Jonathan Gaul
A buffered display driver for the SSD1306 OLED controller. Please note that this is a work-in-progress; only very rudimentary drawing support is provided.
Dependents: Projetv0 greenhouse_proj ProjetLong_Serre_V3 ProjetLong_Serre_V3_1 ... more
Example of use:
#include "mbed.h"
#include "ssd1306.h"
#include "standard_font.h"
#include "bold_font.h"
SSD1306 oled(p8 /* cs */, p9 /* reset */, p14 /* dc */,
p13 /* clock */, p11 /* data */);
int main()
{
oled.initialise();
oled.clear();
oled.set_contrast(255); // max contrast
oled.set_font(bold_font, 8);
oled.printf("Heading\r\n");
oled.set_font(standard_font, 6);
oled.printf("Hello World!\r\n");
oled.printf("Some more text here...");
oled.update();
while (1)
{
wait(2);
oled.scroll_up();
oled.update();
}
}
Revision 3:1d9df877c90a, committed 2013-02-09
- Comitter:
- Byrn
- Date:
- Sat Feb 09 16:43:49 2013 +0000
- Parent:
- 2:e479b0296757
- Commit message:
- Completely changed the way fonts work and added printf(), putc() etc. Now only 8 pixel high fonts are supported, but multiple widths. Added auto-scrolling from the bottom of the display. Also replaced the original "smallfont" with two new fonts.
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/bold_font.h Sat Feb 09 16:43:49 2013 +0000
@@ -0,0 +1,109 @@
+/** Thick 8x8 font, good for headings etc. */
+static unsigned char bold_font[] = {
+
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x20] ' '
+ 0x0, 0x0, 0x0, 0xDF, 0xDF, 0x0, 0x0, 0x0, // [0x21] '!'
+ 0x0, 0x3, 0x7, 0x0, 0x3, 0x7, 0x0, 0x0, // [0x22] '"'
+ 0x0, 0x14, 0x3E, 0x14, 0x3E, 0x14, 0x0, 0x0, // [0x23] '#'
+ 0x0, 0x24, 0x2A, 0x7F, 0x2A, 0x12, 0x0, 0x0, // [0x24] '$'
+ 0x43, 0x23, 0x10, 0x8, 0x4, 0x62, 0x61, 0x0, // [0x25] '%'
+ 0x38, 0x7C, 0x44, 0x7F, 0x3F, 0x4, 0x4, 0x0, // [0x26] '&'
+ 0x0, 0x0, 0x0, 0x7, 0x7, 0x0, 0x0, 0x0, // [0x27] '''
+ 0x0, 0x0, 0x7E, 0xFF, 0x81, 0x0, 0x0, 0x0, // [0x28] '('
+ 0x0, 0x0, 0x81, 0xFF, 0x7E, 0x0, 0x0, 0x0, // [0x29] ')'
+ 0x8, 0x2A, 0x1C, 0x7F, 0x1C, 0x2A, 0x8, 0x0, // [0x2A] '*'
+ 0x0, 0x8, 0x8, 0x3E, 0x3E, 0x8, 0x8, 0x0, // [0x2B] '+'
+ 0x0, 0x0, 0x80, 0xE0, 0x60, 0x0, 0x0, 0x0, // [0x2C] ','
+ 0x0, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x0, // [0x2D] '-'
+ 0x0, 0x0, 0x0, 0xC0, 0xC0, 0x0, 0x0, 0x0, // [0x2E] '.'
+ 0x0, 0xC0, 0xF0, 0x3C, 0xF, 0x3, 0x0, 0x0, // [0x2F] '/'
+ 0x3E, 0x7F, 0x51, 0x49, 0x45, 0x7F, 0x3E, 0x0, // [0x30] '0'
+ 0x0, 0x40, 0x42, 0x7F, 0x7F, 0x40, 0x40, 0x0, // [0x31] '1'
+ 0x72, 0x7B, 0x49, 0x49, 0x49, 0x4F, 0x46, 0x0, // [0x32] '2'
+ 0x22, 0x63, 0x41, 0x49, 0x49, 0x7F, 0x36, 0x0, // [0x33] '3'
+ 0x7, 0xF, 0x8, 0x8, 0x8, 0x7E, 0x7E, 0x0, // [0x34] '4'
+ 0x27, 0x6F, 0x49, 0x49, 0x49, 0x79, 0x31, 0x0, // [0x35] '5'
+ 0x3E, 0x7F, 0x49, 0x49, 0x49, 0x79, 0x30, 0x0, // [0x36] '6'
+ 0x1, 0x1, 0x1, 0x1, 0x1, 0x7F, 0x7E, 0x0, // [0x37] '7'
+ 0x36, 0x7F, 0x49, 0x49, 0x49, 0x7F, 0x36, 0x0, // [0x38] '8'
+ 0x6, 0xF, 0x9, 0x9, 0x9, 0x7F, 0x7F, 0x0, // [0x39] '9'
+ 0x0, 0x0, 0x0, 0x63, 0x63, 0x0, 0x0, 0x0, // [0x3A] ':'
+ 0x0, 0x0, 0x80, 0xE3, 0x63, 0x0, 0x0, 0x0, // [0x3B] ';'
+ 0x0, 0x8, 0x1C, 0x36, 0x63, 0x41, 0x0, 0x0, // [0x3C] '<'
+ 0x0, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x0, // [0x3D] '='
+ 0x0, 0x41, 0x63, 0x36, 0x1C, 0x8, 0x0, 0x0, // [0x3E] '>'
+ 0x2, 0x3, 0xD1, 0xD9, 0x9, 0xF, 0x6, 0x0, // [0x3F] '?'
