STM32 MCUs Products

Hi,I just got a Nucleo 64 with an STM32F466 and want to start developing some own softwareinitialise the MCU for with the maximum clock possibleread 96 kHz stereo SPDIF frames from one of the inputs (polling would be fine)analyse the received data (just some very simple and fast math)What I'm looking for are ideas for the first two points to start with. Any idea where I can find some sample codes/example implementations/beginners tutorials?Here "beginner" means noob in terms of STM32 but not in terms of embedded software developments.Thanks!

I've tried both Zephyr RTOS and an STM32CubeIDE HAL project, and cannot get the FDCAN interface to work.After performing requisite initialization steps, I add a packet to the TX FIFO. No error is returned, but no packet is transmitted. I can repeat this two more times, but on the fourth attempt, I will get an error because the TX FIFO is full.I have attached a logic analyzer to the TX pin (PA12), and I do not see any output (the line remains in the same state). On Zephyr, I've instrumented the driver on Zephyr, and verified that no CAN interrupts are happening.  UART is working (I get debug output).Since that wasn't working, I used the STM32CubeIDE to create a new project and "borrowed" some CAN transmit code from another ST sample, and I see the same behavior -- the code enqueues a CAN message to the TX FIFO, waits a second, and repeats. On the fourth attempt, we get an error that the TX FIFO is full. I'm happy to provide this code if it helps. I've tried multiple U545 boards as

Hi,some flash operation depends on the MCU supply voltage (see picture).I would like to program an STM32F401 with openOCD, where the MCU is supplied with 2.5V.Is the possible?If yes, - Can I use the stm32f4x.cfg or are there modifications needed?- Should I use the ST version of openOCD? https://github.com/STMicroelectronics/OpenOCD-Thomas

Hi , I am trying to build a simple program for blinking leds in Simulink using STM32 NUCLEO F746ZG. When I push on "Build", Simulink gives me this error. Does anyone know how to fix it? Thank you in advance

Hello there!I have a custom board to control a motor, which I have tested so far using SWD, but now I need it to use the USB DFU to upload new code. As far as I get it, to make the DFU work, I have to put some code in the microcontroller. Following some online tutorials, where I use STM32CubeProgrammer to upload a .bin file, which I did successfully, when I unplug it and put Boot0 to high, Windows gives a warning of "USB device not recognized", and in device manager, "Device Descriptor Request Failed". I have assigned the driver manually to "STM Device in DFU Mode", but there has been no change. (I tried this process with a blue pill, and it worked :\ )I have also tried to use STM32CubeIDE to install the DFU mode with a simple blink, where in Middleware and Software Packs - USB Device - Class for FS IP, I put in Download Firmware Update Class (DFU), but I am not certain if this is enough, or if I should put something else in the code.I didn't find much information about how to mak

Hello.Recently I received an B-WL5M-SUBG1 board and started to develop a LoRa applicationbased on the LoRaWAN_End_Node example that I got from STM32Cube_FW_WL_V1.3.0 archive.I managed to get the example running and sending LoRa packets.My objective now is to integrate the on-board ISM330DHCX accelerometer to the application.For that, I've created a file with the functions AccelApp_Init() AccelApp_Run(), platform_write() and platform_read().In the same file I also declared two other functions "OnAccelData" and "ProcessAccelData"I followed this file as an example on how to integrate the ISM330DHCX: ism330dhcx_STdC/examples/ism330dhcx_read_data_polling.c I'm able to retrieve the ISM330DHCX ID by reading the WHO_AM_I register of the device, and to set-up other registers by calling the ISM330 driver functions from AccelApp_Init().To create a new task, I first changed "utilities_def.h" and created "CFG_SEQ_Task_ProcessAccelData" Id."OnAccelData" is a callback for a UTIL_TIMER, that

I am reaching out regarding a query about the STM32F407G-DISC1 target. Upon reviewing the datasheet, I noted that it indicates the target does not support reading while writing. However, upon personal experimentation, I found that it functions correctly in this regard.Could you kindly provide clarification on this matter? I am curious to understand why my observations differ from the information provided in the datasheet.Thank you for your attention to this matter. I look forward to your response.

Hello,I'm having problems with the adc conversions on my STM32G491.There is an error of 23-26% higher than measured with scope or multimeter.I'm using ADC1 & 2 in dual mode with DMA, I have an input signal coming from an opamp voltage follower.I'll attach the adc file, the signal I used to compare ADC1 & 2 results is DETECT_PAM.Kind regards,Yves

I have made a prototype, and it runs as just after upload. But when i just turn on the power, it wont. It does not matter if the st-linkv3 ist connected or not. When i reset it, via the NRST pin, it also wont run.I already used the HSE and HSI, and checked on a nucleo, that my code is working (it does).I dont know how i further can investigate this. The level of NRST is clean and the level is good.

