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Hi there,is there any installation guide on how to use functions of the mbedTLS library (sha256, ecdh, ecdsa, ECC key generation) on a stm32f767zi with TrueSTUDIO as an ide?Thank you for your help. WorkingStudent

Hi,I need to generate a special waveform via DAC on a STM32F446. DAC samples must be generated at about 240kHz but with minimal jitter. A DMA channel with timer trigger will provide the data from internal RAM or flash. What best case - minimal - jitter can I expect on my output signal (between two DAC samples)? I expect jitter to be caused by STM32 internal arbitration etc.Matthias

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Hello, I have an STM32F407G-DISC1 and it has not been fun. when I try to plug it into my PC it always goes to Unspecified in Device and printers. i have tried this on 2 pcs ant the same thing happens. Thank you if you read this!

I'm looking for the appropriate MCU to include as a main processing unit in a DAC product I'm designing. The product uses an XMOS for USB Audio and is in need for a central CPU with a more approachable programming model. I came around choosing between F4 and F7, because along with user interface tasks and housekeeping, the MCU will have to handle the SPDIF/RX signal input - I'm not keen on adding S/PDIF routing into XMOS I2S routines. I understand the F7 is substantially more powerful than the F4, so this begs the question: can I ditch the XMOS altogether and port the USB Audio Class to the F7? I mean does this part have the processing power to keep up with an audio signal that is 192k/32b?Another tricky one: the SAI port on the F7 does not support DSD, which in it's faster iterations can go up to 11MHz on the output. Do you think it is possible to output that sort of signal out of an F7? Some designs out there use CPLDs connected to the CPU to achieve DSD, would that be the case here?

I'm sure everyone else has noticed how the two pins to VCAP seem to be placed just over a complete side of the package away so there is bound to be some resistance/inductance in the tracking. I was wondering if anybody has ever hit problems with this, or how thick the tracking should be. Also the datasheets and app notes seem a bit inconsistent, some say 2.2uF, some two 2.2uF in parallel and others 4.7uF. Prefer to get the board right first time. Processor is a STMH7 series in 100 pin QFP

Currently I'm working with the Mini Usb cable, but debugging doesn't work properly... on YouTube I didn't find a video that helped me. Because although I did everything exactly like in the video, the program doesn't jump to the beginning of the program at the beginning of debugging. Maybe someone can help me?In the videos the yellow arrow was always in the Command Window and not in the Disassembly Window...Furthermore I don't know how to check my variables I've changed... I add the variables to the Watch but I don't get anything reported.Thank you in advance!Best regardsRebecca

Hi all,I am looking for Gnu C linker scripts. I found linker scripts inside the Cube bloatware after waiting 2 hours for the download to finish (yes, not everybody has Gigabit internet) but:they don't work with GCC. For example __data_start is not defined (STM32L151XC).They have an Atollic copyright inside !?! Use is only permitted with the Atollic TrulyCreepingStudio software which is an absolute no-go area for me.So where can I find just the register files and linker scripts for a specific CPU?Any help would be appreciated.Kind Regards,

Hi,I'm working with the Software "STSW-ST25DV001" for the ST25DV Discovery Kit as part of my seminar paper. Unfortunately I can't enable the FTM Mode. I'm a little bit confused because the FTM Demo of the Software enables the FTM, but I can't find the specific code in the project. Can anyone help me?I found the following function in the Code "ST25DV_i2c_WriteMBMode" but after checking the pMB_mode with the debugger of Keil uVision 5 the value of pMB_mode hasn't changed after execution the function. Thank you in advance!Best regardsRebecca

I am trying to read nfc cards with X-NUCLEO-NFC03A1 plugged on top of NUCLEO-L476RG. However, in the X-CUBE-NFC3 ver. 1.4.0 there is no example for such combination, but according to UM2045 Rev 2 ("The software comes with examples of implementation of such drivers, running on X-NUCLEO-NFC03A1 plugged on top of one NUCLEO-L476RG, NUCLEO-F401RE or NUCLEO-F103RB. ") somewhere should be such an example.Could you please point out exactly where this example project can be downloaded?Thanks in advance!Linards