+ 0x3E, 0x7F, 0x41, 0x5D, 0x55, 0x5F, 0xE, 0x0, // [0x40] '@'
+ 0x7E, 0x7F, 0x9, 0x9, 0x9, 0x7F, 0x7E, 0x0, // [0x41] 'A'
+ 0x7F, 0x7F, 0x49, 0x49, 0x49, 0x7F, 0x36, 0x0, // [0x42] 'B'
+ 0x3E, 0x7F, 0x41, 0x41, 0x41, 0x63, 0x22, 0x0, // [0x43] 'C'
+ 0x7F, 0x7F, 0x41, 0x41, 0x63, 0x3E, 0x1C, 0x0, // [0x44] 'D'
+ 0x7F, 0x7F, 0x49, 0x49, 0x49, 0x41, 0x41, 0x0, // [0x45] 'E'
+ 0x7F, 0x7F, 0x9, 0x9, 0x9, 0x1, 0x1, 0x0, // [0x46] 'F'
+ 0x3E, 0x7F, 0x41, 0x49, 0x49, 0x7B, 0x7A, 0x0, // [0x47] 'G'
+ 0x7F, 0x7F, 0x8, 0x8, 0x8, 0x7F, 0x7F, 0x0, // [0x48] 'H'
+ 0x0, 0x41, 0x41, 0x7F, 0x7F, 0x41, 0x41, 0x0, // [0x49] 'I'
+ 0x20, 0x61, 0x41, 0x7F, 0x3F, 0x1, 0x1, 0x0, // [0x4A] 'J'
+ 0x7F, 0x7F, 0x8, 0x1C, 0x36, 0x63, 0x41, 0x0, // [0x4B] 'K'
+ 0x7F, 0x7F, 0x40, 0x40, 0x40, 0x40, 0x40, 0x0, // [0x4C] 'L'
+ 0x7F, 0x7F, 0x6, 0xC, 0x6, 0x7F, 0x7F, 0x0, // [0x4D] 'M'
+ 0x7F, 0x7F, 0x6, 0xC, 0x18, 0x7F, 0x7F, 0x0, // [0x4E] 'N'
+ 0x3E, 0x7F, 0x41, 0x41, 0x41, 0x7F, 0x3E, 0x0, // [0x4F] 'O'
+ 0x7F, 0x7F, 0x9, 0x9, 0x9, 0xF, 0x6, 0x0, // [0x50] 'P'
+ 0x3E, 0x7F, 0x41, 0x61, 0xC1, 0xFF, 0xBE, 0x0, // [0x51] 'Q'
+ 0x7F, 0x7F, 0x9, 0x9, 0x9, 0x7F, 0x76, 0x0, // [0x52] 'R'
+ 0x26, 0x6F, 0x49, 0x49, 0x49, 0x7B, 0x32, 0x0, // [0x53] 'S'
+ 0x0, 0x1, 0x1, 0x7F, 0x7F, 0x1, 0x1, 0x0, // [0x54] 'T'
+ 0x3F, 0x7F, 0x40, 0x40, 0x40, 0x7F, 0x7F, 0x0, // [0x55] 'U'
+ 0x0, 0x7, 0x1F, 0x78, 0x78, 0x1F, 0x7, 0x0, // [0x56] 'V'
+ 0x7F, 0x7F, 0x30, 0x18, 0x30, 0x7F, 0x7F, 0x0, // [0x57] 'W'
+ 0x63, 0x77, 0x1C, 0x8, 0x1C, 0x77, 0x63, 0x0, // [0x58] 'X'
+ 0x27, 0x6F, 0x48, 0x48, 0x48, 0x7F, 0x3F, 0x0, // [0x59] 'Y'
+ 0x61, 0x71, 0x59, 0x4D, 0x47, 0x43, 0x41, 0x0, // [0x5A] 'Z'
+ 0x0, 0x0, 0xFF, 0xFF, 0x81, 0x81, 0x0, 0x0, // [0x5B] '['
+ 0x0, 0x3, 0xF, 0x3C, 0xF0, 0xC0, 0x0, 0x0, // [0x5C] '\\'
+ 0x0, 0x0, 0x81, 0x81, 0xFF, 0xFF, 0x0, 0x0, // [0x5D] ']'
+ 0x4, 0x6, 0x3, 0x1, 0x3, 0x6, 0x4, 0x0, // [0x5E] '^'
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x0, // [0x5F] '_'
+ 0x3, 0x7, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x60] '`'
+ 0x38, 0x7C, 0x44, 0x44, 0x24, 0x7C, 0x78, 0x0, // [0x61] 'a'
+ 0x7F, 0x7F, 0x24, 0x44, 0x44, 0x7C, 0x38, 0x0, // [0x62] 'b'
+ 0x38, 0x7C, 0x44, 0x44, 0x44, 0x44, 0x44, 0x0, // [0x63] 'c'
+ 0x38, 0x7C, 0x44, 0x44, 0x24, 0x7F, 0x7F, 0x0, // [0x64] 'd'
+ 0x38, 0x7C, 0x54, 0x54, 0x54, 0x5C, 0x8, 0x0, // [0x65] 'e'
+ 0x0, 0x4, 0x7E, 0x7F, 0x5, 0x1, 0x0, 0x0, // [0x66] 'f'
+ 0x18, 0xBC, 0xA4, 0xA4, 0x94, 0xFC, 0x78, 0x0, // [0x67] 'g'
