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AKM_Demo_Board/Project/Application/oled_ssd1306/ssd1306.c

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#include "ssd1306.h"
#include "font.h"
//#include "font8x8.h"
#include "ssd1306_i2c.h"
extern const unsigned char gImage_background[512];
extern const unsigned char gImage_CAMMSYS_Log[512];
extern const unsigned char gImage_number[12][88];
// @const List of init commands with arguments by Adafruit
// @link https://github.com/adafruit/Adafruit_SSD1306
const uint8_t INIT_SSD1306_ADAFRUIT[] = {
17, // number of initializers
SSD1306_DISPLAY_OFF, 0, // 0xAE / Set Display OFF
SSD1306_SET_OSC_FREQ, 1, 0x80, // 0xD5 / 0x80 => D=1; DCLK = Fosc / D <=> DCLK = Fosc
SSD1306_SET_MUX_RATIO, 1, 0x1F, // 0xA8 / 0x3F (64MUX) for 128 x 64 version
// / 0x1F (32MUX) for 128 x 32 version
SSD1306_DISPLAY_OFFSET, 1, 0x00, // 0xD3
SSD1306_SET_START_LINE, 0, // 0x40
SSD1306_SET_CHAR_REG, 1, 0x14, // 0x8D / Enable charge pump during display on
SSD1306_MEMORY_ADDR_MODE, 1, 0x00, // 0x20 / Set Memory Addressing Mode
// 0x00 / Horizontal Addressing Mode
// 0x01 / Vertical Addressing Mode
// 0x02 / Page Addressing Mode (RESET)
SSD1306_SEG_REMAP_OP, 0, // 0xA0 / remap 0xA1
SSD1306_COM_SCAN_DIR_OP, 0, // 0xC8
SSD1306_COM_PIN_CONF, 0, 0x02, // 0xDA / 0x12 - Disable COM Left/Right remap, Alternative COM pin configuration
// 0x12 - for 128 x 64 version
// 0x02 - for 128 x 32 version
SSD1306_SET_CONTRAST, 1, 0x8F, // 0x81 / 0x8F - reset value (max 0xFF)
SSD1306_SET_PRECHARGE, 1, 0xc2, // 0xD9 / higher value less blinking
// 0xC2, 1st phase = 2 DCLK, 2nd phase = 13 DCLK
SSD1306_VCOM_DESELECT, 1, 0x40, // 0xDB / Set V COMH Deselect, reset value 0x22 = 0,77xUcc
SSD1306_DIS_ENT_DISP_ON, 0, // 0xA4
SSD1306_DIS_NORMAL, 0, // 0xA6
SSD1306_DEACT_SCROLL, 0, // 0x2E
SSD1306_DISPLAY_ON, 0 // 0xAF / Set Display ON
};
// @const uint8_t - List of init commands according to datasheet SSD1306
const uint8_t INIT_SSD1306[] = {
18, // number of initializers
0xE4,0,
SSD1306_DISPLAY_OFF, 0, // 0xAE = Set Display OFF
SSD1306_SET_MUX_RATIO, 1, 0x1F, // 0xA8 - 0x3F for 128 x 64 version (64MUX)
// - 0x1F for 128 x 32 version (32MUX)
SSD1306_MEMORY_ADDR_MODE, 1, 0x00, // 0x20 = Set Memory Addressing Mode
// 0x00 - Horizontal Addressing Mode
// 0x01 - Vertical Addressing Mode
// 0x02 - Page Addressing Mode (RESET)
SSD1306_SET_START_LINE, 0, // 0x40
SSD1306_DISPLAY_OFFSET, 1, 0x00, // 0xD3
SSD1306_SEG_REMAP_OP, 0, // 0xA0 / remap 0xA1
SSD1306_COM_SCAN_DIR_OP, 0, // 0xC0 / remap 0xC8
SSD1306_COM_PIN_CONF, 1, 0x02, // 0xDA, 0x12 - Disable COM Left/Right remap, Alternative COM pin configuration
// 0x12 - for 128 x 64 version
// 0x02 - for 128 x 32 version
SSD1306_SET_CONTRAST, 1, 0x7F, // 0x81, 0x7F - reset value (max 0xFF)
SSD1306_DIS_ENT_DISP_ON, 0, // 0xA4
SSD1306_DIS_NORMAL, 0, // 0xA6
SSD1306_SET_OSC_FREQ, 1, 0x80, // 0xD5, 0x80 => D=1; DCLK = Fosc / D <=> DCLK = Fosc
SSD1306_SET_PRECHARGE, 1, 0xc2, // 0xD9, higher value less blinking
// 0xC2, 1st phase = 2 DCLK, 2nd phase = 13 DCLK
SSD1306_VCOM_DESELECT, 1, 0x20, // Set V COMH Deselect, reset value 0x22 = 0,77xUcc
SSD1306_SET_CHAR_REG, 1, 0x14, // 0x8D, Enable charge pump during display on
SSD1306_DEACT_SCROLL, 0, // 0x2E
SSD1306_DISPLAY_ON, 0 // 0xAF = Set Display ON
};
unsigned int _counter;
// @var array Chache memory Lcd 8 * 128 = 1024
static uint8_t cacheMemLcd[CACHE_SIZE_MEM];
static uint8_t reverse_bits(uint8_t num);
/**
* +------------------------------------------------------------------------------------+
* |== PRIVATE FUNCTIONS ===============================================================|
* +------------------------------------------------------------------------------------+
*/
/**
* @brief SSD1306 Init
*
* @param uint8_t address
*
* @return uint8_t
*/
uint8_t SSD1306_Init (uint8_t address)
{
const uint8_t * list = INIT_SSD1306;
uint8_t status = INIT_STATUS; // init status
uint8_t arguments;
uint8_t commands = *list++;
uint8_t writedata;
status = SSD1306_Send_StartAndSLAW (address);
if (SSD1306_SUCCESS != status) {
return status;
}
while (commands--) {
// Command
// -----------------------------------------------------------------------------------
writedata = *list++;
status = SSD1306_Send_Command (writedata);
if (SSD1306_SUCCESS != status){
return status;
}
// Arguments
// -----------------------------------------------------------------------------------
//arguments = pgm_read_byte (list++);
arguments = *list++;;
while (arguments--) {
writedata = *list++;
