The maximum clock frequency that can be used with the internal oscillator is 16 MHz, but it's recommended to use a maximum of 12 MHz to ensure stability and accuracy.
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 period, and then enable the watchdog timer by setting the WDGA bit in the WCR register. Make sure to refresh the watchdog timer periodically to prevent a reset.
No, the UART in the STM8S207C8T3TR only supports asynchronous mode. It does not have a clock input pin, so it cannot be used in synchronous mode.
To enable the internal pull-up resistors on the GPIO pins, you need to set the corresponding bit in the PUPR register. For example, to enable the pull-up resistor on port A, set the PUPA bit in the PUPR register.
The minimum voltage required for the STM8S207C8T3TR to operate is 2.95V, but it's recommended to use a minimum of 3.0V to ensure reliable operation.
STM8S207C8T3TR datasheet
by STMicroelectronics
