Solved

In STM32L432KC(arm cortex-m4+FPU) there are two ram memory blocks. Following is a snippet from the linker script I use._e_ram2_stack = ORIGIN(RAM2) + LENGTH(RAM2); _e_ram_stack = ORIGIN(RAM ) + LENGTH(RAM ); ... RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 64K RAM2 (xrw) : ORIGIN = 0x10000000, LENGTH = 16KI can set main stack pointer(MSP) to use `_e_ram_stack` or `_e_ram2_stack` without problem. However when I try to set thread mode to use process stack pointer(PSP) I start to get `INVPC` hard fault on SysTick interrupt return `pop {r7, pc}` instruction.If I subtract 112 from `_e_ram_stack` or `_e_ram2_stack`, only then I can start using PSP without problem. Something is preventing the use of end of memory address as top of the stack for PSP, but I couldn't find anything related to that in ARMv7-m architecture manual.Following is the only change I did in the project code of STM32CubeIDE. Main program is just a dummy while(1) loop and only SysTick interrupt is enabled.Reset_Handler: ldr s

Hey,I use stm32h745, I want to use FDCAN1 communication with both cores.What is the effect of the decision on which core to perform initializer in the CubeMX?

Hi, got a problem opening the .ioc.It shows me this error.  

Hello,I purchased several of the SMT818 chips and was testing its watchdog timer capabilities for my TI MCU. I started with an input pulse that the MCU sent every 500 ms from a 3.3V GPIO pin into the WDI input. Looking at both this input pulse and the NRST output, I observed that the NRST output stayed high but when I removed this input pulse, the NRST output still remained high and did not attempt to reset like it should have, shown below: (blue signal is the NRST signal and yellow is the WDI signal)I then lowered the input pulse to 31.25 ns which is the fastest my MCU can trigger. This is where the behavior got strange. Instead of remaining high when the WDI signal triggered, the NRST signal started periodically going low for roughly 200ms shown below. When I removed the 31.25ns WDI input, the NRST signal stopped triggering and remained high.As a watchdog timer is supposed to reset a device that could be deadlocked, the behavior described above is clearly the opposite of what we need

I need to measure the time it takes for a component to reach a certain voltage, read out with the ADC. So far I have been measuring in microseconds but it turned out that that is not precise enough.I found the following code to measure time on Stackoverflow and it works well, but I only superficially understand it and I can't really modify it.// setup__HAL_RCC_TIM2_CLK_ENABLE();TIM2->PSC = HAL_RCC_GetPCLK1Freq()/1000000 - 1;TIM2->CR1 = TIM_CR1_CEN;// read time in microsecondstime_start = TIM2->CNT;Can someone explain to me how it works and if I can modify it to measure nanoseconds? There might a super obvious way to do it but, again, I don't understand the code (This is what I get for copying code from the internet I guess)Is there maybe a better solution than this? Some additional info:I don't need the measurement to be super accurate, whatever the chip itself can provide is probably enough for my needs.I've set up the ADC in continuous conversion mode and DMA circular w

Can TOF sensors such as VL53L1X and VL53L5CX be cleaned with alcohol and/or cleaning wipes or be submerged in cleaning alcohol?

Hello all,In both files sfu_kms.h and sfu_interface_crypto_scheme.h there is a header guard called SFU_KMS_H.sfu_kms.h:sfu_interface_crypto_scheme.h:Is that a bug or intentional decision?

Dear Community,I've got STM32H730 with ext Flash on OCTOSPI2 and ext RAM (s70kl1283) on OCTOSPI1.I call  SCB_EnableICache(); and  SCB_EnableDCache(); early in main, then I configure the MPU.I've got no problems executing code from ext Flash/OCTOSPI2 when MPU is configured as follows:MPU_InitStruct.Enable = MPU_REGION_ENABLE;MPU_InitStruct.BaseAddress = OCTOSPI2_BASE;MPU_InitStruct.Size = MPU_REGION_SIZE_16MB;MPU_InitStruct.AccessPermission = MPU_REGION_FULL_ACCESS;MPU_InitStruct.IsBufferable = MPU_ACCESS_BUFFERABLE;MPU_InitStruct.IsCacheable = MPU_ACCESS_CACHEABLE;MPU_InitStruct.IsShareable = MPU_ACCESS_SHAREABLE;MPU_InitStruct.Number = MPU_REGION_NUMBER4;MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL0;MPU_InitStruct.SubRegionDisable = 0x00;MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_ENABLE;HAL_MPU_ConfigRegion(&MPU_InitStruct);It has a big, measurable impact on the execution speed compared to non-cached OCTOSPI2 MPU configuration.I can also execute code from ext RAM

