Interface and connectivity ICs

We are developing a circuit with the STuW81300. Our doubt is: to write a register, do you have to send 32 bits directly? or can you send 4 bytes, one by one? Thank you.

Error: hci_le_set_scan_response_data [ff] in STM32CubeFunctionPack (en-fp-sns-motionenv1)

Hello, I am using F401RE Nucleo + X-NUCLEO-BNRG2A1 + IKS01A2 and FunctionPack 4.2.1 .After dragging the _BL_v4.2.0 bin to the nucleo on resetting the board i am getting this : Error: hci_le_set_scan_response_data [ff]while on another board it is givi...

BlueNRG-2 sleep issues while working with the full "BLE_SensorDemo" Example Project

I am currently trying to understand why my "BlueNRG_Sleep" function doesn't work, from the main function where custom code should be, either while debugging or while using the battery with my BCN002 tile board. I use LEDs on before and after the sle...

How to make a MAC address list file for RF-flasher Utility?

RF-flasher Utility say it can program the MAC addresses to device by list file.I try to make a text file of MAC address sample list. (attached file) And set it for MAC addresses. But RF-flasher Utility occers error. (Set MAC Address)How to write and ...

S2-LP to BALF-SPI2-01D3 connection 1mm Thickness 2 layer PCB.

The trace thickness and gap in the datasheet for connection from S2-LP to BALF-SPI2-01D3 are given according to a special 4 layer stackup. What should this trace thickness and gap be on this connection 1mm thick 2-layer PCB? Dielectric constant = 4.3...

Cannot calibrate antenna on ST25R3911B

I'm trying to issue the CALIBRATE_ANTENNA (0xd8) command on my st25r3911b nucleo expansion board, but it seems to hang.Other commands (eg. MEASURE_CAPACITANCE and CALIBRATECAPACTIVE_SENSOR) work just fine and generate interrupts, but issuing CALIBRAT...

SPSGRF-868 alternative

Hi, We recently saw that SPSGRF-868 (https://www.st.com/en/wireless-connectivity/spsgrf.html) has become Not Recommended for New Designs (NRND), which seems concerning as we use it in many IoT designs.Is there any ST module available, with ACTIVE sta...

What type of transients and erroneous signals can I expect at power-up and power-down if I do not follow the sequence described in the datasheet for 54AC164245?

What type of transients and erroneous signals can I expect at power-up and power-down if I do not follow the sequence described in the datasheet for 54AC164245? Can you characterize the duration and amplitudes when VDD1 = 5V and VDD2 = 3.3V. In this...

STEVAL-IDB008V1M (BlueNRG-2 SoC) does not establish VCP port on PC, only STM DFU

Since the poorly soldered microUSB connector on the eval board broke off, I fixed and wired USB-A connector. If the board is then connected to PC, STM DFU device appears in Device Manager and appropriate driver could be installed so I suppose that th...