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Three Console IO examples
#1
Recently I bought from eBay two very cheap boards with 20-pin STM32F030F4P6 and 48-pin STM32F103C8T6
microcontrollers just for fun.
I could not find good quality schematic in the web, so, having a couple of free days, I made my own versions.
For the 20-pin chip I made as well an alternative version with free PA9 and PA10 pins reserved for I2C usagel.
Then I made very simple generic EmBitz projects, using STM32CubeMX, implementing only console IO through
USART ports.
Here I am presenting both projects and, additionally, also a similar project for NUCLEO-L476RG.

vdaniel


Attached Files
.zip   F030F4P6_Console.zip (Size: 614.95 KB / Downloads: 11)
.zip   F103C8T6_Console.zip (Size: 503.51 KB / Downloads: 34)
.zip   L476RGT_Console.zip (Size: 738.93 KB / Downloads: 12)
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#2
(10-16-2017, 07:33 AM)vdaniel Wrote: ...........
I could not find good quality schematic in the web, so, having a couple of free days, I made my own versions.
...........

Just taking a look at the F103 schematic ....
... there is still that buggy R10 at the USB connector. Probably on your board too.

It should be 1.5K rather than 10K for reliable USB operation.
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#3
(10-22-2017, 09:15 AM)armloocee Wrote:
(10-16-2017, 07:33 AM)vdaniel Wrote: ...........
I could not find good quality schematic in the web, so, having a couple of free days, I made my own versions.
...........

Just taking a look at the F103 schematic ....
... there is still that buggy R10 at the USB connector. Probably on your board too.

It should be 1.5K rather than 10K for reliable USB operation.

Hi, armloocee,

Thank you very much.  The value on my boards is 10k.  But I
make note on the attached corrected schematic.


Attached Files
.pdf   STM32F103C8T6_DEV_BOARD_V2.pdf (Size: 39.1 KB / Downloads: 28)
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#4
I am sorry, there was some errors in the schematic.

Please, see attached the corrected one.


Attached Files
.pdf   STM32F103C8T6_DEV_BOARD_V2.pdf (Size: 33.22 KB / Downloads: 20)
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