status = SSD1306_Send_Command (writedata); // argument
if (SSD1306_SUCCESS != status) {
return status;
}
}
}
TWI_Stop ();
return SSD1306_SUCCESS;
}
/**
* @brief SSD1306 Send Start and SLAW request
*
* @param uint8_t
*
* @return uint8_t
*/
uint8_t SSD1306_Send_StartAndSLAW (uint8_t address)
{
uint8_t status = INIT_STATUS;
status = TWI_MT_Start ();
if (SSD1306_SUCCESS != status)
{
TWI_Stop();
return status;
}
// TWI: send SLAW
// -------------------------------------------------------------------------------------
status = TWI_MT_Send_SLAW (address);
if (SSD1306_SUCCESS != status)
{
TWI_Stop();
return status;
}
return SSD1306_SUCCESS;
}
/**
* @brief SSD1306 Send command
*
* @param uint8_t command
*
* @return uint8_t
*/
uint8_t SSD1306_Send_Command (uint8_t command)
{
uint8_t status = INIT_STATUS;
// send control byte
// -------------------------------------------------------------------------------------
status = TWI_MT_Send_Data (SSD1306_COMMAND);
if (SSD1306_SUCCESS != status)
{
TWI_Stop();
return status;
}
// send command
// -------------------------------------------------------------------------------------
status = TWI_MT_Send_Data (command);
if (SSD1306_SUCCESS != status)
{
TWI_Stop();
return status;
}
return SSD1306_SUCCESS;
}
/**
* +------------------------------------------------------------------------------------+
* |== PUBLIC FUNCTIONS ================================================================|
* +------------------------------------------------------------------------------------+
*/
/**
* @brief SSD1306 Normal colors
*
* @param uint8_t address
*
* @return uint8_t
*/
uint8_t SSD1306_NormalScreen (uint8_t address)
{
uint8_t status = INIT_STATUS;
// TWI: start & SLAW
// -------------------------------------------------------------------------------------
status = SSD1306_Send_StartAndSLAW (address);
if (SSD1306_SUCCESS != status)
{
TWI_Stop();
return status;
}
// send command
// -------------------------------------------------------------------------------------
status = SSD1306_Send_Command (SSD1306_DIS_NORMAL);
if (SSD1306_SUCCESS != status)
{
TWI_Stop();
return status;
}
// TWI: Stop
// -------------------------------------------------------------------------------------
TWI_Stop ();
return SSD1306_SUCCESS;
}
/**
* @brief SSD1306 Inverse colors
*
* @param uint8_t address
*
* @return uint8_t
*/
uint8_t SSD1306_InverseScreen (uint8_t address)
{
uint8_t status = INIT_STATUS;
// TWI: start & SLAW
// -------------------------------------------------------------------------------------
status = SSD1306_Send_StartAndSLAW (address);
if (SSD1306_SUCCESS != status)
{
TWI_Stop();
return status;
}
// send command
// -------------------------------------------------------------------------------------
status = SSD1306_Send_Command (SSD1306_DIS_INVERSE);
if (SSD1306_SUCCESS != status)
{
TWI_Stop();
return status;
}
// TWI: Stop
// -------------------------------------------------------------------------------------
TWI_Stop ();
return SSD1306_SUCCESS;
}
uint8_t SSD1306_UpdateScreen (uint8_t address)
{
uint8_t status = INIT_STATUS;
uint16_t i = 0;
SSD1306_Send_StartAndSLAW (address);
status = SSD1306_Send_Command (0xB0);
status = SSD1306_Send_Command (SSD1306_SET_PAGE_ADDR); // argument
status = SSD1306_Send_Command (0x00); // argument
status = SSD1306_Send_Command (0x03); // argument
TWI_Stop ();
// TWI: start & SLAW
// -------------------------------------------------------------------------------------
status = SSD1306_Send_StartAndSLAW (address);
if (SSD1306_SUCCESS != status)
{
TWI_Stop();
return status;
}
// control byte data stream
// -------------------------------------------------------------------------------------
status = TWI_MT_Send_Data (SSD1306_DATA_STREAM);
if (SSD1306_SUCCESS != status)
{
TWI_Stop();
return status;
}
// send cache memory lcd
// -------------------------------------------------------------------------------------
while (i < CACHE_SIZE_MEM) {
status = TWI_MT_Send_Data (reverse_bits(cacheMemLcd[i++])); // send data
if (SSD1306_SUCCESS != status)
{
TWI_Stop();
return status;
}
}
// stop TWI
// -------------------------------------------------------------------------------------
TWI_Stop ();
return SSD1306_SUCCESS;
}
/**
* @brief SSD1306 Clear screen
*
* @param void
*
* @return void
*/
void SSD1306_ClearScreen (void)
{
memset (cacheMemLcd, 0x00, CACHE_SIZE_MEM); // null cache memory lcd
//SSD1306_DrawBackGround();
//SSD1306_DrawBackGround_Log();
}
/**
* @brief SSD1306 Set position
*
* @param uint8_t column -> 0 ... 127
* @param uint8_t page -> 0 ... 7 or 3
