STM8AF6223PAAU Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be used with the internal oscillator?
  The maximum clock frequency that can be used with the internal oscillator is 16 MHz. However, it's recommended to use a clock frequency of up to 14 MHz to ensure reliable operation.
• How do I configure the watchdog timer to reset the microcontroller?
  To configure the watchdog timer to reset the microcontroller, you need to set the WDPG bit in the WCR register to select the watchdog timer prescaler, and then set the WDGA bit in the WCR register to enable the watchdog timer. You can also use the IWDG (Independent Watchdog) to reset the microcontroller.
• What is the minimum voltage required for the microcontroller to operate?
  The minimum voltage required for the STM8AF6223PAAU to operate is 2.95V. However, it's recommended to use a voltage of at least 3.0V to ensure reliable operation.
• How do I use the UART in asynchronous mode?
  To use the UART in asynchronous mode, you need to set the M1 and M0 bits in the USART_CR2 register to select the asynchronous mode, and then configure the baud rate using the USART_BRR register. You also need to enable the UART transmitter and receiver using the USART_CR1 register.
• What is the maximum current that can be sourced or sunk by the GPIO pins?
  The maximum current that can be sourced or sunk by the GPIO pins is 20 mA. However, it's recommended to limit the current to 10 mA to ensure reliable operation and prevent overheating.