"LC Technology" STM32F103C8T6

Generic boards that are not Maple or Maple mini clones, and don't contain the additional USB reset hardware
zmemw16
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Re: "LC Technology" STM32F103C8T6

Post by zmemw16 » Thu Mar 03, 2016 3:08 am

saving face?

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ahull
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Re: "LC Technology" STM32F103C8T6

Post by ahull » Thu Mar 03, 2016 8:42 am

zmemw16 wrote:saving face?
Shaving face? :D
- Andy Hull -

TomaTLAB
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Re: "LC Technology" STM32F103C8T6

Post by TomaTLAB » Thu Mar 03, 2016 10:03 am

Organoleptic QA test... may be taste?

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ahull
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Re: "LC Technology" STM32F103C8T6

Post by ahull » Thu Mar 03, 2016 9:32 pm

TomaTLAB wrote:Organoleptic QA test... may be taste?
Sweet!.. this one works. Urgh... bitter... needs a software upgrade...
- Andy Hull -

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ddrown
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Re: "LC Technology" STM32F103C8T6

Post by ddrown » Sat Mar 05, 2016 5:38 pm

I had some time to mess with this board again today, and I used a soldering iron to pull the bridge between 5V and USB D- apart. And now the stm32duino bootloader works on it :)

Slightly blurry close up after picture:
IMG_20160305_114048-2.jpg
IMG_20160305_114048-2.jpg (72.73 KiB) Viewed 892 times

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LightningStalker
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Re: "LC Technology" STM32F103C8T6

Post by LightningStalker » Fri Nov 03, 2017 6:15 am

Some probing reveals that the shield on the USB connector does not appear to be connected to ground in any way as it is on the Genuino boards and most other USB devices. This is a potential ESD issue for me because I will typically touch off on the USB shield since it is usually the largest and easiest to access ground point. At least in my case, I'm going to solder it to the nearby ground connection to S1 to ease my mind. When it comes to ESD I don't like to mess around.

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