STM32 MCUs Products

Attempting to blink an LED using output compare function of a timer, but I've not been able to get signal or toggling to happen on the pin.I'm using TIM5 channel 3, because I'm planning on using SPI1 eventually (I need to use a clock source separate from SPI1, which is on APB2) and the TIM5 associated alternate function GPIO on PA2 is in a convenient location.Meter on the pin indicates a floating pin signal (not going high or low), and LED visually indicates same (no dim light or other visual indication of rapid toggling).The pin itself is fine as normal GPIO: setting same pin as GPIO (not alternate function for TIM5), I'm able to blink "manually" via software. It seems to just be using that pin as TIM5 that causes problems.Here's the CubeMX setup:

Hi!I want my ESP32F411CE Blackpill to operate as an SPI slave device. The Master is not my creation, it is an already existing hardware, and my task is to emulate some Slave.Well, almost SPI. Here is what happening: Master sets CS line high, and reads 3 byte from the Slave on MISO line. Then it sets CS line low, and sends one byte on MOSI line. CLK frequency is 1MHz, SPI Mode2. I know it is not a proper SPI communication, so there is a transistor added that inverts the CS line. So the MCU doesn't see this in the image above, but the CS line inverted. It is a win-win, because it make the second short clock signal skipped, and that is exactly my intention.

I created standard project in CubeIDE for Nucleo 411RE ( with default settings)I found some code (which interfaces 4x4 keypad) and try to repeat it with HALI setup pins PC0,PC1,PC2,PC3 with Input mode and Pull-up.PC4,PC5,PC6,PC7 as Output and GPIO output level - High all this based on my understanding code I try to repeat ( below )Did I do correct repeating with HAL ? ( As I understand CubeIDE will generate GPIOs the same way as function ?void keypad_init(void) { /*Enable clock access to GPIOC*/ RCC->AHB1ENR|=RCC_AHB1ENR_GPIOCEN; /*Set PC0 to PC3 as input*/ GPIOC->MODER &= ~(GPIO_MODER_MODE0|GPIO_MODER_MODE1|GPIO_MODER_MODE2|GPIO_MODER_MODE3); /* Activate internal pullup resistor for PC0 to PC3*/ GPIOC->PUPDR|=GPIO_PUPDR_PUPD0_0|GPIO_PUPDR_PUPD1_0|GPIO_PUPDR_PUPD2_0|GPIO_PUPDR_PUPD3_0; /*Set PC4 to PC7 as output*/ GPIOC->MODER |= GPIO_MODER_MODE4_0|GPIO_MODER_MODE5_0|GP

Hello everybody, I am currently trying to trigger a DMA request with TIM12. I have configured the timer in PWM Input Mode on CH1. While for every other timer there is available a DMA request, there is nothing for TIM12 except the one bellow(in RF0399): Is there any trick to come around from it? I found some older discussion but i didn't have any luck:How to

I made a mistake and set PC2 as an ADC input and PC3 as an GPIO_EXT. The IDE does not warn you when setting the pin to GPIO_EXT, it only shows the warning in the ADC, so I missed it since the ADC was already set.The question is, is there anyway to make this work. The issue I am seeing is the ADC is reading incorrectly. The GPIO_EXT works fine. Thanks.

Question moved from this post. If I have two devices on the same PCB. say an F7 and an MP157, can the CAN_TX of one be connected to the CAN_RX or the other without a CAN transceiver? Similar to UARTs on the same PCB. Maybe series resistors would be required, or pull ups?

 Hello, I have a question about STM32H7S3A8I6 MCU.https://www.st.com/resource/en/application_note/an5935-getting-started-with-stm32h7rx7sx-mcus-hardware-development-stmicroelectronics.pdfLooking at Table 2 of the description in the PDF above, for graphics, STM32H7S3xx specifies GPU2D as N and GFXMMU as Y.https://www.st.com/resource/en/datasheet/stm32h7s3a8.pdfLooking at Table 21 in the following PDF, there are UFBGA 169 SMPS GFx and UFBGA 169SMPS GP. Can I look at the pin number with GFx?

