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stlink: update docs on how ti reflash BMP back to STLink original firmware (#572) 

* stlink: update docs on how ti reflash BMP back to STLink original firmware

* stlink: specify v2 in docs on reflashing back
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Ondrej Mikle 2020-01-11 16:52:22 +01:00 committed by UweBonnes
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commit 2137e775a4
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src/platforms/stlink/README.md
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@ -83,3 +83,8 @@ PC13 low -> SWIM internal connection
PC13/PC14 both low -> ST-LinkV2 on some F4_Diso boards.
## Reflashing BMP back to ST-LINKv2 original firmware
If you built the firmware to use ST-Link v2's bootloader (with `ST_BOOTLOADER=1`), you should be able to reflash back to original firmware using the [STLinkUpgrade utility](https://www.st.com/en/development-tools/stsw-link007.html). Do not check the "Change type" checkbox unless you know what you are doing, as it will change the USB VID:PID and change how it operates.
Replug STLink before flashing if the utility doesn't detect it.