#include "stm32l100c_discovery.h"
#include "ssd1306.h"
// Write command to OLED
void WriteCommand(unsigned char command)
{
SSD_A0_Low();
SPI_SendByte(command);
SPI_Wait();
}
// Write data to OLED
void WriteData(unsigned char data)
SSD_A0_High();
SPI_SendByte(data);
// Initialize OLED
void ssd1306_Init(void)
/* Generate a reset */
SSD_Reset_Low();
uint32_t i;
for(i=5000; i>1; i--)
SSD_Reset_High();
WriteCommand(0xAE);
WriteCommand(0xD5);
WriteCommand(0x80);
WriteCommand(0xA8);
WriteCommand(0x1F);
WriteCommand(0xD3);
WriteCommand(0x00);
WriteCommand(0x40 | 0x00); // line #0
WriteCommand(0x8D);
WriteCommand(0x14); //10 or 14 if not externalvcc
WriteCommand(0x20);
WriteCommand(0xA0 | 0x1); // segremap
WriteCommand(0xC8); // comscandep
// WriteCommand(0xA0 | 0x1); // segremap (normal)
WriteCommand(0xA0); // segremap (flip)
// WriteCommand(0xC8); // comscandec (normal)
WriteCommand(0xC0); // comscandec (flip)
WriteCommand(0xDA); // setcompins
WriteCommand(0x02);
WriteCommand(0x81); // contrast
WriteCommand(0x0F); // contrast value. 8f is a good one.
WriteCommand(0xD9);
WriteCommand(0xF1); //22 or F1 if not externalvcc
WriteCommand(0xDB);
WriteCommand(0x40);
WriteCommand(0xA4); // dispalyallon_resume
WriteCommand(0xA6); // normaldisplay
WriteCommand(0xAF); // display on
// Times New Roman font
const char fontData[240][5] =
{ // Refer to "Times New Roman" Font Database
// Basic Characters
{0x00,0x00,0x00,0x00,0x00}, // ( 0) - 0x0020 No-Break Space
{0x00,0x00,0x4F,0x00,0x00}, // ( 1) ! - 0x0021 Exclamation Mark
{0x00,0x07,0x00,0x07,0x00}, // ( 2) " - 0x0022 Quotation Mark
{0x14,0x7F,0x14,0x7F,0x14}, // ( 3) # - 0x0023 Number Sign
{0x24,0x2A,0x7F,0x2A,0x12}, // ( 4) $ - 0x0024 Dollar Sign
{0x23,0x13,0x08,0x64,0x62}, // ( 5) % - 0x0025 Percent Sign
{0x36,0x49,0x55,0x22,0x50}, // ( 6) & - 0x0026 Ampersand
{0x00,0x05,0x03,0x00,0x00}, // ( 7) ' - 0x0027 Apostrophe
{0x00,0x1C,0x22,0x41,0x00}, // ( 8) ( - 0x0028 Left Parenthesis
{0x00,0x41,0x22,0x1C,0x00}, // ( 9) ) - 0x0029 Right Parenthesis
{0x14,0x08,0x3E,0x08,0x14}, // ( 10) * - 0x002A Asterisk
{0x08,0x08,0x3E,0x08,0x08}, // ( 11) + - 0x002B Plus Sign
{0x00,0x50,0x30,0x00,0x00}, // ( 12) , - 0x002C Comma
{0x08,0x08,0x08,0x08,0x08}, // ( 13) - - 0x002D Hyphen-Minus
{0x00,0x60,0x60,0x00,0x00}, // ( 14) . - 0x002E Full Stop
{0x20,0x10,0x08,0x04,0x02}, // ( 15) / - 0x002F Solidus
{0x3E,0x51,0x49,0x45,0x3E}, // ( 16) 0 - 0x0030 Digit Zero
{0x00,0x42,0x7F,0x40,0x00}, // ( 17) 1 - 0x0031 Digit One
{0x42,0x61,0x51,0x49,0x46}, // ( 18) 2 - 0x0032 Digit Two
{0x21,0x41,0x45,0x4B,0x31}, // ( 19) 3 - 0x0033 Digit Three
{0x18,0x14,0x12,0x7F,0x10}, // ( 20) 4 - 0x0034 Digit Four
{0x27,0x45,0x45,0x45,0x39}, // ( 21) 5 - 0x0035 Digit Five
{0x3C,0x4A,0x49,0x49,0x30}, // ( 22) 6 - 0x0036 Digit Six
{0x01,0x71,0x09,0x05,0x03}, // ( 23) 7 - 0x0037 Digit Seven
{0x36,0x49,0x49,0x49,0x36}, // ( 24) 8 - 0x0038 Digit Eight
{0x06,0x49,0x49,0x29,0x1E}, // ( 25) 9 - 0x0039 Dight Nine
{0x00,0x36,0x36,0x00,0x00}, // ( 26) : - 0x003A Colon
{0x00,0x56,0x36,0x00,0x00}, // ( 27) ; - 0x003B Semicolon
{0x08,0x14,0x22,0x41,0x00}, // ( 28) < - 0x003C Less-Than Sign
{0x14,0x14,0x14,0x14,0x14}, // ( 29) = - 0x003D Equals Sign
{0x00,0x41,0x22,0x14,0x08}, // ( 30) > - 0x003E Greater-Than Sign
{0x02,0x01,0x51,0x09,0x06}, // ( 31) ? - 0x003F Question Mark
{0x32,0x49,0x79,0x41,0x3E}, // ( 32) @ - 0x0040 Commercial At
{0x7E,0x11,0x11,0x11,0x7E}, // ( 33) A - 0x0041 Latin Capital Letter A
{0x7F,0x49,0x49,0x49,0x36}, // ( 34) B - 0x0042 Latin Capital Letter B
{0x3E,0x41,0x41,0x41,0x22}, // ( 35) C - 0x0043 Latin Capital Letter C
{0x7F,0x41,0x41,0x22,0x1C}, // ( 36) D - 0x0044 Latin Capital Letter D
{0x7F,0x49,0x49,0x49,0x41}, // ( 37) E - 0x0045 Latin Capital Letter E
{0x7F,0x09,0x09,0x09,0x01}, // ( 38) F - 0x0046 Latin Capital Letter F
{0x3E,0x41,0x49,0x49,0x7A}, // ( 39) G - 0x0047 Latin Capital Letter G
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