From 7e7ebfc2bec1a8b63d49a9733d6fdd5d7f2ff992 Mon Sep 17 00:00:00 2001 From: Richard Eoin Meadows Date: Mon, 19 Aug 2013 15:20:23 +0100 Subject: [PATCH] Wrote README text --- hardware/contrib/richardeoin/README.md | 34 ++++++++++++++++++++++---- 1 file changed, 29 insertions(+), 5 deletions(-) diff --git a/hardware/contrib/richardeoin/README.md b/hardware/contrib/richardeoin/README.md index 2ba6c29..7796b16 100644 --- a/hardware/contrib/richardeoin/README.md +++ b/hardware/contrib/richardeoin/README.md @@ -1,14 +1,38 @@ +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 -## 0603 Parts +### Differences -## Compatible with USB to Serial +#### Uses 0603 [1608 Metric] components -## SparkFun locking headers +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](https://www.sparkfun.com/tutorials/114). + +#### 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.md] + +Parts Cost (Approximate): £14 + VAT ([uk.farnell.com](uk.farnell.com) August 2013) +Programming Cable: £8.49 + VAT ([uk.farnell.com](http://uk.farnell.com/samtec/ffsd-05-d-06-00-01-n/ribbon-cable-idc-152-4mm-grey-10way/dp/1667659) August 2013)3D -## Level Translator -## Standard programming connector