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Timeline for STM32F401 fails to enter DFU mode

Current License: CC BY-SA 4.0

11 events
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Feb 24, 2022 at 7:56 answer added gtsouk timeline score: 0
Sep 15, 2021 at 6:49 comment added davidcary possibly related: STM32F401CCU6 DFU Mode problems?
Sep 14, 2021 at 18:03 answer added Justme timeline score: 2
Sep 14, 2021 at 17:36 comment added nschurando Given the fact that STM32 mcus are heavily impacted by the current shortage of integrated circuits, I wouldn't be surprised if you had received a poorly working clone. But that's only speculative, could be a hundred other things.
Sep 14, 2021 at 17:21 comment added Justme Or the hardware has a design flaw like many of the so called STM32 Blue Pills. If you don't have the schematics or can't reverse engineer the hardware, there's no way to be sure.
Sep 14, 2021 at 17:06 history edited Transistor CC BY-SA 4.0
edited body; edited title
Sep 14, 2021 at 16:11 history edited SamGibson CC BY-SA 4.0
Removed signature per site rule https://electronics.stackexchange.com/help/behavior
Sep 14, 2021 at 15:21 comment added Ian Liu Rodrigues I've bought from this link on AliExpress: pt.aliexpress.com/item/4000084631884.html, maybe it is pirate? The link doesn't provide a datasheet. Nonetheless, the board worked the first time, and I was hoping it was a dumb mistake that could be reverted.
Sep 14, 2021 at 13:59 comment added Justme Which board you have? Where are the schematics to see if there are problems in the design or photos of the built device if there are problems?
S Sep 14, 2021 at 13:55 review First questions
Sep 14, 2021 at 22:05
S Sep 14, 2021 at 13:55 history asked Ian Liu Rodrigues CC BY-SA 4.0