ICS TRIPLEX T8151B處理器模塊,T8151B使用流程
按如下方式設(shè)置終端：
? 每個(gè)字符8位
? 每個(gè)字符一個(gè)停止位
? 禁用奇偶校驗(yàn)（無(wú)奇偶校驗(yàn)）
? 波特率9600波特（MVME187端口的默認(rèn)波特率通電）
通電后，可以使用重新配置調(diào)試端口的波特率187Bug調(diào)試器的端口格式（PF）命令。
將主機(jī)系統(tǒng)和/或串行打印機(jī)等設(shè)備連接到具有適當(dāng)電纜和配置的其他EIA-232-D端口連接器。
ICS TRIPLEX T8151B處理器模塊通電后，可以通過(guò)編程來(lái)重新配置這些端口MVME187 CD2401串行控制器芯片（SCC），或使用187Bug PF命令按照步驟中所述設(shè)置設(shè)備串行端口通電后，端口的波特率可以使用端口格式（PF）重新配置187Bug調(diào)試器的命令。
將并行設(shè)備（如打印機(jī)）連接到MVME712X轉(zhuǎn)換模塊上的打印機(jī)端口。（您也可以使用MVME335等模塊用于并行端口連接。）為了實(shí)現(xiàn)高波特率串行通信在187Bug和終端之間工作，終端必須進(jìn)行某種形式的握手。如果終端使用時(shí)不會(huì)通過(guò)CTS線(xiàn)路，則必須進(jìn)行XON/XOFF握手。如果你會(huì)收到亂七八糟的信息和丟失的字符，你應(yīng)檢查終端以確保XON/XOFF已啟用握手。請(qǐng)參閱配置端口在調(diào)試中的PF（端口格式）命令下88K RISC CPU用戶(hù)手冊(cè)包。初始化實(shí)時(shí)時(shí)鐘
車(chē)載實(shí)時(shí)時(shí)鐘（RTC）由一個(gè)獨(dú)立的電池進(jìn)行備份。在裝運(yùn)該板之前，時(shí)鐘RTC設(shè)備已停止以保持電池壽命。電路板的“自檢”（ST）和操作系統(tǒng)需要時(shí)鐘正在運(yùn)行的RTC。表3-15顯示了執(zhí)行以下操作所需的步驟：根據(jù)模式初始化RTC。檢查和/或改變環(huán)境參數(shù)
使用187Bug的ENV命令驗(yàn)證NVRAM（BBRAM）參數(shù)，并可以選擇使用ENV對(duì)
環(huán)境參數(shù)。有關(guān)詳細(xì)信息，請(qǐng)參閱附錄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.
