Solved

I'm not an embedded Dev by any means, just trying to throw together a low energy project and I've been racking my head around this for a few weeks now, I can't get the STM32L0 to communicate with my VL53L1X via the provided API.I'll post code snippets here shortly, but I've been able to communicate with it with the HAL read/write commands and do not get a HAL_ERROR (confirmed by altering device address and the HAL_ERROR was returned).I'm able to run all of the API methods without getting an error status code but when I go to actually read the measurements it's negative, completely off (100s MM off) and it will always return the same measurement regardless of clear interrupt and start measurement.If anyone has some insights into this let me know. I've ordered a logic analyzer to ensure that the API is actually doing anything with the sensor.Also if anyone knows where I might be able to find any resources to using this sensor via HAL commands instead of the API that would be great. Only

Hey, I recently ordered an ST25R3916-DISCO board for communicating with ST25 RFID tag antennas. I connected the board to my PC via the micro-USB cable and was able to detect my antenna via the R/W feature on the MCU. Furthermore, I downloaded the ST25R3916 discovery GUI software on my PC to obtain the RFID communication data (specifically RSSI values) on the computer. However, the software UI is grayed out and is not recognizing my board. I looked up the user manual for setting up the ST25R3916-DISCO board and it specifies installing the "DISCO_STM32L4x6.hex" firmware file. However, I am not able to locate the file in the installation directory. The file that I have in the firmware directory is "ST25R3916Demo_MB1414B_v1.2.0.hex". I also downloaded the "STSW-ST25R011" file which is the firmware for the ST25R3916-DISCO board, but couldn't locate the firmware file in there as well. Please let me know how I can get the discovery GUI to identify my board.

What is the default value of user memory and where is this stated in the datasheet for the ST25DV NFC EEPROM chip?

Errors are:1) C:/Users/info/STM32CubeIDE/workspace_1.7.0/TouchGFX/Gui/gui/src/audio_player_screen/AudioPlayerPresenter.cpp:102:12: error: 'char* strncpy(char*, const char*, size_t)' specified bound 50 equals destination size [-Werror=stringop-truncation]2) C:/Users/info/STM32CubeIDE/workspace_1.7.0/TouchGFX/Gui/gui/src/audio_player_screen/AudioPlayerPresenter.cpp:266:12: error: 'char* strncpy(char*, const char*, size_t)' specified bound 50 equals destination size [-Werror=stringop-truncation]3)C:/Users/info/STM32CubeIDE/workspace_1.7.0/TouchGFX/Gui/gui/src/audio_player_screen/AudioPlayerPresenter.cpp:550:20: error: 'char* strncpy(char*, const char*, size_t)' specified bound 50 equals destination size [-Werror=stringop-truncation]4)C:/Users/info/STM32CubeIDE/workspace_1.7.0/TouchGFX/Gui/gui/src/audio_player_screen/AudioPlayerPresenter.cpp:138:12: error: 'char* strncpy(char*, const char*, size_t)' output may be truncated copying 40 bytes from a string of length 49 [-Werror=stringop-trunc

The STM32L5 reference manual states that there are "4 Kbytes of option bytes for user configuration" accessible via the Flash register interface (section 6.3.1), but no further details are provided on how to access that space for user data storage.I found a question here, which answers this question for another chip (STM32F0): https://community.st.com/s/question/0D50X00009XkfPkSAJ/simple-example-program-to-read-and-write-option-bytes-on-stm32f042k6-using-hal-librariesMy problem is, the STM32L5 HAL code (1.4.0) doesn't define the HAL_FLASHEx_OBGetUserData function, or even the OPTIONBYTE_DATA type.How is the option byte flash page for user configuration accessed on the L5? Is this actually a supported feature?Thanks!

When creating a new Freertos Task like this: osThreadNew(StartDefaultTask, NULL, &defaultTask_attributes);prvAddNewTaskToReadyList(...)will be called and uses taskENTER_CRITICAL()to disable interrupts. This breaks down to the call of void vPortEnterCritical( void )void vPortEnterCritical( void )which increases uxCriticalNesting by one.Before leaving void vPortExitCritical()is called. This function should decrease uxCriticalNesting and reactivate interrupts if uxCriticalNesting == 0.However, uxCriticalNesting was previously initialized with  0xaaaaaaaa. So that uxCriticalNesting == 0 is not reached.A later call of osKernelStart();finally sets uxCriticalNesting to 0 and reactivates all interrupts.This results in deactivated interrupts between the first task creation and kernel start, which has undesirable side effects such as the systick timer being stopped, which results in a broken HAL_Delay() function.

