Casio EA-200 Technical Reference page 10

Output Example
When the list is: 85(1010101), 34( 100010), 187(10111011), 204(11001100)
Clock
D8
D7
D6
D5
D4
D3
D2
D1
85 34
Mic
(Channel = 10)
0 Clear channel information.
1 Active
Analog Out, speaker
(Channel = 11, 12)
0 Clear channel information.
1–65535 Number of loops
Select Data
Select the data to be output by the sampling period.
0 List data
1 CH1 sampled values
2 CH2 sampled values
3 CH3 sampled values
10 Mic sampled values
Step
(Select Data 1, 2, 3, 10)
Number of steps for output sampled data
1, 2, 4, 8, 16
187 204
<Output Trigger>
Following receipt of Command 3, output starts as soon as a Trigger Source is
generated.
The following can be specified as a Trigger Source.
0: None, 1: [Start] key, 10: Countdown, Command 8
Output is interrupted when the Start/Stop key is pressed.
<Analog Out Port>
Output is from Pin 1 of CH3.
Vout 3V (Iout maximum 100mA)
Analog, SONIC Sampling
3. Post-Processing
(Operation 1–4, 7–10)
0 None (no calculation)
1 d/dt
2 d 2 /dt 2
10 FFT (Fast Fourier Transformation)-Real
11 FFT-Real, Imaginary
Calculation Methods
<<First derivative>>
(dx/dt) = (X – X
n n+1
(dx/dt) = (X – X
1 2
(dx/dt) = (X – X
m m
x : nth data
n
t: Sampling period
: Maximum value of n
m
<<Second derivative>>
(d 2 x/dt 2 ) = (X – 2
n n+1
2 2
(d x/dt ) = (X – 2
1 3
(d 2 x/dt 2 ) = (X – 2
m m
* First and second derivatives are supported only when timer is the sampling
trigger.
– 10 –
) / (2t)
n–1
) / t
1
) / t
m–1
`
X + X ) / t 2
n n–1
` 2
X + X ) / t
2 1
`
X + X ) / t 2
m+1 m–2