STM32 MCUs Products

Hello, I am using STM32f407IGT6 with Keil uvision and HAL library. When I try to connect the device with ST-Link and flash the software using the JTAG interface, I always see "can't reset the core" as the error.BOOT0 - Connected to GNDBOOT1 - Connected to VCCCan someone please help here?

Hello guys. I'm fairly new to stm and i've mostly worked on a pico.The thing is that i want to create a programm with the following function.The user sends a character and then a string from a python app on my pc. The first character is a pseudo handshake, meaning that if the received character is lets say 'A', the stm should store the string on a buffer array and print it. I've implemented this program by using the get_char function on the pico. Can i implement this on an stm by using something similar or do i have to use multiple instances of the HAL_UART_RECEIVE_IT  function , since i also want the super loop to also implement an adc reading, and the  HAL_UART_RECEIVE is blocking ?

Hi, I want to make I2C By GPIO I/O Ports Using STM32F103RBT6 64 Pins.run my source code result is above figure.When I2C Input Read time, It Can’t read data how can I get input data?    Start_Setup_Time(); // b7 ~ b1 Addr + bo_wr + ack Setup_Addr(0xA0); // ucReg Addr uint32_t regi_addr = 0x16; Setup_Regi_Addr(regi_addr); // Start SDA_Up(); SCL_Up(); TIMER_us(50); Start_Setup_Time(); // b7 ~ b1 Addr + bo_wr + ack Setup_Addr(0xA1); uint32_t temp = 0; IO_Change(0); TIMER_us(50); for(uint32_t idx = 0; idx<8; idx++) {

I found a very serious problem while using BOR, which caused my program to be erased innocently.At least 0x0800 0000-0x081f ffff is like this,This is the result obtained by jlinkI need to use the BOR function when I power on, originally this function is to prevent me from abnormal power failure during the power onThe result is that an abnormal power failure of the program during the configuration of BOR will cause all the contents of my internal flash to be erasedThis feature did solve another problem I had, but this new one is much more serious.This is the conclusion that our team has come to after many tests, and we suspect that this will be the case when configuring other option words.I hope you will respond to this matterthanks The following is my BOR configuration:if((FLASH->OPTCR & FLASH_OPTCR_OPTLOCK) != RESET){/* Authorizes the Option Byte register programming */FLASH->OPTKE

Posted on October 28, 2017 at 21:00 Custom board based on STM32F429ZI with Microchip USB3300-EZK HS PHY. The clocks and USB connections modeled on the STM32429I-EVAL1 schematic. I've verified that the CubeMX-generated code for my board looks just like what is generated for the EVAL1. The EVAL1 code works. At least, up through USB_CoreReset(). At startup, the code calls USB_CoreInit() which calls USB_CoreReset(), both instm32f4xx_ll_usb.c. From USB_CoreReset(): /* Core Soft Reset */ count = 0U; USBx->GRSTCTL |= USB_OTG_GRSTCTL_CSRST; do { if (++count > 200000U) { return HAL_TIMEOUT; // <<<--- THIS LINE ALWAYS HIT } } while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_CSRST) == USB_OTG_GRSTCTL_CSRST); return HAL_OK; �?�?�?�?�?�?�?�?�?�?�?�?�? Does completion of that reset depend on the 60MHz PHY clock from the USB3300 (USB_OTG_HS_ULPI_CK input to STM32F429) being active? Any

Hello, i ordered a STM32F429ZGT6.Now i try to identify the revision of the chip i got.The marking on the package seems to have changed - there is no ARM Logo anymore.And where the revison was printed in the past there is now a QR-Code.Is 340 the date code? That would mean probably 2023 week 40. 

Hello, I am using a STM32F334 for a project where I am reading several analog channels, specifically connected to thermistors. I am using DMA to read the analog channels and also sending this data out on UART via DMA.  I am seeing some weird jumps in the data, which also correspond with longer than normal intervals between sending UART data. It seems like only analog data is doing this and I'm wondering why. Does it maybe have something to do with DMA? I have different priorities set for the DMA streams in the STM32Cube project configuration.  I am sampling the internal temp sensor channel, Vref, and Vbat channels, if that is useful. I have the longest sampling interval set as well.  Any help or tips appreciated.   