*
* @return void
*/
void SSD1306_SetPosition (uint8_t x, uint8_t y)
{
_counter = x + (y << 7); // update counter
}
/**
* @brief SSD1306 Update text poisition - this ensure that character will not be divided at the end of row,
* the whole character will be depicted on the new row
*
* @param void
*
* @return uint8_t
*/
uint8_t SSD1306_UpdatePosition (void)
{
uint8_t y = _counter >> 7; // y / 8
uint8_t x = _counter - (y << 7); // y % 8
uint8_t x_new = x + CHARS_COLS_LENGTH + 1; // x + character length + 1
if (x_new > END_COLUMN_ADDR) { // check position
if (y > END_PAGE_ADDR) { // if more than allowable number of pages
return SSD1306_ERROR; // return out of range
} else if (y < (END_PAGE_ADDR-1)) { // if x reach the end but page in range
_counter = ((++y) << 7); // update
}
}
return SSD1306_SUCCESS;
}
/**
* @brief SSD1306 Draw character
*
* @param char character
*
* @return uint8_t
*/
uint8_t SSD1306_DrawChar (char character)
{
uint8_t i = 0;
if (SSD1306_UpdatePosition () == SSD1306_ERROR) {
return SSD1306_ERROR;
}
while (i < CHARS_COLS_LENGTH) {
cacheMemLcd[_counter++] = reverse_bits(FONTS[character-32][i++]);
}
_counter++;
return SSD1306_SUCCESS;
}
/**
* @brief SSD1306 Draw String
*
* @param char * string
*
* @return void
*/
void SSD1306_DrawString (char *str)
{
int i = 0;
while (str[i] != '\0') {
SSD1306_DrawChar (str[i++]);
}
}
/**
* @brief Draw pixel
*
* @param uint8_t x -> 0 ... MAX_X
* @param uint8_t y -> 0 ... MAX_Y
*
* @return uint8_t
*/
uint8_t SSD1306_DrawPixel (uint8_t x, uint8_t y)
{
uint8_t page = 0;
uint8_t pixel = 0;
if ((x > MAX_X) || (y > MAX_Y)) { // if out of range
return SSD1306_ERROR; // out of range
}
page = y >> 3; // find page (y / 8)
pixel = 1 << (y - (page << 3)); // which pixel (y % 8)
_counter = x + (page << 7); // update counter
cacheMemLcd[_counter++] |= pixel; // save pixel
return SSD1306_SUCCESS;
}
/**
* @brief Draw line by Bresenham algoritm
*
* @param uint8_t x start position / 0 <= cols <= MAX_X-1
* @param uint8_t x end position / 0 <= cols <= MAX_X-1
* @param uint8_t y start position / 0 <= rows <= MAX_Y-1
* @param uint8_t y end position / 0 <= rows <= MAX_Y-1
*
* @return uint8_t
*/
uint8_t SSD1306_DrawLine (uint8_t x1, uint8_t x2, uint8_t y1, uint8_t y2)
{
int16_t D; // determinant
int16_t delta_x, delta_y; // deltas
int16_t trace_x = 1, trace_y = 1; // steps
delta_x = x2 - x1; // delta x
delta_y = y2 - y1; // delta y
if (delta_x < 0) { // check if x2 > x1
delta_x = -delta_x; // negate delta x
trace_x = -trace_x; // negate step x
}
if (delta_y < 0) { // check if y2 > y1
delta_y = -delta_y; // negate detla y
trace_y = -trace_y; // negate step y
}
// Bresenham condition for m < 1 (dy < dx)
// -------------------------------------------------------------------------------------
if (delta_y < delta_x) {
D = (delta_y << 1) - delta_x; // calculate determinant
SSD1306_DrawPixel (x1, y1); // draw first pixel
while (x1 != x2) { // check if x1 equal x2
x1 += trace_x; // update x1
if (D >= 0) { // check if determinant is positive
y1 += trace_y; // update y1
D -= 2*delta_x; // update determinant
}
D += 2*delta_y; // update deteminant
SSD1306_DrawPixel (x1, y1); // draw next pixel
}
// for m > 1 (dy > dx)
// -------------------------------------------------------------------------------------
} else {
D = delta_y - (delta_x << 1); // calculate determinant
SSD1306_DrawPixel (x1, y1); // draw first pixel
while (y1 != y2) { // check if y2 equal y1
y1 += trace_y; // update y1
if (D <= 0) { // check if determinant is positive
x1 += trace_x; // update y1
D += 2*delta_y; // update determinant
}
D -= 2*delta_x; // update deteminant
SSD1306_DrawPixel (x1, y1); // draw next pixel
}
}
return SSD1306_SUCCESS;
}
uint8_t SSD1306_DrawBackGround(void)
{
memcpy(cacheMemLcd, gImage_background, CACHE_SIZE_MEM); // null cache memory lcd
return SSD1306_SUCCESS;
}
uint8_t SSD1306_DrawBackGround_Log(void)
{
memcpy(cacheMemLcd, gImage_CAMMSYS_Log, CACHE_SIZE_MEM); // null cache memory lcd
return SSD1306_SUCCESS;
}
uint8_t SSD1306_DrawBackGround_LeftShift(uint8_t Shift)
{
uint8_t x, y;
uint32_t Index;
for(y = 0 ; y <= END_PAGE_ADDR ; y++)
{
for(x = 0 ; x < (MAX_X+1) ; x++)
{
Index = (y* MAX_X) + x;
cacheMemLcd[Index] = cacheMemLcd[Index+Shift];
cacheMemLcd[Index+Shift] = 0;
}
}
cacheMemLcd[127] = 0;
cacheMemLcd[255] = 0;
cacheMemLcd[383] = 0;
cacheMemLcd[511] = 0;
return SSD1306_SUCCESS;
}
#define DRAW_NUM_WIDTH 22
#define DRAW_NUM_H_H_X 2
#define DRAW_NUM_H_H_L 24
#define DRAW_NUM_L_H_X 53
#define DRAW_NUM_L_H_L 75