+ 0x7F, 0x7F, 0x8, 0x4, 0x4, 0x7C, 0x78, 0x0, // [0x68] 'h'
+ 0x0, 0x0, 0x0, 0x7D, 0x7D, 0x0, 0x0, 0x0, // [0x69] 'i'
+ 0x0, 0x40, 0x40, 0x40, 0x7D, 0x3D, 0x0, 0x0, // [0x6A] 'j'
+ 0x7F, 0x7F, 0x8, 0x8, 0x1C, 0x76, 0x62, 0x0, // [0x6B] 'k'
+ 0x0, 0x0, 0x0, 0x7F, 0x7F, 0x0, 0x0, 0x0, // [0x6C] 'l'
+ 0x78, 0x7C, 0x18, 0x30, 0x18, 0x7C, 0x78, 0x0, // [0x6D] 'm'
+ 0x7C, 0x7C, 0x8, 0x4, 0x4, 0x7C, 0x78, 0x0, // [0x6E] 'n'
+ 0x38, 0x7C, 0x44, 0x44, 0x44, 0x7C, 0x38, 0x0, // [0x6F] 'o'
+ 0xFC, 0xFC, 0x28, 0x24, 0x24, 0x3C, 0x18, 0x0, // [0x70] 'p'
+ 0x1C, 0x1E, 0x22, 0x22, 0x12, 0xFE, 0xFE, 0x0, // [0x71] 'q'
+ 0x7C, 0x7C, 0x8, 0x4, 0x4, 0xC, 0x8, 0x0, // [0x72] 'r'
+ 0x48, 0x5C, 0x54, 0x54, 0x54, 0x74, 0x20, 0x0, // [0x73] 's'
+ 0x3F, 0x7F, 0x44, 0x44, 0x44, 0x60, 0x20, 0x0, // [0x74] 't'
+ 0x3C, 0x7C, 0x40, 0x40, 0x20, 0x7C, 0x7C, 0x0, // [0x75] 'u'
+ 0x0, 0xC, 0x3C, 0x70, 0x70, 0x3C, 0xC, 0x0, // [0x76] 'v'
+ 0x3C, 0x7C, 0x30, 0x18, 0x30, 0x7C, 0x3C, 0x0, // [0x77] 'w'
+ 0x44, 0x6C, 0x38, 0x10, 0x38, 0x6C, 0x44, 0x0, // [0x78] 'x'
+ 0xC, 0x5C, 0x50, 0x50, 0x50, 0x7C, 0x3C, 0x0, // [0x79] 'y'
+ 0x44, 0x64, 0x74, 0x54, 0x5C, 0x4C, 0x44, 0x0, // [0x7A] 'z'
+ 0x0, 0x8, 0x3E, 0x77, 0x41, 0x0, 0x0, 0x0, // [0x7B] '{'
+ 0x0, 0x0, 0x0, 0xFF, 0xFF, 0x0, 0x0, 0x0, // [0x7C] '|'
+ 0x0, 0x41, 0x77, 0x3E, 0x8, 0x0, 0x0, 0x0, // [0x7D] '}'
+ 0x2, 0x3, 0x1, 0x3, 0x2, 0x3, 0x1, 0x0, // [0x7E] '~'
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x7F] ''
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x80] ''
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x81] ''
+ 0x0, 0x0, 0x80, 0xE0, 0x60, 0x0, 0x0, 0x0, // [0x82] ''
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x83] ''
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x84] ''
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x85] '
'
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x86] ''
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x87] ''
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x88] ''
+};
--- a/smallfont.h Tue Feb 05 21:21:22 2013 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,103 +0,0 @@
-
-#ifndef __SMALLFONT_H__
-#define __SMALLFONT_H__
-
-static char smallfont[] = {
- 0x01, /* Height in bytes */
- 0x06, /* Widest char width (size of char data) */
-
- /*
- width,----------- data -----------------*/
- 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // ' ' (space)
- 0x02, 0x17, 0x00, 0x00, 0x00, 0x00, 0x00, // !
