STM32 MCUs Products

New question split from this post.One additinal request: When checking if bootloader pin configuration has an impact on the real application it would be helpful to know the default level for output pins, likedoes the UART_TX pin drive active high or low?does the boot loader drive the SPI MISO output pin HI, LO or Z?is the CAN_TX pin drven HI or LOW?Thank you!

Hi,When reviewing the descrption of MCU pins used by the integrated system bootloader, I came across several documentation bugs in the latest AN2606 (rev70). Inparticular, Table 164 lists:USART1_TX pin - PA9 pin: USART1 in transmission mode. Used in input no pull mode: Input mode for an output pin? Same issue with USART2 and USART3.SPI1_MOSI pin - PA7 pin: slave data input line, used in push-pull, pulldown mode: Input pin does not have push-pull mode.SPI1_NSS pin - PA4 pin: slave chip select pin used in push-pull, pulldown mode: NSS ist used as an input, so it does not have push-pull mode.Same issues with SPI2 descrpition.The same problems are in Table 166. I have not checked the tables for the other CPUs, but I suggest a review of the document might reveal more issues.RegardsNorbert Unterberg   

I'd like to use a general purpose timer to continuously trigger a rtc timestamp (using H533)Is it possible ?How to map TRGO signal to Timestamp trigger ?(No HAL please, LL or direct register setup).Thanks in advance.

im having trouble displaying my own bitmap what converter should i use to convert a bmp file to array to work with this function 

Hi, EveryoneI am trying to setup STM32H7R7Z8 XSPI2 in Quad mode for APS6404L-3SQR QSPI PSRAM.The original code is generated from MX v6.116.1 and developed with IDE v2.0.0.HW info:The PSRAM is connected to XSPI2 with NCS, CLK, IO0~3. There is no DQS pin (PSRAM does not support it).The XSPI2 is setup in 133MHz frequency PSRAM supported.APS6404L-3SQR: 133MHz for 32 Bytes Wrapped Burst, 64Mb, 8M x 8bits, pagesize 1024 bytes,SW configuration:/* XSPI2 parameter configuration */ hxspi2.Instance = XSPI2; hxspi2.Init.FifoThresholdByte = 4; hxspi2.Init.MemoryMode = HAL_XSPI_SINGLE_MEM; hxspi2.Init.MemoryType = HAL_XSPI_MEMTYPE_APMEM_16BITS; hxspi2.Init.MemorySize = HAL_XSPI_SIZE_64MB; hxspi2.Init.ChipSelectHighTimeCycle = 2; hxspi2.Init.FreeRunningClock = HAL_XSPI_FREERUNCLK_DISABLE; hxspi2.Init.ClockMode = HAL_XSPI_CLOCK_MODE_0; hxspi2.Init.WrapSize = HAL_XSPI_WRAP_32_BYTES; hxspi2.Init.ClockPrescaler = 0; hxspi2.Init.SampleShifting = HAL_XSPI_SAMPLE_SHIFT_HALFCYCLE; hxspi2.Init.Chi

Hi everyone,I’m exploring whether an STM32 board can be used as a reliable USB HID host/device tool to measure mouse movement data more accurately, especially for things like polling rate, raw movement counts, and possibly estimating DPI/CPI consistency.My main questions are:Is STM32 a practical choice for capturing USB mouse HID reports with enough timing accuracy for this kind of analysis?Would this be better implemented in USB host mode, or as a USB device/proxy setup?Are there any STM32 examples, middleware recommendations, or timing limitations I should be aware of for high-frequency mouse input analysis?If someone has worked with HID polling intervals on STM32, what is the best way to log and validate the incoming report rate?For context, I built a small browser-based reference tool here : https://mouse-dpi-analyzer.com/  I’m not trying to promote it, only sharing it so you can see the kind of measurement workflow I’m trying to improve with hardware support.I’d really a

HI ALL.I am using MB1549C board with NUCLEO-U5A5ZJ-Q cpu.SD card is connected to SDMMC1 pins 4bit mode.HAL code is generated with CUBE MX.During SD card initialization CMD8 command is sent.I see that after it sent some flags are set which relates to DPSM.But CMD8 does not require data transfer on D0 pin.So DPSM must not be enabled. But I see these flags in STAR register.BUSYD0,DPSMACT,DTIMEOUT.Response is received correctly but why DPSM is enabled and of course timeout error occur becausethere is no and should not be data on D0?Thanks

