产品概述
2.8inch Resistive Touch LCD是IPS显示屏，320×240分辩率，带电阻触摸，使用SPI控制，确保不会占用太多接口引脚资源。
主要参数
| 类别 |
参数
|
| 驱动芯片 |
HX8347D
|
| 触控芯片 |
XPT2046
|
| 屏幕类型 |
IPS
|
| 通信接口 |
SPI
|
| 分辨率 |
320*240
|
| 外形尺寸 |
79.8 × 50.8 mm
|
| 显示尺寸 |
57.6 × 43.2mm
|
| 显示颜色 |
RGB·65K色
|
| 触控方式 |
四线电阻式
|
| 供电电压 |
5V
|
| 逻辑电平 |
3.3V
|
接口定义
| I/O |
描述
|
| 5V |
电源5V
|
| GND |
电源地
|
| MISO |
SPI数据输出
|
| MOSI |
SPI数据输入
|
| SCLK |
SPI时钟信号
|
| LCD_CS |
LCD片选
|
| LCD_DC |
LCD数据/命令选择
|
| LCD_RST |
LCD复位信号
|
| LCD_BL |
LCD背光控制
|
| TP_CS |
触摸面板片选
|
| TP_IRQ |
触摸面板中断
|
例程演示
- OpenX05R-C例程
- OpenM128例程
- Open103C例程
- Open16F877A/Open18F4520例程
OpenX05R-C
操作步骤
- 拔掉4个LED跳帽，2.8inch Resistive Touch LCD接入OpenX05R-C开发板
- 打开Open405R-C的TouchPanel项目文件，按F7编译后，按F8下载
- 2.8inch Resistive Touch LCD显示：
Please use the stylus click the cross on the screen.The cross will always move until the screen adjustment is completed.
- 用触控笔依次点击屏幕进行校准
- 完成后即可在屏幕上进行涂鸦
- 更多演示请参考OpenX05R-C系列例程
演示图
OpenM128例程
硬件连接
| 2.8inch LCD |
OpenM128
|
| 5V |
5V
|
| GND |
GND
|
| MISO |
PB2/DIN
|
| MOSI |
PB3/DOUT
|
| SCLK |
PB1/CLK
|
| LCD_CS |
PD6/CS
|
| LCD_DC |
PB5/RS
|
| LCD_RST |
PB6/RESET
|
| LCD_BL |
PE5/PWM
|
| TP_CS |
PB4
|
| TP_IRQ |
PE4/IRQ
|
操作步骤
- 完成LCD连接，ISP烧录器连接，电源连接
- 使用Atmel Studio 7.0打开工程，AVR安装使用等系列教程请点击我参考
- 先按F7编译，后按Ctrl+Alt+F5烧录
Open103C
硬件连接
| 2.8inch LCD |
Open103C
|
| 5V |
5V
|
| GND |
GND
|
| MISO |
PB14
|
| MOSI |
PB15
|
| SCLK |
PB13
|
| LCD_CS |
PB12
|
| LCD_DC |
PB8
|
| LCD_RST |
PB9
|
| LCD_BL |
PB0
|
| TP_CS |
PA15
|
| TP_IRQ |
PB1
|
操作步骤
- 按上表和图连接2.8inch Resistive Touch LCD和Open103C
- Open103C连接ST/Link，连接5VDC，打开例程烧录程序
Open16F877A/Open18F4520
| 2.8inch LCD |
Open16F877A
|
| 5V |
5V
|
| GND |
GND
|
| MISO |
RC4
|
| MOSI |
RC5
|
| SCLK |
RC3
|
| LCD_CS |
RA1
|
| LCD_DC |
RA2
|
| LCD_RST |
RD0
|
| LCD_BL |
3.3V
|
| TP_CS |
RA4
|
| TP_IRQ |
RA0
|