- 0x04, 0x03, 0x00, 0x03, 0x00, 0x00, 0x00, // "
- 0x06, 0x0A, 0x1F, 0x0A, 0x1F, 0x0A, 0x00, // #
- 0x06, 0x02, 0x15, 0x1F, 0x15, 0x08, 0x00, // $
- 0x06, 0x13, 0x09, 0x04, 0x12, 0x19, 0x00, // %
- 0x06, 0x08, 0x14, 0x0F, 0x04, 0x04, 0x00, // &
- 0x02, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, // '
- 0x03, 0x1E, 0x21, 0x00, 0x00, 0x00, 0x00, // (
- 0x03, 0x21, 0x1E, 0x00, 0x00, 0x00, 0x00, // )
- 0x06, 0x15, 0x0E, 0x1F, 0x0E, 0x15, 0x00, // *
- 0x04, 0x04, 0x0C, 0x04, 0x00, 0x00, 0x00, // +
- 0x03, 0x20, 0x10, 0x00, 0x00, 0x00, 0x00, // ,
- 0x04, 0x04, 0x04, 0x04, 0x00, 0x00, 0x00, // -
- 0x02, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, // .
- 0x06, 0x10, 0x08, 0x04, 0x02, 0x01, 0x00, // /
- 0x05, 0x0E, 0x11, 0x11, 0x0E, 0x00, 0x00, // 0
- 0x03, 0x02, 0x1F, 0x00, 0x00, 0x00, 0x00, // 1
- 0x05, 0x18, 0x15, 0x15, 0x12, 0x00, 0x00, // 2
- 0x05, 0x11, 0x15, 0x15, 0x0A, 0x00, 0x00, // 3
- 0x05, 0x0F, 0x08, 0x1E, 0x08, 0x00, 0x00, // 4
- 0x05, 0x17, 0x15, 0x15, 0x09, 0x00, 0x00, // 5
- 0x05, 0x0E, 0x15, 0x15, 0x08, 0x00, 0x00, // 6
- 0x05, 0x01, 0x11, 0x09, 0x07, 0x00, 0x00, // 7
- 0x05, 0x0A, 0x15, 0x15, 0x0A, 0x00, 0x00, // 8
- 0x05, 0x02, 0x05, 0x05, 0x1E, 0x00, 0x00, // 9
- 0x02, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, // :
- 0x03, 0x10, 0x0A, 0x00, 0x00, 0x00, 0x00, // ;
- 0x05, 0x04, 0x0A, 0x11, 0x00, 0x00, 0x00, // <
- 0x04, 0x0A, 0x0A, 0x0A, 0x00, 0x00, 0x00, // =
- 0x05, 0x11, 0x0A, 0x04, 0x00, 0x00, 0x00, // >
- 0x05, 0x01, 0x15, 0x05, 0x02, 0x00, 0x00, // ?
- 0x05, 0x0E, 0x11, 0x15, 0x02, 0x00, 0x00, // @
- 0x05, 0x1E, 0x09, 0x09, 0x1E, 0x00, 0x00, // A
- 0x05, 0x1F, 0x15, 0x15, 0x0A, 0x00, 0x00, // B
- 0x05, 0x0E, 0x11, 0x11, 0x10, 0x00, 0x00, // C
- 0x05, 0x1F, 0x11, 0x11, 0x0E, 0x00, 0x00, // D
- 0x05, 0x1F, 0x15, 0x15, 0x11, 0x00, 0x00, // E
- 0x05, 0x1F, 0x05, 0x05, 0x01, 0x00, 0x00, // F
- 0x05, 0x0E, 0x11, 0x15, 0x1C, 0x00, 0x00, // G
- 0x05, 0x1F, 0x04, 0x04, 0x1F, 0x00, 0x00, // H
- 0x04, 0x11, 0x1F, 0x11, 0x00, 0x00, 0x00, // I
- 0x05, 0x08, 0x11, 0x11, 0x0F, 0x00, 0x00, // J
- 0x05, 0x1F, 0x04, 0x0A, 0x11, 0x00, 0x00, // K
- 0x05, 0x1F, 0x10, 0x10, 0x10, 0x00, 0x00, // L
- 0x06, 0x1F, 0x02, 0x04, 0x02, 0x1F, 0x00, // M
- 0x05, 0x1F, 0x01, 0x01, 0x1E, 0x00, 0x00, // N
- 0x05, 0x0E, 0x11, 0x11, 0x0E, 0x00, 0x00, // O
- 0x05, 0x1F, 0x05, 0x05, 0x02, 0x00, 0x00, // P
- 0x06, 0x0E, 0x11, 0x19, 0x1E, 0x20, 0x00, // Q
- 0x05, 0x1F, 0x05, 0x05, 0x1A, 0x00, 0x00, // R
- 0x05, 0x12, 0x15, 0x15, 0x08, 0x00, 0x00, // S
- 0x04, 0x01, 0x1F, 0x01, 0x00, 0x00, 0x00, // T
- 0x05, 0x0F, 0x10, 0x10, 0x1F, 0x00, 0x00, // U
- 0x06, 0x07, 0x08, 0x10, 0x08, 0x07, 0x00, // V
- 0x06, 0x1F, 0x08, 0x04, 0x08, 0x1F, 0x00, // W
- 0x06, 0x11, 0x0A, 0x04, 0x0A, 0x11, 0x00, // X
- 0x05, 0x03, 0x14, 0x14, 0x0F, 0x00, 0x00, // Y
- 0x05, 0x19, 0x15, 0x13, 0x11, 0x00, 0x00, // Z
- 0x03, 0x3F, 0x21, 0x00, 0x00, 0x00, 0x00, // [
- 0x06, 0x01, 0x02, 0x04, 0x08, 0x10, 0x00, // \\
- 0x01, 0x3F, 0x00, 0x00, 0x00, 0x00, 0x00, // ?
