Author Topic: STM32 Nokia 5110 Large Font Issue (Read 18078 times)

diyaudio · « **on:** October 31, 2014, 11:13:55 am »

Hi All

I'm experimenting with a Nokia 5110 LCD, so far I am able to display the standard font see attachment, however this is the problem..

I want to use a bigger, custom numeric font, medium-size and large-size (see attachment) and use it with the library I'm using, however the library I'm using is rather basic and only supports the standard 6X8 font (see attachment)

I tried to port and experiment sections of this library Henning Karlsen
http://www.henningkarlsen.com/electronics/library.php?id=44

However the results aren't to great. (see attachment)
Here are sections of the code simplified for clarity, the LCD is initialized correctly, so all I need to understand for now is how to render larger fonts, and maybe next draw.

Code: [Select]


#ifndef __DRV_LCD5110_FONT__
#define __DRV_LCD5110_FONT__

unsigned char font6_8[][6] =
{
    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },   // sp
    { 0x00, 0x00, 0x00, 0x2f, 0x00, 0x00 },   // !
    { 0x00, 0x00, 0x07, 0x00, 0x07, 0x00 },   // "
    { 0x00, 0x14, 0x7f, 0x14, 0x7f, 0x14 },   // #
    { 0x00, 0x24, 0x2a, 0x7f, 0x2a, 0x12 },   // $
    { 0x00, 0x62, 0x64, 0x08, 0x13, 0x23 },   // %
    { 0x00, 0x36, 0x49, 0x55, 0x22, 0x50 },   // &
    { 0x00, 0x00, 0x05, 0x03, 0x00, 0x00 },   // '
    { 0x00, 0x00, 0x1c, 0x22, 0x41, 0x00 },   // (
    { 0x00, 0x00, 0x41, 0x22, 0x1c, 0x00 },   // )
    { 0x00, 0x14, 0x08, 0x3E, 0x08, 0x14 },   // *
    { 0x00, 0x08, 0x08, 0x3E, 0x08, 0x08 },   // +
    { 0x00, 0x00, 0x00, 0xA0, 0x60, 0x00 },   // ,
    { 0x00, 0x08, 0x08, 0x08, 0x08, 0x08 },   // -
    { 0x00, 0x00, 0x60, 0x60, 0x00, 0x00 },   // .
    { 0x00, 0x20, 0x10, 0x08, 0x04, 0x02 },   // /
    { 0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E },   // 0
    { 0x00, 0x00, 0x42, 0x7F, 0x40, 0x00 },   // 1
    { 0x00, 0x42, 0x61, 0x51, 0x49, 0x46 },   // 2
    { 0x00, 0x21, 0x41, 0x45, 0x4B, 0x31 },   // 3
    { 0x00, 0x18, 0x14, 0x12, 0x7F, 0x10 },   // 4
    { 0x00, 0x27, 0x45, 0x45, 0x45, 0x39 },   // 5
    { 0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30 },   // 6
    { 0x00, 0x01, 0x71, 0x09, 0x05, 0x03 },   // 7
    { 0x00, 0x36, 0x49, 0x49, 0x49, 0x36 },   // 8
    { 0x00, 0x06, 0x49, 0x49, 0x29, 0x1E },   // 9
    { 0x00, 0x00, 0x36, 0x36, 0x00, 0x00 },   // :
    { 0x00, 0x00, 0x56, 0x36, 0x00, 0x00 },   // ;
    { 0x00, 0x08, 0x14, 0x22, 0x41, 0x00 },   // <
    { 0x00, 0x14, 0x14, 0x14, 0x14, 0x14 },   // =
    { 0x00, 0x00, 0x41, 0x22, 0x14, 0x08 },   // >
    { 0x00, 0x02, 0x01, 0x51, 0x09, 0x06 },   // ?
    { 0x00, 0x32, 0x49, 0x59, 0x51, 0x3E },   // @
    { 0x00, 0x7C, 0x12, 0x11, 0x12, 0x7C },   // A
    { 0x00, 0x7F, 0x49, 0x49, 0x49, 0x36 },   // B
    { 0x00, 0x3E, 0x41, 0x41, 0x41, 0x22 },   // C
    { 0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C },   // D
    { 0x00, 0x7F, 0x49, 0x49, 0x49, 0x41 },   // E
    { 0x00, 0x7F, 0x09, 0x09, 0x09, 0x01 },   // F
    { 0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A },   // G
    { 0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F },   // H
    { 0x00, 0x00, 0x41, 0x7F, 0x41, 0x00 },   // I
    { 0x00, 0x20, 0x40, 0x41, 0x3F, 0x01 },   // J
    { 0x00, 0x7F, 0x08, 0x14, 0x22, 0x41 },   // K
    { 0x00, 0x7F, 0x40, 0x40, 0x40, 0x40 },   // L
    { 0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F },   // M
    { 0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F },   // N
    { 0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E },   // O
    { 0x00, 0x7F, 0x09, 0x09, 0x09, 0x06 },   // P
    { 0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E },   // Q
    { 0x00, 0x7F, 0x09, 0x19, 0x29, 0x46 },   // R
    { 0x00, 0x46, 0x49, 0x49, 0x49, 0x31 },   // S
    { 0x00, 0x01, 0x01, 0x7F, 0x01, 0x01 },   // T
    { 0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F },   // U
    { 0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F },   // V
    { 0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F },   // W
    { 0x00, 0x63, 0x14, 0x08, 0x14, 0x63 },   // X
    { 0x00, 0x07, 0x08, 0x70, 0x08, 0x07 },   // Y
    { 0x00, 0x61, 0x51, 0x49, 0x45, 0x43 },   // Z
    { 0x00, 0x00, 0x7F, 0x41, 0x41, 0x00 },   // [
    { 0x00, 0x55, 0x2A, 0x55, 0x2A, 0x55 },   // 55
    { 0x00, 0x00, 0x41, 0x41, 0x7F, 0x00 },   // ]
    { 0x00, 0x04, 0x02, 0x01, 0x02, 0x04 },   // ^
    { 0x00, 0x40, 0x40, 0x40, 0x40, 0x40 },   // _
    { 0x00, 0x00, 0x01, 0x02, 0x04, 0x00 },   // '
    { 0x00, 0x20, 0x54, 0x54, 0x54, 0x78 },   // a
    { 0x00, 0x7F, 0x48, 0x44, 0x44, 0x38 },   // b
    { 0x00, 0x38, 0x44, 0x44, 0x44, 0x20 },   // c
    { 0x00, 0x38, 0x44, 0x44, 0x48, 0x7F },   // d
    { 0x00, 0x38, 0x54, 0x54, 0x54, 0x18 },   // e
    { 0x00, 0x08, 0x7E, 0x09, 0x01, 0x02 },   // f
    { 0x00, 0x18, 0xA4, 0xA4, 0xA4, 0x7C },   // g
    { 0x00, 0x7F, 0x08, 0x04, 0x04, 0x78 },   // h
    { 0x00, 0x00, 0x44, 0x7D, 0x40, 0x00 },   // i
    { 0x00, 0x40, 0x80, 0x84, 0x7D, 0x00 },   // j
    { 0x00, 0x7F, 0x10, 0x28, 0x44, 0x00 },   // k
    { 0x00, 0x00, 0x41, 0x7F, 0x40, 0x00 },   // l
    { 0x00, 0x7C, 0x04, 0x18, 0x04, 0x78 },   // m
    { 0x00, 0x7C, 0x08, 0x04, 0x04, 0x78 },   // n
    { 0x00, 0x38, 0x44, 0x44, 0x44, 0x38 },   // o
    { 0x00, 0xFC, 0x24, 0x24, 0x24, 0x18 },   // p
    { 0x00, 0x18, 0x24, 0x24, 0x18, 0xFC },   // q
    { 0x00, 0x7C, 0x08, 0x04, 0x04, 0x08 },   // r
    { 0x00, 0x48, 0x54, 0x54, 0x54, 0x20 },   // s
    { 0x00, 0x04, 0x3F, 0x44, 0x40, 0x20 },   // t
    { 0x00, 0x3C, 0x40, 0x40, 0x20, 0x7C },   // u
    { 0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C },   // v
    { 0x00, 0x3C, 0x40, 0x30, 0x40, 0x3C },   // w
    { 0x00, 0x44, 0x28, 0x10, 0x28, 0x44 },   // x
    { 0x00, 0x1C, 0xA0, 0xA0, 0xA0, 0x7C },   // y
    { 0x00, 0x44, 0x64, 0x54, 0x4C, 0x44 },   // z
    { 0x00,0x00, 0x06, 0x09, 0x09, 0x06 }    // horiz lines
};


