MATLAB EMBEDDED IDE LINK 4 - FOR USE WITH TEXAS INSTRUMENTS CODE COMPOSER STUDIO Guia do Utilizador Página 482

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Tar get Preferences
SYSCLKOUT
escaler2*Pr
with the exception of zero. When Qualication sampling
period prescaler
=0, a sample is taken every SYSCLKOUT
clock tick. For example, a prescale setting of
0 means that a
sampleistakenoneachSYSCLKOUTtick.
The following gure shows the SYSCLKOUT ticks, a sample
taken every clock tick, and the Qualication type set
to
Qualification using 3 samples.Inthiscase,the
Qualication sampling period prescaler
=0:
In the next gure Qualication sam pling period
prescaler
=1. A sample is taken every two clock ticks, and
the Qualication type is set to
Qualification using 3
samples
. The output signal changes much later than if
Qualication sampling period prescaler
=0.
In the following gure, Qualication sam pling period
prescaler
=2. Thus , a sample is taken every four clock
ticks, and the Qualication type is set to
Qualification
using 3 samples
.
9-90
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