STM32 MCUs Products

Hi, I use STM32Cube IDE, and use STM32G0 - G0B1RE device. I try to enable the mod register to blink the LED here is the code that i try so far, based on the Reference Manual (rm0444), I need to enable RCC_IOPENR before modify the GPIOx_MODER. But unfortunately it still did not work.When i try in debugging mode via the SFRs by set the value of RCC_IOPENR, GPIOA MODER (MODER5), OTYPER (OT5), PUPDR PUPDR(5), and BSRR the LED was turned on. The LED is at GPIOA (PA5) based on the schematic.Did i missed something? or there is anything to enable before I modifie the GPIOx_MODER?In the reference manual to enable to peripheral in STMG0-G0B1RE the GPIO Bus is IOPORT not AHB or

Hi community,any mcu from family STM32H7 or other that supports Profibus?Thanks a lot

Hi, I tried to read BluePill board MCU STM32F103C8T6 flash by STM32CUBE in Target information it shows Device ID 0x410 and flash memory size 128kb but by datasheet STM32F103C8T6 flash memory must be 64 kb Why is the difference?  

Device: STM32U5A9-DKBootloader AN: AN2606Reference Manual: RM0456I was trying to enter the system bootloader (UART mode) through programming the NBOOT0 and NSWBOOT0 bit which is present in the FLASH_OPTR register of the option byte region.Now, this writing to the option byte through the application code worked just fine. And we successfully entered the bootloader from the application.However I had to get out of the bootloader and enter the application. For this we need to put the NBOOT0 and NSWBOOT0 bit back to its original state to boot to the application since the Go command will only get acknowledged depending on the NBOOT0 and NSWBOOT0 bit.While trying to execute the above, i.e. re-writing the option byte (FLASH_OPTR register), by using the "Write" command of the bootloader, it messed up the other option bytes as wel

Hi all!I wrote code on my ART-PI development panel that displays a simple filled box and text (touchgfx). I use the following in both projects:FMC with 240Mhz, SDRAM with 120Mhz. W9825G6 data 16bitCPU clock 480MhzRGB888 display, MRG7122 DCLK typical clock signal 51.2Mhz, maximum 67.2MhzI made two projects.First, the peripheral initializations in the main.c file. Display works on 50Mhz.In the second project, I checked at the beginning that the peripheral initializations should be in separate files. The maximum ltdc clock here is 27.5Mhz, above which the display crashes.Why if all other settings are the same? Where should I look for the reason?Thanks!

Hello,I have made a simple project using NUCLEO-H723ZG to constantly transmit data via UDP with some low but non-trivial speed (~2300 1KB datagrams /s). Unfortunately, after about 3h of such transmission, the board crashed, and afterwards, the ethernet peripheral appears bricked -- it fails to start, it does not establish the link with other devices, only the orange LED on the port lights constantly. Otherwise, the MCU seems perfectly ok.I tried with an another board and exactly the same thing happened; this time I was monitoring the temperature of the components but there was no sign of overheating.Do you have any ideas what may be happening and how to prevent that?Thank you in advance

Hi,I am trying to implement IAP through UART on stm32f779I Evaluation kit,  I am using stm cude IDE 1.9.0 and F7v1.17.0 software package.I have downloaded IAP_Main project using st_link. By using tampered button entered into the downlaod mode and using teraterm tried to load the binary file of IAP_SingleBinary_Template example code from the examples through YModem protocol. My IAP is working fine but when it comes to downloading the binary file teraterm is showing only 2 packets is loaded and the file transfer window is getting disappear.Can anyone please help me to find out the issue. Thanks & Regards,k. Aravind

Hey everyone, just like there is a function named "Serial.available()" in Arduino,is there any such function present in STM32 ?

I have a question regarding STM32L0. I am interested in which address the registers like FLASH_ACR, FLASH_PECR, etc., are located. In the datasheet, I only see their offsets, but not the absolute value is it maybe 0x1FF8 0000?.Also I would also like to know if it is possible to read from the mentioned registers like FLASH_SR, etc., when the MCU is locked at Level 1? Because to unlock it (using an external debugger). Why all this? I want to erase mcu no matter if it is or is not in Level1 or Level 0.Thank you Jan.

