Evaluation Kit User Manual for FX828 and FX829

EV8000

© 2004 CML Microsystems Plc

23

UM8000/4

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

(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.