Kramer VM-2UHD User Manual

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VM-2UHD - Packet Protocol Structure
8 Packet Protocol Structure
The packet protocol is designed to transfer large amounts of data, such as
files, IR commands, EDID data, etc.
8.1 Using the Packet Protocol
To use the packet protocol:
4. Send a command: LDRV, LOAD, IROUT, LDEDID
5. Receive Ready or ERR###
6. If Ready:
 Send a packet
 Receive OK on the last packet
 Receive OK for the command
7. Packet structure:
 Packet ID (1, 2, 3…) (2 bytes in length)
 Length (data length + 2 for CRC) - (2 bytes in length)
 Data (data length -2 bytes)
 CRC - 2 bytes
01
02
03
04
05…
Packet ID
Length
Data
CRC
8. Response:
~NNNNSPOKCR LF
Where NNNN is the received packet ID in ASCII hex digits.

Kramer VM-2UHD Specifications

General

Brand	Kramer
Model	VM-2UHD
Category	DVD Player
Language	English

Summary

Introduction

Getting Started

Achieving the Best Performance

Guidance on optimizing signal quality and placement for optimal performance.

Safety Instructions

Essential precautions for safe operation and handling of the device.

Recycling Kramer Products

Information on responsible disposal and recycling of electronic equipment.

Overview

Defining the VM-2UHD 1:2 HDMI DA

Detailed explanation of the VM-2UHD model and its capabilities.

Connecting the VM-2UHD

Acquiring an EDID

Process for capturing or selecting EDID information for display compatibility.

Default EDID

Technical Specifications

Protocol 3000

Syntax

Rules and format for sending commands to the device.

Kramer Protocol 3000 Commands

Comprehensive list and description of available commands for device control.

Packet Protocol Structure

Using the Packet Protocol

Steps and structure for utilizing the packet protocol for data transfer.

Calculating the CRC

Explanation and example for calculating Cyclic Redundancy Check (CRC).

Parameters

Stage

Defines the meaning of 'stage' in device parameters.

EDID Source

Specifies the available sources for EDID information.

Signal Validation

Explains the validation states for input/output signals.

HDCP Types

Details the different modes for High-bandwidth Digital Content Protection.

LIMITED WARRANTY