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Added more description about the BOOT0 pin

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Richard Eoin Meadows 2013-09-04 20:46:48 +01:00
parent 1ca1c6c470
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hardware/contrib/richardeoin/README.md
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@ -36,16 +36,22 @@ header. The hole centres are
As well as the standard button for entering USB DFU mode, this variant 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 also provides a button for pulling the BOOT0 pin high to activate the
STM32 SystemMemory bootloeader. This means that /scripts/bootprog.py STM32 SystemMemory bootloader. Hold this button when plugging in the
can be used to program and reprogram the chip over the USART1 module to enter bootloader mode where
interface. [scripts/bootprog.py](scripts/bootprog.py) can be used to program and
reprogram the chip over the USART1 interface.
This is useful for programming a brand new or 'bricked' blackmagic
with the DFU firmware (src/blackmagic_dfu.bin), the standard DFU mode
should be used for regualar firmware updates.
## Parts and Costings ## Parts and Costings
* [Parts List](Parts.md) * [Parts List](Parts.md)
Parts Cost (Approximate): £14 + VAT Parts Cost (Approximate): £14 + VAT
([uk.farnell.com](http://uk.farnell.com) August 2013) Programming ([uk.farnell.com](http://uk.farnell.com) August 2013)
Cable: £8.49 + VAT
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) ([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) August 2013)