Hello everyone, I am trying to make a UART Communication between STM32 NUCLEO-L476RG and ESP32 S3. The STM must send data to ESP and the ESP must print it on Serial Monitor of Arduino IDE. However, this doesn't happen, even though I have double checked the connections.  The code for the same are given below :- STM32 NUCLEO-L476RD board code:- #include "stm32f4xx_hal.h" UART_HandleTypeDef huart2; void SystemClock_Config(void);static void MX_GPIO_Init(void);static void MX_USART2_UART_Init(void); int main(void){HAL_Init();SystemClock_Config();MX_GPIO_Init();MX_USART2_UART_Init(); char data_to_send[] = "Hello, PC!"; while (1){HAL_UART_Transmit(&huart2, (uint8_t *)data_to_send, strlen(data_to_send), HAL_MAX_DELAY);HAL_Delay(1000); // Delay for 1 second (adjust as needed)}

What is the output impedance of st chip IO?

Dear Support team, I am using this STM32H755 as a motor control application. I have developed motor control algorithm on M4 and the communication with Master through SPI using M7.I need to exchange data between M4 and M7 continuously. I tried with OpenAmp_PingPong example. It works fine but it works just one time at the beginning of the program or depends on this while loopwhile (message < 100){message = receive_message();message++;status = OPENAMP_send(&rp_endpoint, &message, sizeof(message));if (status < 0)

Hello all,I wish to setup the MPU early in my firmware, then prevent changes to the MPU registers until next power-cycle/reboot.Is this possible without having the root secure services? The MCU im using is the STM32H7A3. Thanks in advance.

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Hello. I am new to using STM32 MCUs and this forum has helped me a lot in getting familiar fast. I am using using NUCLEO-F756ZG board. I have tried ADC with DMA and timer trigger and it all works fine. Now, I am trying to switch timer period dynamically along with changing DMA buffer. So, after some digging on the internet, this is what I came up with.void Restart_DMA(uint32_t ARR_val, uint32_t* new_address, uint32_t new_len) { //Disable ADC hadc1.Instance->CR2 &= ~ADC_CR2_ADON; //Disable DMA hdma_adc1.Instance->CR &= ~DMA_SxCR_EN; while(!(hdma_adc1.Instance->CR & DMA_SxCR_EN)); //Clear DMA flags DMA2->LIFCR = DMA_FLAG_TCIF0_4; //Switch timer period htim5.Instance->CR1 &= ~(TIM_CR1_CEN); htim5.Instance->ARR = ARR_val; htim5.Instance->CNT = 0; htim5.Init.Period = ARR_val; //Set new buffer and length hdma_adc1.Instance->CR &= ~DMA_SxCR_DBM; hdma_adc1.Instance->NDTR = new_len

Hello experts,I am using stm32f779I - EVAL evaluation kit, am trying to implement LWIP IAP on this board for that I have used example code from the repository C:\Users\Aravind\STM32Cube\Repository\STM32Cube_FW_F7_V1.17.0\Projects\STM32F769I_EVAL\Applications\LwIP\LwIP_IAP and binary file of application availabe in same repository, it is working fine as the binary file says four LEDS toggles, it is toggling. I have written my own application LED2 toggle with flash base address 0x08020000 and vector offset = 0x20000 and generated the binary file using STM CUBE IDE and tried to run, it is getting into not valid stack address (LED 3 is getting on ). The other way I generated the binary file using keil and loaded, now the stack address is getting valid but my application is not working as expected (LED2 is not toggling). I have attached the IAP code below which is working fine with binary file from repository but same IAP is

