I am using this MCU on a battery-supplied custom board: STM32G0B1RET.
I am looking for clarification re. the GPIO availability in Standby Mode.
Table 26 in Reference Manual RM0444 (see below) seems to offer one of two (exclusive) possibilities:
- Without wakeup capability: wakeup pins are not available, but I/Os can be configured with internal pull-up, pull-down or floating. That would mean a GPIO pin can be assign 0 in Standby Mode.
- With wakeup capability: wakeup pins are available, but GPIOs cannot be configured and are floating.
Please confirm. Thank you!
@TDK, just for clarification re. the STM32G0B1RET on a battery-supplied custom board: the datasheet states that the pull-down resistor is weak, Table 55 lists around 40kOhm (see below). Can that cause a problem in Standby mode?
Also, one member states that in Standby Mode only RTC pins can drive low.
Please advise, I look forward to resolving this.
