EV8000 Datasheet, PDF (23/35 Pages) CML Microcircuits – Evaluation Kit User

Evaluation Kit User Manual for FX828 and FX829
EV8000
Note:
The ES8000 Windows Application Software can be used to evaluate FX828 and FX829 devices
outside their specified characteristics. Therefore, minimum and maximum device form input
values used within the application are based on the validity of the equations used to generate the
programming data and register size constraints,
ie. An 8-bit register allows an integer input of 0-255.
1.6.3.14 Writing and Reading the FX828 and FX829 device registers
When the write register of a device form has been set up, the settings can be loaded into the
appropriate device by clicking on the Update button. This will also acquire the settings of the read
registers. The read register settings will then be displayed on the device form view. To minimise
data exchange between the PC and EV8000, only modified write register settings are passed to
the µC.
1.6.3.15 Write Register Input Controls
The device forms have been created to allow the user to quickly and easily set-up the device write
registers.
Checkboxes are used for the majority of write register input controls. Each checkbox usually
corresponds to a data bit in a write register. The write register bit is set to ‘1’ when the checkbox
is checked and set to ‘0’ when unchecked. The toggling between checked and unchecked is
achieved by clicking on the checkbox area.
Due to variations in the Windows libraries, the checkbox display on a Windows 3.11 operating
system will have a different appearance to that on Windows NT and '95. The differences in
display on the various Windows platforms are as follows:
Windows NT and '95
The checkbox will have a 3D appearance with a 9 (tick) indicating the checkbox is checked (Bit
set to ‘1’). The inside of the checkbox is a different colour to the form foreground colour. Note: if a
checkbox is ever disabled by the software, the inside of the checkbox will be greyed together with
the checkbox description text. Once disabled the user cannot change the state of the checkbox.
Windows 3.11
The checkbox will have a 2D appearance with a X (cross) indicating the checkbox is checked (Bit
set to ‘1’). The inside of the checkbox is the same colour as the form foreground colour. Note: if
a checkbox is ever disabled by the software, the inside of the checkbox remains the same colour
but the checkbox description text will be greyed. Once disabled, the user cannot change the state
of the checkbox.
To enter frequencies, integer values and codes, edit boxes are provided. The user should click
on an edit box and enter the required value. If the input value is outside the evaluation limits or
the format of data is invalid, an error or warning pop-up window message will be encountered
when the Update button is clicked.
To select from a list of settings, dropdown lists (combo boxes) and vertically scrolled multiline edit
boxes are provided.
© 2004 CML Microsystems Plc
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UM8000/4