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I'm a bit of a novice at programming, but I'm trying to develop an application that sends a continuous stream of data out of the USART using DMA, taking advantage of the DMA Transfer Half-Complete, and Transfer-Complete interrupts.  I've got a circular DMA USART transmission working, but when I enable either of the interrupts, my code goes into an InfiniteLoop: handler.  I'm using a BluePill (STM32F103C8) and writing in VSCode / PlatformIO with the Arduino-ststm32 framework.I can't figure out how to tell the code where I want it to go when either of these interrupts fire.I'm doing a lot of this programming "bare-metal" because I don't really know how to determine what core and/or library tools I have available to utilize.  I see a lot of examples on the internet, but invariably they are using a different setup (framework etc) than I am, so their code doesn't really port to my IDE.Help?!Here is my code (couldn't figure out how to attach it)#include <Arduino.h

I'm using an STM43H755 (on a NUCLEO-H755ZI-Q) and I need to send pixels to an external LCD module (320x240, 8bit MCU bus on ILI9341 controller, 3.3V compatible).I've used plenty of single core MCUs like F0, F4, F7 and others from ST in the past but It's my first contact with this dual core MCU, so perhaps I'm missing some initialization or code down the path..I'm focusing on access time and performance so I'm using the FMC on the LCD 1 bank, with Register Select on A8, Chip Select on NE1, 8 bit data on [A0..A7], Write Operation enabled, Write FIFO enabled, Extended mode disabled, FMC bank mapping is set to Default.Speculation default mode, MPU, I-Cache and D-Cache on the M7 core are disabled, MPU on the M4 core is disabled.No other peripherals are enabled except: 3 GPIO outputs for the leds on the Nucleo, 1 GPIO input from the blue button, 1 GPIO output for the LCD reset.The main 8 MHz clock is taken from the debugger, M7 clock is 400 MHz, M4 clock is 200 MHz, FMC clock is 20

Hello Community, I am new here and new to this field as well. I am currently using the VL53L8CH Lidar Sensor which has a MZAI some GUI tool to access and save data logs along with some visualizations of the data.I am currently doing some experimentation with the sensor and trying to understand the output data. I have the excel file through which I am accessing the CNH data.1. What does the CNH data even mean, why are some values -ve in it, the CNH plot provided by the BUI doesnt show any -ve values but the graph there is all in the +ve axes? My Experiment: Placing a flat white reflective square object at around 5 feet along with another larger flat white square object at 2 bins apart behind object 1 (considering the bin width to be around 222mm as the sensor is in 8x8 mode and the number of bins is 18 over the 4000mm range of the sensor). My Findings: When I drew histograms/bar graphs of these CNH values for the zones that were illuminated for Object 1 (the smaller objec

log:​Converting imagesCompiling gui/src/demo2_screen/demo2View.cppgui/src/demo2_screen/demo2View.cpp:6:17: fatal error: rtc.h: No such file or directory #include "rtc.h"         ^compilation terminated.simulator/gcc/Makefile:220: recipe for target 'build/MINGW32_NT-6.2/gui/src/demo2_screen/demo2View.o' failedmake[2]: *** [build/MINGW32_NT-6.2/gui/src/demo2_screen/demo2View.o] Error 1simulator/gcc/Makefile:182: recipe for target 'generate_assets' failedmake[1]: *** [generate_assets] Error 2simulator/gcc/Makefile:40: recipe for target 'all' failedmake: *** [all] Error 2​rtc.h is the header file for a hardware peripheral.

Hi!I am writing a bootloader for an STM32H7S3L8, that received the application binary over UART and places it into flash, specifically on address 0x08008000, and I am getting hard faults when jumping to the address.If I "install" the application AND bootloader through STM32CubeIDE with SWD, I can successfully jump from the bootloader to the application at runtime. Even if I copy all the application bytes from flash to a RAM section, I can successfully jump to the application and execute it there (from RAM).But as soon as I am trying to execute from flash that during that runtime session has been erased and then written to, I get hard faults. I even tried just copying the application bytes to ram, erase the flash and copy the application bytes back to the same memory location, and execution from there doesn't work.From googling around, I suspect that the D and/or I cache might be the problem. I can disable I cache, but I can't disable D cache, then I'm not able to write and read from fl

