blackmagic

History

Richard Eoin Meadows 73139a77b7 Fixed up README		2013-08-19 15:21:36 +01:00
..
Parts.md	Added switch on BOOT0	2013-08-19 15:04:56 +01:00
README.md	Fixed up README	2013-08-19 15:21:36 +01:00
blackmagic_richardeoin.brd	Added switch on BOOT0	2013-08-19 15:04:56 +01:00
blackmagic_richardeoin.sch	Added switch on BOOT0	2013-08-19 15:04:56 +01:00

README.md

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

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

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 List

Parts Cost (Approximate): £14 + VAT (uk.farnell.com August 2013) Programming Cable: £8.49 + VAT (uk.farnell.com August 2013)3D