unsigned char MediumNumbers[]  =
{
  0x0c, 0x10, 0x2d, 0x0d,  // config bytes  12, 16, 45, 13
  0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x01, 0x00, 0x00,   // -
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00,   // .
  0x00, 0x00, 0x02, 0x86, 0x86, 0x86, 0x86, 0x86, 0x86, 0x02, 0x00, 0x00, 0x00, 0x00, 0x81, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0x81, 0x00, 0x00,   // /
  0x00, 0xfc, 0x7a, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x7a, 0xfc, 0x00, 0x00, 0x7e, 0xbc, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xbc, 0x7e, 0x00,   // 0
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x78, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x7e, 0x00,   // 1
  0x00, 0x00, 0x02, 0x86, 0x86, 0x86, 0x86, 0x86, 0x86, 0x7a, 0xfc, 0x00, 0x00, 0x7e, 0xbd, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0x81, 0x00, 0x00,   // 2
  0x00, 0x00, 0x02, 0x86, 0x86, 0x86, 0x86, 0x86, 0x86, 0x7a, 0xfc, 0x00, 0x00, 0x00, 0x81, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xbd, 0x7e, 0x00,   // 3
  0x00, 0xfc, 0x78, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x78, 0xfc, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x3d, 0x7e, 0x00,   // 4
  0x00, 0xfc, 0x7a, 0x86, 0x86, 0x86, 0x86, 0x86, 0x86, 0x02, 0x00, 0x00, 0x00, 0x00, 0x81, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xbd, 0x7e, 0x00,   // 5
  0x00, 0xfc, 0x7a, 0x86, 0x86, 0x86, 0x86, 0x86, 0x86, 0x02, 0x00, 0x00, 0x00, 0x7e, 0xbd, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xbd, 0x7e, 0x00,   // 6
  0x00, 0x00, 0x02, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x7a, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x7e, 0x00,   // 7
  0x00, 0xfc, 0x7a, 0x86, 0x86, 0x86, 0x86, 0x86, 0x86, 0x7a, 0xfc, 0x00, 0x00, 0x7e, 0xbd, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xbd, 0x7e, 0x00,   // 8
  0x00, 0xfc, 0x7a, 0x86, 0x86, 0x86, 0x86, 0x86, 0x86, 0x7a, 0xfc, 0x00, 0x00, 0x00, 0x81, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xbd, 0x7e, 0x00,   // 9
};


