WM231 ESC Power board - o-gs/dji-firmware-tools Wiki

Original URL: https://github.com/o-gs/dji-firmware-tools/wiki/WM231-ESC-Power-board

Table of Contents

Function
Variants
Parts
Programming
External interfaces
Service interfaces
Board view
Schematics

Function

The board acts as battery power relay and contains all four Electronic Speed Control circuits of the quadcopter.

There seem to be a different version on this board in ADS-B vs non-ADS-B drones; it is uncertain whether these are interchangeable.

Variants

There are multiple versions of the board:

Marking Overview
PP001???.04 The first ADS version.
PP001432.05 The first non-ADS version.

Parts

Marking Amt. Pkg. Function Specification
330 4 SMD Resistor, 3.3 Ohm
220 4 SMD Resistor, 2.2 Ohm
100 2 SMD Resistor, 1 Ohm
R004 12 SMD Resistor, 0.004 Ohm
7934 NL935F 12 DFN3x3A-8L_EP AON7934, 30V Dual Asymmetric N-Channel MOSFET
Dji IESC1000 C#JH235 4 TMS320F280
Dji IESC3000 C#RD30 ??940 4 TMS320F280
47 76K2R C 2
1D030E 1930 D2 0772 1
16T4 7 2
H1A 1

Programming

Chips Firmware Description
IESC1000/IESC3000 (TMS320F280) [m1200](/o-gs/dji-firmware-tools/wiki/Firmware m1200)-[m1203](/o-gs/dji-firmware-tools/wiki/Firmware m1200) Electronic speed control programming.

External interfaces

Marking Overview
TODO

Service interfaces

The following service pads exist on this board:

Marking Overview
TODO

Board view

Top of a PP001???.04 board:

WM231 ESC and Power board v4 A top

Bottom of the PP001???.04 board:

WM231 ESC and Power board v4 A bottom

Top of a PP001432.05 board:

WM231 ESC and Power board v5 A top

Bottom of the PP001432.05 board:

WM231 ESC and Power board v5 A bottom

Schematics

No schematics available.