uint8_t SSD1306_Draw_Temperature(uint16_t Temperature)
{
uint8_t Index_HH;
uint8_t Index_HL;
uint8_t Index_LH;
uint8_t Index_LL;
uint8_t Temp_H;
uint8_t Temp_L;
uint8_t x;
if(Temperature > TEMPERATURE_MAX || Temperature < TEMPERATURE_MIN)
{
Index_HH = 11;
Index_HL = 11;
Index_LH = 11;
Index_LL = 11;
}
else
{
Temp_H = Temperature / 100;
Index_HH = Temp_H / 10;
if(Index_HH == 0)
Index_HH = 10;
Index_HL = Temp_H % 10;
Temp_L = Temperature % 100;
Index_LH = Temp_L / 10;
Index_LL = Temp_L % 10;
}
for(x = 0 ; x < DRAW_NUM_WIDTH ; x++)
{
cacheMemLcd[DRAW_NUM_H_H_X+x] = gImage_number[Index_HH][x];
cacheMemLcd[DRAW_NUM_H_H_X+128+x] = gImage_number[Index_HH][22+x];
cacheMemLcd[DRAW_NUM_H_H_X+(128*2)+x] = gImage_number[Index_HH][44+x];
cacheMemLcd[DRAW_NUM_H_H_X+(128*3)+x] = gImage_number[Index_HH][66+x];
cacheMemLcd[DRAW_NUM_H_H_L+x] = gImage_number[Index_HL][x];
cacheMemLcd[DRAW_NUM_H_H_L+128+x] = gImage_number[Index_HL][22+x];
cacheMemLcd[DRAW_NUM_H_H_L+(128*2)+x] = gImage_number[Index_HL][44+x];
cacheMemLcd[DRAW_NUM_H_H_L+(128*3)+x] = gImage_number[Index_HL][66+x];
cacheMemLcd[DRAW_NUM_L_H_X+x] = gImage_number[Index_LH][x];
cacheMemLcd[DRAW_NUM_L_H_X+128+x] = gImage_number[Index_LH][22+x];
cacheMemLcd[DRAW_NUM_L_H_X+(128*2)+x] = gImage_number[Index_LH][44+x];
cacheMemLcd[DRAW_NUM_L_H_X+(128*3)+x] = gImage_number[Index_LH][66+x];
cacheMemLcd[DRAW_NUM_L_H_L+x] = gImage_number[Index_LL][x];
cacheMemLcd[DRAW_NUM_L_H_L+128+x] = gImage_number[Index_LL][22+x];
cacheMemLcd[DRAW_NUM_L_H_L+(128*2)+x] = gImage_number[Index_LL][44+x];
cacheMemLcd[DRAW_NUM_L_H_L+(128*3)+x] = gImage_number[Index_LL][66+x];
}
return SSD1306_SUCCESS;
}
static uint8_t reverse_bits(uint8_t num)
{
uint8_t reversed = 0;
for (int i = 0; i < 8; i++) {
reversed |= ((num >> i) & 1) << (7 - i);
}
return reversed;
}
#if 0
const uint8_t BasicFont[][8] = {
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x5F,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x07,0x00,0x07,0x00,0x00,0x00},
{0x00,0x3C,0x3C,0x3C,0x3C,0x3C,0x3C,0x00},
{0x00,0x24,0x2A,0x7F,0x2A,0x12,0x00,0x00},
{0x00,0x23,0x13,0x08,0x64,0x62,0x00,0x00},
{0x00,0x36,0x49,0x55,0x22,0x50,0x00,0x00},
{0x00,0x00,0x05,0x03,0x00,0x00,0x00,0x00},
{0x00,0x1C,0x22,0x41,0x00,0x00,0x00,0x00},
{0x00,0x41,0x22,0x1C,0x00,0x00,0x00,0x00},
{0x00,0x08,0x2A,0x1C,0x2A,0x08,0x00,0x00},
{0x00,0x08,0x08,0x3E,0x08,0x08,0x00,0x00},
{0x00,0xA0,0x60,0x00,0x00,0x00,0x00,0x00},
{0x00,0x08,0x08,0x08,0x08,0x08,0x00,0x00},
{0x00,0x60,0x60,0x00,0x00,0x00,0x00,0x00},
{0x00,0x20,0x10,0x08,0x04,0x02,0x00,0x00},
{0x00,0x3E,0x51,0x49,0x45,0x3E,0x00,0x00},
{0x00,0x00,0x42,0x7F,0x40,0x00,0x00,0x00},
{0x00,0x62,0x51,0x49,0x49,0x46,0x00,0x00},
{0x00,0x22,0x41,0x49,0x49,0x36,0x00,0x00},
{0x00,0x18,0x14,0x12,0x7F,0x10,0x00,0x00},
{0x00,0x27,0x45,0x45,0x45,0x39,0x00,0x00},
{0x00,0x3C,0x4A,0x49,0x49,0x30,0x00,0x00},
{0x00,0x01,0x71,0x09,0x05,0x03,0x00,0x00},
{0x00,0x36,0x49,0x49,0x49,0x36,0x00,0x00},
{0x00,0x06,0x49,0x49,0x29,0x1E,0x00,0x00},
{0x00,0x00,0x36,0x36,0x00,0x00,0x00,0x00},
{0x00,0x00,0xAC,0x6C,0x00,0x00,0x00,0x00},
{0x00,0x08,0x14,0x22,0x41,0x00,0x00,0x00},
{0x00,0x14,0x14,0x14,0x14,0x14,0x00,0x00},
{0x00,0x41,0x22,0x14,0x08,0x00,0x00,0x00},
{0x00,0x02,0x01,0x51,0x09,0x06,0x00,0x00},
{0x00,0x32,0x49,0x79,0x41,0x3E,0x00,0x00},
{0x00,0x7E,0x09,0x09,0x09,0x7E,0x00,0x00},
{0x00,0x7F,0x49,0x49,0x49,0x36,0x00,0x00},
{0x00,0x3E,0x41,0x41,0x41,0x22,0x00,0x00},
{0x00,0x7F,0x41,0x41,0x22,0x1C,0x00,0x00},
{0x00,0x7F,0x49,0x49,0x49,0x41,0x00,0x00},
{0x00,0x7F,0x09,0x09,0x09,0x01,0x00,0x00},
{0x00,0x3E,0x41,0x41,0x51,0x72,0x00,0x00},
{0x00,0x7F,0x08,0x08,0x08,0x7F,0x00,0x00},
{0x00,0x41,0x7F,0x41,0x00,0x00,0x00,0x00},
{0x00,0x20,0x40,0x41,0x3F,0x01,0x00,0x00},
{0x00,0x7F,0x08,0x14,0x22,0x41,0x00,0x00},
{0x00,0x7F,0x40,0x40,0x40,0x40,0x00,0x00},
{0x00,0x7F,0x02,0x0C,0x02,0x7F,0x00,0x00},
{0x00,0x7F,0x04,0x08,0x10,0x7F,0x00,0x00},
{0x00,0x3E,0x41,0x41,0x41,0x3E,0x00,0x00},
{0x00,0x7F,0x09,0x09,0x09,0x06,0x00,0x00},
{0x00,0x3E,0x41,0x51,0x21,0x5E,0x00,0x00},
{0x00,0x7F,0x09,0x19,0x29,0x46,0x00,0x00},
{0x00,0x26,0x49,0x49,0x49,0x32,0x00,0x00},
{0x00,0x01,0x01,0x7F,0x01,0x01,0x00,0x00},
{0x00,0x3F,0x40,0x40,0x40,0x3F,0x00,0x00},
{0x00,0x1F,0x20,0x40,0x20,0x1F,0x00,0x00},
{0x00,0x3F,0x40,0x38,0x40,0x3F,0x00,0x00},
{0x00,0x63,0x14,0x08,0x14,0x63,0x00,0x00},
{0x00,0x03,0x04,0x78,0x04,0x03,0x00,0x00},
{0x00,0x61,0x51,0x49,0x45,0x43,0x00,0x00},
{0x00,0x7F,0x41,0x41,0x00,0x00,0x00,0x00},
{0x00,0x02,0x04,0x08,0x10,0x20,0x00,0x00},
{0x00,0x41,0x41,0x7F,0x00,0x00,0x00,0x00},
{0x00,0x04,0x02,0x01,0x02,0x04,0x00,0x00},
