, 0x7a} // 47 G
+,{0x7f, 0x08, 0x08, 0x08, 0x7f} // 48 H
+,{0x00, 0x41, 0x7f, 0x41, 0x00} // 49 I
+,{0x20, 0x40, 0x41, 0x3f, 0x01} // 4a J
+,{0x7f, 0x08, 0x14, 0x22, 0x41} // 4b K
+,{0x7f, 0x40, 0x40, 0x40, 0x40} // 4c L
+,{0x7f, 0x02, 0x0c, 0x02, 0x7f} // 4d M
+,{0x7f, 0x04, 0x08, 0x10, 0x7f} // 4e N
+,{0x3e, 0x41, 0x41, 0x41, 0x3e} // 4f O
+,{0x7f, 0x09, 0x09, 0x09, 0x06} // 50 P
+,{0x3e, 0x41, 0x51, 0x21, 0x5e} // 51 Q
+,{0x7f, 0x09, 0x19, 0x29, 0x46} // 52 R
+,{0x46, 0x49, 0x49, 0x49, 0x31} // 53 S
+,{0x01, 0x01, 0x7f, 0x01, 0x01} // 54 T
+,{0x3f, 0x40, 0x40, 0x40, 0x3f} // 55 U
+,{0x1f, 0x20, 0x40, 0x20, 0x1f} // 56 V
+,{0x3f, 0x40, 0x38, 0x40, 0x3f} // 57 W
+,{0x63, 0x14, 0x08, 0x14, 0x63} // 58 X
+,{0x07, 0x08, 0x70, 0x08, 0x07} // 59 Y
+,{0x61, 0x51, 0x49, 0x45, 0x43} // 5a Z
+,{0x00, 0x7f, 0x41, 0x41, 0x00} // 5b [
+,{0x02, 0x04, 0x08, 0x10, 0x20} // 5c ¥
+,{0x00, 0x41, 0x41, 0x7f, 0x00} // 5d ]
+,{0x04, 0x02, 0x01, 0x02, 0x04} // 5e ^
+,{0x40, 0x40, 0x40, 0x40, 0x40} // 5f _
+,{0x00, 0x01, 0x02, 0x04, 0x00} // 60 `
+,{0x20, 0x54, 0x54, 0x54, 0x78} // 61 a
+,{0x7f, 0x48, 0x44, 0x44, 0x38} // 62 b
+,{0x38, 0x44, 0x44, 0x44, 0x20} // 63 c
+,{0x38, 0x44, 0x44, 0x48, 0x7f} // 64 d
+,{0x38, 0x54, 0x54, 0x54, 0x18} // 65 e
+,{0x08, 0x7e, 0x09, 0x01, 0x02} // 66 f
+,{0x0c, 0x52, 0x52, 0x52, 0x3e} // 67 g
+,{0x7f, 0x08, 0x04, 0x04, 0x78} // 68 h
+,{0x00, 0x44, 0x7d, 0x40, 0x00} // 69 i
+,{0x20, 0x40, 0x44, 0x3d, 0x00} // 6a j 
+,{0x7f, 0x10, 0x28, 0x44, 0x00} // 6b k
+,{0x00, 0x41, 0x7f, 0x40, 0x00} // 6c l
+,{0x7c, 0x04, 0x18, 0x04, 0x78} // 6d m
+,{0x7c, 0x08, 0x04, 0x04, 0x78} // 6e n
+,{0x38, 0x44, 0x44, 0x44, 0x38} // 6f o
+,{0x7c, 0x14, 0x14, 0x14, 0x08} // 70 p
+,{0x08, 0x14, 0x14, 0x18, 0x7c} // 71 q
+,{0x7c, 0x08, 0x04, 0x04, 0x08} // 72 r
+,{0x48, 0x54, 0x54, 0x54, 0x20} // 73 s
+,{0x04, 0x3f, 0x44, 0x40, 0x20} // 74 t
+,{0x3c, 0x40, 0x40, 0x20, 0x7c} // 75 u
+,{0x1c, 0x20, 0x40, 0x20, 0x1c} // 76 v
+,{0x3c, 0x40, 0x30, 0x40, 0x3c} // 77 w
+,{0x44, 0x28, 0x10, 0x28, 0x44} // 78 x
+,{0x0c, 0x50, 0x50, 0x50, 0x3c} // 79 y
+,{0x44, 0x64, 0x54, 0x4c, 0x44} // 7a z
+,{0x00, 0x08, 0x36, 0x41, 0x00} // 7b {
+,{0x00, 0x00, 0x7f, 0x00, 0x00} // 7c |
+,{0x00, 0x41, 0x36, 0x08, 0x00} // 7d }
+,{0x10, 0x08, 0x08, 0x10, 0x08} // 7e ←
+,{0x00, 0x06, 0x09, 0x09, 0x06} // 7f →
+};
+
+static uint8_t bender [] = {
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF8,