Hello.I am developing a UART bootloader. Currently developing it on the Nucleo H7S3L8 that sports the STM32H7S3L8 microcontroller, 65K flash, ~450K something RAM.I have implemented the ol' JumpToApplication pattern that can be found all over the internet: typedef void (*pFunction)(void); #define FLASH_APP_START_ADDRESS ((uint32_t)0x8008000U) #define BOOTLOADER_START_ADDRESS ((uint32_t)0x8000000U) // Just for testing void JumpToApp(void) { const uint32_t jump_address = *(__IO uint32_t*) (FLASH_APP_START_ADDRESS + 4U); const pFunction jump_to_application = (pFunction) jump_address; SCB->VTOR = FLASH_APP_START_ADDRESS; uint32_t sp_addr = *(__IO uint32_t*)FLASH_APP_START_ADDRESS; __set_MSP(sp_addr); __enable_irq(); jump_to_application(); } If I use the BOOTLOADER_START_ADDRESS as jump_address, it will (just as expected) jump back to the ResetHandler of the bootloader, that resides in the startup.s file (generated from CubeIDE). So I have verified that my "ju

I have a hardware question about the viper53e chip.  For VDD startup voltage, what is the correct voltage to guarantee the mosfet switching will start?  I have seen some examples where 11.5V was not enough, and curious to know what the is the best VDD to use at startup, to guarantee the mosfet will turn on?

I'm working on getting the ST25R3916 to communicate with an NTAG215 on the target application, and had it wired up with the antenna today. When I send a measure amplitude command, I get 89 = 1.159 Vpp without a tag in the field (the same value I got from the NFC08A1 dev kit).I have it sending an ALL request every 2 seconds, and when a tag is at the center of the field aligned with the antenna, I measure 49 = 0.637 Vpp when a tag is in the field, but no receive-related interrupt is triggered, just the same TXE and NRE interrupts as is typical during the 2s cycle.Is 0.637 Vpp sufficient to communicate with an NTAG215? Is there anything else from the ST25R3916's perspective I can measure to debug?

Calibration of ToF sensors requires a target which is '17% reflective'. Can I take it this means a simple peice of paper or card printed on a laser printer at 83% black (greyscale)?Thanks

Hi,I understand this has been discussed before, but can we please get an official explanation of how the dma tail pointer works in the Stm32H7 eth mac ip block? It's extremely difficult to write software to support the eth mac when the docs and example drivers are questionable and the actual functioning of the silicon is simply left to guess by a lack of official information. Issue: 2974/3357 RM0468 Rev 3 clearly says that the tail pointer is "an offset from the base", ie, it is not an absolute address or an index of a descriptor (from 0 to max descriptors). This completely disagrees with the cube driver which sets this as an absolute address: https://github.com/STMicroelectronics/stm32h7xx_hal_driver/blob/a7ac5eac41b0c73072401566237ba202f07251cf/Src/stm32h7xx_hal_eth.c#L1218 So, can we get an official no-further-questions answer for what kind of address is supposed to go in the tail pointer? Thanks,

good morning, I'm trying to import a neural network for NILM (non-intrusive load monitoring) in the stm32 environment, but I can't complete the analysis due to the presence of the error: INTERNAL ERROR: unpack_from requires a buffer of at least 122836864 bytes for unpacking 4 bytes at offset 122836860 (actual buffer size is 1654784) The network is CNN type and I'm working with xcube ai v. 9.0.0 and stm32cubeide 1.15.1I'm asking anyone if they know how I can solve the problem of the buffer size.Belolw I share the link for the TFlite model (seq2point_CNN_converted_model.tflite), thanks in advantace.https://drive.google.com/file/d/1FhDdYCNd0y86SptZ5FHCSjpUQdkdxXZ9/view?usp=drive_link

A standalone installation of STM32CubeMX could solve the problem. But I'm worried that if the version of the two mismatches there may be some potential problems in future, since STM32CubeIDE auto-updates frequently and the included STM32CubeMX may update automatically. Is there any settings to make MCSDK using STM32CubeMX installed with STM32CubeIDE?