{0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00},
{0x00,0x01,0x02,0x04,0x00,0x00,0x00,0x00},
{0x00,0x20,0x54,0x54,0x54,0x78,0x00,0x00},
{0x00,0x7F,0x48,0x44,0x44,0x38,0x00,0x00},
{0x00,0x38,0x44,0x44,0x28,0x00,0x00,0x00},
{0x00,0x38,0x44,0x44,0x48,0x7F,0x00,0x00},
{0x00,0x38,0x54,0x54,0x54,0x18,0x00,0x00},
{0x00,0x08,0x7E,0x09,0x02,0x00,0x00,0x00},
{0x00,0x18,0xA4,0xA4,0xA4,0x7C,0x00,0x00},
{0x00,0x7F,0x08,0x04,0x04,0x78,0x00,0x00},
{0x00,0x00,0x7D,0x00,0x00,0x00,0x00,0x00},
{0x00,0x80,0x84,0x7D,0x00,0x00,0x00,0x00},
{0x00,0x7F,0x10,0x28,0x44,0x00,0x00,0x00},
{0x00,0x41,0x7F,0x40,0x00,0x00,0x00,0x00},
{0x00,0x7C,0x04,0x18,0x04,0x78,0x00,0x00},
{0x00,0x7C,0x08,0x04,0x7C,0x00,0x00,0x00},
{0x00,0x38,0x44,0x44,0x38,0x00,0x00,0x00},
{0x00,0xFC,0x24,0x24,0x18,0x00,0x00,0x00},
{0x00,0x18,0x24,0x24,0xFC,0x00,0x00,0x00},
{0x00,0x00,0x7C,0x08,0x04,0x00,0x00,0x00},
{0x00,0x48,0x54,0x54,0x24,0x00,0x00,0x00},
{0x00,0x04,0x7F,0x44,0x00,0x00,0x00,0x00},
{0x00,0x3C,0x40,0x40,0x7C,0x00,0x00,0x00},
{0x00,0x1C,0x20,0x40,0x20,0x1C,0x00,0x00},
{0x00,0x3C,0x40,0x30,0x40,0x3C,0x00,0x00},
{0x00,0x44,0x28,0x10,0x28,0x44,0x00,0x00},
{0x00,0x1C,0xA0,0xA0,0x7C,0x00,0x00,0x00},
{0x00,0x44,0x64,0x54,0x4C,0x44,0x00,0x00},
{0x00,0x08,0x36,0x41,0x00,0x00,0x00,0x00},
{0x00,0x00,0x7F,0x00,0x00,0x00,0x00,0x00},
{0x00,0x41,0x36,0x08,0x00,0x00,0x00,0x00},
{0x00,0x02,0x01,0x01,0x02,0x01,0x00,0x00},
{0x00,0x02,0x05,0x05,0x02,0x00,0x00,0x00}
};
#define SSD1306_128_64
#define i2c_addr 0x3C //oled i2c address
//OLED configuration
#if defined SSD1306_128_64
#define SSD1306_LCDWIDTH 128
#define SSD1306_LCDHEIGHT 64
#endif
#if defined SSD1306_128_32
#define SSD1306_LCDWIDTH 128
#define SSD1306_LCDHEIGHT 32
#endif
#if defined SSD1306_96_16
#define SSD1306_LCDWIDTH 96
#define SSD1306_LCDHEIGHT 16
#endif
//OLED SSD1306 commands as given in datasheet of ssd 1306
#define SSD1306_SETCONTRAST 0x81
#define SSD1306_DISPLAYALLON_RESUME 0xA4
#define SSD1306_DISPLAYALLON 0xA5
#define SSD1306_NORMALDISPLAY 0xA6
#define SSD1306_INVERTDISPLAY 0xA7
#define SSD1306_DISPLAYOFF 0xAE
#define SSD1306_DISPLAYON 0xAF
#define SSD1306_SETDISPLAYOFFSET 0xD3
#define SSD1306_SETCOMPINS 0xDA
#define SSD1306_SETVCOMDETECT 0xDB
#define SSD1306_SETDISPLAYCLOCKDIV 0xD5
#define SSD1306_SETPRECHARGE 0xD9
#define SSD1306_SETMULTIPLEX 0xA8
#define SSD1306_SETLOWCOLUMN 0x00
#define SSD1306_SETHIGHCOLUMN 0x10
#define SSD1306_SETSTARTLINE 0x40
#define SSD1306_MEMORYMODE 0x20
#define SSD1306_COLUMNADDR 0x21
#define SSD1306_PAGEADDR 0x22
#define SSD1306_COMSCANINC 0xC0
#define SSD1306_COMSCANDEC 0xC8
#define SSD1306_SEGREMAP 0xA0
#define SSD1306_CHARGEPUMP 0x8D
#define SSD1306_EXTERNALVCC 0x1
#define SSD1306_SWITCHCAPVCC 0x2
// Scrolling #defines
#define SSD1306_ACTIVATE_SCROLL 0x2F
#define SSD1306_DEACTIVATE_SCROLL 0x2E
#define SSD1306_SET_VERTICAL_SCROLL_AREA 0xA3
#define SSD1306_RIGHT_HORIZONTAL_SCROLL 0x26
#define SSD1306_LEFT_HORIZONTAL_SCROLL 0x27
#define SSD1306_VERTICAL_AND_RIGHT_HORIZONTAL_SCROLL 0x29
#define SSD1306_VERTICAL_AND_LEFT_HORIZONTAL_SCROLL 0x2A
/***************************************************************************
funcion: void begin_oled_i2c_ssd1306_12864()
Description: This function initializes 124x64 OLED display.
***************************************************************************/
void begin_oled_i2c_ssd1306_12864()
{
i2c_init();
//initialize oled 128*64
oled_command(SSD1306_DISPLAYOFF);
oled_command(SSD1306_SETDISPLAYCLOCKDIV);
oled_command(0x80);
oled_command(SSD1306_SETMULTIPLEX);
oled_command(64-1);//height-1
oled_command(SSD1306_SETDISPLAYOFFSET);
oled_command(0x00);//no offset
oled_command(SSD1306_SETSTARTLINE| 0x00);//set start line
oled_command(SSD1306_CHARGEPUMP);//charge pump
oled_command(0x14);//dclk upto 14-15
oled_command(SSD1306_MEMORYMODE);
oled_command(0x00);//OLED RAM
oled_command(SSD1306_SEGREMAP| 0x01);
oled_command(SSD1306_COMSCANDEC);
oled_command(SSD1306_SETCOMPINS);
oled_command(0x12);
oled_command(SSD1306_SETCONTRAST);
oled_command(0xcf);
oled_command(SSD1306_SETPRECHARGE);
oled_command(0xf1);
oled_command(SSD1306_SETVCOMDETECT);
oled_command(0x40);
oled_command(SSD1306_DISPLAYALLON_RESUME);
oled_command(SSD1306_NORMALDISPLAY);
oled_command(SSD1306_DISPLAYON);
oled_command(SSD1306_COLUMNADDR);
oled_command(0x00);
oled_command(0x7f);
oled_command(SSD1306_PAGEADDR);
oled_command(0x00);
oled_command(0x07);
}
/****************************************************************************
function: void oled_command(uint8_t data)
Description: Sends 'data' as command to OLED.