- 0x03, 0x21, 0x3F, 0x00, 0x00, 0x00, 0x00, // ]
- 0x04, 0x02, 0x01, 0x02, 0x00, 0x00, 0x00, // ^
- 0x05, 0x20, 0x20, 0x20, 0x20, 0x00, 0x00, // _
- 0x03, 0x01, 0x02, 0x00, 0x00, 0x00, 0x00, // `
- 0x05, 0x0C, 0x12, 0x12, 0x1C, 0x00, 0x00, // a
- 0x05, 0x1F, 0x12, 0x12, 0x0C, 0x00, 0x00, // b
- 0x05, 0x0C, 0x12, 0x12, 0x12, 0x00, 0x00, // c
- 0x05, 0x0C, 0x12, 0x12, 0x1F, 0x00, 0x00, // d
- 0x05, 0x0E, 0x15, 0x15, 0x02, 0x00, 0x00, // e
- 0x05, 0x04, 0x3E, 0x05, 0x01, 0x00, 0x00, // f
- 0x05, 0x0C, 0x2A, 0x2A, 0x1E, 0x00, 0x00, // g
- 0x05, 0x1F, 0x02, 0x02, 0x1A, 0x00, 0x00, // h
- 0x02, 0x1D, 0x00, 0x00, 0x00, 0x00, 0x00, // i
- 0x04, 0x20, 0x20, 0x1D, 0x00, 0x00, 0x00, // j
- 0x04, 0x1F, 0x04, 0x1A, 0x00, 0x00, 0x00, // k
- 0x02, 0x1F, 0x00, 0x00, 0x00, 0x00, 0x00, // l
- 0x06, 0x1C, 0x02, 0x0C, 0x02, 0x1C, 0x00, // m
- 0x05, 0x1E, 0x02, 0x02, 0x1C, 0x00, 0x00, // n
- 0x05, 0x0C, 0x12, 0x12, 0x0C, 0x00, 0x00, // o
- 0x05, 0x3E, 0x12, 0x12, 0x0C, 0x00, 0x00, // p
- 0x05, 0x0C, 0x12, 0x12, 0x3E, 0x00, 0x00, // q
- 0x05, 0x1C, 0x02, 0x02, 0x00, 0x00, 0x00, // r
- 0x05, 0x12, 0x15, 0x15, 0x08, 0x00, 0x00, // s
- 0x05, 0x02, 0x0F, 0x12, 0x02, 0x00, 0x00, // t
- 0x05, 0x0E, 0x10, 0x10, 0x1F, 0x00, 0x00, // u
- 0x04, 0x0C, 0x10, 0x0C, 0x00, 0x00, 0x00, // v
- 0x06, 0x0C, 0x10, 0x0A, 0x10, 0x0C, 0x00, // w
- 0x05, 0x12, 0x0C, 0x0C, 0x12, 0x00, 0x00, // x
-};
-
-#endif
--- a/ssd1306.cpp Tue Feb 05 21:21:22 2013 +0000
+++ b/ssd1306.cpp Sat Feb 09 16:43:49 2013 +0000
@@ -2,11 +2,15 @@
#include "mbed.h"
#include "ssd1306.h"
+#include <stdarg.h>
+
SSD1306::SSD1306(PinName cs, PinName rs, PinName dc, PinName clk, PinName data)
: _spi(data, NC, clk),
_cs(cs),
_reset(rs),
- _dc(dc)
+ _dc(dc),
+ _cursor_x(0),
+ _cursor_y(0)
{
}
@@ -211,7 +215,7 @@
set_display_offset(0);
set_display_start_line(0);
set_charge_pump_enable(1);
- set_memory_addressing_mode(0); // horizontal addressing mode
+ set_memory_addressing_mode(0); // horizontal addressing mode; across then down
set_segment_remap(1);
set_com_output_scan_direction(1);
set_com_pins_hardware_configuration(1, 0);
@@ -294,32 +298,95 @@
}
}
-void SSD1306::draw_string(char *font, int x, int y, const char *string)
+void SSD1306::set_font(unsigned char *font, unsigned int width)
{
- _cursor_x = x;
- _cursor_y = y;
-
- for (int i = 0; i < strlen(string); i++)
- draw_char(font, _cursor_x, _cursor_y, string[i]);
+ _console_font_data = font;
+ _console_font_width = width;
+}
+
+void SSD1306::set_double_height_text(unsigned int double_height)
+{
+ _double_height_text = double_height;
}
-void SSD1306::draw_char(char *font, int x, int y, char c)
+void SSD1306::putc(unsigned char c)
{
- int height = font[FONT_HEIGHT_OFFSET];
- int max_width = font[FONT_SIZE_OFFSET];
- int char_size_bytes = max_width * height + 1;
- int char_width = font[(c - FONT_START) * char_size_bytes + FONT_DATA_OFFSET];
- for (int i = 0; i < char_width; i++)
- _screen[(x + i) + (y * SSD1306_LCDWIDTH)] = font[(c - FONT_START) * (char_size_bytes) + i + FONT_DATA_OFFSET + 1];
+ while (_cursor_x >= (128 / _console_font_width))
+ {
+ _cursor_x -= (128 / _console_font_width);
+ _cursor_y++;
+ }
+
+ while (_cursor_y > 7)
+ {
+ scroll_up();
+ }
+
+ switch (c)
+ {
+ case '\n':
+ _cursor_y++;
+ break;
+
+ case '\r':
+ _cursor_x = 0;
+ break;
+
+ case '\t':
+ _cursor_x = (_cursor_x + 4) % 4;
+ break;
+
+ default:
+ for (int b = 0; b < _console_font_width; b++)
+ {
+ _screen[_cursor_x * _console_font_width + _cursor_y * 128 + b] = _console_font_data[(c - FONT_START) * _console_font_width + b];
+ }
+
+ _cursor_x++;
+ }
+}
+
+void SSD1306::scroll_up()
+{
+ for (int y = 1; y <= 7; y++)
+ {
+ for (int x = 0; x < 128; x++)
+ {
+ _screen[x + 128 * (y - 1)] = _screen[x + 128 * y];
+ }
+ }
- _cursor_x = x + char_width;
- _cursor_y = y;
+ for (int x = 0; x < 128; x++)
+ {
+ _screen[x + 128 * 7] = 0;
+ }
+
+ _cursor_y--;
+}
+
+void SSD1306::printf(const char *format, ...)
