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MAmiri
Associate II
since ‎2020-07-15
‎2023-06-14

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Do wakeup pins PA0, PC13 and PB3 on STM32WL55 require external pull-up?

2021-01-28
I cannot find the external requirement for wakeup pins PA0, PC13 and PB3 on STM32WL55.Do they need a pullup (e.g. 10K) to keep the output state once the MCU goes into one of the sleep modes?Thanks

STM32WL reference design(s)

2021-01-26
Question 1) ST has recently removed the deign of MB1389 (NUCLEO-WL55JC1) form the website. Were there any known issues (perhaps recently found) with the MB1389 design? Question 2) I have found the design of MB1720 in this forum but nowhere in ST web...

Can someone kindly explain what are SPI_CS1 (e.g. DIO1), SPI_CS2 (e.g. DIO18), and SPI_CS3 (e.g. DIO19) on BlueNRG-2?

2020-07-15
As far as I have understood, CS2 can be used for BlueNRG-2 acting as master and the another chip in salve mode, I can also see CS1 pin is also used for JTAG operation, does this mean CS1 can place BlueNRG-2 in slave mode for SPI communications? What ...
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