****************************************************************************/
void oled_command(unsigned char data)
{
i2c_start(i2c_addr<<1 | I2C_WRITE);
i2c_write(0x00);
i2c_write(data);
i2c_stop();
}
/****************************************************************************
function: void oled_data(uint8_t data)
Description: Sends 'data' to OLED RAM for displaying data
****************************************************************************/
void oled_data(unsigned char data)
{
i2c_start(i2c_addr<<1 | I2C_WRITE);
i2c_write(0x40);
i2c_write(data);
i2c_stop();
}
#endif
#if 0
#include "oled.h"
#include "i2c.h"
#include "timer.h"
#if 0
void Oled_SendCommand(unsigned char command)
{
I2C_Start();
I2C_Write(OLED_ADDRESS_W);
I2C_Write(OzOLED_COMMAND_MODE);
I2C_Write(command);
I2C_Stop();
}
void Oled_SendData(unsigned char data)
{
I2C_Start();
I2C_Write(OLED_ADDRESS_W);
I2C_Write(OzOLED_DATA_MODE);
I2C_Write(data);
I2C_Stop();
}
unsigned char Oled_PrintFloatXY(float float_num, unsigned char prec, unsigned char X, unsigned char Y)
{
unsigned char num_int = 0;
unsigned char num_frac = 0;
unsigned char num_extra = 0;
long d = float_num; // get the integer part
float f = float_num - d; // get the fractional part
if ( X < 128 )
Oled_SetCursorXY(X, Y);
// prec - 6 maximum
if (d == 0 && f < 0.0){
Oled_PrintChar('-');
num_extra++;
Oled_PrintChar('0');
num_extra++;
f *= -1;
}
else if (d < 0 && f < 0.0){
num_int = Oled_PrintNumber(d); // count how many digits in integer part
f *= -1;
}
else{
num_int = Oled_PrintNumber(d); // count how many digits in integer part
}
// only when fractional part > 0, we show decimal point
if (f > 0.0){
printChar('.');
num_extra++;
long f_shift = 1;
if (num_int + prec > 8)
prec = 8 - num_int;
for (unsigned char j=0; j<prec; j++){
f_shift *= 10;
}
num_frac = Oled_PrintNumber((long)(f*f_shift)); // count how many digits in fractional part
}
return num_int + num_frac + num_extra;
}
#endif
#if 0
// ====================== LOW LEVEL =========================
void Oled_PrintBigNumber(const char *number, byte X, byte Y, byte numChar){
// big number pixels: 24 x 32
// Y - page
byte column = 0;
byte count = 0;
while(number[count] && count<numChar){
setCursorXY(X, Y);
for(byte i=0; i<96; i++) {
// if character is not "0-9" or ':'
if(number[count] < 48 || number[count] > 58)
sendData(0);
else
sendData(pgm_read_byte(&bigNumbers[number[count]-48][i]));
if(column >= 23){
column = 0;
setCursorXY(X, ++Y);
}
else
column++;
}
count++;
X = X + 3;
Y = Y - 4;
}
}
void Oled_PrawBitmap(const byte *bitmaparray, byte X, byte Y, byte width, byte height){
// max width = 16
// max height = 8
setCursorXY( X, Y );
byte column = 0;
for(int i=0; i<width*8*height; i++) {
sendData(pgm_read_byte(&bitmaparray[i]));
if(++column == width*8) {
column = 0;
setCursorXY( X, ++Y );
}
}
}
void OzOLED::clearDisplay() {
for(byte page=0; page<8; page++) {
setCursorXY(0, page);
for(byte column=0; column<128; column++){ //clear all columns
sendData(0);
}
}
setCursorXY(0,0);
}
/*
void OzOLED::clearPage(byte page) {
// clear page and set cursor at beginning of that page
setCursorXY(0, page);
for(byte column=0; column<128; column++){ //clear all columns
sendData(0x00);
}
}
*/
void OzOLED::setInverseDisplay(){
sendCommand(OzOLED_CMD_INVERSE_DISPLAY);
}
void OzOLED::setNormalDisplay(){
sendCommand(OzOLED_CMD_NORMAL_DISPLAY);
}
void OzOLED::setPowerOff(){
sendCommand(OzOLED_CMD_DISPLAY_OFF);
}
void OzOLED::setPowerOn(){
sendCommand(OzOLED_CMD_DISPLAY_ON);
}
void OzOLED::setBrightness(byte Brightness){
sendCommand(OzOLED_CMD_SET_BRIGHTNESS);
sendCommand(Brightness);
}
void OzOLED::setPageMode(){
addressingMode = PAGE_ADDRESSING;
sendCommand(0x20); //set addressing mode
sendCommand(PAGE_ADDRESSING); //set page addressing mode
}
void OzOLED::setHorizontalMode(){
addressingMode = HORIZONTAL_ADDRESSING;
sendCommand(0x20); //set addressing mode
sendCommand(HORIZONTAL_ADDRESSING); //set page addressing mode
}
// startscrollright
// Activate a right handed scroll for rows start through stop
// Hint, the display is 16 rows tall. To scroll the whole display, run:
// scrollRight(0x00, 0x0F) - start - stop
void OzOLED::scrollRight(byte start, byte end, byte speed){
sendCommand(OzOLED_RIGHT_SCROLL); //Horizontal Scroll Setup
sendCommand(0x00); // dummy byte
sendCommand(start); // start page address
sendCommand(speed); // set time interval between each scroll
sendCommand(end); // end page address
sendCommand(0x01);
sendCommand(0xFF);
sendCommand(0x2f); //active scrolling
}
// startscrollleft
// Activate a right handed scroll for rows start through stop
// Hint, the display is 16 rows tall. To scroll the whole display, run:
// display.scrollright(0x00, 0x0F) - start - stop
void OzOLED::scrollLeft(byte start, byte end, byte speed){
sendCommand(OzOLED_LEFT_SCROLL); //Horizontal Scroll Setup
sendCommand(0x00); // dummy byte
sendCommand(start); // start page address
sendCommand(speed); // set time interval between each scroll
sendCommand(end); // end page address
sendCommand(0x01);
sendCommand(0xFF);
sendCommand(0x2f); //active scrolling
}
// startscrolldiagright
// Activate a diagonal scroll for rows start through stop
// Hint, the display is 16 rows tall. To scroll the whole display, run:
// display.scrollright(0x00, 0x0F)
void OzOLED::scrollDiagRight(){
sendCommand(OzOLED_SET_VERTICAL_SCROLL_AREA);
sendCommand(0X00);
sendCommand(OzOLED_Max_Y);
sendCommand(OzOLED_VERTICAL_RIGHT_SCROLL); //Vertical and Horizontal Scroll Setup
sendCommand(0X00); //dummy byte
sendCommand(0x00); //define page0 as startpage address
sendCommand(0X00); //set time interval between each scroll ste as 6 frames
sendCommand(0x07); //define page7 as endpage address
sendCommand(0X01); //set vertical scrolling offset as 1 row
sendCommand(OzOLED_CMD_ACTIVATE_SCROLL); //active scrolling
}
void OzOLED::scrollDiagLeft(){
sendCommand(OzOLED_SET_VERTICAL_SCROLL_AREA);
sendCommand(0X00);
sendCommand(OzOLED_Max_Y);
sendCommand(OzOLED_VERTICAL_LEFT_SCROLL); //Vertical and Horizontal Scroll Setup
sendCommand(0X00); //dummy byte
sendCommand(0x00); //define page0 as startpage address
sendCommand(0X00); //set time interval between each scroll ste as 6 frames
sendCommand(0x07); //define page7 as endpage address
sendCommand(0X01); //set vertical scrolling offset as 1 row
sendCommand(OzOLED_CMD_ACTIVATE_SCROLL); //active scrolling
}
void OzOLED::setActivateScroll(byte direction, byte startPage, byte endPage, byte scrollSpeed){
/*
This function is still not complete, we need more testing also.
Use the following defines for 'direction' :
Scroll_Left
Scroll_Right
For Scroll_vericle, still need to debug more...
