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diff --git a/Smol Watch Project/My Project/hal/documentation/slcd_sync.rst b/Smol Watch Project/My Project/hal/documentation/slcd_sync.rst deleted file mode 100644 index e18aa9dd..00000000 --- a/Smol Watch Project/My Project/hal/documentation/slcd_sync.rst +++ /dev/null @@ -1,82 +0,0 @@ - -SLCD Synchronous driver -======================= - -An LCD display is made of several segments (pixels or complete symbols) which -can be block light or let light through. In each segment is one electrode -connected to the common terminal (COM pin) and one is connected to the segment -terminal (SEG pin). When a voltage above a certain threshold level is applied -across the liquid crystal, it will change orientation and either let light -through or block it. - -The driver supports segment on/off/blink, animation and character display. - -Each segment has a unique int32 segment id which is used by the driver. The id is -combined by common number(COM) and segment number(SEG), the COM and SEG start from 0. -The unique segment id is calculated by this formula: (COM << 16) | SEG -For example a 8(coms)*8(segments)SLCD, the unique segment id for segment should be - - +-----+-----+---------+ - | COM | SEG | ID | - +-----+-----+---------+ - | 0 | 0 | 0x00000 | - +-----+-----+---------+ - | 1 | 0 | 0x10000 | - +-----+-----+---------+ - | 7 | 7 | 0x70007 | - +-----+-----+---------+ - -Segment ID can be calculated using the pre-defined macro SLCD_SEGID(com, seg). - -For character display, the "segment character mapping table" and "character mapping table" -should be setup in configuration. The driver have no API to setup/change those -mapping setting. -There are two pre-defined "segment character mapping table" in this driver, 7 segments -and 14 segments. The 7 segment character mapping can display 0-9 and a-f, the 14 -segments character mapping can display 0-9, A-Z and some special ASCII, for more -details please refer to hpl_slcd_cm_7_seg_mapping.h and hpl_slcd_cm_14_seg_mapping.h. -Application can also adjust this mapping table in the configuration header file, -to add more character mapping or remove some unused character. - -The "character mapping" is used to setup each character in SLCD display screen. -The driver supports multiple character mapping, the max number varies on different -MCU/MPU. For example if an LCD display screen has five "7-segments character" and -eight "14-segments character", and the MCU support max 44 characters setting, then -the 13 character should be setup in configuration. Application can select any -position from those 44 characters setting to save those 13 character. -The index of character setting will be used in the driver API. For example: -five "7-segments character" setting to 0 to 4 and eight "14-segments character" setting -to 10 to 17. Then the application can use index from 0 to 4 to display the -"7-segments character" and use index from 10 to 14 to display "14-segments character". - -Features --------- - -* Initialization and de-initialization -* Enabling and Disabling -* Switching segment on/off -* Set segment blink -* Autonomous animation -* Character display - -Applications ------------- -* SLCD display control, segment on/off/blink -* Play battery animation, running wheel, wifi signal, etc. -* Display Time Clock by 7 segments character mapping -* Display ASCII character by 14 segments character mapping - -Dependencies ------------- -* SLCD capable hardware - -Concurrency ------------ -N/A - -Limitations ------------ - -Known issues and workarounds ----------------------------- -N/A |