Hi,I'm developing a project based on the STM32U535VET, in which I have 12 touch buttons and a TFT display.Starting condition:I'm in a situation in which I'm reading the TSC channels and I'm having some "analog" problems. If the Vdda isn't enabled, the TSC seems to work correctly and the TSC channel waveforms are what I expected, i.e. the quare wave charging the electrode capacitance Cx goes from 0 to Vdd=3.3V at the beginning of the channel charging time, thus the sampling capacitor Cs charges in a certain time (see image D000, in which the blue channel is the Cx voltage and the red one is the Cs voltage).Problem 1:As soon as the Vdda is enabled (using HAL_PWREx_EnableVddA()), all the TSC channel waveforms are modified in the same way: the square wave charging the electrode capacitance Cx goes from about 0.6V to Vdd=3.3V at the beginning of the channel charging time thus the sampling capacitor Cs charges in a longer time (image D001).Problem 2:In this condition with TSC and Vdda enable

I am currently using ADC for continuous conversion. Below is my program.#include "adc.h" void adc_init(ADC_TypeDef* adc){// ADC3 PC0 PC1 (IN10 IN11)RCC->AHB1ENR |= RCC_AHB1ENR_GPIOCEN;RCC->APB2ENR |= RCC_APB2ENR_ADC3EN;// analog modeGPIOC->MODER |= (3 << GPIO_MODER_MODE0_Pos);GPIOC->MODER |= (3 << GPIO_MODER_MODE1_Pos);// enable scan modeadc->CR1 = (0x1 << ADC_CR1_SCAN_Pos);// 12bit resolutionadc->CR1 |= (0x0 << ADC_CR1_RES_Pos);//Continuous Conversionadc->CR2 = (0x1 << ADC_CR2_CONT_Pos);//EOC after each conversionadc->CR2 |= (0x1 << ADC_CR2_EOCS_Pos);// Data Alignment RIGHTadc->CR2 &= ~(0x1 << ADC_CR2_ALIGN_Pos);// Enable DMA for ADCadc->CR2 |= (0x1 << ADC_CR2_DMA_Pos);// Enable Continuous Requestadc->CR2 |= (0x1 << ADC_CR2_DDS_Pos);// sampling timeadc->SMPR1 |= ((0x3 << ADC_SMPR1_SMP10_Pos) | (0x3 << ADC_SMPR1_SMP11_Pos));adc->SMPR1 |= (0x3 << ADC_SMPR1_SMP10_Pos);/

currently I'm implementing a sdio device in mbed-os for STM32F4. This is using the HAL and I had problems with setting the timeout for Read/Write Blocks.This line looks bad for me:https://github.com/ARMmbed/mbed-os/blob/920db63453b6aae7ccaa992fe7c9107f6664347f/targets/TARGET_STM/TARGET_STM32F4/device/stm32f4xx_hal_sd.c#L592The function is returning an error if timeout=0 is passed as argument. Reading or writing the blocks has no chance to succeed, if timeout is = it will fail. Usually, a timeout=0 means infinit waiting and the function should look like if ((timeout != 0) && (...)).Is this right?

I'm working with a commercial-grade food-service product that uses the STM32L073 in conjunction with an android tablet connected over UART or Bluetooth. For our next-gen product, we're investigating methods to economically implement firmware updates on a fleet of a few thousand units. The one major factor is that we have limited resources (one part-time firmware developer with no filesystem or bootloader experience, along with a part-time electrical engineer), so maximizing implementation speed is key. We have the following options we are exploring for firmware updates: 1. Currently the only method implemented to perform firmware updates is using a ST-Link Programmer. Our issues with this setup is that:requires the user open up the productrequires the user plug the ST link onto the pcb (electrically risky)Requires a laptopST-Link can be lostanyone can flash unofficial firmware2. Switch to an STM32WB:Seems to require either a laptop or phone with the propriety ST appanyone can flas

I would like to ask for TRADE COMPLIANCE - Product Classification Declaration for STM32F756IGT6. On Monday 18th, at 8 am we have audit. I know it is last minute but I would much appreciate your help.

Hello everyone, I am trying to communicate with lora e5 using usart1, when i send "AT\r\n" command and i try to receive data from the same uart(lora) the function while ((__HAL_UART_GET_FLAG(huart, Flag) ? SET : RESET) == Status) blocks the execution because RXNE after receiving goes automatically to 0. Best Regards,  

Hello guys, is there a SIP library for VOIP or an example of a project without using other third party libraries for VoIP? Thankyou in advance

Some 'L4 RMs suffered/suffer from this, too (lazy to look up).JW

Dear expertI am currently implementing the SMBUS communication with TI BQ40Z80 via STM32L431xxx + Middle ware.However, when observing the smbus waveform, N byte block write does not work properly and block read is also strange.Other register accesses of BQ40Z80 that operate with READ, BLOCK_WRITE cmnd_query operate normally.I would like help with the middle ware stack interface argument.-. cmnd_query , direction , piobuf = STACK_SMBUS_GetBuffer(..) implement. cmnd_code = command code;cmnd_query = BLK_PRC_CALL;cmnd_master_Tx_size = tx_length;cmnd_master_Rx_size = rx_length; call STACK_SMBUS_HostCommand(....) function with direction = READ; 

