HT16H25 Treadmill Display Application Guideline
AN0505E V1.00
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January 8, 2019
HT16H25 Treadmill Display Application Guideline
D/N
：
AN0505E
Overview
The internal RAM of the HT16H25 is directly mapped to the corresponding LCD display
unit. It supports LCD display chips and has multiple display modes and also allows a
range of duty types to be selected. With a 1/16 Duty, it can display 960 pixels. The
internal LCD bias can be selected to be sourced from a charge pump or from a resistor
divider to drive LCD screens with an operating voltage range of 2.5V to 12V. The device
supports 4 of GPO output ports and can set the GPO output to a 64-level PWM output
mode to drive the LED backlight. Additionally, the HT16H25 supports both I
2
C and SPI
3-wire communication modes.
In this application note, the HT66F50 is used as the main control MCU which
communicates with the HT16H25 through the I
2
C interface. It simulates a treadmill LCD
display and shows how the HT16H25 drives a 16COM × 58SEG LCD (@10V). The
application note will give the reader a clearer understanding of the HT16H25
characteristics and of its application.
Functional Description
LCD Panel Display Functions
LCD Panel