Hi I am trying to set up hardware SPI using the following. My software SPI works fine, but the hardware SPI doesn't even have a clock signal.   /** ****************************************************************************** * @file : main.c * @brief : P7-SPI2: Two bursts, same 6 bytes. Burst1: SW SPI (PE2/PE6). * Burst2: Hardware SPI1 (PA5/PA7). Probe D0=PE2, D1=PE6, D2=PA5, D3=PA7. * HW SPI1: kernel clock per_ck, GPIO before SPI, CSTART errata workaround. ****************************************************************************** */ #include <stdint.h> #define RCC_AHB4ENR (*(volatile uint32_t *)0x580244E0u) #define RCC_APB2ENR (*(volatile uint32_t *)0x580244F0u) #define RCC_D2CCIP1R (*(volatile uint32_t *)0x58024450u) #define GPIOA_MODER (*(volatile uint32_t *)0x58020000u) #define GPIOA_AFRL (*(volatile uint32_t *)0x58020020u) #define GPIOA_ODR (*(volatile uint32_t *)0x58020014u) #define GPIOE_MODER (*(volatile uint32_t *)0x58021000u) #define GPIOE

Hi, I have a custom STM32N6 board where the BOOT0 and BOOT1 pins are tied directly to ground under the BGA with no test points or jumpers. Is there anyway to connect a debugger in this scenario or is my board bricked? Below is what I get when attempting to connect via an ST-Link V3: >STM32_Programmer_CLI.exe -c port=SWD mode=UR -rst ------------------------------------------------------------------- STM32CubeProgrammer v2.21.0 ------------------------------------------------------------------- ST-LINK SN : 003700163431511731343632 ST-LINK FW : V3J17M10 Board : STLINK-V3MINIE Voltage : 3.26V SWD freq : 8000 KHz Connect mode: Under Reset Reset mode : Hardware reset Device ID : 0x486 Revision ID : Rev Z Device name : STM32N6xx Device type : MCU Device CPU : Cortex-M55 BL Version : -- MCU Reset Error: Unable to run MCU! Error: Error code: 32 And this is what I get from the STM32CubeProgrammer GUI: 23:21:41:351 : UR connection mode is defined with the HWrst reset mode 23:21:41:372

Hi everyone,I tried to manage the USAR LIN break detection interrupt using only HAL driver functions but I did not find a way to do that. I had to modify the file stm32f0xx_hal_uasrt.c adding some code to manage the LIN break interrupt.Is there a way to detect the LIN break in my application without modifying the driver code?This is the code I added to the aforementioned HAL driver file:// At the beginning of the file, where other prototypes are placed   #if defined (USART_CR2_LINEN) extern void HAL_UART_LINBreakCallback(UART_HandleTypeDef *); #endif   //...   // Inside function HAL_UART_IRQHandler   #if defined (USART_CR2_LINEN) /* UART LIN break has been detected ----------------------------------------*/ if(isrflags & USART_ISR_LBDF) { __HAL_UART_CLEAR_IT(huart, UART_CLEAR_LBDF); /* Call the callback function to signal LIN break detection */ HAL_UART_LINBreakCallback(huart); } #endif /* USART_CR2_LINEN */If the function is currently unavailable, is

Hi, I want to go to sleep/stop mode with STM32 and wake on interrupt. After last interrupt it should wait for 10sec and go back to sleep. But I see an edge case where interrupt could occur just before going to sleep/stop mode.How do I handle interrupt just before going to sleep/stop mode (cancel sleep/stop mode)?Basically force WAKE from sleep/stop mode even if STM32 is not yet in sleep/stop mode?  #define STAY_WAKE_FOR_TICK 10000 static volatile uint32_t GoToSleepAfterTick; void main(void) { //... while (1) { HAL_SuspendTick(); HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_STOPENTRY_WFI); HAL_ResumeTick(); while (HAL_GetTick() < GoToSleepAfterTick) { //... } // interupt could occure here??? } } void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) { if (GPIO_Pin == CALL_Pin) { GoToSleepAfterTick = HAL_GetTick() + STAY_WAKE_FOR_TICK; } }   