+{
+ static char buffer[128];
+
+ va_list args;
+ va_start(args, format);
+ vsprintf(buffer, format, args);
+ va_end(args);
+
+ char *c = (char *)&buffer;
+ while (*c != 0)
+ {
+ putc(*c++);
+ }
}
void SSD1306::clear()
{
for (int i = 0; i < 1024; i++)
_screen[i] = 0;
+
+ _cursor_x = 0;
+ _cursor_y = 0;
}
void SSD1306::_send_command(unsigned char code)
--- a/ssd1306.h Tue Feb 05 21:21:22 2013 +0000
+++ b/ssd1306.h Sat Feb 09 16:43:49 2013 +0000
@@ -1,16 +1,22 @@
#ifndef __SSD1306_H__
#define __SSD1306_H__
-#define FONT_HEIGHT_OFFSET 0 /* Character pixel height (in multiples of 8) at this position */
-#define FONT_SIZE_OFFSET 1 /* Character data size (in bytes) at this position */
-#define FONT_DATA_OFFSET 2 /* Data starts at this position */
#define FONT_START ' ' /* First character value in the font table */
/** SSD1306 Controller Driver
- *
- * Information taken from the datasheet at:
- * http://www.adafruit.com/datasheets/SSD1306.pdf
- */
+ *
+ * This class provides a buffered display for the SSD1306 OLED controller.
+ *
+ * TODO:
+ * - At the moment, the driver assumes a 128x64 pixel display.
+ * - Only fonts of 8 pixel height are supported (different widths can be used).
+ * - Pretty much no drawing functions are provided as yet.
+ * - Possible "auto-update", automatically calling update() after a printf etc.
+ *
+ * Information taken from the datasheet at:
+ * http://www.adafruit.com/datasheets/SSD1306.pdf
+ *
+ */
class SSD1306
{
public:
@@ -180,8 +186,34 @@
void clear_pixel(int x, int y);
void line(int x0, int y0, int x1, int y1);
- void draw_string(char *font, int x, int y, const char *string);
- void draw_char(char *font, int x, int y, char c);
+ /** Set the current console font.
+ * @param font Font data, layed out vertically!
+ * @param width Width of the font characters in pixels.
+ * Fonts are always (at present) 8 pixels in height.
+ */
+ void set_font(unsigned char *font, unsigned int width);
+
+ /** Set double height text output.
+ * @param double_height If 1, calls to putc(), printf() etc will
+ * result in text taking up 2 lines instead of 1.
+ */
+ void set_double_height_text(unsigned int double_height);
+
+ /** Put a single character to the screen buffer.
+ * Repeated calls to putc() will cause the cursor to move across and
+ * then down as needed, with scrolling.
+ * @param c The character to write.
+ */
+ void putc(unsigned char c);
+
+ /** Print to the screen buffer.
+ * printf() will wrap and scroll the screen as needed to display the text given.
+ * @param format Format specifier, same as printf() in normal C.
+ */
+ void printf(const char *format, ...);
+
+ /** Scroll the screen buffer up by one line. */
+ void scroll_up();
private:
SPI _spi;
@@ -192,6 +224,10 @@
void _send_command(unsigned char code);
void _send_data(unsigned char value);
+
+ unsigned char *_console_font_data;
+ unsigned int _console_font_width;
+ unsigned int _double_height_text;
};
#define SSD1306_LCDWIDTH 128
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/standard_font.h Sat Feb 09 16:43:49 2013 +0000
@@ -0,0 +1,112 @@
+/** Thin 5x8 font. */
+static unsigned char standard_font[] = {
+
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x20] ' '
+ 0x0, 0x0, 0x2F, 0x0, 0x0, 0x0, // [0x21] '!'
