Interface and connectivity ICs

This question refers to the STUSB4500 reference schematic on page 26 (fig 10) of the datasheet. Will this design prevent current flowing from a secondary power source on Vsnk back to the USB connector if the secondary source's voltage is slightly higher?

In the case where USB power is first applied and a 20V contract established, the STUSB4500 would enable the power path to Vsnk as per usual. Then assume a 20.9V (for example) secondary power source is applied to the Vsnk output (say from a wall adapt...

ON/OFF external TCXO in sniff mode

Hello,I'm working on extrem low power radio with S2-LP transceiver. To obtain a very low consumption in rx mode i puted it in sniff mode. My design has external TCXO reference and when i left it always on all work fine, but if i set gpio to switch of...

Bug in Spirit1 and Spirit2 (S2-LP) firmware library regarding Channel Spacing

In Spirit1:SpiritRadioGetChannel() is flawed:uint32_t SpiritRadioGetChannelSpace(void) { uint8_t channelSpaceFactor; /* Reads the CHSPACE register, calculate the channel space and return it */ g_xStatus = SpiritSpiReadRegisters(CHSPACE_BASE,...

Clarification of GATT Write Procedures

I'm a bit confused regarding some nuances of the BlueNRG-2's BLE characteristic value write procedures' functions & events. Below is my understanding with a few questions.Bluetooth Core Specification v5.2 | Vol 3, Part G; 4 GATT Feature Requirements ...

BlueNRG getting user data from beacon advertisements

I'm using a spbtle-rf to scan for BLE beacons. I get the LocalName of the device scanned and its hardware 'MAC' address using either aci_gap_start_limited_discovery_proc() or aci_gap_start_general_discovery_proc() but I can't find a way of reading th...

BlueNRG discovering manufacturer data from beacons

I'm using a spbtle-rf to scan for BLE beacons. I get the LocalName of the device scanned and its hardware 'MAC' address using either aci_gap_start_limited_discovery_proc() or aci_gap_start_general_discovery_proc() but I can't find a way of reading th...

(Mouser S/O 520896) Received marking of ST25DV64K-IER6T3 is V6EUB instead of V6EUA on website. Is there PCN for the marking change? Thanks.

What is the L9616 connection diagram?

Can I connect L9616 to the MCU directly or do I need some components like resistors, capacitors?

cp210x communication with STM32f4

Hi,Kindly advice how to communicate with an external device has CP210x with stm32f4 via USB FS mode. Is there any driver? In my project i want to read an external sensor data via USB. That sensor transmitting the data via CP210x chip . Please advice....

PC/stm32 USB communication cable

Hi everyone, i am trying to establish a USB communication between my nucleo-L073RZ and my PC. I have stripped a USB cable to connect it to the usb pins of the board (PA12 & PA11) and it worked well but i wanted to buy a cable (not homemade) to do it....