Use the following defines for 'scrollSpeed' :
Scroll_2Frames
Scroll_3Frames
Scroll_4Frames
Scroll_5Frames
Scroll_25Frames
Scroll_64Frames
Scroll_128Frames
Scroll_256Frames
*/
if(direction == Scroll_Right) {
//Scroll Right
sendCommand(0x26);
}
else {
//Scroll Left
sendCommand(0x27);
}
/*
else if (direction == Scroll_Up ){
//Scroll Up
sendCommand(0x29);
}
else{
//Scroll Down
sendCommand(0x2A);
}
*/
sendCommand(0x00);//dummy byte
sendCommand(startPage);
sendCommand(scrollSpeed);
sendCommand(endPage); // for verticle scrolling, use 0x29 as command, endPage should = start page = 0
/*
if(direction == Scroll_Up) {
sendCommand(0x01);
}
*/
sendCommand(OzOLED_CMD_ACTIVATE_SCROLL);
}
void OzOLED::setDeactivateScroll(){
sendCommand(OzOLED_CMD_DEACTIVATE_SCROLL);
}
#endif
#if 0
void Oled_SetPowerOff(void)
{
Oled_SendCommand(OzOLED_CMD_DISPLAY_OFF);
}
void Oled_SetPowerOn(void)
{
Oled_SendCommand(OzOLED_CMD_DISPLAY_ON);
}
void Oled_SetNormalDisplay(void)
{
Oled_SendCommand(OzOLED_CMD_NORMAL_DISPLAY);
}
void Oled_SetPageMode(void)
{
Oled_SendCommand(0x20); //set addressing mode
Oled_SendCommand(PAGE_ADDRESSING); //set page addressing mode
}
void Oled_ClearDisplay(void)
{
unsigned char page;
unsigned char column;
for(page=0; page<8; page++)
{
Oled_SetCursorXY(0, page);
for(column=0; column<128; column++)
{
Oled_SendData(0);
}
}
Oled_SetCursorXY(0,0);
}
void Oled_Initialization(void)
{
I2C_Start();
I2C_Write(OLED_ADDRESS_W);
I2C_Write(OLED_CONTROL_BYTE_CMD_STREAM);
I2C_Write(OLED_CMD_DISPLAY_OFF);
I2C_Write(OLED_CMD_SET_MUX_RATIO);
I2C_Write(0x3F);
// Set the display offset to 0
I2C_Write(OLED_CMD_SET_DISPLAY_OFFSET);
I2C_Write(0x00);
// Display start line to 0
I2C_Write(OLED_CMD_SET_DISPLAY_START_LINE);
// Mirror the x-axis. In case you set it up such that the pins are north.
// Wire.write(0xA0); - in case pins are south - default
I2C_Write(OLED_CMD_SET_SEGMENT_REMAP);
// Mirror the y-axis. In case you set it up such that the pins are north.
// Wire.write(0xC0); - in case pins are south - default
I2C_Write(OLED_CMD_SET_COM_SCAN_MODE);
//its working without lines below
// Default - alternate COM pin map
//Wire.write(OLED_CMD_SET_COM_PIN_MAP);
//Wire.write(0x12);
// set contrast
//Wire.write(OLED_CMD_SET_CONTRAST);
//Wire.write(0x7F);
// Set display to enable rendering from GDDRAM (Graphic Display Data RAM)
//Wire.write(OLED_CMD_DISPLAY_RAM);
// Normal mode!
//Wire.write(OLED_CMD_DISPLAY_NORMAL);
// Default oscillator clock
//Wire.write(OLED_CMD_SET_DISPLAY_CLK_DIV);
//Wire.write(0x80);
// Enable the charge pump
I2C_Write(OLED_CMD_SET_CHARGE_PUMP);
I2C_Write(0x14);
//its working without lines below
// Set precharge cycles to high cap type
//Wire.write(OLED_CMD_SET_PRECHARGE);
//Wire.write(0x22);
// Set the V_COMH deselect volatage to max
//Wire.write(OLED_CMD_SET_VCOMH_DESELCT);
//Wire.write(0x30);
// Horizonatal addressing mode - same as the KS108 GLCD
//Wire.write(OLED_CMD_SET_MEMORY_ADDR_MODE);
//Wire.write(0x00);
// Turn the Display ON
//Wire.write(OLED_CMD_DISPLAY_ON);
// End the I2C comm with the SSD1306
I2C_Stop();
Oled_SetPowerOff(); //display off
Delay_ms(100);
Oled_SetPowerOn(); //display on
Delay_ms(100);
Oled_SetNormalDisplay(); //default Set Normal Display
Oled_SetPageMode(); // default addressing mode
Oled_ClearDisplay();
Oled_SetCursorXY(0,0);
}
#endif
#define SSD1306_128_64
#define i2c_addr 0x3C //oled i2c address
//OLED configuration
#if defined SSD1306_128_64
#define SSD1306_LCDWIDTH 128
#define SSD1306_LCDHEIGHT 64
#endif
#if defined SSD1306_128_32
#define SSD1306_LCDWIDTH 128
#define SSD1306_LCDHEIGHT 32
#endif
#if defined SSD1306_96_16
#define SSD1306_LCDWIDTH 96
#define SSD1306_LCDHEIGHT 16
#endif
//OLED SSD1306 commands as given in datasheet of ssd 1306
#define SSD1306_SETCONTRAST 0x81
#define SSD1306_DISPLAYALLON_RESUME 0xA4
#define SSD1306_DISPLAYALLON 0xA5
#define SSD1306_NORMALDISPLAY 0xA6
#define SSD1306_INVERTDISPLAY 0xA7
#define SSD1306_DISPLAYOFF 0xAE
#define SSD1306_DISPLAYON 0xAF
#define SSD1306_SETDISPLAYOFFSET 0xD3
#define SSD1306_SETCOMPINS 0xDA
#define SSD1306_SETVCOMDETECT 0xDB
#define SSD1306_SETDISPLAYCLOCKDIV 0xD5
#define SSD1306_SETPRECHARGE 0xD9
#define SSD1306_SETMULTIPLEX 0xA8
#define SSD1306_SETLOWCOLUMN 0x00
#define SSD1306_SETHIGHCOLUMN 0x10
#define SSD1306_SETSTARTLINE 0x40
#define SSD1306_MEMORYMODE 0x20
#define SSD1306_COLUMNADDR 0x21
#define SSD1306_PAGEADDR 0x22
#define SSD1306_COMSCANINC 0xC0
#define SSD1306_COMSCANDEC 0xC8
#define SSD1306_SEGREMAP 0xA0
#define SSD1306_CHARGEPUMP 0x8D
#define SSD1306_EXTERNALVCC 0x1
#define SSD1306_SWITCHCAPVCC 0x2
// Scrolling #defines
#define SSD1306_ACTIVATE_SCROLL 0x2F
#define SSD1306_DEACTIVATE_SCROLL 0x2E
#define SSD1306_SET_VERTICAL_SCROLL_AREA 0xA3
#define SSD1306_RIGHT_HORIZONTAL_SCROLL 0x26
#define SSD1306_LEFT_HORIZONTAL_SCROLL 0x27
#define SSD1306_VERTICAL_AND_RIGHT_HORIZONTAL_SCROLL 0x29
#define SSD1306_VERTICAL_AND_LEFT_HORIZONTAL_SCROLL 0x2A
/***************************************************************************
funcion: void begin_oled_i2c_ssd1306_12864()
Description: This function initializes 124x64 OLED display.