+ 0x0, 0x3, 0x0, 0x3, 0x0, 0x0, // [0x22] '"'
+ 0x14, 0x3E, 0x14, 0x3E, 0x14, 0x0, // [0x23] '#'
+ 0x24, 0x2A, 0x7F, 0x2A, 0x12, 0x0, // [0x24] '$'
+ 0x22, 0x10, 0x8, 0x4, 0x22, 0x0, // [0x25] '%'
+ 0x18, 0x24, 0x24, 0x1E, 0x4, 0x0, // [0x26] '&'
+ 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, // [0x27] '''
+ 0x0, 0x1C, 0x22, 0x41, 0x0, 0x0, // [0x28] '('
+ 0x0, 0x41, 0x22, 0x1C, 0x0, 0x0, // [0x29] ')'
+ 0x2A, 0x1C, 0x3E, 0x1C, 0x2A, 0x0, // [0x2A] '*'
+ 0x8, 0x8, 0x3E, 0x8, 0x8, 0x0, // [0x2B] '+'
+ 0x0, 0x40, 0x20, 0x0, 0x0, 0x0, // [0x2C] ','
+ 0x8, 0x8, 0x8, 0x8, 0x8, 0x0, // [0x2D] '-'
+ 0x0, 0x0, 0x20, 0x0, 0x0, 0x0, // [0x2E] '.'
+ 0x0, 0xC0, 0x30, 0xC, 0x3, 0x0, // [0x2F] '/'
+ 0x1E, 0x29, 0x2D, 0x25, 0x1E, 0x0, // [0x30] '0'
+ 0x0, 0x22, 0x3F, 0x20, 0x0, 0x0, // [0x31] '1'
+ 0x32, 0x29, 0x29, 0x29, 0x26, 0x0, // [0x32] '2'
+ 0x12, 0x21, 0x29, 0x29, 0x16, 0x0, // [0x33] '3'
+ 0x7, 0x8, 0x8, 0x8, 0x3E, 0x0, // [0x34] '4'
+ 0x17, 0x25, 0x25, 0x25, 0x18, 0x0, // [0x35] '5'
+ 0x1E, 0x25, 0x25, 0x25, 0x18, 0x0, // [0x36] '6'
+ 0x1, 0x1, 0x9, 0x9, 0x3E, 0x0, // [0x37] '7'
+ 0x1A, 0x25, 0x25, 0x25, 0x1A, 0x0, // [0x38] '8'
+ 0x6, 0x9, 0x9, 0x9, 0x3E, 0x0, // [0x39] '9'
+ 0x0, 0x0, 0x22, 0x0, 0x0, 0x0, // [0x3A] ':'
+ 0x0, 0x40, 0x22, 0x0, 0x0, 0x0, // [0x3B] ';'
+ 0x0, 0x8, 0x14, 0x22, 0x41, 0x0, // [0x3C] '<'
+ 0x14, 0x14, 0x14, 0x14, 0x14, 0x0, // [0x3D] '='
+ 0x0, 0x41, 0x22, 0x14, 0x8, 0x0, // [0x3E] '>'
+ 0x2, 0x1, 0x29, 0x9, 0x6, 0x0, // [0x3F] '?'
+ 0x1E, 0x21, 0x2D, 0x2D, 0x6, 0x0, // [0x40] '@'
+ 0x3E, 0x11, 0x11, 0x11, 0x3E, 0x0, // [0x41] 'A'
+ 0x3E, 0x25, 0x25, 0x25, 0x1A, 0x0, // [0x42] 'B'
+ 0x1E, 0x21, 0x21, 0x21, 0x12, 0x0, // [0x43] 'C'
+ 0x3E, 0x21, 0x21, 0x22, 0x1C, 0x0, // [0x44] 'D'
+ 0x3F, 0x29, 0x29, 0x21, 0x21, 0x0, // [0x45] 'E'
+ 0x3F, 0x9, 0x9, 0x1, 0x1, 0x0, // [0x46] 'F'
+ 0x1E, 0x21, 0x29, 0x29, 0x1A, 0x0, // [0x47] 'G'
+ 0x3F, 0x8, 0x8, 0x8, 0x3F, 0x0, // [0x48] 'H'
+ 0x0, 0x21, 0x3F, 0x21, 0x0, 0x0, // [0x49] 'I'
+ 0x10, 0x20, 0x21, 0x21, 0x1F, 0x0, // [0x4A] 'J'
+ 0x3F, 0x8, 0xC, 0x12, 0x21, 0x0, // [0x4B] 'K'
+ 0x1F, 0x20, 0x20, 0x20, 0x20, 0x0, // [0x4C] 'L'
+ 0x3E, 0x1, 0x6, 0x1, 0x3E, 0x0, // [0x4D] 'M'
+ 0x3E, 0x1, 0x1, 0x2, 0x3C, 0x0, // [0x4E] 'N'
+ 0x1E, 0x21, 0x21, 0x21, 0x1E, 0x0, // [0x4F] 'O'
+ 0x3E, 0x11, 0x11, 0x11, 0xE, 0x0, // [0x50] 'P'
+ 0x1E, 0x21, 0x29, 0x71, 0x5E, 0x0, // [0x51] 'Q'
+ 0x3E, 0x9, 0x9, 0x9, 0x36, 0x0, // [0x52] 'R'
+ 0x12, 0x25, 0x25, 0x25, 0x18, 0x0, // [0x53] 'S'
+ 0x1, 0x1, 0x3F, 0x1, 0x1, 0x0, // [0x54] 'T'
+ 0x1F, 0x20, 0x20, 0x20, 0x1F, 0x0, // [0x55] 'U'
+ 0xF, 0x10, 0x20, 0x10, 0xF, 0x0, // [0x56] 'V'
+ 0x1F, 0x20, 0x18, 0x20, 0x1F, 0x0, // [0x57] 'W'
