Interface and connectivity ICs

If ST's RTC chip (m41st84w or M41ST85W) has a failure mode to provide invalid RTC data, just like 2022(Year)-18(Month)-49(Date)? If have, what's the failure rate?

BLUENRG devices firmware upgrade setup

Please help me with the setup required to flash the latest firmware version for the BlueNRG devices. I would request your help to explain me the setup required for both the usecases exlained below -There are some devices we have in stock and they nee...

STPM32 giving the value of 0x00 Reg on every request.

Protocol Used : SPISPI Master : ESP32SPI Slave : STPM32 I am trying to interface with STPM32 using SPI interface.Whenever I make any read request I am getting the value of 0x00 register again and again which is 0x040000A0.As per the datasheet the int...

ST4SIM-200M cannot register ICCID at Truphone.

Hello,we purchased two ST4SIM-200M eSIMs for testing but we have trouble activating them. In the truphone portal when I enter their ICCIDs, I always receive "This ICCID has already been activated". They should not be activated, they are brand new not...

SPIRIT-1 not always able to receive

Dear ST Community,I have the following test setup:- 1x SPIRIT-1 transmitter (reads a pin from a STM32 MCU and modulates it over the radio)- 2x SPIRIT-1 receivers (receive the pin state and pass it to the MCU)Expectation: Both receivers should receive...

Hello, Does anyone know of available stock or alternatives for VN808cm-e, octal source driver. We are having great difficulty finding any stock for our main control board which uses two of these drivers.

How does UART work without the HAL layer ? Does the shift register clear itself once it has transmitted its data ? And what's the timing I need to have ?

Some context, I'm using a RS485 data line in half-duplex mode to communicate between an STM32F107 (the master card here) and an STM32F072 (the slave card). My end goal is to be able to use the bootloader on the slave card and reprogram it from the ma...