Casio EA-200 Technical Reference
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Casio EA-200 Technical Reference

Casio EA-200 Technical Reference

Casio ea-200 calculator-tools: user guide
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EA-200
Technical Reference
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Contents
Sampling ................................................................................................ 2
Analog Sampling .................................................................................... 3
Memory .................................................................................................. 3
Pulse Sampling ...................................................................................... 4
Command Tables ................................................................................... 5
Command 1: Channel Settings .............................................................. 9
Command 3: Sampling and Trigger Settings ........................................ 12
Command 4: Conversion Equation Settings ........................................ 14
Command 5: Data Range Settings ...................................................... 15
Command 7: Status Check .................................................................. 16
Command 10: Power Supply Setting ................................................... 17
RS-232C Communication .................................................................... 17
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  • Page 1: Table Of Contents

    Command Tables ................... 5 Command 1: Channel Settings .............. 9 Technical Reference Command 3: Sampling and Trigger Settings ........12 Command 4: Conversion Equation Settings ........14 Command 5: Data Range Settings ............15 Command 7: Status Check ..............16 Command 10: Power Supply Setting ...........

  • Page 2: Sampling

    Communication — — — — Key Press — — — — Trigger — Communication — — while Sampling Warm up is not supported during long-period sampling. SONIC sampling triggered by CH1, CH2, or CH3 is not supported. – 2 –...

  • Page 3: Analog Sampling

    120000 ([Number of Variable using power supply command (Command 10). Channels Used] + 1) 17140 Sampling Interval * The number of samples is 2^n when FFT Samples (n) is used. 100msec 5pin Power supplied during ready state. – 3 –...

  • Page 4: Pulse Sampling

    Auto-ID +5.3V DC +5.3V DC • List (N line data) {CH1 data n, CH2 data n, CH3 data n, SONIC data n, DIG IN data n, sampling Vin-low 0–5V Not used time n} (n: number of samples at the point that request is made) 2.

  • Page 5: Command Tables

    Channel 1 Channel 2 Channel 3 Microphone • Channel = 1, 2, 3 or 4, Operation = 5, 6, 11 { 1, Channel, Operation, Pin No, Trigger Threshold, Trigger Edge } Pin No Trigger Threshold Trigger Edge (Operation = 5, 6) 1pin Vin (±10V)
  • Page 6 Command 3 - Sample and Trigger Setup { 3, Sampling Interval, Number of Samples, Record Time, Trigger Source, Trigger Threshold, Trigger Edge, Clock Source } Sampling Interval Number of Samples Record Time 0.00002 Number of seconds 1 to Number of samples...
  • Page 7 Input 0 for constants that are not used. • When the conversion result of the “conversion equation” selected by Command 4 causes an overflow, the EA-200 sends a result of zero (0) to the calculator. Command 5 - Data Range Setup...
  • Page 8 • An error occurs when fraction data is sent. • Send commands to the EA-200 in accordance with the command table contents. • An error occurs when a parameter that does not exist in the command table is sent. • The EA-200 uses six digits for internal calculations.

  • Page 9: Command 1: Channel Settings

    Clear Command 1 data of specified channel. Auto-ID Digital Out Perform sampling using automatically recognized sensor. (Channel = 6) Perform 0 to 5V sampling when recognition is not possible. Clear Dig O channel information. Voltage sampling 1 to 32 Number of loops Resistance sampling 1–100kΩ...
  • Page 10 Output Example <Output Trigger> When the list is: 85(1010101), 34( 100010), 187(10111011), 204(11001100) Following receipt of Command 3, output starts as soon as a Trigger Source is generated. Clock 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.
  • Page 11 In addition, quadratic data is sent when data is requested. • When 10 and 11 (FFT) After sampled data is sent, FFT real number part data is sent when data is requested. In addition, FFT imaginary number part data is sent when data is requested.

  • Page 12: Command 3: Sampling And Trigger Settings

    20 Countdown When [Start/Stop] key is pressed or when Command 8 is received, { 3, Sampling Interval, Number of Samples, Record Time, Trigger Source, Trigger countdown is performed by beeping at 1-second intervals the number of Threshold, Trigger Edge, Clock Source } times specified by count number, and then sampling starts.
  • Page 13 3 Difference Rising value is greater than hysteresis lower limit. Sampling started when [Current Value] – [Previous Value] > [Trigger To trigger at a target threshold, increase or decrease the hysteresis part with Threshold] the edge settings to specify the threshold.

  • Page 14: Command 4: Conversion Equation Settings

    Polynomial: Input constants in sequence from Kn = 0 X > 0 9 Geometric Mixed polynomial: Input constants in sequence from m= 4 to 1, n = 0 to 5. 10 Modified geometric X > 0 11 Reciprocal logarithmic [K In(K –1...

  • Page 15: Command 5: Data Range Settings

    Command 5: Data Range Settings 1– Number of steps (Specifying 2 sends ever other data item). { 5, Channel Select, Data Select, Data Begin, Data End, Step, K (, FFT Samples) } –1 Send using step equivalent to [Number of Sampled Data] [Specified Value K] Cannot be used during sampling.

  • Page 16: Command 7: Status Check

    Command 7: Status Check { 7 } After Command 7 is received, this function sends EA-200 status information upon a data request from the calculator. Status Request Line Line Line Basic Information Status 0: Standby 31 Channel 2 Setup Post-Processing...

  • Page 17: Command 10: Power Supply Setting

    If a sampling Trigger Source is generated before supply time is reached, supply (4) Baud rate : 38400 bps. time takes priority and sampling starts after it is reached. When parameter is –1, (5) Parity bit : none. however, sampling starts as soon as sampling Trigger Source is generated.
  • Page 18 Check Type: A (Ascii) Type Form Line Offset Packet size 0×FF Area Check Type (Char, 1byte) : ASCII Number 1 , ASCII Number 2 , … ASCII Number N ASCII Form (Char, 1byte) Variable List Line (Hex, 2byte Big endian) 0×0001~...
  • Page 19 1 Except the star code, add the data code to send (hexadecimal number) one by one byte. 2 As a result, one byte of the code that excludes the overflowed digit is set to “SUM”. 3 Calculate the complementary number for 2 of SUM’. The answer is used as the checksum code.
  • Page 20 CASIO COMPUTER CO., LTD. 6-2, Hon-machi 1-chome Shibuya-ku, Tokyo 151-8543, Japan SA0601-A –2–...

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