Hi,I have an STM32H747IGT6 that I wish to:Continuously sample 4096 ADC samplesTransfer each sample from the peripheral to memory using DMATrigger an interrupt at the end of the conversionsAfter the CPU operates on the stored data, restart the process at item (1)The process works fine through (3) with the ADC configured as LL_ADC_REG_DMA_TRANSFER_LIMITED and the DMA configured with LL_DMA_MODE_NORMAL. However, I can't figure out how to restart the DMA / ADC. Can anyone offer guidance on how to restart a one shot DMA transfer to memory from an ADC?The ADC conversions are triggered from a timer. Thanks!

 I work with a 64 bit linux and a stm32f411ceu microcontroller.Unfortunately there is no detection under linux from the uart port. Are there experiences or sources? 

I was unable to configure ADC1 to measure a "4 channel sequence" and then generate an interrupt.I am using the injected result registers to read the values in the ISR.Adc_Value[0]= ADC1->JDR1;Adc_Value[1]= ADC1->JDR2;Adc_Value[2]= ADC1->JDR3;Adc_Value[3]= ADC1->JDR4;All values show zero! Can anyone provide an example code for reading injected results + interrupt?Alternatively the DMA may be used, but when I try to use regular/non injected results via DMA, I am not able to generate an interrupt anymore! The sequence is triggered by TIM1 at every 15.8 uS.

Hello,I would like to know whether I understood the application note about the Vcap pins correctly. If there are 3 Vcap pins on the package, then 2 capacitors should be placed and one has to be connected to another. I'm not sure about this connection.

Hello guys,In some of the products we developed with STM32F429, we received the write-protected error I mentioned in the image. I know how to turn off write protection, but I can't figure out how it activates independently. However, there are also malfunctions in other parts of the products on which I receive this error.Footnotes:ROP Level 0, BOR Level OFF in option bytesThere is a powerful capacitor in the input power; it takes about 50ms to discharge (I'm not sure if it's helpful information.)  

Heyho,first of all, I know this is a Microchip product, but their forum is rather dead.And I have seen some people here using the KSZ8863RLL. So please bear with me... I'm currently working on a big and complex PCB including the "dual PHY" KSZ8863RLL.In the current datasheet I just found in table 4-1 the info, that MIIM register 0x1D with Link (test) / status info is not supported on PHY1, but only PHY2.Is that a typo? In the following register description table 4-2 the register is listed for PHY1.Here's a screenshot of table 4-1:

On a STM32H745ZI-Q - Board I want to create periodical 4-byte SPI transfers  triggered by a timer. So far I got this working the following way:TIM triggers DMADMA initiates the SPI transfer.However, the SPI transfer timing (CS low) has a high jitter of 100 ns, which is not acceptable.To reduce the jitter: Is there any known way to trigger the SPI transfer start directly by a timer on this specific MCU (from reading the RM, I don't think so)? The data to be transfered could be written to the SPI FIFO in advance by an ISR triggered with a proper delay. 

HI all, I am building a system to control my battery charger.When I power up the system from the DC power supply it work perfectly.But when I power up this with AC power supply it gives below error. What can be the possible error?

 Are there experiences regarding the record of a signal in look to the 64-bit platform linux?Do I need a 32 bit-emulator or something like this?

Hello Everyone!I'm facing a problem with all the examples on this package FP-AI-Vision and my LCD only displays noises. I have the board STM32H747I-Disco model MB1248-H747I-D03 and the display MB1166-A09. I realized that in this package doesn't has the drive NT35510 and this is important for my display to work, because of that I had changed the files STM32Cube\Repository\FP-AI-VISION1_V3.1.0\Drivers\BSP\STM32H747I-Discovery and STM32Cube\Repository\FP-AI-VISION1_V3.1.0\Drivers\BSP\Components to include all packages inside STM32Cube_FW_H7_V1.11.1. Also, I had modified  the file stm32h747i_discovery_conf_template.h to include USE_LCD_CTRL_NT35510 1U and add the correct include path on the project. I had try to debug my code and it seems that the code is runing in this method:

Hello, I've written a software to use the FDCAN (classic frame 500kbit/s - PB8/PB9 pins) on  Nucleo-H7ZI43 (FW_H7 V1.7.0 and stlink V3J13M4 FW)All works fine, I'm able to transmit and to receive message with different ID and DLC by mean Innomaker CAN-USB and MCP2562FD transceiver. If I use the same code on my  PCB and the same microcontroller, FDCAN is not initialized, no messages are transmitted or received.The electrical configuration how you can see on the schematic attached is the same of Nucleo-H7ZI43, in this case I'm using an external stlink-v3 debugger with V3J13M4B5S1 FW. I've checked several times the connections and electrical network, all it's correct from my point of view.To help the analisys I'm attaching also the clock.jpeg and can.c file.Please can you support me? RegardsChris   

Hi folks, i have an STM32F407 discovery board. when i measure the voltage across the gpio pins it becomes write protected. after i dumped many codes but no use. i had attached the screenshot with the error code that it's display. i tried to put jumper between the boot 0 and 5v results no use. i refer so many solution and tried it but no use. so what i do now? @Community member​ @Imen

Hi,I got the VCNL4040 Proximity sensor breakout board. I tried this board with Arduino Uno example solution and works very well.Now, I am trying to read this sensor with an STM32L0 series MCU. I see I am able to write to the sensor by turning ON and OFF the sensor, but I can not read the same or any other registers. The I2C HAL function returns HAL_OK but the value is always 0. Even I checked the signal and tracked all the 0 and 1 bits, they seem to be good based on the datasheet of the sensor.Attached is the Read & Write protocol of the sensor.And below is my code to read a register, for example the ID of the sensor (addr = 0x0C) or measurement data (addr = 0x08). The device address is 0x60. I2C_TX[0] = 0x08; // PS_Data if (HAL_I2C_Master_Transmit(&hi2c2,0xC0,I2C_TX, 1,2000) != HAL_OK) Error_Handler(); if (HAL_I2C_Master_Receive(&hi2c2,0xC0,I2C_RX, 2,2000) != HAL_OK) Error_Ha

I am trying to integrate VCNL4040 with stm32, but having issues in that, is there any library available for integrating the same.

Hi,When attempting to connect to an STM32F030C8T6 MCU, ST-LINK Utility gives the following error message:"Can not connect to target!If you're trying to connect to an STM32W1xx device, please select Normal or HotPlug mode from Target->Settings menu.If you're trying to connect to a low frequency application , please select a lower SWD Frequency mode from Target->Settings menu.Can't reset the core" I have it connected via SWD. Pin 19 of ST-LINK/V2 is connected to the VDD of the MCU. Pin 1 is connected to VDD of the MCU. GND of MCU is connected to pin 20 of ST-LINK.How can I fix this error? I've had the same setup before and that has worked. This is the first time I'm getting this error. I've tried rebooting my PC & ST-LINK. I can't erase the chip because the ST-LINK Utility can't connect to it.  

Hii everyone,I am facing the problem for the data logging in flash.i am not able to keep track of the variable till where the flash memory is filled is there any way to sort out this problem. i am not able to erase the single word to update the address at particular location after writing to the flash instead whole sector is getting erased.

I developed a user device with a STM32G030 in it. Now I want to go to the market. But before that, I want to have a USB port on my board with which users can update their firmware in case my software has bugs. In the STM32G0x0 datasheet (RM0454) in chapter 28 there's a lot of USB talk going on. But I can find nowhere on the internet (ST or other) a simple description like put PA11 to D-, put PA12 to D+, put GND to GND. Put some HAL functions in your code and you'll have like a virtual com port. Now write some python code or whatever. In my world (guitar effect pedals) everyone has a USB firmware upgrade arrangement. Can someone please help me to get my users to put a USB cable in my device and their PC en and then see a waving hand, a smile and a 'finished' message? Help!

Hello//   nucleu-h745zi-qI want to use hardware flow control rs485Previously, i used an external module because there was only rs232 (f103).** question ** . With this feature, can the module be removed and the microcontroller directly connected to A B receiver?