I try to change the user area 1 protection to read only (from RF).I'm doing that by i2c. but something wrong, it doesn't matter what I try to update it always changed it to 6b:00000000 88 00 01 00 6b 0f 6b 0f 00 0f 6b 6b 00 00 07 00 |....k.k...kk....|   00000010 00 00 00 00 7f 00 03 24 63 1f 03 15 00 24 02 e0 |.......$c....$..|   00000020 12 ff ff ff |....|   00000024the cmds:echo -n -e \\x0c > /tmp/reg.bin dd if=/tmp/reg.bin of=/sys/devices/13890000.i2c/i2c-3/3-0057/st25dv_sys bs=1 count=1 seek=4

Hello!I have some strange behavior with STM32L0 processor.I get Hard fault error in my function and I can't understand why this happens?!I have equivalent codes - one of them works and other doesn't work causing Hard fault error.Also this happens only when function is called with parameter mCopy=2.I use SystemWorkbench for STM32 IDE.I have attached these two codes - working and problematic code.Would you please help me!Thank you!

I can store variables in flash memory location successfully but what is happening is updating that variable in main.c file not happening.I'm posted code what i have done below. Linker script file :MEMORY{RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 320KFLASH (rx) : ORIGIN = 0x8000000, LENGTH = 153MY_VARS (xrw) : ORIGIN = 0x08005000, LENGTH = 1K // storing in flash memory}.my_vars :{*(.MY_VARS*);} >MY_VARSIn main.c file :__attribute__((section(".MY_VARS"),myvars)) uint32_t *value=8;int main(){int a =sum(); //i have a sum function of two numbers and storing in variable 'a'value =&a; // value should updated to sum but it is not updatingreadaddress=(const volatile uint32_t *)0x08005000;// reading flash memory printf("Read flash address %lu\n",*readaddress);// printing the data which is stored in value ,it is printing everytime 8 but it should print variable data which stored in 'a'.}int sum(int a){int a=1, b= 34 ;a=a+b;return a;}Can anybody help me to figure this out,i hope u

Hey everyone,I've got a weird issue.I'm running a multibuffer DMA and although everything works well at a point, I'm terminating the DMA transfer.It's a multibuffer DMA moving data from GPIO IDR to SRAM.When an interrupt is triggered, I should stop the transfer, look at what the current memory target of the DMA is and move the remaining data to an sdcard (as indicated by the NDTR register)Here's the code:void EXTI3_IRQHandler(void) {   //Deactivate ADC HAL_GPIO_WritePin(GPIOG, GPIO_PIN_15, GPIO_PIN_RESET); HAL_GPIO_WritePin(GPIOC, GPIO_PIN_4 | GPIO_PIN_5, GPIO_PIN_SET); HAL_GPIO_WritePin(GPIOB, GPIO_PIN_0, GPIO_PIN_RESET);   //Stop DMA transfer __HAL_TIM_DISABLE_DMA(&htim8, TIM_DMA_CC2|TIM_DMA_CC3); __HAL_TIM_DISABLE_IT(&htim8, TIM_DMA_CC2|TIM_DMA_CC3);       volatile int datatowrite; //Determine current memory target if (((hdma_tim8_ch1_ch2_ch3.Instance->CR) && 262144) == 0) { //memory target 0 -> determine amount of data left

Hello,I am using an STM32L4R5VIT6 board in which I am programming it with Atollic TrueSTUDIO using the debugger and Jlink connectiong. When I am running the debugger, it suddenly stopped working for me and the console reads:Connecting to J-Link...  J-Link is connected....Connected to target  Waiting for GDB connection...Connected to 127.0.0.1  Reading all registers  GDB closed TCP/IP connection   Restoring target state and closing J-Link connection...   Shutting down...Comparing this to another board where the debugger is working fine, it seems to be that it stops working at the "read all registers" section. I have tried connecting another board and found it works fine, so it must be hardware related. Is there anything with the this ST32 board that might prevent the registers from being read? (Note: I have tried error 2.2.1 of the errata sheet)