***************************************************************************/
void begin_oled_i2c_ssd1306_12864()
{
i2c_init();
//initialize oled 128*64
oled_command(SSD1306_DISPLAYOFF);
oled_command(SSD1306_SETDISPLAYCLOCKDIV);
oled_command(0x80);
oled_command(SSD1306_SETMULTIPLEX);
oled_command(64-1);//height-1
oled_command(SSD1306_SETDISPLAYOFFSET);
oled_command(0x00);//no offset
oled_command(SSD1306_SETSTARTLINE| 0x00);//set start line
oled_command(SSD1306_CHARGEPUMP);//charge pump
oled_command(0x14);//dclk upto 14-15
oled_command(SSD1306_MEMORYMODE);
oled_command(0x00);//OLED RAM
oled_command(SSD1306_SEGREMAP| 0x01);
oled_command(SSD1306_COMSCANDEC);
oled_command(SSD1306_SETCOMPINS);
oled_command(0x12);
oled_command(SSD1306_SETCONTRAST);
oled_command(0xcf);
oled_command(SSD1306_SETPRECHARGE);
oled_command(0xf1);
oled_command(SSD1306_SETVCOMDETECT);
oled_command(0x40);
oled_command(SSD1306_DISPLAYALLON_RESUME);
oled_command(SSD1306_NORMALDISPLAY);
oled_command(SSD1306_DISPLAYON);
oled_command(SSD1306_COLUMNADDR);
oled_command(0x00);
oled_command(0x7f);
oled_command(SSD1306_PAGEADDR);
oled_command(0x00);
oled_command(0x07);
}
/****************************************************************************
function: void oled_command(uint8_t data)
Description: Sends 'data' as command to OLED.
****************************************************************************/
void oled_command(unsigned char data)
{
i2c_start(i2c_addr<<1 | I2C_WRITE);
i2c_write(0x00);
i2c_write(data);
i2c_stop();
}
/****************************************************************************
function: void oled_data(uint8_t data)
Description: Sends 'data' to OLED RAM for displaying data
****************************************************************************/
void oled_data(unsigned char data)
{
i2c_start(i2c_addr<<1 | I2C_WRITE);
i2c_write(0x40);
i2c_write(data);
i2c_stop();
}
/****************************************************************************
function: void oled_black_white()
Description: Sample function to check white line on screen
****************************************************************************/
void oled_black_white()
{
i2c_start(i2c_addr<<1 | I2C_WRITE);
i2c_write(0x40);
for (int j=0; j<32;j++)
{
for(int i=0;i<16;i++)
i2c_write(0);
for(int i=0;i<16;i++)
i2c_write(1);
}
i2c_stop();
}
/****************************************************************************
function: void dispaly_bmp_image(const char *image)
Description: A bitmap image '*image' to be displayed.
*image is array of all bits of bitmap images to be displayed.
****************************************************************************/
void dispaly_bmp_image(unsigned char __flash *image)
{
i2c_start(i2c_addr<<1 | I2C_WRITE);
i2c_write(0x40);
for (int j=0; j<1024;j++)
{
i2c_write(image[j]);
}
i2c_stop();
oled_command(SSD1306_DISPLAYON);
}
void Oled_PrintCharXY(char C, unsigned char X, unsigned char Y)
{
unsigned char i;
if ( X < 128 )
{
Oled_SetCursorXY(X, Y);
}
//Ignore unused ASCII characters. Modified the range to support multilingual characters.
if(C < 32 || C > 127)
C='*'; //star - indicate characters that can't be displayed
for(i=0; i<8; i++) {
//read bytes from code memory
oled_data(BasicFont[C-32][i]); //font array starts at 0, ASCII starts at 32. Hence the translation
}
}
void Oled_PrintChar(char C)
{
unsigned char i;
//Ignore unused ASCII characters. Modified the range to support multilingual characters.
if(C < 32 || C > 127)
C='*'; //star - indicate characters that can't be displayed
for(i=0; i<8; i++) {
//read bytes from code memory
oled_data(BasicFont[C-32][i]); //font array starts at 0, ASCII starts at 32. Hence the translation
}
}
void Oled_PrintString(const char *String, unsigned char X, unsigned char Y, unsigned char numChar)
{
unsigned char count=0;
if ( X < 128 )
{
Oled_SetCursorXY(X, Y);
}
while(String[count] && count<numChar)
{
Oled_PrintChar(String[count++]);
}
}
void Oled_SetCursorXY(unsigned char X, unsigned char Y)
{
// Y - 1 unit = 1 page (8 pixel rows)
// X - 1 unit = 8 pixel columns
oled_command(0x00 + (8*X & 0x0F)); //set column lower address
oled_command(0x10 + ((8*X>>4)&0x0F)); //set column higher address
oled_command(0xB0 + Y); //set page address
}
unsigned char Oled_PrintNumberXY(long long_num, unsigned char X, unsigned char Y)
{
unsigned char char_buffer[10] = "";
unsigned char i = 0;
unsigned char f = 0; // number of characters
if ( X < 128 )
Oled_SetCursorXY(X, Y);
if (long_num < 0) {
f++;
Oled_PrintChar('-');
long_num = -long_num;
}
else if (long_num == 0) {
f++;
Oled_PrintChar('0');
return f;
}
while (long_num > 0) {
char_buffer[i++] = long_num % 10;
long_num /= 10;
}
f += i;
for(; i > 0; i--) {
Oled_PrintChar('0'+ char_buffer[i - 1]);
}
return f;
}
unsigned char Oled_PrintNumber(long long_num)
{
unsigned char char_buffer[10] = "";
unsigned char i = 0;
unsigned char f = 0; // number of characters
if (long_num < 0) {
f++;
Oled_PrintChar('-');
long_num = -long_num;
}
else if (long_num == 0) {
f++;
Oled_PrintChar('0');
return f;
}
while (long_num > 0) {
char_buffer[i++] = long_num % 10;
long_num /= 10;
}
f += i;
for(; i > 0; i--) {
Oled_PrintChar('0'+ char_buffer[i - 1]);
}
return f;
}
void Oled_ClearDisplay(void)
{
unsigned char page;
unsigned char column;
for(page=0; page<8; page++)
{
Oled_SetCursorXY(0, page);
for(column=0; column<128; column++)
{
oled_data(0);
}
}
Oled_SetCursorXY(0,0);
}
#endif
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