+0xFC, 0xFF, 0xDF, 0xAF, 0x55, 0x80, 0x55, 0x00, 0x55, 0x00, 0x55, 0x00, 0x55, 0x00, 0x55, 0x00,
+0x55, 0x00, 0x55, 0x00, 0x55, 0x80, 0xD5, 0x80, 0xD5, 0xE0, 0xF5, 0x60, 0x75, 0x70, 0x75, 0x60,
+0x75, 0xE0, 0xD5, 0x80, 0xD5, 0x00, 0x55, 0x00, 0x55, 0x00, 0x57, 0x07, 0x5E, 0x3C, 0x70, 0xF0,
+0xE0, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x03, 0x5F, 0xFF, 0xFF, 0xFF, 0xD7, 0xEE, 0xD5, 0xE8, 0xD5, 0xA0, 0xD5, 0x80,
+0xD5, 0xC0, 0xF5, 0xE0, 0xBD, 0xF8, 0xDF, 0xEE, 0x7F, 0x3B, 0x3F, 0x0F, 0x0F, 0x06, 0x06, 0x06,
+0x06, 0x06, 0x0C, 0x0C, 0x38, 0x38, 0xF1, 0xC1, 0xC3, 0x07, 0x07, 0x3C, 0x3D, 0xF8, 0xF5, 0xC0,
+0x55, 0x00, 0x55, 0x00, 0x55, 0x03, 0x57, 0x1E, 0x7C, 0xF0, 0xE0, 0xC0, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0xC7, 0xFF, 0xFD, 0x7A,
+0xDD, 0xFE, 0xFF, 0x77, 0x7F, 0x3C, 0x7E, 0x3F, 0x3F, 0x3F, 0x7F, 0xFF, 0x80, 0x80, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x0F, 0x8F, 0xC4, 0xE0, 0x7D, 0x3F, 0x1F, 0x00, 0x00, 0x00,
+0x80, 0x80, 0xE1, 0xE7, 0x7F, 0x3E, 0x55, 0x00, 0x55, 0x00, 0x55, 0x00, 0x55, 0x00, 0x55, 0x01,
+0x57, 0x0F, 0x5C, 0x78, 0x70, 0xE0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0xE0, 0xF0, 0xBC, 0xDF, 0xEF,
+0xF7, 0xFF, 0xFF, 0xFF, 0x47, 0x03, 0x01, 0x00, 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xE0, 0x00, 0x01,
+0x07, 0x07, 0x0E, 0xCC, 0xCC, 0xFC, 0x7C, 0x3C, 0x1C, 0x0E, 0x07, 0x83, 0xC1, 0xE0, 0x70, 0x30,
+0x78, 0x1C, 0x5C, 0x0F, 0x57, 0x03, 0xD5, 0xC0, 0xD5, 0xE0, 0x75, 0x30, 0x35, 0xB8, 0xDD, 0xF8,
+0xFD, 0xF8, 0xFD, 0xB8, 0x35, 0x30, 0xF5, 0xC0, 0xD5, 0x03, 0x57, 0x0F, 0x5F, 0xBC, 0xF0, 0xF0,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0xFF,
+0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xFC, 0xF8, 0xF0, 0xF0, 0xF0, 0xE1,
+0xF1, 0xF0, 0x78, 0xB8, 0x5E, 0x2E, 0x57, 0x81, 0xD1, 0xE8, 0xF4, 0xB8, 0xFC, 0xBE, 0x77, 0xA3,
+0x55, 0x80, 0xD5, 0xC0, 0xF5, 0x78, 0x3D, 0xBE, 0xFF, 0xE6, 0xF3, 0xF9, 0x1D, 0x0D, 0x07, 0x07,
+0x0F, 0xF9, 0xF9, 0xF0, 0xF0, 0xB8, 0x19, 0x1F, 0xC6, 0xCE, 0xFB, 0xFB, 0x7F, 0xE8, 0xF5, 0xFE,
+0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x07, 0x0F, 0x1F, 0x1F, 0x1F, 0x3B, 0x77, 0x7F, 0x7F, 0x6F, 0x7F, 0x7F,
+0x7F, 0x3F, 0x3F, 0x3B, 0x1D, 0x1C, 0x1D, 0x1E, 0x1F, 0x0E, 0x1F, 0x0F, 0x1F, 0x3F, 0x7D, 0xEE,
+0xFF, 0xFE, 0xF7, 0xEA, 0x7F, 0x7F, 0x7F, 0x3F, 0x1F, 0x1E, 0x7F, 0xE3, 0xC1, 0xE0, 0xF1, 0x73,
