EV8000 Datasheet, PDF (26/35 Pages) CML Microcircuits – Evaluation Kit User

Evaluation Kit User Manual for FX828 and FX829
EV8000
The user can read or write to either near or far C-BUS by clicking on the respective C-BUS radio
buttons (CBUS or CBUS2).
The General Reset button within this window will allow the user to reset devices controlled by the
selected C-BUS. The General Reset button within the Direct C-BUS Control window will not reset
device form displays and variables.
This window contains an interrupt notification section. This section comprises of two checkboxes
to select either near or far C-BUS interrupts and two corresponding multiline read-only edit boxes
to display the source of the interrupts.
When the user enables one of these interrupt notification checkboxes, the PC will then be notified
of any interrupts from the (near and/or far) signalling processor boards. IRQ corresponds to the
near devices and IRQ2 to the far devices. The interrupt source string displayed shows the device
(either x829 or x828) and IRQ Flag or Status setting (Hex).
Warning: Application warnings or even fatal errors may be encountered if the Direct
C-BUS Control window is used to view interrupt notifications that are occurring
less than every 10ms. Whilst viewing continuous interrupt notifications the user
should disable the Windows Screen Saver and not attempt any window resizing,
etc.
The Cancel button is used to exit this pop-up panel.
Note: The Direct C-BUS Control window does not modify any of the device form displays or variables.
Therefore, after using the Direct C-BUS Control, certain device form display settings should be
ignored until a General Reset is performed or the form write registers are modified.
1.6.3.21 FFSK Messaging
Unlike the FX828 device forms the FX829 device forms can be set up to receive and transmit
data without clicking on the Update button. This feature is only applicable to FFSK Messaging.
Due to the speed constraints of Windows and the serial communication link, the FFSK messaging
routines controlling the FX829 are performed by the PIC µC.
Note: The EF8000 firmware does not allow the user to operate both the near and far signalling
processor boards in the same FFSK messaging mode (Tx or Rx).
© 2004 CML Microsystems Plc
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