unsigned char BigNumbers[]  =
{
  
  0x0e, 0x18, 0x2d, 0x0d, // config bytes 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x10, 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, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0xe0, 0xe0, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00,   // .
  0x00, 0x00, 0x02, 0x06, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x06, 0x02, 0x00, 0x00, 0x00, 0x00, 0x10, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x10, 0x00, 0x00, 0x00, 0x00, 0x80, 0xc0, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xc0, 0x80, 0x00, 0x00,   // /
  0x00, 0xfc, 0xfa, 0xf6, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0xf6, 0xfa, 0xfc, 0x00, 0x00, 0xef, 0xc7, 0x83, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x83, 0xc7, 0xef, 0x00, 0x00, 0x7f, 0xbf, 0xdf, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xdf, 0xbf, 0x7f, 0x00,   // 0
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0xf8, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x83, 0xc7, 0xef, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x3f, 0x7f, 0x00,   // 1
  0x00, 0x00, 0x02, 0x06, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0xf6, 0xfa, 0xfc, 0x00, 0x00, 0xe0, 0xd0, 0xb8, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x3b, 0x17, 0x0f, 0x00, 0x00, 0x7f, 0xbf, 0xdf, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xc0, 0x80, 0x00, 0x00,   // 2
  0x00, 0x00, 0x02, 0x06, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0xf6, 0xfa, 0xfc, 0x00, 0x00, 0x00, 0x10, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0xbb, 0xd7, 0xef, 0x00, 0x00, 0x00, 0x80, 0xc0, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xdf, 0xbf, 0x7f, 0x00,   // 3
  0x00, 0xfc, 0xf8, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0xf8, 0xfc, 0x00, 0x00, 0x0f, 0x17, 0x3b, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0xbb, 0xd7, 0xef, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x3f, 0x7f, 0x00,   // 4
  0x00, 0xfc, 0xfa, 0xf6, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x06, 0x02, 0x00, 0x00, 0x00, 0x0f, 0x17, 0x3b, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0xb8, 0xd0, 0xe0, 0x00, 0x00, 0x00, 0x80, 0xc0, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xdf, 0xbf, 0x7f, 0x00,   // 5
  0x00, 0xfc, 0xfa, 0xf6, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x06, 0x02, 0x00, 0x00, 0x00, 0xef, 0xd7, 0xbb, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0xb8, 0xd0, 0xe0, 0x00, 0x00, 0x7f, 0xbf, 0xdf, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xdf, 0xbf, 0x7f, 0x00,   // 6
  0x00, 0x00, 0x02, 0x06, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0xf6, 0xfa, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x83, 0xc7, 0xef, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x3f, 0x7f, 0x00,   // 7
  0x00, 0xfc, 0xfa, 0xf6, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0xf6, 0xfa, 0xfc, 0x00, 0x00, 0xef, 0xd7, 0xbb, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0xbb, 0xd7, 0xef, 0x00, 0x00, 0x7f, 0xbf, 0xdf, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xdf, 0xbf, 0x7f, 0x00,   // 8
  0x00, 0xfc, 0xfa, 0xf6, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0xf6, 0xfa, 0xfc, 0x00, 0x00, 0x0f, 0x17, 0x3b, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0xbb, 0xd7, 0xef, 0x00, 0x00, 0x00, 0x80, 0xc0, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xdf, 0xbf, 0x7f, 0x00,   // 9

};


struct lcd_font
{
    unsigned char* font;
    char x_size;
    char y_size;
    char offset;
    char numchars;
    char inverted;
};

static struct lcd_font font;

#define FONT_READ_BYTE(x) font.font[x];

void LCD5110_GPIO_Config() {
  
    GPIO_InitTypeDef GPIO_InitStructure;

    // Declare pins to configure
    GPIO_InitStructure.GPIO_Pin = LCD_RESET | LCD_DC |  LCD_DATA_IN | LCD_CLK; 
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    
    // Init Port
    GPIO_Init(GPIOA, &GPIO_InitStructure);
    
    // assign font
    font.font = MediumNumbers;
    
    // Setup font.
    font.x_size = FONT_READ_BYTE(0);     // 12;
    font.y_size = FONT_READ_BYTE(1);     // 16;
    font.offset = FONT_READ_BYTE(2);     // 45;
    font.numchars = FONT_READ_BYTE(3);   // 13;
    font.inverted = 0;
}



void LCD5110_num_string(unsigned char *s, int x, int row) 
{
  unsigned char ch;
  while(*s != '\0') {
    ch = *s;
    LCD5110_num_char(ch, x, row);
    s++;
  } 
}

void LCD5110_num_char(unsigned char c, int x, int row) 
{
   
    // Caclulate the y-size pixel bank height.
    char max = font.x_size / 8;
    for (int rowcnt = 0; rowcnt < max  ; rowcnt++) 
    {

      	LCD5110_LCD_write_byte(LCD_SETYADDR | (row + rowcnt), LCD_COMMAND); 
	LCD5110_LCD_write_byte(LCD_SETXADDR | x, LCD_COMMAND);
        
        int font_idx = (( c - font.offset ) * ( font.x_size * ( font.y_size / 8 ))) + 4;
        
        for(int cnt = 0; cnt < font.x_size; cnt++)
        {
            char index = font_idx + cnt + ( rowcnt * font.x_size );
            char s = FONT_READ_BYTE( index );
            
            LCD5110_LCD_write_byte( s , LCD_DATA );

        }
    }
    
   // reset 
   LCD5110_LCD_write_byte(LCD_SETYADDR, LCD_COMMAND);
   LCD5110_LCD_write_byte(LCD_SETXADDR, LCD_COMMAND);
}


// usage
void main()
{

       if(second_tick == true)
       {
    
           LCD5110_clear();
           
           LCD5110_num_string("2", 1, 0);
         
          sec_counter++;
          second_tick = false;
       }
}






}

#endif

dannyf · « **Reply #1 on:** October 31, 2014, 01:14:15 pm »

