Solved

When trying to read/write to the connected eMMC device, the eMMC driver will sometimes fail with an error. After failing in this way, every call to HAL_MMC_ReadBlocks or HAL_MMC_WriteBlocks will fail until the microcontroller is restarted. If the first call in a series of reads succeeds, all following calls will complete without issue *UNLESS* the following calls are to a non-sequential part in eMMC memory, in which case they might fail.A partial work-around I’ve found is to put HAL_Delay calls before each call to the eMMC memory, but this does not always work. Similarly, running in debug mode and walking slowly through the process will always work. And then following calls at high-speed run without issue.The HAL_MMC_GetCardState function always returns a 4 - HAL_MMC_CARD_TRANSFER. If I try to wait for the cardstate to become HAL_MMC_CARD_READY before making a call, it will stall indefinitely. My hypothesis is that the stm32l5xx_hal_mmc driver is not correctly

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Hello again dark electronics wizards.I've been looking for some documentation about how to use an external flash memory with my stm32 designs.Is there any magic way to do this? Or could anyome point me to the right way?My goal is to add a qspi controlled flash chip instead of a sd card for my mass storage usb thing.Many thanks in advanceCheers

I Use STM32CubeExpansion_NFC6_V1.1.0 for emulate card with NUCLEO-L053R8 and X-NUCLEO-NFC06A1.I Try NDEF URI card emulation with sucess.I don't find a example code for NDEF Text emulation card. Does anyone have a example code for NDEF Text Emulation card ?Best Regards.Mickaël

We have a custom board based on the stm32mp151 that shall boot from emmc. I can flash alright, but when I switch the boot pins, the boot device remains on usb. I can see from arch/arm/mach-stm32mp/cpu.c, that boot_device is set to usb, here is the debug line:setup_boot_mode: boot_ctx=0x2203 => boot_mode=22, instance=1 forced=3when I break into u-boot, and manually set boot_device to mmc, it works. Also, it does not seem to pick up the default environment:CPU: STM32MP151CAC Rev.Z Model: STMicroelectronics custom STM32CubeMX board Board: stm32mp1 in trusted mode (st,stm32mp151c-0068-new-linux-mx) DRAM: 128 MiB Clocks: - MPU : 650 MHz - MCU : 208 MHz - AXI : 266.500 MHz - PER : 24 MHz - DDR : 533 MHz STM32Programmer key pressed, entering download mode... WDT: Not found! NAND: 0 MiB MMC: STM32 SD/MMC: 0 Loading Environment from MMC... MMC Device 1 not found *** Warning - No MMC card found, using default environment   In: serial@40010000 Out: serial@40010000 Err: serial@40010000 set

Hi, I included the VL53L0X API from ST in a STM32G4 STM32CubeMX project. Now I need a example of how to use the API to init the VL53L0X and do a simple range measurement. I'm using the Arduino VL53L0X module.

Is it possible to receive a GPO pulse when an NDEF message is being read by an NFC reader, such as a smartphone? I thought it was possible by configuring the GPO field to RF busy (0x6X) and connecting the GPO port to a GPIO port of my MCU. However, the GPO does not change its output when the NFC reader is reading the tag. Am I right? If so, what may I doing wrong?Thanks for the help!

Hi,I have been reading through documentation for the ST UART bootloader on the STM32F091cc chip. I want to use UART2 as my UART for both standard serial communication and FW updates.UART2 can use pins (PA2,PA3) or (PA14, PA15). I would like to be able to use PA2 and PA3 because PA14 overlaps the SYS_SWCLK and I would like to be able to use SWD and UART at the same time.I have successfully talked to the bootloader over PA14 and PA15, and there is a discrepancy in documentation that is making me hesitant to move to PA2and PA3. PCB is not easy to hack up or else I'd jump some pins and try.This is from the AN2606 Application note and mentions both pin sets for the STM32F09xxx device bootloader.This is from the STM32F091xC  data sheet. It only mentions PA14/PA15.Does anyone have any idea which one is correct? Could you use both pin sets for UART2 to talk to the bootloader? Or only the PA14,PA15 set?Thank you for your help.

Is it possible to create an UI template just like examples of TouchGFX Designer?

