STR711FR1T6 datasheet by STMicroelectronics

STR711FR1T6 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 32 MHz, but it's recommended to use a clock frequency of 16 MHz or lower to ensure reliable operation.
• How do I configure the watchdog timer?
  The watchdog timer can be configured using the WWDG_CR register. You need to set the WWDG_CR_WDGA bit to enable the watchdog timer, and then set the WWDG_CR_T bit to set the timeout period.
• What is the purpose of the VCAP pin?
  The VCAP pin is used to connect an external capacitor to the internal voltage regulator. This capacitor helps to filter the output voltage and reduce noise.
• How do I use the ADC in scan mode?
  To use the ADC in scan mode, you need to set the ADC_CSR register to select the channels you want to scan, and then set the ADC_CSR_SCAN bit to enable scan mode. You can then read the converted values from the ADC_DR register.
• What is the maximum current that can be sourced by the GPIO pins?
  The maximum current that can be sourced by the GPIO pins is 20 mA per pin, but the total current sourced by all GPIO pins should not exceed 100 mA.