alex/esp-idf-ssd1306
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Update ssd1306.c

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nopnop2002 2019-04-23 13:21:12 +09:00
parent 7d35b60d3d
commit 1040f763b2
1 changed files with 10 additions and 36 deletions
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46
main/ssd1306.c
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@ -93,43 +93,17 @@ void ssd1306_init(SSD1306_t * dev, int width, int height, int I2CAddress) {
}
void ssd1306_display_text(SSD1306_t dev, int page, char * text, int text_len, bool invert) {
i2c_cmd_handle_t cmd;
if (page >= dev._pages) return;
int _text_len = text_len;
if (_text_len > 16) _text_len = 16;
cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
i2c_master_write_byte(cmd, (dev._address << 1) | I2C_MASTER_WRITE, true);
i2c_master_write_byte(cmd, OLED_CONTROL_BYTE_CMD_STREAM, true);
// Set Lower Column Start Address for Page Addressing Mode
i2c_master_write_byte(cmd, 0x00, true);
// Set Higher Column Start Address for Page Addressing Mode
i2c_master_write_byte(cmd, 0x10, true);
// Set Page Start Address for Page Addressing Mode
i2c_master_write_byte(cmd, 0xB0 | page, true);
i2c_master_stop(cmd);
i2c_master_cmd_begin(I2C_NUM_0, cmd, 10/portTICK_PERIOD_MS);
i2c_cmd_link_delete(cmd);
uint8_t wk[8];
uint8_t seg = 0;
uint8_t image[8];
for (uint8_t i = 0; i < _text_len; i++) {
cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
i2c_master_write_byte(cmd, (dev._address << 1) | I2C_MASTER_WRITE, true);
i2c_master_write_byte(cmd, OLED_CONTROL_BYTE_DATA_STREAM, true);
memcpy(wk, font8x8_basic_tr[(uint8_t)text[i]], 8);
if (invert) ssd1306_invert(wk, 8);
//i2c_master_write(cmd, font8x8_basic_tr[(uint8_t)text[i]], 8, true);
i2c_master_write(cmd, wk, 8, true);
i2c_master_stop(cmd);
i2c_master_cmd_begin(I2C_NUM_0, cmd, 10/portTICK_PERIOD_MS);
i2c_cmd_link_delete(cmd);
memcpy(image, font8x8_basic_tr[(uint8_t)text[i]], 8);
if (invert) ssd1306_invert(image, 8);
ssd1306_display_image(dev, page, seg, image, 8);
seg = seg + 8;
}
}
@ -139,8 +113,8 @@ void ssd1306_display_image(SSD1306_t dev, int page, int seg, uint8_t * images, i
if (page >= dev._pages) return;
if (seg >= dev._width) return;
uint8_t startLow = seg & 0x0F;
uint8_t startHigh = (seg >> 4) & 0x0F;
uint8_t columLow = seg & 0x0F;
uint8_t columHigh = (seg >> 4) & 0x0F;
cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
@ -149,10 +123,10 @@ void ssd1306_display_image(SSD1306_t dev, int page, int seg, uint8_t * images, i
i2c_master_write_byte(cmd, OLED_CONTROL_BYTE_CMD_STREAM, true);
// Set Lower Column Start Address for Page Addressing Mode
//i2c_master_write_byte(cmd, 0x00, true);
i2c_master_write_byte(cmd, (0x00 + startLow), true);
i2c_master_write_byte(cmd, (0x00 + columLow), true);
// Set Higher Column Start Address for Page Addressing Mode
//i2c_master_write_byte(cmd, 0x10, true);
i2c_master_write_byte(cmd, (0x10 + startHigh), true);
i2c_master_write_byte(cmd, (0x10 + columHigh), true);
// Set Page Start Address for Page Addressing Mode
i2c_master_write_byte(cmd, 0xB0 | page, true);