Think of the fonts as an image and write a function that output an image to the screen. When you need to output a string (alphanumeric), just use the chars in the string to look up the image data and output the image.

andyturk · « **Reply #2 on:** November 01, 2014, 05:52:06 am »

https://code.google.com/p/u8glib/

diyaudio · « **Reply #3 on:** November 03, 2014, 09:53:39 pm »

Bugs are fixed here are the results. Everything works and looks right

diyaudio · « **Reply #4 on:** November 03, 2014, 09:57:00 pm »

Quote from: andyturk on November 01, 2014, 05:52:06 am

https://code.google.com/p/u8glib/

Thanks for the link its a bit of heavy library for my needs i will keep it as a reference for future designs.

shebu18 · « **Reply #5 on:** July 24, 2015, 10:03:16 am »

Hello, i did not want to start a new topic for a simple question. I am in almost the same situation as you are, i want to display some numbers but in bigger format as 6x8, someting like 12x16 or bigger.

Could you explain what you did to make it work, how do you set the font.

Thanks.

diyaudio · « **Reply #6 on:** July 24, 2015, 11:48:04 am »

Quote from: shebu18 on July 24, 2015, 10:03:16 am

Hello, i did not want to start a new topic for a simple question. I am in almost the same situation as you are, i want to display some numbers but in bigger format as 6x8, someting like 12x16 or bigger.

Could you explain what you did to make it work, how do you set the font.

Thanks.

hi.

The custom fonts can be made using a font generator of your choice OR downloaded from an existing open source project, I used the larger font (in my case its a Terminal11x16)

Here is the font memory map I used

Code: [Select]