Hi, i come across a H7 code that use HAL_StatusTypeDef , could anyone kindly advise what does the HAL_StatusTypeDef do, whats HAL_OK means? what does ret != HAL_OK mean? and what does return HAL_OK means?HAL_StatusTypeDef spi_write(reg, *pData){  HAL_StatusTypeDef ret;  uint8_t sendData[2] = {reg, *pData};   HAL_GPIO_WritePin(...SPI1_CS_Pin, 0);  // CS pull low  ret = HAL_SPI_Transmit(&hspi1, sendData, 2, 20);  if  (ret != HAL_OK)  {              HAL_GPIO_WritePin(.., SPI1_CS_Pin, 1);  // CS pull high              return ret;  }

Hi all,   I have a problem which is bugging me as I can't figure out what im doing wrong. I am trying to read from ADC_IN4 but are reading wrong values. I should be reading apprx. 30000 ADC value but i am reading apprx. 7800. I think that this indicates that i am not reading from the right channel because there is a LM20 temperature sensor connected to PC3 which is ADC_IN4 on stm32L475x and the value does not change if i apply heat or cold. I want the TIM4_TRGO event to trigger ADC conversions with 16x oversampling, and at sequence end, trigger EOS interrupt where i read the ADC data. Later on i want to connect it to DMA. I have never really worked with update events on stm32 so I think I am maybe doing something wrong setting up the update events, maybe im mixing up interrupts and events, or the ADC channel configuration is wrong. I really hope someone can help me. Thanks. #include "stm32l475xx.h" #include "variables.h" volatile uint32_t count = 0; volatile uint32_t result = 0;

Hello,I keep getting an NMI fault when I attempt to read a variable with gdb (either with a mouseover on a variable in STM32CubeIDE or the print [var] command in gdb). I'm not seeing anything useful when I view the microprocessor registers after the fault.I'm using the stm32g474 hal library along with a linker, startup file, and interrupt _it files that are normally generated by default with the STM32CubeMX software for a G474 nucleo board. However, I'm using cmake 2.47.6 and the arm gcc/g++ toolchain 11.2-2022.02 for the build process.Thank you

Hy,I am new by using nucleo board. I am evaluating the bootloader which runs fine for y first tests and I try to enlarge configuration capabilities. To focus on this goal I am looking for the registers map available with STM32L0 series.In the reference Manuel are documented each peripherals with their registers through offset address, but not the reference address for each kind of peripheral. A description of those addresses will be welcome.Butterfly-fr

Hi community, I´m new to NFC and looking for a st25dvxxkc BSP driver for my custom board.I see in the product MKBOXPRO the st25dv04kc is also used, what confuses me is two similiar folders for st25dv exist under the folder: Drivers/BSP/Components/, and they also have the similar contents:can someone explain me why? is it necessary to copy these two folders oder only one is enough?   

Hi Team,I have enabled the flux weakening for the Motor. But as per my understanding, flux weakening helps us to run the motor beyond the rated RPM. But in my case, I am not able to see that difference.Could you please help me understand how it works or have I missed some of the steps while configuring the project? 

hello community,I´m using PB10/PB11 as I2C1 and PB6/PB7 as I2C2.I2C1 works correctly.But I2C2 not, after reset on PB6 and PB7 I just get some messy signals as below, It seems the I2C2 is not initialized with succcess.Actually the both I2C are initialized in the same way:Here is the pin definition for both I2C//sensor1#define BSP_I2C                                   I2C1#define BSP_I2C_CLK_ENABLE()                      LL_APB1_EnableClock(LL_APB1_PERIPH_I2C1)#define BSP_I2C_CLK_DISABLE()                     LL_APB1_DisableClock(LL_APB1_PERIPH_I2C1)#define BSP_I2C_DATA_PIN                          LL_GPIO_PIN_10#define BSP_I2C_DATA_GPIO_PORT                    GPIOB#define BSP_I2C_DATA_G

Hi,please advice with the issue of motor profiling.mcsdk: 6.2.1control board: nucleo-g474reBridge: XNUCLEO-IHM09M2Power Board: STEVAL-CTM009V1Motor: Motenergy ME1304 How can I run motor profiler for this setup?MC Workbench does not allow to generate FW for motor profiler. Best regards, Taras.