I'm trying to migrate a project from HAL back to SPL as it's less of a haul than porting our code I have to integrate to HAL. The HAL program compiled but at some point during my porting process I'm now getting link errors ONLY for _fstat and _isatty, not any of the other functions defined in the assert.cThe assert.c is the same between a working SPL based project we have and the new one I'm creating, so nothing has changed there. If I implement _fstat in my main.c it still complains that it can't link.Linker Error:c:/program files (x86)/gnu arm embedded toolchain/10 2020-q4-major/bin/../lib/gcc/arm-none-eabi/10.2.1/../../../../arm-none-eabi/bin/ld.exe: c:/program files (x86)/gnu arm embedded toolchain/10 2020-q4-major/bin/../lib/gcc/arm-none-eabi/10.2.1/../../../../arm-none-eabi/lib/thumb/v7e-m+dp/hard\libg_nano.a(lib_a-fstatr.o): in function `_fstat_r':fstatr.c:(.text._fstat_r+0xe): undefined reference to `_fstat'I've also tr

Hello, What can i take for a MCU which has function with Low Speed USB 1.1 ? I must make a USB HID Interface as Gamecontroller. It is essential to prevent the PC from getting stuck on the USB port, and this is only possible with USB 1.1.   greets Stefan  

Hi, I have an application with 4 legs PFC and 2 legs inverter controlled by the STM32G484VET3. Can I use one input to disable both when a fault happens independently from the software?   Thank you.

Hi,is there a 64Kb drop-in replacement for the STM32C031G6U6 (which is only 32kb)?We need to find a part where - ideally - we just use the same code without any mods, this is the most important part.And is there perhaps a tool that helps with that? Or at least allows us to make an accurate comparison check between two parts?We just use GPIOs and 1 x RS232 and 1 x I2C in their default pin locations.Thank you

Hello, I have tried a number of I2C slave tutorials found on YouTube with no success, but none are specifically for the STM32G03 series. Also I am getting a very strange phenomenon. In CubeMX for I2C2 I set the first slave address to 0x012. On my PC I am using python with a USB adapter to scan() the bus. I have an EEprom on the same bus an the scan address is correct but for the MCU it returns 0x13?Has anyone encountered this address shift?Is there ANY WORKING examples for this MCU series? This is my first post on this community.

Hi allI'm pretty sure this was already a topic, but i haven't found a solution yet. Since i'm a beginner i definitely need some help here.I'm sending UDP data with LWIP and FreeRTOS. It works, but after some (random) time the code gets stuck at    configASSERT( pxQueue->uxItemSize == 0 ); I tried some settings but nothing helps. It is stopping even if I do not send data . 

Hi,how do I start the USB DFU Bootloader with a STM32C071 Nucleo? I tried it while putting Boot0 to high and pressing reset or do a power cycle but the STM32 DFU does not show up in the device manager. I connected USB to the NUCLEO extra USB port of the C071. I tried with another board (F2 MCU) where it worked well to prove that the drivers are installed. BRMatthias 

Hi I have a question that blocked me for several days, Hopefully someone can help, thanks a lot.1:MCU:STM32G0B0CET6,Develop tool:STM32CubeIDE2:I wanna have a test for OTA ,so i create a bootloader project and app project3:Flash segmentation:1)Bootloader(32KB),0x08000000~0x08007FFF    APP(240K):0x08008000~0x08047FFF    APP BAK(236K):0x08048000~0x08079FFF   INFO(8K):0x0807A000~x0807FFFF4:In Bootloader ,try to jump to APP(0x08008000):5:Attached the source code (bootloader and app) and hex file(in debug directory)6:Modifed "ld" file in bootloader project and app project, and I confirm  the stack address in 0x08008000 and reset_handler in 0x08008004 is correct.And have set vector in main entry(first line in main()):SCB->VTOR = FLASH_BASE | 0x8000;7:If i u

HiI've been struggling trying to get an Image from a Image sensor over DCMI via the GPDMA on an STM32U575.The image sensor has a resolution of 752*480, though I only want to capture 420*420, which I've configured on the sensor to output. I've also configured it to output a B&W image meaning I only get one byte per pixel.I've used the DCMI_ContinousCap_EmbeddedSychMode example as the basis for my code, though I'm not using an omnivision sensor so I've swapped out the configuration for one required for my image sensor. However, for the most part, I have not modified the GPDMA or linked list settings from this example, just the I2C comms (swapped to SPI) and DCMI to external synchro, and DCMI polarities to match my image sensors output.when I try to pull a full image in one DMA transfer, I get an overflow error after only receiving half the image (88200 bytes). When I make the image size 360*360 I get the full image just fine (129600

Hey all,I have a Sony IMX686 camera module connected to the STM32N6 Discovery Kit, streaming video to the on-board LCD. The sensor outputs a single-stream RAW Bayer format on Virtual Channel 0, and the DCMIPP receives the data correctly — up to a certain horizontal resolution. The issue appears to be related to a bytes-per-line limit within the DCMIPP or its DMA pipeline.When the IMX686 outputs RAW8, the DCMIPP can only handle horizontal line lengths up to 1552 pixels. If I increase the width beyond 1552 px (e.g., to 1668 px), I begin to see horizontal distortions in the lower portion of the frame. These distortions worsen as the width increases. See the images below.