 static const unsigned char Terminal11x16[96][22] = {
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char
  0x00,0x00,0x00,0x00,0x00,0x00,0x7C,0x00,0xFF,0x33,0xFF,0x33,0x7C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char !
  0x00,0x00,0x00,0x00,0x3C,0x00,0x3C,0x00,0x00,0x00,0x00,0x00,0x3C,0x00,0x3C,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char "
  0x00,0x02,0x10,0x1E,0x90,0x1F,0xF0,0x03,0x7E,0x02,0x1E,0x1E,0x90,0x1F,0xF0,0x03,0x7E,0x02,0x1E,0x00,0x10,0x00, // Code for char #
  0x00,0x00,0x78,0x04,0xFC,0x0C,0xCC,0x0C,0xFF,0x3F,0xFF,0x3F,0xCC,0x0C,0xCC,0x0F,0x88,0x07,0x00,0x00,0x00,0x00, // Code for char $
  0x00,0x30,0x38,0x38,0x38,0x1C,0x38,0x0E,0x00,0x07,0x80,0x03,0xC0,0x01,0xE0,0x38,0x70,0x38,0x38,0x38,0x1C,0x00, // Code for char %
  0x00,0x00,0x00,0x1F,0xB8,0x3F,0xFC,0x31,0xC6,0x21,0xE2,0x37,0x3E,0x1E,0x1C,0x1C,0x00,0x36,0x00,0x22,0x00,0x00, // Code for char &
  0x00,0x00,0x00,0x00,0x00,0x00,0x27,0x00,0x3F,0x00,0x1F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char '
  0x00,0x00,0x00,0x00,0xF0,0x03,0xFC,0x0F,0xFE,0x1F,0x07,0x38,0x01,0x20,0x01,0x20,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char (
  0x00,0x00,0x00,0x00,0x01,0x20,0x01,0x20,0x07,0x38,0xFE,0x1F,0xFC,0x0F,0xF0,0x03,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char )
  0x00,0x00,0x98,0x0C,0xB8,0x0E,0xE0,0x03,0xF8,0x0F,0xF8,0x0F,0xE0,0x03,0xB8,0x0E,0x98,0x0C,0x00,0x00,0x00,0x00, // Code for char *
  0x00,0x00,0x80,0x01,0x80,0x01,0x80,0x01,0xF0,0x0F,0xF0,0x0F,0x80,0x01,0x80,0x01,0x80,0x01,0x00,0x00,0x00,0x00, // Code for char +
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xB8,0x00,0xF8,0x00,0x78,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char ,
  0x00,0x00,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x00,0x00,0x00,0x00, // Code for char -
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x38,0x00,0x38,0x00,0x38,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char .
  0x00,0x18,0x00,0x1C,0x00,0x0E,0x00,0x07,0x80,0x03,0xC0,0x01,0xE0,0x00,0x70,0x00,0x38,0x00,0x1C,0x00,0x0E,0x00, // Code for char /
  0xF8,0x07,0xFE,0x1F,0x06,0x1E,0x03,0x33,0x83,0x31,0xC3,0x30,0x63,0x30,0x33,0x30,0x1E,0x18,0xFE,0x1F,0xF8,0x07, // Code for char 0
  0x00,0x00,0x00,0x00,0x0C,0x30,0x0C,0x30,0x0E,0x30,0xFF,0x3F,0xFF,0x3F,0x00,0x30,0x00,0x30,0x00,0x30,0x00,0x00, // Code for char 1
  0x1C,0x30,0x1E,0x38,0x07,0x3C,0x03,0x3E,0x03,0x37,0x83,0x33,0xC3,0x31,0xE3,0x30,0x77,0x30,0x3E,0x30,0x1C,0x30, // Code for char 2
  0x0C,0x0C,0x0E,0x1C,0x07,0x38,0xC3,0x30,0xC3,0x30,0xC3,0x30,0xC3,0x30,0xC3,0x30,0xE7,0x39,0x7E,0x1F,0x3C,0x0E, // Code for char 3
  0xC0,0x03,0xE0,0x03,0x70,0x03,0x38,0x03,0x1C,0x03,0x0E,0x03,0x07,0x03,0xFF,0x3F,0xFF,0x3F,0x00,0x03,0x00,0x03, // Code for char 4
  0x3F,0x0C,0x7F,0x1C,0x63,0x38,0x63,0x30,0x63,0x30,0x63,0x30,0x63,0x30,0x63,0x30,0xE3,0x38,0xC3,0x1F,0x83,0x0F, // Code for char 5
  0xC0,0x0F,0xF0,0x1F,0xF8,0x39,0xDC,0x30,0xCE,0x30,0xC7,0x30,0xC3,0x30,0xC3,0x30,0xC3,0x39,0x80,0x1F,0x00,0x0F, // Code for char 6
  0x03,0x00,0x03,0x00,0x03,0x00,0x03,0x30,0x03,0x3C,0x03,0x0F,0xC3,0x03,0xF3,0x00,0x3F,0x00,0x0F,0x00,0x03,0x00, // Code for char 7
  0x00,0x0F,0xBC,0x1F,0xFE,0x39,0xE7,0x30,0xC3,0x30,0xC3,0x30,0xC3,0x30,0xE7,0x30,0xFE,0x39,0xBC,0x1F,0x00,0x0F, // Code for char 8
  0x3C,0x00,0x7E,0x00,0xE7,0x30,0xC3,0x30,0xC3,0x30,0xC3,0x38,0xC3,0x1C,0xC3,0x0E,0xE7,0x07,0xFE,0x03,0xFC,0x00, // Code for char 9
  0x00,0x00,0x00,0x00,0x00,0x00,0x70,0x1C,0x70,0x1C,0x70,0x1C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char :
  0x00,0x00,0x00,0x00,0x00,0x00,0x70,0x9C,0x70,0xFC,0x70,0x7C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char ;
  0x00,0x00,0xC0,0x00,0xE0,0x01,0xF0,0x03,0x38,0x07,0x1C,0x0E,0x0E,0x1C,0x07,0x38,0x03,0x30,0x00,0x00,0x00,0x00, // Code for char <
  0x00,0x00,0x60,0x06,0x60,0x06,0x60,0x06,0x60,0x06,0x60,0x06,0x60,0x06,0x60,0x06,0x60,0x06,0x60,0x06,0x00,0x00, // Code for char =
  0x00,0x00,0x03,0x30,0x07,0x38,0x0E,0x1C,0x1C,0x0E,0x38,0x07,0xF0,0x03,0xE0,0x01,0xC0,0x00,0x00,0x00,0x00,0x00, // Code for char >
  0x1C,0x00,0x1E,0x00,0x07,0x00,0x03,0x00,0x83,0x37,0xC3,0x37,0xE3,0x00,0x77,0x00,0x3E,0x00,0x1C,0x00,0x00,0x00, // Code for char ?
