论脉冲计数板DSDP140B 57160001-ACX的使用方法
XON/XOFF模式-ESC l
此命令启用或禁用QTERM-II的XON/XOFF操作。#的有效值为@-disable XON/XOFF operation A-enable XON/XOFF operations如果禁用XON/X-OFF操作，则用户按下的任何键都将立即发送到主机。如果主机以足够快的速度向QTERM-II发送数据以填满接收缓冲区，则会忽略其他字符。2.2.49用户区域读/写-ESC m#此命令允许您在QTERM-II非易失性EEPROM中存储多达63字节的自己的信息（如序列号或参数），然后从终端读取。#有两个有效值：@-读取用户数据A-写入用户数据（后跟数据）read data：如果#=“@”，QTERM-II将以以下格式将用户区域中的数据传输到主机：#….其中#是40h到7Fh范围内的字符，表示后面将跟随0到63字节的用户数据，以及“….”是相应的用户字节数。这些字节将与最初存储的字节完全相同，因此它们可以是任何8位值。如果#=“@”（后面是0字节），则用户区域中没有存储数据。写入数据：要写入用户数据，请使用以下格式：ESC m A#….其中#在41h到7fh（'A'到DEL）的范围内，并指示后面是1到63字节的数据，以及“….”是要存储的数据字节。这些数据字节可以是任何8位值。收到整个字符串后，QTERM-II将通过向主机发送一个字符进行响应：06h-确认字符（ACK），数据存储属性15h-否定确认字符（NAK），未存储数据
使用QDATA文件
3.1 QDATA文件QDATA用于配置终端。您可能有三个原因需要使用QDATA文件：•您希望更改按键被按下时发送的内容，或设计自己的显示字符（这必须使用QDATA文件完成）。•您想更改一些其他默认设置（如蜂鸣音长度、标签设置等）。•您希望通过修改终端的出厂默认操作来保护您的开发投资。如果第三个原因对您来说很重要，请务必考虑修改识别码，以确保您的投资得到保护。数据无法正确存储的两个原因是没有足够的区域来存储数据，或者硬件故障。有关存储区域的详细信息，请参见获取可用用户区域-ESC n命令。有关读取和写入命令的#值和相应数据字节数的完整列表，请参阅表1-4。2.2.50获取自由用户区-ESC n此命令告诉QTERM-II向主机传输一个字符。此字符的范围为40h到7Fh（“@”到DEL），表示用户区域的总大小。这将始终是63字节（字符7Fh），除非QDATA文件太大，用户区域可用的字节更少。请注意，此命令返回的值并没有告诉您可以向用户区域写入多少内容，而是告诉您可以写入用户区域的总内容。
XON/XOFF Mode - ESC l
This command enables or disables the XON/XOFF operation of the QTERM-II. Valid values for # are @ - disable XON/XOFF operation A - enable XON/XOFF operation If you disable XON/XOFF operation, then any keys pressed by the user will be sent to the host immediately. If the host sends data fast enough to the QTERM-II to fill up the receive buffer, additional characters will be ignored. 2.2.49 User Area Read/Write - ESC m # This command allows you to store up to 63 bytes of your own information (such as serial numbers or parameters) in the QTERM-II nonvolatile EEPROM, then later read them from the terminal. There are two valid values for #: @ - read user data A - write user data (followed by data) READ DATA: if # = '@', the QTERM-II will transmit the data in the user area to the host in the following format: # . . . . where # is a character in the range of 40h to 7Fh, and indicates that 0 to 63 bytes of user data will follow, and '. . . .' is the corresponding number of user bytes. These bytes will be exactly what was originally stored, so they may be any 8-bit value. If # = '@' (0 bytes to follow), then there was no data stored in the user area. WRITE DATA: to write user data, use the format: ESC m A # . . . . where # is in the range of 41h to 7fh ('A' to DEL), and indicates that from 1 to 63 bytes of data are to follow, and '. . . .' are the data bytes to be stored. These data bytes may be any 8-bit value. After the entire string has been received, the QTERM-II will respond by transmitting one character to the host: 06h - Acknowledge character (ACK), data stored propery 15h - Negative Acknowledge character (NAK), data not stored
USING THE QDATA FILE
3.1 QDATA Files
A QDATA file is used to configure your terminal. There
are three reasons you may want to use a QDATA file:
• You want to change what keys send when they are
pressed or design your own display characters (this
must be done with the QDATA file).
• You want to change some of the other defaults (such
as beep length, tab settings, etc.).
• You want to protect your development investment by
modifying the terminal from its factory-default operation.
If the third reason is important to you, be sure to consider
modifying the