Hello, we're using STM32H753XI in our custom board wherein we've ADIN1200 LAN driver, W25Q flash on QUADSPI. we've configured the memory regions for Ethernet Rx, TX DMAs and pool memory like this       RW_DMARxDscrTab 0x30040000 0x60 { *(.RxDecripSection) } RW_DMATxDscrTab 0x30040060 0x140 { *(.TxDecripSection) } memory_RX_POOL_base 0x30040200 0x12676 { *(.Rx_PoolSection) }           we've assigned some memory from address location 0x30000000 for other purpose         RW___SRAM1_Buf 0x30000000 0x14000 { *(.SRAM1_Buf) } RW___SRAM1 0x30014000 0xC000 { *(.SRAM1_data) }         MPU Config is initialized like this,         /* MPU Configuration */ void MPU_Config(void) { MPU_Region_InitTypeDef MPU_InitStruct = {0}; /* Disables the MPU */ HAL_MPU_Disable(); /** Initializes and configures the Region and the memory to be protected */ MPU_InitStruct.E

Hello all .  I have been working for days to make nucleo f446re reads i2c eeprom .  The i2c eeprom am trying to read uses 0x78 address as the slave address .  I tried use the Nucleo-64 f446re with stm32 cube ide using IsDeviceReady in hal i2c . And i2c scanners from many different sources to try even to ensure that device is connected or not . With internal and external pullups but with no chance . I tried all hal i2c modes as interrupt mode or polling with no chance.  My i2c eeprom part number is tiob46b1.  And i did try to communicate with it using RPI 1 and it can easilly read it or detect it in i2c scanner.  Arduino can really really easy communicate with it . I have tons of this eeproms with many projects i did with uno or esp8266 . For resetting some toners chip uses this unchanging address .  After searching many and many days . I found that f446re source in atm32 ide . Use this address as reserved for 10 bit addressing mode . And also for the

Hi community,I have a display, which has only CLK, DI and CS pin for SPI communication. It uses TI protocol.The original driver is only working with raspberry pi, I try to import it into my custom STM32 MCU board, the CLK and CS signals seem okay,  Only the MOSI signal is always low. it seems no data is really sent to the display. here is the signal capture from logic analyzer. The whole write sequence: zoom in, single byte write:what could be the reason? Thanks in advance.  

Sorry, my first time programming an STM32.  I have a bunch of data I need to store for a few hours, and the thought was to store it in Flash since there's a lot more of it (512k vs. 128k for regular RAM) but it looks to be pretty daunting. I've been reading a bunch of articles online, and they all seem to contradict each other, and they all say things like "all you do is write to the memory location, just like regular RAM" and then in the fine print it lists the 43 things you have to do first, - turn off IRQs, update control registers, etc., etc., etc.Is there an example program for the STM32G474RE that shows a simple "write a bunch of data to Flash" and an equally simple "read a bunch of data from Flash"?Thanks!Chris 

Hello All,I designed and built a bare metal board with an STM32H723ZGT6 and it runs fine.I have blinking LED's, timer / interrupts running, HSE and LSE etc.I have been trying to figure out why if I toggle the power supply the device will not boot up clean.The device appears stable in that I have left it running overnight withn o issues.I have looked through datasheets etc. but think I am missing something really simple.The device is powered through a 3.6V 500ma LDO voltage regulator and I can see no issues on this. Pointers on where too look would be appreciated.  

Hi,I am a beginner in STM32 programming. I chose purely register based programming approach without using HAL as I find it a bit harder and slower but more contributing to the overall system performance in the long term code writing skills. This time I am asking help with the external interrupt code. Idea is to hook the external interrupt on an pulled up button and generate the interrupt each time the button is pressed (when the MCU receives falling edge.) I wrote this code that compiles and runs, but nothing happens when the button is pressed (it should turn 2 leds off). I have already verified and tested the timer, gpio and core clock setup functions, everything is working. So the problem lies somewhere in the interrupt setup syntax or the ISR itself. Since it is my first time working with interrupts on STM32, I hope only minor syntax update will get my code doing its duty. #include "main.h" void Core_Clock_Setup (void){ RCC->CR |= RCC_CR_HSEON; //Set the clock source

Two devices A & B are communicating on UART. A sends data stream to B. B sends one byte data back to A to acknowldge that data has been received. I want to implement if A doesn't receive acknowledgement from B then it display Error message on LCD.Please suggest best logic in A to implement this.As far I think I should start the UART_Receive_IT API for one byte . and complete callback sets the flag for acknowlegement. Incase flag is not set within one second or so after sending data then A display Error message on LCD. Should I start HAL_Delay(1000) after sending data and then check for flag set or not?If anyother best way, kindly suggest. I am still relatively new to coding word..so trying to find best ways.. ;)