  0xF8,0x0F,0xFE,0x1F,0x07,0x18,0xF3,0x33,0xFB,0x37,0x1B,0x36,0xFB,0x37,0xFB,0x37,0x07,0x36,0xFE,0x03,0xF8,0x01, // Code for char @
  0x00,0x38,0x00,0x3F,0xE0,0x07,0xFC,0x06,0x1F,0x06,0x1F,0x06,0xFC,0x06,0xE0,0x07,0x00,0x3F,0x00,0x38,0x00,0x00, // Code for char A
  0xFF,0x3F,0xFF,0x3F,0xC3,0x30,0xC3,0x30,0xC3,0x30,0xC3,0x30,0xE7,0x30,0xFE,0x39,0xBC,0x1F,0x00,0x0F,0x00,0x00, // Code for char B
  0xF0,0x03,0xFC,0x0F,0x0E,0x1C,0x07,0x38,0x03,0x30,0x03,0x30,0x03,0x30,0x07,0x38,0x0E,0x1C,0x0C,0x0C,0x00,0x00, // Code for char C
  0xFF,0x3F,0xFF,0x3F,0x03,0x30,0x03,0x30,0x03,0x30,0x03,0x30,0x07,0x38,0x0E,0x1C,0xFC,0x0F,0xF0,0x03,0x00,0x00, // Code for char D
  0xFF,0x3F,0xFF,0x3F,0xC3,0x30,0xC3,0x30,0xC3,0x30,0xC3,0x30,0xC3,0x30,0xC3,0x30,0x03,0x30,0x03,0x30,0x00,0x00, // Code for char E
  0xFF,0x3F,0xFF,0x3F,0xC3,0x00,0xC3,0x00,0xC3,0x00,0xC3,0x00,0xC3,0x00,0xC3,0x00,0x03,0x00,0x03,0x00,0x00,0x00, // Code for char F
  0xF0,0x03,0xFC,0x0F,0x0E,0x1C,0x07,0x38,0x03,0x30,0xC3,0x30,0xC3,0x30,0xC3,0x30,0xC7,0x3F,0xC6,0x3F,0x00,0x00, // Code for char G
  0xFF,0x3F,0xFF,0x3F,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xFF,0x3F,0xFF,0x3F,0x00,0x00, // Code for char H
  0x00,0x00,0x00,0x00,0x03,0x30,0x03,0x30,0xFF,0x3F,0xFF,0x3F,0x03,0x30,0x03,0x30,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char I
  0x00,0x0E,0x00,0x1E,0x00,0x38,0x00,0x30,0x00,0x30,0x00,0x30,0x00,0x30,0x00,0x38,0xFF,0x1F,0xFF,0x07,0x00,0x00, // Code for char J
  0xFF,0x3F,0xFF,0x3F,0xC0,0x00,0xE0,0x01,0xF0,0x03,0x38,0x07,0x1C,0x0E,0x0E,0x1C,0x07,0x38,0x03,0x30,0x00,0x00, // Code for char K
  0xFF,0x3F,0xFF,0x3F,0x00,0x30,0x00,0x30,0x00,0x30,0x00,0x30,0x00,0x30,0x00,0x30,0x00,0x30,0x00,0x30,0x00,0x00, // Code for char L
  0xFF,0x3F,0xFF,0x3F,0x1E,0x00,0x78,0x00,0xE0,0x01,0xE0,0x01,0x78,0x00,0x1E,0x00,0xFF,0x3F,0xFF,0x3F,0x00,0x00, // Code for char M
  0xFF,0x3F,0xFF,0x3F,0x0E,0x00,0x38,0x00,0xF0,0x00,0xC0,0x03,0x00,0x07,0x00,0x1C,0xFF,0x3F,0xFF,0x3F,0x00,0x00, // Code for char N
  0xF0,0x03,0xFC,0x0F,0x0E,0x1C,0x07,0x38,0x03,0x30,0x03,0x30,0x07,0x38,0x0E,0x1C,0xFC,0x0F,0xF0,0x03,0x00,0x00, // Code for char O
  0xFF,0x3F,0xFF,0x3F,0x83,0x01,0x83,0x01,0x83,0x01,0x83,0x01,0x83,0x01,0xC7,0x01,0xFE,0x00,0x7C,0x00,0x00,0x00, // Code for char P
  0xF0,0x03,0xFC,0x0F,0x0E,0x1C,0x07,0x38,0x03,0x30,0x03,0x36,0x07,0x3E,0x0E,0x1C,0xFC,0x3F,0xF0,0x33,0x00,0x00, // Code for char Q
  0xFF,0x3F,0xFF,0x3F,0x83,0x01,0x83,0x01,0x83,0x03,0x83,0x07,0x83,0x0F,0xC7,0x1D,0xFE,0x38,0x7C,0x30,0x00,0x00, // Code for char R
  0x3C,0x0C,0x7E,0x1C,0xE7,0x38,0xC3,0x30,0xC3,0x30,0xC3,0x30,0xC3,0x30,0xC7,0x39,0x8E,0x1F,0x0C,0x0F,0x00,0x00, // Code for char S
  0x00,0x00,0x03,0x00,0x03,0x00,0x03,0x00,0xFF,0x3F,0xFF,0x3F,0x03,0x00,0x03,0x00,0x03,0x00,0x00,0x00,0x00,0x00, // Code for char T
  0xFF,0x07,0xFF,0x1F,0x00,0x38,0x00,0x30,0x00,0x30,0x00,0x30,0x00,0x30,0x00,0x38,0xFF,0x1F,0xFF,0x07,0x00,0x00, // Code for char U
  0x07,0x00,0x3F,0x00,0xF8,0x01,0xC0,0x0F,0x00,0x3E,0x00,0x3E,0xC0,0x0F,0xF8,0x01,0x3F,0x00,0x07,0x00,0x00,0x00, // Code for char V
  0xFF,0x3F,0xFF,0x3F,0x00,0x1C,0x00,0x06,0x80,0x03,0x80,0x03,0x00,0x06,0x00,0x1C,0xFF,0x3F,0xFF,0x3F,0x00,0x00, // Code for char W
  0x03,0x30,0x0F,0x3C,0x1C,0x0E,0x30,0x03,0xE0,0x01,0xE0,0x01,0x30,0x03,0x1C,0x0E,0x0F,0x3C,0x03,0x30,0x00,0x00, // Code for char X
  0x03,0x00,0x0F,0x00,0x3C,0x00,0xF0,0x00,0xC0,0x3F,0xC0,0x3F,0xF0,0x00,0x3C,0x00,0x0F,0x00,0x03,0x00,0x00,0x00, // Code for char Y
  0x03,0x30,0x03,0x3C,0x03,0x3E,0x03,0x33,0xC3,0x31,0xE3,0x30,0x33,0x30,0x1F,0x30,0x0F,0x30,0x03,0x30,0x00,0x00, // Code for char Z
  0x00,0x00,0x00,0x00,0xFF,0x3F,0xFF,0x3F,0x03,0x30,0x03,0x30,0x03,0x30,0x03,0x30,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char [
  0x0E,0x00,0x1C,0x00,0x38,0x00,0x70,0x00,0xE0,0x00,0xC0,0x01,0x80,0x03,0x00,0x07,0x00,0x0E,0x00,0x1C,0x00,0x18, // Code for <Backslash>
  0x00,0x00,0x00,0x00,0x03,0x30,0x03,0x30,0x03,0x30,0x03,0x30,0xFF,0x3F,0xFF,0x3F,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char ]
  0x60,0x00,0x70,0x00,0x38,0x00,0x1C,0x00,0x0E,0x00,0x07,0x00,0x0E,0x00,0x1C,0x00,0x38,0x00,0x70,0x00,0x60,0x00, // Code for char ^
  0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0, // Code for char _
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3E,0x00,0x7E,0x00,0x4E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char `