Hi!I am looking into the possibility on using LPTIM1 to trigger a DMA transfer with no CPU interrupt. This timer is chosen because it can be clocked directly by the HSE clock input. In the datasheet of STM32H7B3 (DS13139 - Rev 8) table 4, it states that LPTIM1 cannot be used for DMA request generation. In table 103 in the reference manual (RM0455 Rev 11) lptim1_out is listed as as a resource. Does this mean that it is not possible to use an output from LPTIM1 directly as an DMA request generator, but it is possible when using the DMA mux?Any clarification would be appreciated!   

Hello Guys,  i want to use the Display SSD 1322 OLED with the STM32F411-VET6 Development Board but i cant use the example on github: https://github.com/wjklimek1/SSD1322_OLED_library it comes with many errors when i use the library for the STM32F411. Following error displays on CubeIDE "error: 'hspi5' undeclared (first use in this function)". i have attached my project file for testing.   many thanks!  

Hi All,I have created a copy of an existing CubeIDE project "riverdi-70-stm32h7-lvgl" as you see below. The second project doesn't have the active CM7 project feature that allows to build, it just shows CM7 folder. What is the reason for this? I tried importing as "Existing Project into Workspace" still the same. Is there anything that need to be taken care while importing multicore MCU projects?  How can I have the same view as the previous version of the project?Thanks.    

I am using F411 as the main controller of some DAC/ADC modules.I need to put MCU in stop mode to reduce its power consumption.I wonder whether or not I need to configure all the I2C, SPI, and UART interfaces when MCU wakes up from stop mode.

Newbie here!Setup:STM32CubeIDE 1.10.1Brand new NUCLEO-L476RG with MCO from ST_LINK MCU, no mods to the boardNew STM32 project using CubeMX 6.6.1, default mode for peripherals usedSystem Core -> RCC -> HSE = BYPASS Clock SourceClock configuration shown in attached, which is just the default values and switched from HSI to HSECode generated, no mods to the codeRunning the code lands me in the Error_Handler(). Found I end up with HAL_TIMEOUT at the attached code. I've changed the HSE Startup Timeout Value to 10,000 ms and still get a timeout returned. Can anyone help with what I am missing? I'm really new to this stuff but have done the same steps with a brand new NUCLEO-F446RE and have no issues. I've also tried the latest CubeIDE/MX and another NUCLEO-L476RG board but have the same problem. A big thank you in advance! Let me know if I can provide more info.   

 Hi there,I currently work on the integration of OPTEE to our custom STM32MP151C-based platform. The problem that I've faced is that U-boot hangs just after the board_init_f() function and relocation procedure: NOTICE: CPU: STM32MP151CAC Rev.ZNOTICE: Model: STMicroelectronics custom STM32CubeMX board (TF-A)INFO: Reset reason (0x15):INFO: Power-on Reset (rst_por)INFO: FCONF: Reading TB_FW firmware configuration file from: 0x2ffe2000INFO: FCONF: Reading firmware configuration information for: stm32mp_ioINFO: Using USBINFO: Instance 2INFO: Boot used partition fsbl1NOTICE: BL2: v2.6-stm32mp1-r1.0(debug):v2.6-dirtyNOTICE: BL2: Built : 13:14:26, Nov 23 2021INFO: BL2: Doing platform setupINFO: RAM: DDR3-DDR3L 16bits 533000KhzINFO: Memory size = 0x8000000 (128 MB)INFO: DFU USB START...INFO: phase ID :3, Manifestation 3 at c7146592INFO: Send detach requestINFO: Receive DFU DetachINFO: DFU USB STOP...INFO: BL2: Loading image id 31INFO: Loading image id=31 at address 0x2ffff000INFO: Ima

according to datasheet I can set the RF field to High or Low via the MOSI pin, but when I look at the real RF field I found the problem that the RF field is set to Low and goes High immediately not remain low as ns delay time I set at firmware

Hi, I am looking for reliability data for :ASM330LHH - ISM330DLC - ISM330DHCX - ISM330DHCXTR - LSM6DSO - ISM330 DLCTRI am looking for especialy MTBF or FIT but also if possible MTTF. Where can I found them ? Thanks by advance

Hi ST Community,is there a way to retrieve the Reader UID using ST25SDK?