so im trying to run a project example from the stm32h747i disc0 repository from github. specifcally the DCMI project i want to try the camera using snapshot mode or capture mode .when i pen the project and try to build it  i gave this error saying that the lcd.c file is not found in project files(Description Resource Path Location Typemake: *** No rule to make target 'C:/Users/gouiaa/Downloads/en.stm32cubeh7-v1-11-2/STM32Cube_FW_H7_V1.11.0/Utilities/lcd/stm32_lcd.c', needed by 'Utilities/stm32_lcd.o'. Stop)and the file really doesnt exist in this path when i cheked th project folders.  any help please?

As in https://community.st.com/t5/power-management/vn5050aj-cs-dis-not-working/m-p/632201#M10745 we now have added seriel diodes for every chip, but it is still not disabling his Current_Sense Output altough the CS_DIS Pin is above 3V.  The CS_DIS-1 Signal is comming from an 74HC138 so there is just always on VN5050 selected. The same principial is working fine on VND5160. Any advice would be appricatied

Hello, I have a SPI TX DMA, and I need to do the followingStep 1:start the TX DMA ,Step 2:stop the DMA,Step 3: store the NDTR register,Step 4: modify the size of the DMA SPIStep 5: restart the DMA with the new sizeStep 6: and restore the position of the NDTR register to continue (restart) at the same position as previouslyI guess the last step (6) is not possible ? right ? or is there a way to change the current positionI tried to change it using the __HAL_SET_COUNTER but it is not workingDo I miss something ? Vincent 

Hi, I want to operate reader board in CE mode. I posted the question before and I got the resolution from STSW-ST25R016 library. I have more questions about ndef_type_wifi.h file.Looking at the header file, you support it as below, but I would like to check the value of the macro again. Is it correct value?And is the type after the written version not supported? (ex. wpa3, sae, etc.)#define NDEF_WIFI_AUTHENTICATION_NONE 0U /*!< WPS No Authentication (Should be 1, but set to 0 for Android native support) */ #define NDEF_WIFI_AUTHENTICATION_WPAPSK 2U /*!< WPS Authentication based on WPAPSK */ #define NDEF_WIFI_AUTHENTICATION_SHARED 3U /*!< WPS Authentication */ #define NDEF_WIFI_AUTHENTICATION_WPA 4U /*!< WPS Authentication based on WPA */ #define NDEF_WIFI_AUTHENTICATION_WPA2 5U /*!< WPS Authentication based on WPA2 */ #define NDEF_WIFI_AUTHENTICATION_WPA2PSK 6U /*!< WPS Authentication based on WPA2PSK */ #define NDEF_WIFI_ENCRYPTION_NON

Hello, I have a problem with unaligned access, which generates a hard fault when the software is started without bootloader.When running the same software from mcuboot bootloader, there is no hard fault on unaligned access.The MPU and TrustZone configuration is the same in both cases.So I know that CM33 in STM32U5 supports unaligned memory access, since it is working when started from the bootloader. Now the question is, what is the difference? What do I need to do to enable unaligned memory access?SCB->CCR is already set to not trigger faults on unaligned access.The access should go to address 0x30000d8dSCB settings:CPUID = 0x410fd214,ICSR = 0x456803,VTOR = 0xc000000,AIRCR = 0xfa050300,SCR = 0x0,CCR = 0x201,SHPR = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xf0, 0x0},SHCSR = 0x80004,CFSR = 0x1000000,HFSR = 0x40000000,DFSR = 0x1,MMFAR = 0x30018e1c,BFAR = 0x30018e1c,AFSR = 0x0,ID_PFR = {0x30, 0x210},ID_DFR = 0x200000,ID_AFR = 0x0,ID_MMFR = {0x101f40, 0x0, 0x1000000, 0x0}

My question today is kind of simple: I am using the SMPS to supply power to the MCU. Can I also use the SMPS to supply power to a NOR flash chip (W25 by Winbond, the exact chip doesn't matter, but it would be 1.8V with at least 64 Mbit size), and the XSPI I/O to communicate with the chip? Or would this use too much power? I cannot find any info on this.