  0x00,0x1C,0x40,0x3E,0x60,0x33,0x60,0x33,0x60,0x33,0x60,0x33,0x60,0x33,0x60,0x33,0xE0,0x3F,0xC0,0x3F,0x00,0x00, // Code for char a
  0xFF,0x3F,0xFF,0x3F,0xC0,0x30,0x60,0x30,0x60,0x30,0x60,0x30,0x60,0x30,0xE0,0x38,0xC0,0x1F,0x80,0x0F,0x00,0x00, // Code for char b
  0x80,0x0F,0xC0,0x1F,0xE0,0x38,0x60,0x30,0x60,0x30,0x60,0x30,0x60,0x30,0x60,0x30,0xC0,0x18,0x80,0x08,0x00,0x00, // Code for char c
  0x80,0x0F,0xC0,0x1F,0xE0,0x38,0x60,0x30,0x60,0x30,0x60,0x30,0xE0,0x30,0xC0,0x30,0xFF,0x3F,0xFF,0x3F,0x00,0x00, // Code for char d
  0x80,0x0F,0xC0,0x1F,0xE0,0x3B,0x60,0x33,0x60,0x33,0x60,0x33,0x60,0x33,0x60,0x33,0xC0,0x13,0x80,0x01,0x00,0x00, // Code for char e
  0xC0,0x00,0xC0,0x00,0xFC,0x3F,0xFE,0x3F,0xC7,0x00,0xC3,0x00,0xC3,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char f
  0x80,0x03,0xC0,0xC7,0xE0,0xCE,0x60,0xCC,0x60,0xCC,0x60,0xCC,0x60,0xCC,0x60,0xE6,0xE0,0x7F,0xE0,0x3F,0x00,0x00, // Code for char g
  0xFF,0x3F,0xFF,0x3F,0xC0,0x00,0x60,0x00,0x60,0x00,0x60,0x00,0xE0,0x00,0xC0,0x3F,0x80,0x3F,0x00,0x00,0x00,0x00, // Code for char h
  0x00,0x00,0x00,0x00,0x00,0x30,0x60,0x30,0xEC,0x3F,0xEC,0x3F,0x00,0x30,0x00,0x30,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char i
  0x00,0x00,0x00,0x00,0x00,0x60,0x00,0xE0,0x00,0xC0,0x60,0xC0,0xEC,0xFF,0xEC,0x7F,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char j
  0x00,0x00,0xFF,0x3F,0xFF,0x3F,0x00,0x03,0x80,0x07,0xC0,0x0F,0xE0,0x1C,0x60,0x38,0x00,0x30,0x00,0x00,0x00,0x00, // Code for char k
  0x00,0x00,0x00,0x00,0x00,0x30,0x03,0x30,0xFF,0x3F,0xFF,0x3F,0x00,0x30,0x00,0x30,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char l
  0xE0,0x3F,0xC0,0x3F,0xE0,0x00,0xE0,0x00,0xC0,0x3F,0xC0,0x3F,0xE0,0x00,0xE0,0x00,0xC0,0x3F,0x80,0x3F,0x00,0x00, // Code for char m
  0x00,0x00,0xE0,0x3F,0xE0,0x3F,0x60,0x00,0x60,0x00,0x60,0x00,0x60,0x00,0xE0,0x00,0xC0,0x3F,0x80,0x3F,0x00,0x00, // Code for char n
  0x80,0x0F,0xC0,0x1F,0xE0,0x38,0x60,0x30,0x60,0x30,0x60,0x30,0x60,0x30,0xE0,0x38,0xC0,0x1F,0x80,0x0F,0x00,0x00, // Code for char o
  0xE0,0xFF,0xE0,0xFF,0x60,0x0C,0x60,0x18,0x60,0x18,0x60,0x18,0x60,0x18,0xE0,0x1C,0xC0,0x0F,0x80,0x07,0x00,0x00, // Code for char p
  0x80,0x07,0xC0,0x0F,0xE0,0x1C,0x60,0x18,0x60,0x18,0x60,0x18,0x60,0x18,0x60,0x0C,0xE0,0xFF,0xE0,0xFF,0x00,0x00, // Code for char q
  0x00,0x00,0xE0,0x3F,0xE0,0x3F,0xC0,0x00,0x60,0x00,0x60,0x00,0x60,0x00,0x60,0x00,0xE0,0x00,0xC0,0x00,0x00,0x00, // Code for char r
  0xC0,0x11,0xE0,0x33,0x60,0x33,0x60,0x33,0x60,0x33,0x60,0x33,0x60,0x3F,0x40,0x1E,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char s
  0x60,0x00,0x60,0x00,0xFE,0x1F,0xFE,0x3F,0x60,0x30,0x60,0x30,0x60,0x30,0x00,0x30,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char t
  0xE0,0x0F,0xE0,0x1F,0x00,0x38,0x00,0x30,0x00,0x30,0x00,0x30,0x00,0x30,0x00,0x18,0xE0,0x3F,0xE0,0x3F,0x00,0x00, // Code for char u
  0x60,0x00,0xE0,0x01,0x80,0x07,0x00,0x1E,0x00,0x38,0x00,0x38,0x00,0x1E,0x80,0x07,0xE0,0x01,0x60,0x00,0x00,0x00, // Code for char v
  0xE0,0x07,0xE0,0x1F,0x00,0x38,0x00,0x1C,0xE0,0x0F,0xE0,0x0F,0x00,0x1C,0x00,0x38,0xE0,0x1F,0xE0,0x07,0x00,0x00, // Code for char w
  0x60,0x30,0xE0,0x38,0xC0,0x1D,0x80,0x0F,0x00,0x07,0x80,0x0F,0xC0,0x1D,0xE0,0x38,0x60,0x30,0x00,0x00,0x00,0x00, // Code for char x
  0x00,0x00,0x60,0x00,0xE0,0x81,0x80,0xE7,0x00,0x7E,0x00,0x1E,0x80,0x07,0xE0,0x01,0x60,0x00,0x00,0x00,0x00,0x00, // Code for char y
  0x60,0x30,0x60,0x38,0x60,0x3C,0x60,0x36,0x60,0x33,0xE0,0x31,0xE0,0x30,0x60,0x30,0x20,0x30,0x00,0x00,0x00,0x00, // Code for char z
  0x00,0x00,0x80,0x00,0xC0,0x01,0xFC,0x1F,0x7E,0x3F,0x07,0x70,0x03,0x60,0x03,0x60,0x03,0x60,0x00,0x00,0x00,0x00, // Code for char {
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xBF,0x3F,0xBF,0x3F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // Code for char |
  0x00,0x00,0x03,0x60,0x03,0x60,0x03,0x60,0x07,0x70,0x7E,0x3F,0xFC,0x1F,0xC0,0x01,0x80,0x00,0x00,0x00,0x00,0x00, // Code for char }
  0x10,0x00,0x18,0x00,0x0C,0x00,0x04,0x00,0x0C,0x00,0x18,0x00,0x10,0x00,0x18,0x00,0x0C,0x00,0x04,0x00,0x00,0x00, // Code for char ~
  0x00,0x00,0x18,0x00,0x3C,0x00,0x66,0x00,0x66,0x00,0x3C,0x00,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00  // Code for <Degrees>
};

