Nothing Special / mbed-STM32F030F4

Modification of mbed-src library only for STM32F030F4, very cheap microcontroller in 20-Pin TSSOP package, with 16Kbytes of Flash and 4Kbytes of Ram. **Target for online compilator must be Nucleo 32F030R8.**

Dependents:   STM32F031_blink_LED_2

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    tested:

    • Serial (PA_2, PA_3), (PA_9,PA_10)
    • PwmOut PA_4, PA_6, PA_7, PB_1
    • AnalogIn PA_0, PA_1, PA_2, PA_3, PA_4, PA_5, PA_6, PA_7, PB_1
    • HSE with xtal 8Mhz + 2*22pF (auto detect ok)
    • i2c (PA_10, PA_9)

    untested yet:

    • spi

    issues

    • baud rate not exact (because 3% error of HSI) (Frame errors on PC side). But HSE with 8Mhz xtal does not help. Usart clock is HSI regardless use HSE?
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