Interface and connectivity ICs

Ask questions and find answers on connectivity ICs, focusing on protocols and I2C challenges on STM32 Nucleo boards and BlueNRG products.

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Forum Posts

Chip ID

Posted on March 22, 2018 at 05:25I have an interface product have some chips carry ST logo, but I can not find anything use the Chip ID. They are EZ026 and EZ030. Can anyone help to identify what is these chips? Here is the picture shows the chip.Th...

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Resolved! STKNX Linear regulator dropout

Hi,I would like the DC/DC converter of STKNX to make 5V.Also, I want the Linear regulator to make 3.3VBecause of global efficiency, I wanted to power the linear regulator with the 5V output of DC/DC converter.I'm surprised that the datasheet specifie...

Unable to understand the value from STPM34

I am using this code to read the RMS Voltage and Current. I am also able to get output which I have attached as a .txt file. The expected voltage from the hardware which I am using STPM34 is up to range of 20 V. I am unable to understand where I am g...

vivek_7 by Associate II
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potting BLUENRG-M2SP and BLUENRG-M2SA

Hello,I hope you are well.I am using your bluetooth modules with chip antenna “BLUENRG-M2SA” and PCB antenna “BLUENRG-M2SP”.I'm going to put the 2 modules in the potting ? is there an influence of potting on the characteristics (range, transmission, ...

ljm by Associate III
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X-NUCLEO-BNRG2A1 UART Bootloader Mode

Hello, Following AN4872  & UM2667 I did the following: - Connected J15(Force DIO7 High).- UART-Connection is like(Beside GND and Vdd):    Nucleo-Board(F401RE)   <----------------------->  X-NUCLEO-BNRG2A1       PA9(UART1_Tx)           <--------------...

AElgh_0-1736432060174.png AElgh_1-1736432143666.png AElgh_3-1736432241818.png
AElgh by Associate III
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STPM34 UART communication with ESP32

I have developed code in arduino IDE , I am only getting the output receive from UART 04000A075 . I understand that this is the default value in register DSP_CR1. Could someone please tell me what does this mean.I hereby provide the code for receivin...

vivek_7 by Associate II
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  • 10 replies
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Resolved! M48T18-150PC1 Timekeeper

I have a circuit card that uses the M48T18-150PC1 Timekeeper SRAM, and the battery died. I replaced the part but the settings did not save once power was cycled. A second part was used with the same result. Looking at the date stamp, (412) tells me I...

BobW777 by Associate
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  • 2 replies
  • 1 kudos

Layer Stackup for BALF-WL-00D3

 My team is trying to design a radio board with the STM32WL and we plan to use the BALF-WL-00D3 in the RF Front End.Based on our requirements, we have decided to go with a 6-layer board and are trying to decide on a stackup (dimensions) for the same....

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