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STM8S207C6T6 开发手册 - ST Microelectronics(意法半导体)
制造商:
ST Microelectronics(意法半导体)
分类:
微控制器
封装:
LQFP-48
描述:
STM8S 8 位微控制器,STMicroelectronicsSTM8S 系列通用 8 位闪存微控制器是具有一个 3 级管线的 STM8 的高级芯型号。 STM8S 受益于在 24MHz 在操作高达 20MIPS 的高级芯体系架构。 嵌入式 EEPROM、RC 振荡器和完整的外围设备为设计人员提供坚固且可靠的解决方案。 ### STM8 8 位微控制器,STMicroelectronicsSTM8 平台已应用于高性能 8 位核心且是最先进的外围设备。 8 位微控制器以 16/24MHz 操作,具有高达 128kB 闪存、内部 RAM 和 EEPROM、8/16 位计时器、A/D 转换器、D/A 转换器、比较器、串行接口和可选显示控制器。
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
原理图在P19
应用领域在P22
导航目录
STM8S207C6T6数据手册
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April 2009 Doc ID 14296 Rev 1 1/22
AN2687
Application note
STM8S20xxx
LCD software driver
Introduction
This application note describes two different methods for driving liquid crystal displays
(LCD) with any standard STM8S20xxx microcontroller (MCU), without any specific on-chip
LCD driver hardware:
● the first method uses the timer 2 channel resource and also allows LCD contrast
control through software
● the second method uses the Auto-wakeup mode only
This application note starts with an introduction on LCDs in Section 1: LCD principle and
Section 2: LCD drive signals.
Section 3 then presents a solution based on a standard STM8S20xxx MCU directly driving a
quadruplex LCD. This solution can be implemented with any MCU as it only requires the
standard I/O ports and some timings.
Section 4 gives consumption considerations. Section 5 describes how to control contrast
through software: for this purpose, two push-buttons connected to two standard I/Os are
used. Finally, Section 6 gives an overview of the LCD demo board based on an
STM8S20xxx microcontroller, and provides the board schematics.
For more information on the LCD drive theory, please refer also to AN1048.
The number of external components is kept to a minimum of two external resistors per COM
line. The number of I/Os depends on the number of LCD segments used. Software contrast
control is a very flexible solution that can be easily adapted to a wide range of applications.
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