Posted on August 01, 2016 at 16:02 Overall objective: Using https://github.com/groupgets/purethermal1-firmware as a base, add a USB serial port interface (which would replace the DEBUG functionality it has currently). I have read through multiple posts here regarding composite devices and after about a day of work I have an attempt at the modified firmware running on the device. The video device works fine, and Device Manager shows a new COM port with no errors. So far so good. The problem occurs when I try to open the serial port - the terminal software throws an error trying to open the port. I feel like I've almost got it, but I'm not quite there. I haven't implemented certain things like handling GET_LINE_CODING control code, etc. Is that needed to open the port? Should I use [0x00, 0x00, 0x00] (use interface descriptions

Recently working with spi communication in stm32g070rb using stm32CubeIDE (HAL library).SPI master receive interrupt triggered continuosly when there is no interrupt.But same code wrote in SPI slave its works perfectly.I also put Pull down resistor.Please provide solution

Hello,I met a HAL_Delay() block. The board worked with internal RCC, and I checked the uwTickFreq when debugging, it always equal to 0.  Attached the ioc file. 

Running into a weird issue with my teams and I's capstone senior project. We are using the Nucleo dev boards and connecting it to IMU in the title via I2C. When running either HAL_I2C_Mem_Read or HAL_I2C_IsDeviceReady the status we get back is HAL_ERROR. The board and the IMU are wired correctly, the code in main.c is correct. Our advisor can plug in the board to his computer and run the code and the status will come back HAL_OK, but when I run the same code and plug in the same board I get a HAL_ERROR. Same with my two other teammates, all get HAL_ERROR. We are using default settings for I2C, we have created fresh projects to test and still get the same error. The only difference we can find is that our advisor is using CubeIDE version 1.12.1 (an older version) while we are using 1.14.1. Anyone else have this error or have any insight as to what could be going wrong? 

Hi, I am working on the NUCLEO-G491RE development board with 170MHz HSE and testing UART communication with 1mbps baud with HAL_UART_Transmit_DMA and HAL_UART_TxCpltCallback on STM32CubeIDE but only able to send around first 256 bytes and the remaining data were never sent.Why?

->MDMA is configured STM32H757 Eval to transfer 32000 bytes of data using repeat block transfer triggering Mode.-> I want to have interrupt on each Block Transfer, but I'm getting interrupt when last Block is transferred as BRC is set to Zero-> Even I'm getting all the interrupt flag sets when Interrupt Handler is called after transmission complete

I am using STM32L083 and need to erase it using J-Link. If it is locked at Level1, I also need to unlock it. My goal is to completely erase the entire Flash memory. I believe I have an error in the process, as I have been unsuccessful in both erasing and unlocking. Could anyone please advise me?Thank you very much, for any help.My attempt:    def eraseMCU(self): self.Jlink.connect(self._mcuToConnect, speed = self._swd_speed_khz) self.unlockFlash() self.unlockOptionBytesArea() self.programoptionBytes(RDP_UNLOCK) #0xAA self.reloadOptionBytes() self.Jlink.reset(ms = 1,halt = False)   where:    RDP_UNLOCK

According to the STM32H7's datasheet, the M4 core shouldn't be able to boot from an SDRAM memory address (because it's outside of the range 0x00000000 to 0x3FFF0000):However, I found out that I can actually boot the M4 core from SDRAM, if I used the alias address at 0x70000000 (which is also outside of the range) instead of 0xC0000000. So I'm wondering if this is a documentation error, or an undocumented feature/bug that we shouldn't count on ? Thanks!

Hello,I've two STM32G473 controllers connected on SPI3 and SPI5 of main controller (STM32H753).1. STM32G473 - Boot, Chip Select and Reset pins are controlled through the I/O pins of STM32H753, SPI5 of H753 is used to interface G473 on SPI1(as per note AN2606). This controllers works ok and I'm able to update the firmware of it through host H753.2. STM32G473 - Boot, Chip Select and Power(VDD) is controlled through I/O pin on H753. SPI3 of H753 is used to interface G473 on SPI1(as per AN2606). This controller always sends 0xA5 on the MISO line. Things I've tried,1. Verified the option bytes of both controllers and they are identical2. Tried to send sync byte multiple times and receive the ACKwhat could be the reason that it is not sending the ACK byte(0x79)