STM8L151C4T6 datasheet by STMicroelectronics

STM8L151C4T6 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.
• How do I configure the watchdog timer to reset the microcontroller?
  To configure the watchdog timer to reset the microcontroller, set the WDPG bit in the WCR register to 1, and then set the WDV bit to 1 to enable the watchdog timer. The watchdog timer will then reset the microcontroller if it is not reset or disabled within the timeout period.
• What is the purpose of the BOR (Brown-Out Reset) circuitry?
  The BOR circuitry is used to reset the microcontroller if the supply voltage falls below a certain threshold (typically around 1.9V). This helps to prevent the microcontroller from operating erratically or unpredictably when the supply voltage is low.
• How do I use the UART peripheral to transmit and receive data?
  To use the UART peripheral, configure the UART registers (e.g. USART_CR1, USART_CR2, USART_BRR) to set the baud rate, word length, and other parameters. Then, use the USART_DR register to transmit and receive data. Make sure to enable the UART clock and configure the GPIO pins as UART pins.
• What is the purpose of the option bytes in the STM8L151C4T6?
  The option bytes are used to store configuration data, such as the boot mode, clock configuration, and other settings. They can be programmed using the STMicroelectronics programming tools or other third-party tools.