we have assigned a while condition below the given code, even if the condition is false, or the while condition gets 0, the code also does not execute, it stucked at program counter on while only, if I entered a delay of 1 ms, using Hal_delay after While, then only while condition gets execute, I don't know why after hal delay after while condition it working ok, int I2C_ReadRegForCC3Current(uint8_t reg_addr, uint8_t *reg_data, uint8_t count) { //unsigned int RX_CRC_FailForCC3Current = 0; // reset to 0. If in CRC Mode and CRC fails, this will be incremented. // uint8_t RX_BufferForCC3Current [MAX_BUFFER_SIZEForCC3Current] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};//,0x00,0x00}; RX_CRC_FailForCC3Current = 0; // reset to 0. If in CRC Mode and CRC fails, this will be incremented. #if CRC_Mode { crc_countForCC3Current = count

Hello there!I'm reading the STM32H5 documentation on how to setup the ETH descriptors correctly. At the same time I'm following the HAL for the same H5 series.When the RX descriptors are initialized, I can see the HAL assumes there are 4 descriptors.  /* Set Receive Descriptor Ring Length */ WRITE_REG(heth->Instance->DMACRDRLR, ((uint32_t)(ETH_RX_DESC_CNT - 1U))); /* Set Receive Descriptor List Address */ WRITE_REG(heth->Instance->DMACRDLAR, (uint32_t) heth->Init.RxDesc); /* Set Receive Descriptor Tail pointer Address */ WRITE_REG(heth->Instance->DMACRDTPR, ((uint32_t) &heth->Init.RxDesc[ETH_RX_DESC_CNT - 1])); ETH_RX_DESC_CNT is 4 and so, the ring length is 3. Correct.The DMACRDLAR is also pointing to the correct start. I've created 4 ETH_DMADescTypeDef: static ETH_DMADescTypeDef dma_rx_dscr_tab[ETH_RX_DESC_CNT]; Which I then point it to the respective ETH handle: /* Provides the address of the first DMA Rx descriptor in the

Hi i am using STM32H753z, now i am trying to access SD card  but i getting  some error in stm32h7xx_hal_sd.c file of static uint32_t SD_PowerON(SD_HandleTypeDef *hsd)  API,s  in this /* SEND CMD55 APP_CMD with RCA as 0 */ errorstate = SDMMC_CmdAppCommand(hsd->Instance, 0); (errorstate is 4(return)) if (errorstate != HAL_SD_ERROR_NONE) { return HAL_SD_ERROR_UNSUPPORTED_FEATURE; } it return in HAL_SD_ERROR_UNSUPPORTED_FEATURE is any region to this, if i need to use old SD card is process?    

I am testing DL model on different MCU platform. Is it possible to get the power consumption information?And is there any option to change the clock frequency of MCU? Ritesh

Dear ST technical support.Please can you advise the pin configuration and bus timing (period between active devices) to allow me to connect three of your LPS22HB pressure sensors in parallel on the same SPI bus?The CS pin is used to enable the SPI function on one device but it is not clear if the other SPI pins can be common with other devices.Thanks and regardsDuncan

Hello everyone, I want to measure the current consumption in low power modes on a STM32WB5MMDK discovery board, I would have two questions  :)1) I have clock issues when I want to use MSI clock to have a 2MHz SysClk to put my STM32 board in Low run power Mode, I don't know how to do it then 2) I also wanted to know how to enable and disable the flash memory, because in the datasheet the current consumption in Sleep mode and Low power sleep mode is given when it is On and when it is Off, so I wanted to compare it with the datasheet but I don't know how ? Thank you for any help you can provide! Best regards

Hi! I am developing a project which uses the satel-Vl53l8cx. I found many examples in I2C but none in SPI.The only one would be in VL53L8CX_ULD_driver_2.0.0 but this one was coded for the X-nucleo-Vl53l8A1.   A wiring is shown in AN5945 in SPI but in the CUSTOM->simpleranging folder the example is in I2C. Could this be a mistake? I can't find any example for my satel-vl53l8cx in SPI.ThanksAntonin