void SSD1308::writeString(uint8_t row, uint8_t col, uint16_t len, const char * text)
{
uint16_t index = 0;
setPageAddress(row, MAX_PAGE);
const uint8_t col_addr = FONT_WIDTH*col;
setColumnAddress(col_addr, MAX_COL);
while ((col+index) < CHARS && (index < len)) {
// write first line, starting at given position
writeChar(text[index++]);
}
// write remaining lines
// write until the end of memory
// then wrap around again from the top.
if (index + 1 < len) {
setPageAddress(row + 1, MAX_PAGE);
setColumnAddress(0, MAX_COL);
bool wrapEntireScreen = false;
while (index + 1 < len) {
writeChar(text[index++]);
// if we've written the last character space on the screen,
// reset the page and column address so that it wraps around from the top again
if (!wrapEntireScreen && (row*CHARS + col + index) > 127) {
setPageAddress(0, MAX_PAGE);
setColumnAddress(0, MAX_COL);
wrapEntireScreen = true;
}
}
}
}
void SSD1308::fillDisplay()
{
setPageAddress(0, MAX_PAGE); // all pages
setColumnAddress(0, MAX_COL); // all columns
uint8_t b = 0;
for (uint8_t page = 0; page < PAGES; page++)
{
for (uint8_t col = 0; col < COLUMNS; col++)
{
sendData(b++);
}
}
}
void SSD1308::clearDisplay()
{
setDisplayOff();
setPageAddress(0, 7); // all pages
setColumnAddress(0, 127); // all columns
for (uint8_t page = 0; page < 8; page++)
{
for (uint8_t col = 0; col < 128; col++)
{
sendData(0x0);
}
}
setDisplayOn();
}
void CI2cOledDrv::clearDisplay()
{
int i=0;
//this->ctlIO();
setPageAddress(0x00,0x07);
setColumnAddress(0x00,0x7F);
//for(i=0;i<OLDE_COLS*OLDE_PAGES;i++)
//{
// writeDataChar(' ',m_fd);
//}
char buf[OLDE_COLS*8*OLDE_PAGES+1];
buf[0]=OLED_RS_DATA;
for(i=1;i<OLDE_COLS*8*OLDE_PAGES+1;i++)
{
buf[i]=0x0;
}
if( write(m_fd,buf,OLDE_COLS*8*OLDE_PAGES+1) != (OLDE_COLS*8*OLDE_PAGES+1) )
{
printf("Error writeing to i2c slave1\n");
}
}
void CI2cOledDrv::startDisplay()
{
setMemoryAdressingMode(ADDR_MODE_HORIZONTAL);
setPageAddress(0x00,0x07);
setColumnAddress(0x00,0x7F);
}