Hi, I have all configured using internal loop FDCAN1 and there is not working on my STM32G474RE-Nucleo board 

 I need support to get IAP over SPI.I've esp connected to my stm32u5 over SPI. Stm is slave and ESP is master. For stm I've created project using stmcube by entering MCU part number.Now here my question is1. Do I need to develop bootloader code to achieve this.2. How do I customise bootloader code.3. STM boot pin is connected to ESP. do I need to control this?4. Hwi do I adjust my memory or linker file

Hi,I have this question because the reference manual states:“When flash high-cycle data area on Bank1 is enabled, the code memory map is not continuous from Bank1 to Bank2 on 2M- and 512K-byte devices.”So, does this mean that enabling high-cycle data sectors as EDATA on a 1MB device does not affect the code memory space, while on 2MB and 512KB devices, some sectors are reassigned for EDATA usage? If that’s the case, it seems like the 1MB device effectively has an extra 96KB of high-cycle data memory.Snaku

We had:An STM32H7Sx with an external flash on one XSPI port, and an external RAM on the other;Both external devices memory mapped;The core clock running at 380 MHz.XPI1 mapped to port 2, and vice versa.XSPI clock running at 200 MHz.Using our adapted version of ST's secure bootloader, we erased sectors of the external flash, but found that this consistently caused corruption in the external RAM, and it also looked like the erases weren't fully successful either.The driver code which carried out the erases removed the flash from the memory map before each operation, and added it back afterwards.We found that to avoid the RAM corruption, it was necessary to also remove the RAM from the memory map before the flash erase operation, and add it back afterwards.We had assumed that the two buses were independent (despite meeting in the XSPIM), so this result was unexpected; and it's still not clear to us why an erase operation in the flash would cause corruption in the RAM.Also, this probl

Hello,I am currently preparing the documentation package for CE certification of a device that uses the STM32G071RB microcontroller.Could you please clarify whether there is any official CE compliance documentation available for this MCU (or for the STM32G0 series), such as:CE declaration or compliance statementRoHS / REACH declarationenvironmental or material compliance documentationany other certificates typically provided for regulatory documentationIf a direct CE certificate is not applicable to the microcontroller itself, could you please advise which official documents from ST are recommended to include in the technical file for CE marking of the final product?A link to the relevant documents or the ST compliance page would also be greatly appreciated.Thank you in advance for your help.Best regards

Hello,I am experiencing an interesting problem on the STM32F303VET:UART1 is used to receive and transmit messages (460800 Baud), DMA1 Channel 4 is used for memory to UART TX buffer transfer, DMA1 Channel 5 for UART RX buffer to memory transfer.Under situations of high load (both reception and transmission) UART1 will stop outputting messages after two bytes. The majority of transmissions work out fine, however the error happens in every test case, though the time to failure differes between approximately 5s and 120s. The problem seems to be caused by an unintended reset of the DMA enable transmitter (DMAT) Bit in UART 1 control register 3 (USART_CR3).Above image shows the error:Trace 1 (orange) shows the TX line of UART1, where only two bytes are transmitted.Trace 2 (red) shows data on RX line. One can see that no RX takes place at the same time as TX.Trace 3 shows a debug pin, it is triggered once when DMA transfer is started.Trace 4 shows another debug pin. It is set HIGH when DMA tr

I see in STM32CubeMX that a STM32G411 exists but it has the status "restricted". I'm curious why this type is not widely available. I'm currently using the STM32G431 in an application, mainly because of its raw clock speed of 170MHz. I don't actually need its analog functions but the flash size might become too tight. In that case, my only option would be to switch to the G491, which is more expensive and contains even more unneeded peripherals... So... why is the G411 not available to the public?