Hi all,Referring to previous discussion I had.I just want understand what are the PWM limits for STM32MP1.I can't seem to generate PWM signal below 100ms. Any inputs will be appreciated.My target frequency is 1KHz.https://community.st.com/s/question/0D53W000014y9ZzSAI/maximum-value-of-pwm-period

Greetings!I'm trying to update my STM32CubeIDE 1.6.1 to the newest version but I get the following error:More details are here: https://pastebin.com/NpDgAkMQDoes anyone know the solution to this besides reinstalling everything?BRDomagoj

Hi all,I have configured TIM1_CH3N as a pwm channel.I am trying to do some PWM functionality here.I am following current tutorial here. When i tried to provide a period of 10 sec it fails to take up the value. I get following error :root@stm32mp157a-visionsom-rgb-emmc-mx:/usr/local/firmware_demos# echo 10000000000 > /sys/class/pwm/pwmchip4/pwm2/duty_cycle pwm2 sh: write error: Invalid argument100000000Is there some limit to what value we can provide here?

Good morning,I'm designing a board based on ST25RU3993-HPEV development board. I'm finding some problems in understanding which oscillator to use. On both schematic and dm00717148 is said that only one oscillator between XO and TCXO should be used but on the (as bought from ST) board I have they are both connected, how is it possible? Did anyone has the same problem?Thanks

Im trying to configure RTC for periodic autowakeup, and have no clue why it is now working properly. RTC_WKUP_IRQHandler called immediately and again and again, even though wakeup flag is cleared, resulting 2.4 MHz at LED2 (LED2_GPIO_Port->ODR ^= LED2_Pin;)void RTC_Init(void) { RTCHandle.Instance = RTC; RTCHandle.Init.HourFormat = RTC_HOURFORMAT_24; RTCHandle.Init.AsynchPrediv = 127; RTCHandle.Init.SynchPrediv = 255; RTCHandle.Init.OutPut = RTC_OUTPUT_DISABLE; RTCHandle.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH; RTCHandle.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN; RTCHandle.Init.OutPutRemap = RTC_OUTPUT_REMAP_NONE; HAL_RTC_Init(&RTCHandle); HAL_RTCEx_DeactivateWakeUpTimer(&RTCHandle); HAL_RTCEx_SetWakeUpTimer_IT(&RTCHandle, 1, RTC_WAKEUPCLOCK_CK_SPRE_16BITS); } void RTC_WKUP_IRQHandler(void) { LED2_GPIO_Port->ODR ^= LED2_Pin; if (__HAL_RTC_WAKEUPTIMER_GET_FLAG(&RTCHandle, RTC_FLAG_WUTF) != 0U) { __HAL_RTC_WAKEUPTIMER_CLE

Hello,I created a simple project for a board NUCLEO-F303RE enabling USART2 and DMA for transmit and I believe there is a bug in the code generation that doesn't configure properly the peripherals.The generated code has: /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_USART2_UART_Init(); MX_TIM2_Init(); MX_DMA_Init(); MX_USART3_UART_Init(); /* USER CODE BEGIN 2 */Then the MX_USART2_UART_Init has: /* USART2_TX Init */ LL_DMA_SetDataTransferDirection(DMA1, LL_DMA_CHANNEL_7, LL_DMA_DIRECTION_MEMORY_TO_PERIPH);   LL_DMA_SetChannelPriorityLevel(DMA1, LL_DMA_CHANNEL_7, LL_DMA_PRIORITY_LOW);   LL_DMA_SetMode(DMA1, LL_DMA_CHANNEL_7, LL_DMA_MODE_NORMAL);   LL_DMA_SetPeriphIncMode(DMA1, LL_DMA_CHANNEL_7, LL_DMA_PERIPH_NOINCREMENT);   LL_DMA_SetMemoryIncMode(DMA1, LL_DMA_CHANNEL_7, LL_DMA_MEMORY_INCREMENT);   LL_DMA_SetPeriphSize(DMA1, LL_DMA_CHANNEL_7, LL_DMA_PDATAALIGN_BYTE);   LL_DMA_SetMemorySize(DMA1, LL_DMA_CHANNEL_7, LL_DMA_MDATAALIG

Hello,I'm using a STM32G0B1CC and I'm trying to remap address 0x00000000 to SRAM like this: __HAL_RCC_SYSCFG_CLK_ENABLE(); __HAL_SYSCFG_REMAPMEMORY_SRAM();Unfortunately this does not work and 0x00000000 is still mapped to FLASH.If I try to remap to system memory it works just fine: __HAL_RCC_SYSCFG_CLK_ENABLE(); __HAL_SYSCFG_REMAPMEMORY_SYSTEMFLASH();Remapping back to FLASH is working just fine, too...This is just baffling me because this just works with my original application using the STM32F030CC. Is there a restriction related to remapping SRAM?Thank you for your kind help!

