The maximum clock frequency that can be used with the internal oscillator is 16 MHz, but it's recommended to use a maximum of 14 MHz to ensure stability and accuracy.
To configure the watchdog timer to reset the microcontroller, you need to set the WDPG bit in the WWDG_CFR register to select the watchdog timer prescaler, and then set the W bit in the WWDG_CFR register to enable the watchdog timer. You can also set the RST bit in the WWDG_CFR register to select the reset type.
No, the UART in asynchronous mode is limited to a maximum baud rate of 115200 bps. If you need a higher baud rate, you need to use the UART in synchronous mode or use a different communication interface such as SPI or I2C.
To enable the brown-out reset (BOR) feature, you need to set the BOREN bit in the PWR_CSR register. You can also adjust the voltage threshold by setting the VBOR bits in the PWR_CSR register.
Yes, the ADC can be used in differential mode with an external reference voltage. You need to set the ADMD bit in the ADC_CSR register to select the differential mode, and then connect the external reference voltage to the VREF+ pin.
STM8AF6226TCSSSY datasheet
by STMicroelectronics
