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This variant attempts to be as faitful to the Blackmagic mini as possible, but also has several diferences.

Blackmagic richardeoin PCB

Details

  • The schematic and board have both been designed using Cadsoft EAGLE v6.4.0.

  • The board size is 40mm x 16mm.

  • The programming connector is an ARM 10-PIN Interface as described here

Differences

Uses 0603 [1608 Metric] components

Makes reflow soldering much easier.

Includes Level Translator

This board incorporates the same level translator used in the full-sized Blackmagic, so it can be used to safely program 2.7V or 1.8V systems.

USART Connector

The STM32F103's USART1 peripheral is broken out into a 0.1" header. The hole centres are slightly offset to allow a press-fit.

BOOT0 Button

As well as the standard button for entering USB DFU mode, this variant also provides a button for pulling the BOOT0 pin high to activate the STM32 SystemMemory bootloeader. This means that /scripts/bootprog.py can be used to program and reprogram the chip over the USART1 interface.

Parts and Costings

Parts Cost (Approximate): £14 + VAT (uk.farnell.com August 2013) Programming Cable: £8.49 + VAT (uk.farnell.com August 2013)