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ASTi ACE Studio Components Reference Guide Rev. M DOC-01-TELAS-CRG-4

14.2. Host Out

Summary: The Host Out component provides a way to send control values from

the model to an destination host computer via the system’s ethernet interface. A

future revision of the Host Out component will include transmission of model

control to embedded state machines via cells.

Users create and modify Host Out components using the ACE IO Packet Editor.

With this tool users specify the outgoing host data packet by UDP port, then link

model control sources to individual control fields within the outgoing packet.

Model control sources include any component with a control output, like: host

input components, math components and component status fields.

Description: The IO Packet Editor provides a means to functionally assemble a

host UDP packet from individual model controls. The Host Out component is a

composite collection of specific data fields from model controls, packed into an

outgoing ethernet packet.

The Host Out component is analogous to the various control objects in Model

Builder. The fundamental difference between the Host Out component and (MB)

control objects is:

1. Whereas MB included a separate control object for each data type, the Host

Output component encompasses all fields within an outgoing packet.

2. Additionally the Host Out accommodates all available data types.

The process for creating and using Host Out follows:

1. Using the IO Packet Editor, specify the UDP port of the destination host com-

puter and the most-least significant data order (big or little endian).

2. To create a field within a Host Out component, specify the parameters defining

the data field (offset byte location within the packet, or in the case of a boolean

field, offset byte and bit, and the data type) and link to a model control source.

Each field in the Host Out Component is defined by:

A. Name – The name field is used as a descriptor for the component.

B. Offset – The location of data field within packet, defined by the byte offset

from the start of the data field. The location of a boolean input is further

defined by the bit position within a particular byte.

C. MsgLen – Packet length in bytes.

D. Type – The Host Output can be set to one of these data types:

Unsigned Integer, 8-Bit (uint8)

Unsigned Integer, 16-Bit (uint16)

Unsigned Integer, 32-Bit (uint32)

Unsigned Integer, 64-Bit (uint64)

Signed Integer, 8-Bit (int8)

Signed Integer, 16-Bit (int16)

Signed Integer, 32-Bit (int 32)

Signed Integer, 64-Bit (int64)

Floating Point, 32-Bit (float32)

Floating Point, 64- Bit (float64)

Boolean, 1-Bit

E. Used by – The source field defines the link to a model control source.

F. Description – Comments field.

Control Outputs

N/A

Type Default Value

Control Data n/a

Description: The Host Output output value is based on parameters

set by the user (offset byte, data type, source, etc.).

Internal Parameters

BigEndian

Type Default Value

boolean false

Description: Changes the byte order. The endianness defines the

byte order for the data in a packet.

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