WATCH ON-DEMAND | STM32 Summit 2026
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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Pin connection:ST link ------ BLUENRG232SWDIO SWDIO SWCLK SWCLK GND GND3.3V VCCI have also made IO7 high with 10K resister To GND.Pls. help me out.
I want to start with bluenrg2 mesh development on stm cube ide, on linux platform.I was unable to intsall the bluenrg2 sdk on linux.Is there any tool chain/sdk for STEVAL-IDB008V2 on linux.
Hi,We would like to use USB Type C PD chip for Data role or Power role swap functionality.We are designing the android accessory using type c connector.We would like to keep our accessory in Device mode and also want to do the charging of smartphone through type c connector.Can you please suggest the chip which is required minimum firmware application and we can put the accessory in device mode with source power to smartphone ?
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I want to access the eeprom information and later to store some information for my project. Information such as ip address, mac address, node id etc. X-NUCLEO-S2915A1 board is connected to Nucleo-L152RE board for my project. Hope someone can share their knowledge on this.
If the STUSB4700 hasn't established a connection with a USB PD sink, can the GPIO pins controlling the feedback resistors still be toggled to provide a desired feedback resistance for a desired regulator output voltage? Is this possible through I2C, or some other method, and if so, how would this be done?I want the regulator accepting the feedback resistance from the STUSB4700 to output 9V or 12V when there is no connection to a sink. Is this possible through I2C, or some other method, and if so, how would this be done? The pass transistor connected to the STUSB4700's VBUS_EN_SRC (pin 20) would be forced on as well.
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
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?
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