Interface and connectivity ICs

Comrades, tell me, what is this element on the board?The board stopped working after a power surge, how to fix it? How to replace these elements?The inscriptions are!ST EEVC518andST EEVC612

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I am using BLE_Throughtput_Ext program from Bluenrgsdk version 3.1.0.I have also configured Tx power levels from -14dbm to 8dbm and the results are same(I can see very small variation in my distance of around 2m) as the distance increases my data rate gradually reduces from 350kbps and If it goes beyond 3m it gets disconnected.I have a doubt if we can configure physical layer to LE coded or LE 2M so I can increase my throughtput rate and also the distance. Any suggestions please !!!

I;m working on bluenrg-2.The system undergo sleep after 3 minutes if no device connected I have to read the ADC value from DMA.Once the system undergo sleep ,the wake up switch will wake up the board.But after wake up the DMA not working. if(DMA_GetFlagStatus(DMA_FLAG_TC2)) failed this condition.Can anyone help me on this issue?thanks in advancerose

The attachment is the schematic diagram of the STEVAL-ISC005V1 evaluation board.

I am using BLUENRG-1 (QFN package, 32 pin) in my design. I got the schematic of BLUENRG-1 for my design but I am not able to get the value mentioned in the schematic. If anyone has BOM for the schematic please share with me.Please check the attached document for your reference.

Hello, I have been trying to interface a HTS221 3 wire spi sensor with my STM32 Master.I need to use my master as bidirectional because I'm already communicating with another sensor.I have found a solution which was shorting miso and mosi together with a 1k resistor. Doing this i could interface with bidirectional master but as I have the miso and mosi shorted I am always reading what i send for example: I want to read what is inside register 0x0f so i send 0x0f to the slave and i read 0x0f, afterwards i send a dummy byte and i read the dummy byte instead of what was inside the register 0x0f. I have heard about bit banging but I have no idea how to implement it in a easy way as im a newbie in SPI.Thank you for your time!

Hello! I recently started working with STM32 microcontrollers and I'm trying to work with a MS5611 sensor with I2C but when I use HAL_I2C_IsDeviceReady function to detect the different devices I have on the I2C it detects nothing. I have check the board and sensor schematics and all connections seem to be right. I also tried changing my sensors and removing all except one but I still can't detect even one sensor.Do you have any idea what's causing this and how I can solve it?Thanks in advance! :D

Hello,I'm working on a driver for a proprietary device that should interface with an STPM32 power meter via UART. I'm at the point of writing some routine to access STPM32 registers without the need of manually compose the UART frames.However, I keep receiving garbage when I read register. I try to describe it below, but to make the long story short, the problem is that only the dummy read command properly works, when I try to read registers at specific position it mess up (I receive bad frames).So, this is the test procedure:After the initialization of GPIO and UART, I generate the pulses to properly reset the STPM32, then I do a trasfer to get the register at row 0 (address 0), moreover since I use the dummy read command on the next trasfer I'll get the register at row 1 (address 2)MCU TX->STPM RX: (0x) FF FF FF FF 7B MCU RX<-STPM TX: (0x) A0 00 00 04 75then I receive the correct value with the correct CRC.By doing another transfer I obtain the register at row 1 (address 2)MCU

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I want to send the adc data through bluetooth to a Mobile app.I combined both adc polling and bluenrg chat example.I got the correct data with adc polling example but when I integrate this code with chat example the adc collecting wrong data.can anyone help me on this?

Hi All,i am using STPM34 for metering application to measuring the Energy used in the EV charging station.As per the development board design provided by the ST to measure the AC voltage , the Neutral lone is connected directly to the comment GND for STPM34 ic.  Refer the below images-1 of the same schematic.To avoid the direct connection the Neutral line to the IC GND ,i am planning to use a series resistor in the neutral line to the ICs GND . Please conform it make any measuring errors in the values. Refer below image-2.Image-1Image-2

Hello everyone. I was wondering whether it is possible to set up IO-Link communication with the L6362 transceiver and not work in push-pull mode but in high-side-output stage or low-side-output stage mode? According to the data sheet, HS and LS can also be used when OUTH and OUTL are connected, but it does not state whether IOLink can still be used. Does anyone know if it's possible to use IOLink in HS or LS mode?Datasheet L6362: https://www.st.com/resource/en/datasheet/l6362a.pdf

I have ST EVAL -IDB008V1M board , i trying to load DTM Uart image (it Acts like a Network Mode) using st link utility and I geeting Error , i uploading Error image , the mode of programing will Be SWD , kindly help me out to the DTM image on the Board.

Hi,We have the STUSB1602  implemented, can read the registers and they appears to be giving correct information but the Read/Clear _ALERT registers are not clearing when they are read.If the _ALERT_MASK registers are configured to use the Alert# pin this stays in the alert state as well as the registers.Does anything need to be done to make the registers clear when read?Gabriel

BlueTile can use ADC port? if we connect the signal to ADC port, Can we display on ST ble APP ? 

I am working on a project to create a star network between a router to a number of sensors over 6lowpan using Contiki. Router will pass the messages to border router. Router and border router is connected to main power, while sensor is battery powered.

I am outputting audio over I2S at 8k with a 128 sample buffer. I was getting timing issues so I turn on an LED on the Half way callback and turn it off on the complete callback. I expect a 50% duty cycle. But I get the output below on my scope. Anyone else see this or know what can cause it? The overall time is about right for a 256 sample buffer at 8k but the timing is wrong  

I am currently working on a P-NUCLEO_USB002 board to develop a PD solution. It seems the serial debug output is playing up. I set the USB_CLI already but it just give me some garbage data. I double checked the baudrate and it seems ok. Is anyone has any experience on this dev board who can help me with this? 

I am trying to load the DTM UART HEX file Using St link utility, its Showing Programing Error @0x40001245, how we can load the Image

I am using the BLUENRG-M2SP ble chip set , i created the 2 services ,there services are Primary Services 1. first service has the 3 characteristics and Second services has the 5 characteristics , if i add third services , i am getting Lack of Memory Error , Kindly help me out how much memory utilized each characteristics. and service ,

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I want to understand more about registers and RF activities.

I am a student who is currently doing his bachelor thesis. My job is to control two microcontrollers (Nucleo-STM32F411RE) via Bluetooth (X-Nucleo-BNRG2A1) in order to transfer parameter values ​​for a system. The idea was to connect the microcontrollers one after the other via Bluetooth and transfer the values ​​of the parameters. The connection and the transfer of the values ​​works very well. Unfortunately, I am unable to connect a microcontroller a second time. When I terminate a connection, the device no longer appears in the scanner list or a reconnection hangs. I took the measures to be observed when closing a connection (gatt diconnect, gatt close in the callback, etc.). If I press the black reset button and restart the program, the device can be found in the scanner list immediately. Does anyone have experience with it? There are a lot of posts on this topic. So my question is: Can something be installed on the microcontroller side that will return to the advertising state in t