5-2 RS-232C 命令表

通信格式 (符合 RS232C 标准)

波特率:9,600 bps

奇偶校验位:无

数据位:8;停止位:1

流量控制:无

串行通信协议

1.命令包结构 [7 个字节]

0x08

0x22

cmd1

cmd2

cmd3

CS

命令包共含 7 个字节。

0x08 0x22 两个字节表明该数据包用于串行通信。

紧接着的 4 个字节代表可由用户定义的预定义命令。

最后一个字节是校验和,用来检验当前数据包的有效性。

包头 [2 个字节]:固定为 0x08 0x22 的预定义值。

Cmd1 [1 个字节]:命令列表中定义的首个代码值 (十六进制)

Cmd2 [1 个字节]:命令列表中定义的第二个代码值 (十六进制)

Cmd3 [1 个字节]:命令列表中定义的第三个代码值 (十六进制)

[1 个字节]:命令的输入参数 (默认为0) (十六进制)

CS [1 个字节]:校验和 (除 CS 值之外的所有值之和的二补数)

2.响应包结构 [3 个字节]

1. 成功

0x03

0x0C

0xF1

 

 

 

2.失败

0x03

0x0C

0xFF

如果所收到的由外部设备发送的数据包为有效值,则会发送 “成功”数据包。否则,发送 “失败”数据包。

以下情况下,将发送 “失败”数据包:

所收到的数据包长度大于或小于 7 个字节。

2 个字节的包头值不是 0x08 0x22

校验和不正确。

外部设备的失败检测

如果外部设备在 100 毫秒内未接收到 “成功”数据包,则会将其视作为 “失败”数据包。

如果收到了对先前传输的成功响应,或超过 3 秒钟无响应,则将传输后面的控制命令,以便传输一个或多个控制命令。

在使用计算机控制投影仪时,投影仪的状态无法通过计算机查看,也无法显示在投影仪的屏幕上。传输 “信息”命令, 可在投影仪的屏幕上显示当前信息。

所有的控制命令都会应用到输入源和当前显示的投影仪状态中。

5-2

更多信息

Page 38
Image 38
Samsung SP-A600B, SPA600BX/EN manual RS-232C 命令表, 通信格式 (符合 RS232C 标准), 串行通信协议

SPA600BX/EN, SP-A600B specifications

The Samsung SP-A600B, also known as SPA600BX/EN, represents a significant advancement in the realm of home entertainment projectors. This model is designed to cater to the needs of movie enthusiasts and gamers alike, blending exceptional picture quality with innovative features that enhance the viewing experience.

One of the standout features of the SP-A600B is its impressive resolution. The projector boasts a native Full HD resolution of 1920 x 1080 pixels, allowing for crystal-clear images that bring movies and games to life. This resolution is complemented by a remarkable brightness level, typically rated at around 3000 ANSI lumens, ensuring vibrant visuals even in well-lit environments. Whether you’re hosting a movie night or playing competitive video games, the projector delivers consistent performance without compromising on quality.

The SP-A600B employs advanced DLP (Digital Light Processing) technology, which enhances color accuracy and sharpness. This technology minimizes the gap between pixels, resulting in smoother and more detailed images. Additionally, the projector supports a wide color gamut, providing richer colors that make on-screen content more immersive. It also features a high contrast ratio, ensuring deep blacks and bright whites for a more dynamic picture.

For connectivity, the SP-A600B is equipped with multiple input options, including HDMI ports, VGA, and USB, allowing users to connect various devices such as Blu-ray players, gaming consoles, and laptops with ease. The inclusion of wireless connectivity options also makes it convenient to stream content directly from smart devices.

User-friendliness is another hallmark of the Spa600BX/EN. The projector comes with a simple and intuitive interface, making navigation straightforward. It also features keystone correction, which helps in adjusting the image to fit the screen properly, even if the projector is not positioned directly in front of the display surface.

In terms of design, the SP-A600B presents a sleek and modern aesthetic that fits well with contemporary home decor. It is lightweight and portable, making it easy to set up in various locations, whether for a casual gathering or a formal presentation.

Overall, the Samsung SP-A600B, SPA600BX/EN is an excellent choice for anyone seeking a high-quality projector that combines cutting-edge technologies with user-friendly features, ensuring a top-notch home entertainment experience.