diff options
Diffstat (limited to 'drivers/lcd')
| -rw-r--r-- | drivers/lcd/hd44780.h | 46 |
1 files changed, 23 insertions, 23 deletions
diff --git a/drivers/lcd/hd44780.h b/drivers/lcd/hd44780.h index d4b8f9ea76..9e43339344 100644 --- a/drivers/lcd/hd44780.h +++ b/drivers/lcd/hd44780.h @@ -33,34 +33,34 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. * Table 6 (p24) */ // Clear display -#define HD44780_CMD_CLEAR_DISPLAY 0x01 +#define HD44780_CMD_CLEAR_DISPLAY 0x01 // Return home -#define HD44780_CMD_RETURN_HOME 0x02 +#define HD44780_CMD_RETURN_HOME 0x02 // Entry mode set -#define HD44780_CMD_ENTRY_MODE 0x04 -#define HD44780_ENTRY_MODE_INC 0x02 // I/D -#define HD44780_ENTRY_MODE_SHIFT 0x01 // S +#define HD44780_CMD_ENTRY_MODE 0x04 +#define HD44780_ENTRY_MODE_INC 0x02 // I/D +#define HD44780_ENTRY_MODE_SHIFT 0x01 // S // Display on/off control -#define HD44780_CMD_DISPLAY 0x08 -#define HD44780_DISPLAY_ON 0x04 // D -#define HD44780_DISPLAY_CURSOR 0x02 // C -#define HD44780_DISPLAY_BLINK 0x01 // B +#define HD44780_CMD_DISPLAY 0x08 +#define HD44780_DISPLAY_ON 0x04 // D +#define HD44780_DISPLAY_CURSOR 0x02 // C +#define HD44780_DISPLAY_BLINK 0x01 // B // Cursor or display shift -#define HD44780_CMD_MOVE 0x10 -#define HD44780_MOVE_DISPLAY 0x08 // S/C -#define HD44780_MOVE_RIGHT 0x04 // R/L +#define HD44780_CMD_MOVE 0x10 +#define HD44780_MOVE_DISPLAY 0x08 // S/C +#define HD44780_MOVE_RIGHT 0x04 // R/L // Function set -#define HD44780_CMD_FUNCTION 0x20 -#define HD44780_FUNCTION_8_BIT 0x10 // DL -#define HD44780_FUNCTION_2_LINES 0x08 // N -#define HD44780_FUNCTION_5X10_DOTS 0x04 // F +#define HD44780_CMD_FUNCTION 0x20 +#define HD44780_FUNCTION_8_BIT 0x10 // DL +#define HD44780_FUNCTION_2_LINES 0x08 // N +#define HD44780_FUNCTION_5X10_DOTS 0x04 // F // Set CGRAM address -#define HD44780_CMD_SET_CGRAM_ADDRESS 0x40 +#define HD44780_CMD_SET_CGRAM_ADDRESS 0x40 // Set DDRAM address -#define HD44780_CMD_SET_DDRAM_ADDRESS 0x80 +#define HD44780_CMD_SET_DDRAM_ADDRESS 0x80 // Bitmask for busy flag when reading -#define HD44780_BUSY_FLAG 0x80 +#define HD44780_BUSY_FLAG 0x80 /** * \brief Write a byte to the display. @@ -72,7 +72,7 @@ void hd44780_write(uint8_t data, bool isData); /** * \brief Read a byte from the display. - * + * * \param isData Whether to read the current cursor position, or the character at the cursor. * * \return If `isData` is `true`, the returned byte will be the character at the current DDRAM address. Otherwise, it will be the current DDRAM address and the busy flag. @@ -90,7 +90,7 @@ bool hd44780_busy(void); * \brief Send a command to the display. Refer to the datasheet for the valid commands. * * This function waits for the display to clear the busy flag before sending the command. - * + * * \param command The command to send. */ void hd44780_command(uint8_t command); @@ -163,7 +163,7 @@ void hd44780_init(bool cursor, bool blink); /** * \brief Move the cursor to the specified position on the display. - * + * * \param col The column number to move to, from 0 to 15 on 16x2 displays. * \param line The line number to move to, either 0 or 1 on 16x2 displays. */ @@ -179,7 +179,7 @@ void hd44780_define_char(uint8_t index, uint8_t *data); /** * \brief Print a character to the display. The newline character will move the cursor to the start of the next line. - * + * * The exact character shown may depend on the ROM code of your particular display - refer to the datasheet for the full character set. * * \param c The character to print. |