+0x1F, 0x1E, 0x9F, 0xFB, 0xF3, 0x60, 0x70, 0xFC, 0xDD, 0xEF, 0xD7, 0xE3, 0xD7, 0xE1, 0xD5, 0xF8,
+0xFD, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 
+};
+
+void lcdWrite(uint8_t dataOrCommand, uint8_t value)
+{
+  if (dataOrCommand)
+    LCD_PIN_COMMAND = 1;
+  else
+    LCD_PIN_COMMAND = 0;
+
+  LCD_PIN_ENABLE = 0;
+
+  int i;
+  for (i = 0; i < 8; i++)
+  {
+    LCD_PIN_CLOCK = 0;
+    if (value & 0x80)
+      LCD_PIN_DATA = 1;
+    else
+      LCD_PIN_DATA = 0;
+    value <<= 1;
+    LCD_PIN_CLOCK=1;
+
+  }
+
+  LCD_PIN_ENABLE = 1;
+}
+
+void lcdBender(void)
+{
+  for ( int i = 0; i < ( 84 * 48 ) / 8; i++)
+  {
+    lcdWrite(LCD_DATA, bender[i]);
+  }
+}
+
+void lcdInit()
+{
+    // Reset LCD
+  
+  LCD_PIN_RESET = 1;
+  wait_ms(10);
+  LCD_PIN_RESET = 0;
+  wait_ms(10);
+  LCD_PIN_RESET = 1;
+
+  // Initialize LCD state
+  lcdWrite(LCD_CMD, 0x21); // LCD Extended Commands.
+  lcdWrite(LCD_CMD, 0xB1); // Set LCD Vop (Contrast).
+  lcdWrite(LCD_CMD, 0x04); // Set Temp coefficent.
+  lcdWrite(LCD_CMD, 0x15); // LCD bias mode
+  lcdWrite(LCD_CMD, 0x20);
+  lcdWrite(LCD_CMD, 0x0C); // LCD in normal mode.    
+}
+
+void lcdXY( uint8_t x, uint8_t y)
+{
+  lcdWrite( 0, 0x80 | x);
+  lcdWrite( 0, 0x40 | y);
+}
+
+void lcdChar(char ch)
+{
+  lcdWrite( LCD_DATA, 0x00);
+  for ( int i = 0; i < 5; i++)
+  {
+    lcdWrite(LCD_DATA, ASCII[ch - 0x20][i]);
+  }
+  lcdWrite( LCD_DATA, 0x00);
+}
+
+void lcdGlyph( uint8_t glyph[] )
+{
+  lcdWrite( LCD_DATA, 0x00);
+  for ( int i = 0; i < 5; i++)
+  {
+    lcdWrite(LCD_DATA, glyph[i]);
+  }
+  lcdWrite( LCD_DATA, 0x00);  
+}
+
+void lcdClear(void)
+{
+  for ( int i = 0; i < ( 84 * 48 ) / 8; i++)
+  {
+    lcdWrite(LCD_DATA, 0x00);
+  }
+}
+
+void lcdStr( char *msg )
+{
+  while (*msg)
+  {
+    lcdChar(*msg++);
+  }
+}
+
+//------------------------------------
+// Hyperterminal configuration
+// 9600 bauds, 8-bit data, no parity
+//------------------------------------
+
+Serial pc(SERIAL_TX, SERIAL_RX);
+ 
+DigitalOut myled(LED1);
+ 
+int main() {
+  
+  lcdInit();
+  
+  lcdClear();
+  lcdXY(0,0);
+  lcdBender();  
+  
+ // lcdXY( 1, 2 );
+//  lcdStr( "Hello World");
+  
+  while(1) { 
+      wait(1);
+      myled = !myled;
+  }
+}
+ 
\ No newline at end of file

diff -r 000000000000 -r c2f29cde2516 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Feb 25 11:23:47 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/9ad691361fac
\ No newline at end of file