Prometheus Assembly MCU - nmschulte/rusefi GitHub Wiki

2 MCU block

(a) - MCU:

Component List:

U5_2

PCB Top Side:

Orientation

(b) - ground/power connections

Component List:

Components

PCB Top Side:

Placement

(c) - minimal circuitry:

Component List:

Components

PCB Top Side:

Placement

PCB Bottom Side:

Placement Bottom Side

Warning for Rev0.1! Be careful when soldering C42 and C43 - they should not be in contact!

(d) - pull-up resistors:

Component List:

Components

PCB Top Side:

Placement

PCB Bottom Side:

Placement Bottom Side

(e) - crystal:

Component List:

Component

PCB Top Side:

Placement

The 1st pin is marked with a little dash: Placement Dash

(f) - LED and programmer connector:

Component List:

Components

PCB Top Side:

Placement

Connecting the programmer:

Now check if MCU works using ST-Link/V2 programmer:

Make sure that an external +12V power supply is always connected when using the board: Programmer

SWD Connector pinout:

The programmer connector pinout (from left to right): 1 - the first pin is not used 2 - GND (ground) 3 - NRST (reset) 4 - SWCLK 5 - SWDIO

Connector Pinout

rusEFI
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