Actel Core1553, Руководство пользователя, Страница: 25 / 38

Interrupt Status Messages
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4. Power up Silicon Explorer and start the Silicon Explorer software. In the Silicon Explorer
software, set Silicon Explorer to sample at 33 MHz, Center (50/50%), and trigger on falling
edge on Ch2. Click the falling edge icon under column P1 next to Channel 2 or MSGINT if
you named the channels (
Figure 2-12 ).
Note: To gain more area for viewing signals, from the View menu, uncheck Probe Window .
5. Press the RSTN button on the board, then click the acquire icon from the Silicon Explorer
software. You should see Bus Activity on Bus A ( Figure 2-13 ).
Interrupt Status Messages
Core1553BRM will generate status messages of the format
N.IAW.IIW.MIW
on HyperTerminal:
• N: Indicates which BRM generates the interrupt
• AW: Interrupt Address Word
• IIW: Interrupt Identification Word
• MIW: Message Information Word (RT interrupts only)
These messages will be displayed on the RS-232 interface to HyperTerminal. Refer to the
Core1553BRM Handbook for more information about these messages.
Figure 2-11 • J5 Connector on M1AFS-ADV-DEV-KIT Board
Figure 2-12 • Trigger on Falling Edge on Channel 2
Figure 2-13 • Bus Activity
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