+ 0x31, 0xA, 0x4, 0xA, 0x31, 0x0, // [0x58] 'X'
+ 0x7, 0x28, 0x28, 0x28, 0x1F, 0x0, // [0x59] 'Y'
+ 0x31, 0x29, 0x25, 0x23, 0x21, 0x0, // [0x5A] 'Z'
+ 0x0, 0x7F, 0x41, 0x41, 0x0, 0x0, // [0x5B] '['
+ 0x0, 0x3, 0xC, 0x30, 0xC0, 0x0, // [0x5C] '\\'
+ 0x0, 0x41, 0x41, 0x7F, 0x0, 0x0, // [0x5D] ']'
+ 0x0, 0x2, 0x1, 0x2, 0x0, 0x0, // [0x5E] '^'
+ 0x40, 0x40, 0x40, 0x40, 0x40, 0x0, // [0x5F] '_'
+ 0x1, 0x2, 0x0, 0x0, 0x0, 0x0, // [0x60] '`'
+ 0x1C, 0x22, 0x22, 0x22, 0x3C, 0x0, // [0x61] 'a'
+ 0x1F, 0x22, 0x22, 0x22, 0x1C, 0x0, // [0x62] 'b'
+ 0x1C, 0x22, 0x22, 0x22, 0x20, 0x0, // [0x63] 'c'
+ 0x1C, 0x22, 0x22, 0x22, 0x1F, 0x0, // [0x64] 'd'
+ 0x1C, 0x2A, 0x2A, 0x2A, 0x4, 0x0, // [0x65] 'e'
+ 0x8, 0x7E, 0x9, 0x1, 0x1, 0x0, // [0x66] 'f'
+ 0xC, 0x52, 0x52, 0x52, 0x3C, 0x0, // [0x67] 'g'
+ 0x3F, 0x2, 0x2, 0x2, 0x3C, 0x0, // [0x68] 'h'
+ 0x0, 0x0, 0x3D, 0x0, 0x0, 0x0, // [0x69] 'i'
+ 0x20, 0x40, 0x40, 0x40, 0x3D, 0x0, // [0x6A] 'j'
+ 0x3F, 0x8, 0x8, 0x14, 0x22, 0x0, // [0x6B] 'k'
+ 0x0, 0x1F, 0x20, 0x20, 0x0, 0x0, // [0x6C] 'l'
+ 0x3C, 0x2, 0x4, 0x2, 0x3C, 0x0, // [0x6D] 'm'
+ 0x3C, 0x2, 0x2, 0x2, 0x3C, 0x0, // [0x6E] 'n'
+ 0x1C, 0x22, 0x22, 0x22, 0x1C, 0x0, // [0x6F] 'o'
+ 0x7C, 0x12, 0x12, 0x12, 0xC, 0x0, // [0x70] 'p'
+ 0xC, 0x12, 0x12, 0x12, 0x7E, 0x0, // [0x71] 'q'
+ 0x3C, 0x2, 0x2, 0x2, 0x4, 0x0, // [0x72] 'r'
+ 0x24, 0x2A, 0x2A, 0x2A, 0x10, 0x0, // [0x73] 's'
+ 0x1F, 0x22, 0x22, 0x20, 0x10, 0x0, // [0x74] 't'
+ 0x1E, 0x20, 0x20, 0x20, 0x1E, 0x0, // [0x75] 'u'
+ 0xE, 0x10, 0x20, 0x10, 0xE, 0x0, // [0x76] 'v'
+ 0x1E, 0x20, 0x10, 0x20, 0x1E, 0x0, // [0x77] 'w'
+ 0x22, 0x14, 0x8, 0x14, 0x22, 0x0, // [0x78] 'x'
+ 0xE, 0x50, 0x50, 0x50, 0x3E, 0x0, // [0x79] 'y'
+ 0x22, 0x32, 0x2A, 0x26, 0x22, 0x0, // [0x7A] 'z'
+ 0x0, 0x8, 0x36, 0x41, 0x0, 0x0, // [0x7B] '{'
+ 0x0, 0x0, 0x7F, 0x0, 0x0, 0x0, // [0x7C] '|'
+ 0x0, 0x41, 0x36, 0x8, 0x0, 0x0, // [0x7D] '}'
+ 0x0, 0x2, 0x1, 0x2, 0x1, 0x0, // [0x7E] '~'
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x7F] ''
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x80] ''
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x81] ''
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x82] ''
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x83] ''
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x84] ''
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x85] '
'
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x86] ''
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x87] ''
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x88] ''
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x89] ''
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x8A] ''
+ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // [0x8B] ''
+};