43 lines
1.2 KiB
Markdown
43 lines
1.2 KiB
Markdown
This variant attempts to be as faitful to the Blackmagic mini as
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possible, but also has several diferences.
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The schematic and board have both been designed using Cadsoft EAGLE v6.4.0.
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## Differences
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### Uses 0603 [1608 Metric] components
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Makes reflow soldering much easier.
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### Includes Level Translator
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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.
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### USART Connector
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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).
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### BOOT0 Button
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As well as the standard button for entering USB DFU mode, this variant
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also provides a button for pulling the BOOT0 pin high to activate the
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STM32 SystemMemory bootloeader. This means that /scripts/bootprog.py
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can be used to program and reprogram the chip over the USART1
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interface.
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## Parts and Costings
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* [Parts List](Parts.md)
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Parts Cost (Approximate): £14 + VAT ([uk.farnell.com](uk.farnell.com) August 2013)
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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
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