Hi,We are thinking to use the ST25R3911B for one of our products but we don't see any way or documentation to upgrade its firmware in cases when ST publish a new firmware that fixes any bug or a new version that improves anything. Is there any way to update its firmware? If yes, where is the documentation of how end user can upgrade it? Thank you

MCU is STM32L0.The file I use to program has option bytes added with read-protection turned ON. :020000041FF8E3 :0C0000000000FFFF7A80857FFF0000FFFA :00000001FFUsing ST-link V3, I'm having this error: (see attached screenshot)  Command line:stm32_programmer_cli -c port=SWD freq=8000 mode=UR -d "%FILE%" -vIt was ok if I use ST-link V2 with this command:st-link_cli -c SWD FREQ=4000 UR -P %FILE% -V while_programming

I am using the Bluepill board. I want to generate PWM signal on Timer2 and set up a timer interrupt at 20ms interval on Timer3. I realized that the PWM signal cannot be generated if I set up the timer interrupt on Timer3. How do I solve this problem?

This has been a reoccurring issue for me, whenever I raise the ADC frequency above 0.25MHZ the while loop gets interrupted, and when I use frequencies below that the ADC resolution drops to 8 bits for an unknown reason. Is there a way to fix this without having to use poll for conversion or IT?note: I'm using cubeIDE./* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body ****************************************************************************** * @attention * * <h2><center>© Copyright (c) 2021 STMicroelectronics. * All rights reserved.</center></h2> * * This software component is licensed by ST under BSD 3-Clause license, * the "License"; You may not use this file except in compliance with the * License. You may obtain a copy of the License at: * opensource.org/licenses/BSD-3-Clause * *************************************************

Hello guys,I was setting up my STM32CubeIDE to use the SBSFU sample projets. I'm facing a issue with SECore engine, more specific the postbuild.sh script.When i compile SE, i get the following message:ln: failed to create symbolic link '../../postbuild.sh': File exists.ln -s ./SECBOOT_ECCDSA_WITH_AES128_CBC_SHA256.sh ../../postbuild.sh : failedAnyone know how i could solve this?

I am trying to develop an automated test script in python to test embedded software running on the STM32L496RG which resides on a custom PCB. To do this, I am trying to utilize the ST headless GDB debugger and the headless build utilities. This particular test requires me to have to make slight modifications to the source code (via python script) during the test, which I have been able to do successfully.When I run the automated test script I am able to modify code, rebuild the program, and execute a test step, which always seems to work the first time within the test, but never after that. I then have to disconnect the debugger and possibly even power cycle the MCU in preparation for the next test step where I need to modify more code. After modifying the code the second time and rebuilding, I attempt to startup the debugger, which is connecting with the target successfully (or so it seems). I verify this by confirming that the gdb server connects with the target, then the gdb client

I learned from section 2.5.7.2 of the STM32CubeIDE user manual that it can be done by modifying the .ld flie and .s file and using __attribute__((section(".RAM_Code"))) declaration functions. But i still confuse in modifying the .s file. I wonder how to add these code into the .s file

Hi,I'm currently checking for alternative for the MCU a that is part of a pcb we use. For the future, we want to store an alternative chip for all electronics. As far as I know, this is very easy for the automotive power pc SPC5 MCU because this IP has a variant of ST and NXP.The question now is to what extent I can see how two chips are compatible in terms of function and pin layout.In detail, it's about the two chips:MPC5604CF2MLL6(of NXP) and SPC560C50L3C6E0X (of ST).Thank you,Regards.Lars Mueller

I run code from Low and Mid address space and write to High address space in Flash C90LC. If I have interrupts enabled during write, the MCU frequently locks up.

Hi,I am using the STM32WB55 Nucleo Board and am trying to characterize the current consumption of the board using the BLE HeartRate example. For this, I want to send 20 bytes in the advertisement data packet. How do I set the length of the advertisement data? Or how should I go about changing the advertisement data length? Any insights would be appreciated.Thanks,Josh

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