Hi Team,I'm recently using the STM32U5G9ZJT6Q part in one of my design. I couldn't find the package mechanical information in Datasheet. For now, I'm using the LQFP-144 form the STM32H573ZIT3Q part number. Will it be okay? Can you please help to verify it? Attaching the below Screenshots,Screenshot from the STM32U5 Datasheet. Not having the LQFP-144 details.Screenshot from the STM32H5 Datasheet. Having the LQFP-144 details

I am working with the STM32U083RCT6 and I need clarification regarding the exact physical memory addresses of the option bytes.In the reference manual, I can see that the option bytes are located in the system memory area:0x1FFF7000 – 0x1FFF7FFFHowever, the manual only describes the FLASH option registers (OPTR, PCROP1SR, PCROP1ER, WRP1AR, WRP1BR) with register offsets from the FLASH peripheral base address. It does not clearly mention the exact non-volatile storage addresses inside system memory. I would like to confirm:1.What is the officially documented physical start address of the option byte storage in system memory for STM32U083?2. Is 0x1FFF7800 the confirmed start address of OPTR in non-volatile memory?3. If this information is not in the reference manual, in which official document can I find the exact byte-level storage mapping?4. What is the exact physical start address of Option Bytes in STM32U083?5. In which official document is this address explicitly mentioned?I am

Hi, I'm using STM32H745ZI implemented ethernet with Lwip it's working fine STM32CubeIDE(ver-1.90.0) but not in IAR(ver-9.30.1) like any changes that I need to do in .icf  file of IAR because it's working fine Cube IDE

New programmer and new to the STM32 ecosystem as well.I am working with a STM32F401 as it has 5v tolerant inputs and 2 32bit clocks.I have a simple program that reads the 2 32bit TIMs (2&5) in encoder mode, sums the results and then outputs a quadrature signal to a device. I have the GPIO outputs set to "low" speed, which according to my reading should give them a max of 2Mhz output.Even this appears to be too fast with the HCLK set to the maximum of 84Mhz. On a scope the signal looks pretty bad and my device (cheap DRO) cannot read the signal at that speed. If I drop the HCLK down to 4Mhz everything works as expected and I get real nice square waves on the scope but this feels "kludgy"My question is, is there something else I should be looking at to adjust the output rate? HAL_Delay etc feel even more kludgy than stepping the clock down.Any help would be greatly appreciated; Code follows while (1) { /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ int32_t cnt1 = __HAL_

The bootrom of STM32N6 can drive winbond nor flash memory?Such as W25Q? 

PART NO: STM32H743IIT6CUBE_IDE VER: 1.19.0SDK : STM32Cube FW_H7 V1.12.1LSE PART NO. : CM9V-T1A-32.768kHz-12.5pF-20PPM-TA-QCHello everyone,I am trying to use RTC on mentioned STM part number. I have enable LSE and configured the RTC.Currently i am not using any battery, i am using a power supply with 3V to VBAT.After boot up inside HAL_RCC_OscConfig, i am getting timeout while checking RCC_FLAG_LSERDY flag.   while (__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) == 0U) { if ((HAL_GetTick() - tickstart) > RCC_LSE_TIMEOUT_VALUE) { return HAL_TIMEOUT; } }   The sequence is, once i have provided VDD then VBAT, everything works fine.Next i just turn off the VDD, VBAT is still present.Then i turn on the VDD and facing this issue.Another thing to note is, i am not facing this issue with LSI. So i changed the crystal but facing the same issue.Also the PDR_ON pin is connected to VDD according to specifications.Is it possible to provide any insight of why this is happe

Hi! I am trying to muddle my way through a design that revolves around an STM32U5 MCU, and am specifically trying to think about ESD protection. I have been referencing AN5612, which quite helpfully provides lots of specific examples for various applications (though it seems to perhaps be falling out of date, as a handful of the devices mentioned seem to now be marked NRND). One thing that I can't quite wrap my head around, though, is ESD protection as it relates to running some or all of the power domains of the MCU at 1.8V. For example, the datasheet for the stm32u59xx has an Absolute Maximum Ratings table that shows most FT (5V tolerant) pins have a max rating of either 5.5V or min(Vxx+4.0, 6) - so 5.8V in this case - with other pins having a max rating of 4.0. I know these are DC voltages, but I think I understand that it's these values I should use when trying to parametrically search for ESD protective devices, such that they have forward voltages above 1.8V and clamping vol