Hello,I'm working on a NUCLEO-G474RE board (using the LL libraries available on ST site), and I came across an issue, the USART3 available on the PB10 and PB11 is not working. I tried to generate the same code from the CUBEMX as well but unfortunately, no successful outcome so far. In the "User Manual" of this Nucleo board, nothing is specifically mentioned (Jumper settings) regarding the USART3 settings. On the other side, the same USART3 available on PC10, PC11 is working fine and well. As my costume-made boards are already in the fabrication process, could someone please tell me if this issue is related to the Nucleo board or the STM32G4xx series controller?I'm attaching a code snippet and Nucleo/ Datasheet referential image.@Community member​ @Imen DAHMEN​ @Community member​  /* ---------------------------------------------------------------------------- * Includes * ---------------------------------------------------------------------------- */   #

Hello,I tried to open and test a LoRaWAN example for the STM32WL, Nucleo-6344 board but it returned an error message shown in the attachment.Can you advise, please?Thanks,Mohammed

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Will all or any battery charger ICs such as L6924U operate properly with rectified AC input?The rough circuit below is of a bicycle dynamo that delivers 300mA-500mA of varying AC frequency and current ripple will this prevent the charger controller from working properly? https://photos.app.goo.gl/7W1iKxkfDLhZqULw6

Hello.I have a STM32 Nucleo board and a USB dongle. What Stack and FW should be programmed to use STM32CubeMonitor-RF 802.15.4 RF test mode described in chapter 5 of the UM2288?Thanks.

Hi, my problem is that when I use the dynamic graph, when it ends on the X axis, but unfortunately the X value increases How can I solve this problem and start the X axis again from scratch?

Will IC such as L6924U operate with AC ripple on the power input? That is as if the power input were rectified AC with no reservoir capacitor?I posted this before but can not find the post now? Sorry for duplicating the question if it is duplicated.

I need to make application of pressure measurement across time by using dynamic graph feature. The X axis is time from 0 - 10 s. But as times go by beyond 10s, I want the X axis label remain as 0...10s instead of incremented for every data point added i.e. addDataPoint(float newData)How to do this?

Let know what is procedure to get PID with particular MCU part number is STM32F103, so we can used it for the mass production as our own PID. let me know how can i process it to buy PID.

I'm using the ST25R3911 kit, to create code then read continuos information by ISO14443A protocol.I have another board ( SIC-4310) then send me continuos information, when I trying to read I lost some packages, for example, I send 64 bytes each package with one number until 0xFF : sending ( Payload in hex) | Received ----------------------------------------------------|---------------------------------------------------------------------- 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 | 1a 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 | 1a 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 | 1a 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 | 1a 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 | 1a 12 12 12 12 12 12 12 12 12 12 12 12 12 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 | 1a 15 15 15 15 15 15 15 15 15 15 15 15 15 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7

Hi. I was trying to test my code to see if I have enough stack. I realized in my project's .ld file stack size is defined as: _Min_Heap_Size = 0x200;_Min_Stack_Size = 0x400;However, I tried to test this to see if stm32cubeide gives error when I tried to exceed defined memory size. I declared a local variable inside a function and checked stack pointer. When I call my function inside main, stack pointer seems to go somewhere it shouldn't. For example 0x1FFFFFF6 which is memory domain for code segment and not SRAM. Same thing happens when I declare a local variable inside ISR.My question is why stm32cubeide do not throw an error when I pass the defined stack size? Do I have to test max occupied stack for each code manually?Thanks.

Hi,I am running into some problems with generating new code for my MCU (STM32G474RBT6).I have installed STM32CubeIDE v1.6.0 and FW pack v1.4.0.I have created my entire pinout with a correct setup (my friend checked it and he is working with these MCUs on profesional level)Problem is that code does not contain parts for USB CDC.Everything is generated correctly but there are no:usb_device.cusbd_cdc_if.cetc.Looking forward for any help.With regard,Martin V.

Hi all,Just started with bare metal programming of stm32f411re.Uploaded the following code to blink the onboard led of the nucleo board.Code:#include "stm32f4xx.h"         // Device headervoid delayMs(int delay);int main (void){RCC->AHB1ENR |= 1;GPIOA->MODER |= 0x400; while(1) { GPIOA->ODR = 0x20; delayMs(100); GPIOA->ODR &= ~0x20; delayMs(100); }}void delayMs(int delay){ int i ;for(; delay>0; delay--) {for(i=0; i<4000; i++); }}The above code had my led lit but it was very dim. While running the debugger, I found out that my code skips the delay function call.So, I tried including a for loop as a delay directly in the while loop instead of having a separate function, but still it bypasses the statement and executes the next.What change should be done here to get the code working?Thanks in advance.

Hello, when I use handleDragEvent and handleClickEvent, widgets such as buttons and sliders that need to be clicked and dragged no longer work. How can I solve this problem?

For STM32G0B1RET6 (512 kByte):DUAL_BANK and (n)SWAP_BANK not present under "Option Bytes"Only pages 0 - 127 (i.e. 256 kBytes) shown under "Erase & Programming", where are the remaining pages?For STM32G0B1CCU6 (256 kByte):DUAL_BANK and (n)SWAP_BANK not present under "Option Bytes"Again pages 0 - 127 visible (i.e. 256 kByte, this time it's correct) under "Erase & Programming"