5

EVDP610

outputs are not enabled or turned off.

3.1.9 Error Messages

If for some reason, the communication or instruction did

not take place an error message will appear in the text

box on the top of the GUI, or an error message panel will

tell the user the proper actions to take. It is always a

good idea to update the GUI after an error has occurred

to prevent the board from differing from the GUI in any

way. This maybe accomplished by hitting either the

READ IXDP610 STATUS button or by hitting the RESET

button (the current settings will be lost if RESET is

used). Hit the close button on any error panels to close

the panel.

4.0 SERIAL OPERATION

4.1 RS-232 Serial Operation

This remote control port allows a user to connect a

personal computer as the remote host to the IXDP610.

Utilizing a standard three wire interface and DEI’s

defined communication protocol the user can write a

custom control program for their particular testing needs.

4.1.1 Serial Data Packets

The data packets sent to the IXDP610 over the serial bus

should be of the following format:

To Address

From Address

Op Code

Data

Stop Byte

Where the data is as follows:

Data Byte

Function

Value

To Address

IXDP610 Address

0x02h

From Address

Remote Host Address

Variable [0 to255] Recommend

0x00h

Operation Code

The command hardware code

See Instruction Set

Data1

Any data to send to IXDP610

See Instruction Set

Stop Byte

Serial termination byte

0x0Ah

The data packets returned by the DEI IXDP610 will be of

the following format:

To Address

From Address

Op Code

Data

Error Code

Stop Byte

Where the data is as follows:

Data Byte

Function

Value

To Address

Remote Host Address

Variable [0 to255]

Recommend 0x00h

From Address

IXDP610 Address

0x02

Operation Code

The command hardware code

See Instruction Set

Data

Any data sent from the

IXDP610

One unsigned byte

Error Code

Error is any non-zero byte,

No Error = 0

See Error Code table

Stop Byte

Serial termination byte

0x0Ah

4.1.2 Common Instruction Set & Serial Data Packet

Format:

Instruction

Opcode

(hex)

Form at (num ber of

bytes=> all unsigned

chars)

Get Version1

0x05

Send-5, Receive-6

Get Version2

0x06

Send-5, Receive-6

Set Dead Tim e

0x10

Send-5, Receive-6

Set Pulse W idth

0x20

Send-5, Receive-6

Set Resolution

0x30

Send-5, Receive-6

Enable Outputs

0x40

Send-5, Receive-6

Reset

0x50

Send-5, Receive-6

Set Clock Divide

0x60

Send-5, Receive-6

Set Lockout

0x70

Send-5, Receive-6

Set Clock Select

0x80

Send-5, Receive-6

Read Pulse W idth

0x90

Send-5, Receive-6

Read Resolution

0x93

Send-5, Receive-6

Read Lock Status

0x94

Send-5, Receive-6

Read Clock Divide

0x95

Send-5, Receive-6

Read Output Enable

Status

0x96

Send-5, Receive-6

4.1.3 Common Error Codes

Error Code

Description

Problem

Action

0x00

No Error

N/A

Command was successful,

no errors.

0xE0

General Internal Error

Timing Error on

evaluation board

None Recommended – reset

board. If error is repeatable

contact factory.

0xE1

Invalid Opcode

Command Packet

Incorrect or Corrupted

Verify packet data integrity with

emphasis on op-code byte.

0xE2

Control Latch locked

Can’t write to control latch

Unlock control latch or reset board.