ICS TRIPLEX T8151B处理器模块,T8151B使用流程
按如下方式设置终端：
❏ 每个字符8位
❏ 每个字符一个停止位
❏ 禁用奇偶校验（无奇偶校验）
❏ 波特率9600波特（MVME187端口的默认波特率通电）
通电后，可以使用重新配置调试端口的波特率187Bug调试器的端口格式（PF）命令。
将主机系统和/或串行打印机等设备连接到具有适当电缆和配置的其他EIA-232-D端口连接器。
ICS TRIPLEX T8151B处理器模块通电后，可以通过编程来重新配置这些端口MVME187 CD2401串行控制器芯片（SCC），或使用187Bug PF命令按照步骤中所述设置设备串行端口通电后，端口的波特率可以使用端口格式（PF）重新配置187Bug调试器的命令。
将并行设备（如打印机）连接到MVME712X转换模块上的打印机端口。（您也可以使用MVME335等模块用于并行端口连接。）为了实现高波特率串行通信在187Bug和终端之间工作，终端必须进行某种形式的握手。如果终端使用时不会通过CTS线路，则必须进行XON/XOFF握手。如果你会收到乱七八糟的信息和丢失的字符，你应检查终端以确保XON/XOFF已启用握手。请参阅配置端口在调试中的PF（端口格式）命令下88K RISC CPU用户手册包。初始化实时时钟
车载实时时钟（RTC）由一个独立的电池进行备份。在装运该板之前，时钟RTC设备已停止以保持电池寿命。电路板的“自检”（ST）和操作系统需要时钟正在运行的RTC。表3-15显示了执行以下操作所需的步骤：根据模式初始化RTC。检查和/或改变环境参数
使用187Bug的ENV命令验证NVRAM（BBRAM）参数，并可以选择使用ENV对
环境参数。有关详细信息，请参阅附录A
Set up the terminal as follows:
❏ eight bits per character
❏ one stop bit per character
❏ parity disabled (no parity)
❏ baud rate 9600 baud (default baud rate of MVME187 ports at
powerup)
After power-up, the baud rate of the debug port can be reconfigured by using
the Port Format (PF) command of the 187Bug debugger.
Connect devices such as a host computer system and/or a serial printer to the
other EIA-232-D port connectors with the appropriate cables and configuration.
After power-up, these ports can be reconfigured by programming the
MVME187 CD2401 Serial Controller Chip (SCC), or by using the 187Bug PF
command. Set up the device serial ports as described in Step
3.
After powerup, the baud rate of the port can be
reconfigured by using the Port Format (PF)
command of the 187Bug debugger.
Connect a parallel device, such as a printer, to the
printer port on the MVME712X transition module.
(You may also use a module such as the MVME335
for a parallel port connection.) In order for high-baud rate serial communication
between 187Bug and the terminal to work, the terminal
must do some form of handshaking. If the terminal
being used does not do hardware handshaking via the
CTS line, then it must do XON/XOFF handshaking. If
you get garbled messages and missing characters, you
should check the terminal to make sure XON/XOFF
handshaking is enabled. Refer to Configuring a Port
under the PF (Port Format) command in the Debugging
Package for 88K RISC CPUs User’s Manual.Initializing the Real-Time Clock
The onboard real-time clock (RTC) is backed up with a selfcontained battery. Before shipment of this board, the clock of the
RTC device was stopped to preserve battery life.
The board’s “Selftests” (ST) and operating systems require the clock
of the RTC to be operating. Table 3-15 shows the steps required to
initialize the RTC, depending on the mode.
Examining and/or Changing Environmental Parameters
Use the 187Bug’s ENV command to verify the NVRAM (BBRAM)
parameters, and optionally use ENV to make changes to the
Environmental parameters. Refer to Appendix A for the
Environment parameters.