I am using STM32U575 Nucleo development board and I am trying to configure DMA through STMCube IDE. I have configured the DMA and generated code through it. Added required code but I am not getting data on serial through DMA. Is there any alternate way to get data on serial using DMA?

I am working on an isolated monitoring system for currents, voltages, and heatsink temperatures, and am using the ADCS on the Nucelo-F446RE to take the readings. Initially testing was going well demonstrating good linearity and accuracy across a range of set-values. However, after having reworked one of my temperature channels, and making minor adjustments to the configuration of the Nucleo board to configure it to read a different ADC channel, the values collected by the ADC suddenly became very erratic (inaccurate) and imprecise (larger range). For example, in the attachments I have included x2 sets of values collected before and after the issue started to occur. A quick summary of the full results can be seen the the table below Pre IssueRaw Value3.3V Ref EQ60V Full Scale EQError vs Ideal (%)Post Is

Post Edited by ST moderator to apply source code formatting and translate from Chinese to English to comply with the community rule: Best regards, Gyessine Hello everyone, I am trying to implement the 6-Step Trapezoidal Control using the COMG event in STM32F411RE as said in the datasheet.   Situation: I am using 3 half bridges each driven by a single IR2110, IR2110 requires only one input signal to be hi

Can i use UART + DMA  ( normal ) + RTO ? I try to add RTO but when activate RTOE bit the DMA buffer stops fills .I take interrupt with active RTOF , stop DMA , but nothing in buffer !? I use stm32H7 with hardware implemented RTO. Can some one to give working example ? 

Hi,I am currently working on the firmware of a PCB with an STM32G031K8T6 as the MCU, supplied by a 1.8V voltage.When I enter Stop 1 mode, the consumption of the MCU drops to 100uA, instead of the 7uA stated in the datasheet.The app_stop function is as follows :void app_stop(void) { timer_uninit(); i2c_slave_uninit(); i2c_master_uninit(); gpio_stop_mode(); HAL_SuspendTick(); SystemClock_Config_StopMode(); HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI); } void gpio_stop_mode(void) { GPIO_InitTypeDef GPIO_InitStruct; GPIO_InitStruct.Pin = GPIO_PIN_All; GPIO_InitStruct.Mode = GPIO_MODE_ANALOG; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); HAL_GPIO_Init(GPIOC, &GPIO_InitStruct); GPIO_InitStruct.Pin = GPIO_PIN_All; GPIO_InitStruct.Pin &= ~(GPIO_WAKEUP_PIN); GPIO_InitStruct.Mode = GPIO_MODE_ANALOG; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL

Hi everyone,I'm having a hard time with the FDCAN on a NUCLEO-H723ZG. I’ve tried several setups (external with transceivers, external loopback with wires), but I’ve stripped everything back to Internal Loopback mode on FDCAN1 to simplify things.Current situation: I can actually see that the frame is sent successfully (no TX errors), but the receive interrupt/FIFO never triggers. It’s like the frame is going out into the void and not looping back into the RX FIFO.I'm using the HAL drivers.Here are the errors/status I'm getting via printf:Full code is available here:&nbs

Hello,I am attempting to measure the current consumption of an STM32L4 before and after entering STOP2 mode using a DC power supply. I expected the initial current of 165mA to drop down to the $\mu A$ range upon entering STOP2 mode, but it only decreased by 5mA.For my configuration, I have only enabled System Core - SYS - Debug - Serial Wire and a single GPIO pin for toggling to monitor the status via an oscilloscope. When STOP2 mode is activated, I confirmed with the oscilloscope that the GPIO toggling stops completely, indicating the CPU has halted. However, the power supply current remains high.I have attached my main.c file for reference. Could you please check if I have missed any necessary configurations or if I am doing something wrong?Thank you in advance for your help.

Greetings ST Community,I am a junior embedded developer, and I have recently worked on a project utilizing some old systems which run on the STM32L100R8T6TR chips. I had a need for an unique chip identifier for use in a communication protocol, and therefore I attempted to use the 96-bit UIDs in these chips. However, I now have two questions regarding these UIDs.First off, I used the firmware created for the platform I was developing on, and the UIDs fetched using the addresses specificed in this firmware access the address 0x1FF80050U as the UID_BASE address, and then +4U and +8U for the next sections of the 96-bit UID respectively. The values extracted using those value seem like the correct values, however I have now found two chips from a sample of 16 with the exact same UIDs unfortunately: 30h 35h 47h 04h 39h 39h 32h 39h 03h B7h FCh 48h I investigated this issue by consulting the documentation, which led me to my next question...