A board slightly different from the Blue Pill

Generic boards that are not Maple or Maple mini clones, and don't contain the additional USB reset hardware
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RogerClark
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Re: A board slightly different from the Blue Pill

Post by RogerClark » Fri May 13, 2016 7:52 pm

The F0 series does not work with the libmaple core, however using the HALMX core it may be possible to make a board variant for that processor

see. http://www.stm32duino.com/viewtopic.php?p=13408#p13408

But you would still need to use an external USB to Serial adaptor or STLink etc

I think its going to be much less hassle if you spend another $5 and buy a Maple Mini ( preferrably one from the Chinese manufacturer called Baite, as these are usually the best quality.

Btw. take a look in the wiki, as it has details on the Baite Maple mini and the reject boards with defaced Bait logos etc. wiki.stm32duino.com

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Rick Kimball
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Re: A board slightly different from the Blue Pill

Post by Rick Kimball » Fri May 13, 2016 8:06 pm

It seems like people should get the maple mini style board if they intend to program using Arduino Style (USB Serial + bootloader). If you plan to use the device with an STlink programmer it is easier to use either the bluepill or redpill or any other stm32f103x boards that breakout the SWD pins.
-rick

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RogerClark
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Re: A board slightly different from the Blue Pill

Post by RogerClark » Fri May 13, 2016 8:12 pm

I suspect most people would prefer to have USB even if they upload via STLink

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Rick Kimball
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Re: A board slightly different from the Blue Pill

Post by Rick Kimball » Fri May 13, 2016 8:29 pm

I'm not suggesting they don't want USB Serial. It is just easier to access the SWD pins on a blue pill than it is on a maple mini. They are clearly marked. On the maple minis you have to connect to pins 21 and 22 and they aren't marked for SWD.
-rick

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RogerClark
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Re: A board slightly different from the Blue Pill

Post by RogerClark » Fri May 13, 2016 8:42 pm

Although the Maple mini doesnt have the SWD pins marked, it does have a good USB reset circuit and a nice strong usb connector.

The Blue Pill has the wrong USB pull-up resistor and needs to be modified before it can be used on USB, and AFIK the way we reset the USB on these generic boards actually breaks the USB spec, and doesn't always work if connected via a USB hub etc

If vcc-gnd.com would fit a PFET on the Blue Pill and made the usb connector stronger, it would be a much better product, albeit they would have to charge more as their costs would be a bit higher

aminous
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Re: A board slightly different from the Blue Pill

Post by aminous » Sat May 14, 2016 3:42 pm

Thanks Roger. I've decided to work on M1 cores rather than M0s to avoid further problems!

@Rick Thanks.

umeshjayan
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Re: A board slightly different from the Blue Pill

Post by umeshjayan » Fri Sep 08, 2017 9:33 am

Hi.
Anyone have schematic for this board?

http://i66.tinypic.com/8w9pg2.jpg

Best regards
Umesh

dannyf
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Re: A board slightly different from the Blue Pill

Post by dannyf » Sat Sep 09, 2017 1:01 pm

the board seems to be quite easy to trace.

short of that, flip those pins to find out how it is connected.

zmemw16
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Re: A board slightly different from the Blue Pill

Post by zmemw16 » Sat Sep 09, 2017 1:25 pm


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martinayotte
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Re: A board slightly different from the Blue Pill

Post by martinayotte » Sat Sep 09, 2017 1:54 pm

The above board variant provided by umeshjayan is slightly different than common BluePill, it has only 1 BOOT jumper instead of 2...

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