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:

    • uart (PA_2, PA_3), (PA_9,PA_10) tx and rx 9600
    • pwm PA_4, PA_6, PA_7, PB_1
    • HSI and HSE with quartz 8Mhz (auto detect ok)

    untested yet:

    • i2c
    • spi
    • analogin

    issues

    • baud rate not exact (3% error of HSI). HSE with 8Mhz quartz does not help. Usart clock is HSI regardless use HSE?
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