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WM301 Live View Encoder board

mefistotelis edited this page Nov 29, 2020 · 4 revisions

Table of Contents

Function
Variants
Parts
Programming
External interfaces
Service interfaces
Board view
Schematics

Function

The Live View encoder board is responsible for preparing digital video signal for live FPV feed. It encodes the video and sends the stream to WiFi board. It is part of the WiFi Module.

The board contains DM3xx series media processor which does the encoding and controls input and output lines. All other components on the board are just supplemental chips required by DM3xx to work.

Variants

Known versions of the board are shown below.

Marking Overview
WM301_DM368_V1
WM301_DM368_V2

Parts

Marking Amt. Pkg. Function Specification
TI DM368ZCED DM368 Media Processor
30H22 D9LHT 1 MT47H64M16HR-25E 1Gbit DDR2-800; RAM from DM368
TODO NAND for DM3xx, MX30LF1G/MT29F1G?

Programming

Chips Firmware Description
DM368, MT47H64M16, MX30LF1G/MT29F1G? m0800 Live feed video encoding.

External interfaces

Marking Overview
TODO

Service interfaces

The following service pads exist on this board:

Marking Overview
WIFI_TX
WIFI_RX
UART0_TX
UART0_RX
GND
TV_OUT
368_SDA
368_SCL
5V
DP
DM
UART1_TX
UART1_RX
3V3
BOOT Bootloader mode
12V
GND

Board view

Top of a WM301_DM368_V1 board:

WM301 Wifi FPV Encoder board v1 A top

Bottom of the WM301_DM368_V1 board:

WM301 Wifi FPV Encoder board v1 A bottom

Top of a WM301_DM368_V2 board:

WM301 Wifi FPV Encoder board v2 A top

Bottom of the WM301_DM368_V2 board:

WM301 Wifi FPV Encoder board v2 A bottom

Schematics

No schematics available.

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