void drawChar8x12(uint8_t x, uint8_t y, char c) {
uint8_t col = 0;
uint8_t row = 0;
uint8_t bit = 0x80;
uint8_t oc = c - 0x20;
setAddr(x, y, x + 7, y + 11);
while (row < 12) {
while (col < 8) {
if (font_8x12[oc][row] & bit) {
//foreground
lcd_data_send(colorHighByte);
lcd_data_send(colorLowByte);
} else {
//background
lcd_data_send(bgColorHighByte);
lcd_data_send(bgColorLowByte);
}
bit >>= 1;
col++;
}
bit = 0x80;
col = 0;
row++;
}
}
void drawChar(uint8_t x, uint8_t y, char c) {
uint8_t col = 0;
uint8_t row = 0;
uint8_t bit = 0x01;
uint8_t oc = c - 0x20;
setAddr(x, y, x + 4, y + 7); // if you want to fill column between chars, change x + 4 to x + 5
while (row < 8) {
while (col < 5) {
if (font[oc][col] & bit) {
//foreground
lcd_data_send(colorHighByte);
lcd_data_send(colorLowByte);
} else {
//background
lcd_data_send(bgColorHighByte);
lcd_data_send(bgColorLowByte);
}
col++;
}
// if you want to fill column between chars, writeData(bgColor) here
col = 0;
bit <<= 1;
row++;
}
}
void setAddr(uint8_t xStart, uint8_t yStart, uint8_t xEnd, uint8_t yEnd) {
lcd_command_send(ST7735_CASET);
lcd_data_send(0x00);
lcd_data_send(xStart);
lcd_data_send(0x00);
lcd_data_send(xEnd);
lcd_command_send(ST7735_RASET);
lcd_data_send(0x00);
lcd_data_send(yStart);
lcd_data_send(0x00);
lcd_data_send(yEnd);
lcd_command_send(ST7735_RAMWR);
}
void setAddr(uint8_t xStart, uint8_t yStart, uint8_t xEnd, uint8_t yEnd) {
lcd_command_send(ST7735_CASET);
lcd_data_send(0x00); //High byte for address, not used since our screen is small
lcd_data_send(xStart);
lcd_data_send(0x00);
lcd_data_send(xEnd);
lcd_command_send(ST7735_RASET);
lcd_data_send(0x00);
lcd_data_send(yStart);
lcd_data_send(0x00);
lcd_data_send(yEnd);
lcd_command_send(ST7735_RAMWR);
}
void drawChar(uint8_t x, uint8_t y, char c) {
uint8_t col = 0;
uint8_t row = 0;
uint8_t bit = 0x01;
uint8_t oc = c - 0x20;
setAddr(x, y, x + 4, y + 7);
while (row < 8) {
while (col < 5) {
if (font[oc][col] & bit) {
lcd_data_send(colorHighByte);
lcd_data_send(colorLowByte);
} else {
lcd_data_send(bgColorHighByte);
lcd_data_send(bgColorLowByte);
}
col++;
}
col = 0;
bit <<= 1;
row++;
}
}
void writeConfig(uint8_t command, uint8_t num_args, const uint8_t *args) {
lcd_command_send(command); // Send Command first
while (num_args--) {
lcd_data_send(*args++); //Send data per arg
}
}