What platform are you using ? there are tons of libraries that can help you with this sort of stuff.. If I can find the dam project I will send you all the code.

shebu18 · « **Reply #7 on:** July 24, 2015, 12:07:01 pm »

Thanks for the reply, I use STM32L152RB chip and CooCox as IDE. Right now i managed to display standard font on the lcd but i wanted to display bigger numbers.

FreddyVictor · « **Reply #8 on:** July 24, 2015, 12:26:17 pm »

Quote from: shebu18 on July 24, 2015, 12:07:01 pm

Thanks for the reply, I use STM32L152RB chip and CooCox as IDE. Right now i managed to display standard font on the lcd but i wanted to display bigger numbers.

the font data posted above (in this thread) is a bigger size font.
best way to understand how to write these is to look at the extracted data - eg, for the number '5'
0x3F,0x0C,0x7F,0x1C,0x63,0x38,0x63,0x30,0x63,0x30,0x63,0x30,0x63,0x30,0x63,0x30,0xE3,0x38,0xC3,0x1F,0x83,0x0F, // 5
is (ignore the border I added):

Code: [Select]

+----------------+
|  111111    11  |
| 1111111   111  |
| 11   11  111   |
| 11   11  11    |
| 11   11  11    |
| 11   11  11    |
| 11   11  11    |
| 11   11  11    |
|111   11  111   |
|11    11   11111|
|1     11    1111|
+----------------+

so, to display this correctly, you must write odd bytes out, then re-position to write position and and write the even bytes

the same technique can be used for even bigger fonts

amyk · « **Reply #9 on:** July 24, 2015, 02:12:39 pm »

Wouldn't it be better to just reformat the font data so you can write it to the display in a simpler order?

diyaudio · « **Reply #10 on:** July 25, 2015, 06:10:21 pm »

Right, as promised find an attachment with the font memory maps for small, medium and large size fonts as well as the Nokia 5110 driver (I used in my STM32F103 project).
I even through in the ability to read images as well (attached is a memory map of the open source logo see font.h)

Usage will look like this.

Code: [Select]


    // Draw open source logo 
    LCD5110_clear();
    LCD5110_drawBitmap(14, 0, oshw_logo, 56, 48);
    Delay_ms(500);
    Delay_ms(500);
	
     // Now draw some text, LCD5110_SetFont will internally select large font, of course its not the best way so change the driver as you wish.	
    char buffer_int [7];
    char buffer_float [7];

    sprintf(buffer_int, "%d", 50);
    sprintf(buffer_float, "%.4f", 0.5);
 
     
    LCD5110_SetFont(true);
    LCD5110_num_string(buffer_int, 0, 0);
            
    LCD5110_SetFont(true);
    LCD5110_num_string(buffer_float, 0, 2);

shebu18 · « **Reply #11 on:** July 26, 2015, 06:08:10 am »

Thank you for the example and font files. Do you make float or int to string conversions on your stm32? I can not find a valid example and library for this.

briselec · « **Reply #12 on:** July 28, 2015, 10:25:32 am »

This is what I use for itoa. Found it somewhere on the net.

Code: [Select]

char *itoa(int value, char *result, int base) {
    // check that the base if valid
    if(base < 2 || base > 36){
        *result = '\0';
        return result;
    }

    int tmp_value;
    char *ptr = result, *ptr1 = result, tmp_char;

    do {
        tmp_value = value;
        value /= base;
        *ptr++ = "zyxwvutsrqponmlkjihgfedcba9876543210123456789abcdefghijklmnopqrstuvwxyz" [35 + (tmp_value - value * base)];
    } while(value);

    // Apply negative sign
    if (tmp_value < 0)
        *ptr++ = '-';
    *ptr-- = '\0';
    while(ptr1 < ptr) {
        tmp_char = *ptr;
        *ptr--= *ptr1;
        *ptr1++ = tmp_char;
    }
    return result;
}

shebu18 · « **Reply #13 on:** October 10, 2015, 02:22:42 pm »

Something got me thinking.

Would it be better to use a array in memory and modify that or write directly to the display. If i use the array than i would need to use a timer to update the display. Would i harm the display if i write to it that often?(24/sec) Would i harm a display if i do that to it?

Thanks

amyk · « **Reply #14 on:** October 10, 2015, 03:19:10 pm »

Not for a small embedded system with a display like this. It has its own memory, don't waste time copying and keeping duplicate data around.

(In fact you can - and I've actually seen this before - use a small amount of the memory in the display if the main controller doesn't have enough RAM.)


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Author Topic: STM32 Nokia 5110 Large Font Issue (Read 18078 times)

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