I am evaluating the ST25DV series using the ST25DV-DISCOVERY and the ST25 Android NFC tap application.I accidentally set the LOCK_CFG register of the ST25DV to 1 (locked) via RF by the Register Management of the NFC tap app, and then the system configuration was locked.  Now I need to change the system configuration.  According to the ST25DVxxK datasheet, it is impossible to set the LOCK_CFG register from 1 to 0 (unlocked) via RF, and this register is required to be written via I2C.  However, it appears that the ST25DV-DISCOVERY does not have UIs to unlock (set the LOCK_CFG register from 1 to 0) via I2C or to factory-reset the register.Please let me know:- at the ST25DV-DISCOVERY alone how to unlock via I2C or to factory-reset the register.- PC applications if the PC applications connecting to the ST25DV-DISCOVERY with USB cable can unlock or factory-reset the register.- other methods if the above two are impossible.Thank you in advance.

I just run across a bug when trying to program the flash.You have to write two 32bit values for programming the flash. But if the first value is 0xFFFFFFFF it does not matter what the second value is. In the end there will always be written 0xFFFFFFFF.If you change just one bit of the first value, everything works as indended.The interessting thing is, if you wait for programming to be finished and then compare the values in flash and the data which should be written, they are the same. But if you do this compare some cpu cycles later they are not the same anymore?!I tested this on an own board with a STM32L496ZE and on a nucleo board with a STM32L496ZG.I attached the example project (for AC6 IDE) with which I tested this.

I am currently in a process of selecting micro controller for my project. Basically i need TTCAN support and i have STM32F746G Disco board with me. Now as per the ST reference manual i see that this is supported. Now my questions are...Is there any reference available for TTCAN implementation?If the HW supports TTCAN, can i completely rely on HW module? ex: who will generate reference message(defined in TTCAN spec) ? HW or my SW? 3.Can i make STM32F746G as master of my TTCAN cluster ? Unfortunately i could not find much details in the internet and the ST reference manual. If anybody has prior knowledge of working on this topic please do respond.Thanks :| !!

Hi!!I'm using lcd_log.c to debug on the LCD.LCD_UsrLog ("This is Line% d \ n", i);Is there a way to change the starting position of text output?It always starts at the same location and scrolls down.Please, help me!!

I am attempting to ​setup the TouchGFX on a 32F746DISCOVERY Board with CubeMX and SW4STM32.When I create the Board project in CubeMX, the stm32f7xx_hal_conf is empty. I would have expected that the Peripherals would have some initialization code setup by Cube, but I am new to Cube so perhaps someone can point out if stm32f7xx_hal_conf needs to be setup by me or if its a bug in Cube.ThanksMartin 

Dear ST team,I know that you can not provide Mifare Classic implementation for ST25R391x chip, but I am really having trouble on implementing it by myself. Could you please, provide any similar example, that I can use as a starting point? What I already did is selecting card using iso14443ASelect function and reading card info into iso14443AProximityCard_t structure. After that I am trying to perform authentication of memory block 0 using rfalTransceiveBlockingTxRx function, but I never receive anything back from card. Do I miss a step between these procedures? Do I use correct function or should I use another one for transmit/receive? Any help would be appreciated. Thanks in advance.Best regards,Van

Hi,I use the b-l072z-lrwan1 to make lora advertisment and it's work.I use the project AT_slave or END_Node.But i want to use the second uart USART1 and nothing work in the environment.If i just change the file B-L072Z-LRWAN1\Applications\LoRa\End_Node\Core\inc\mlm32l0xx_hw_confThe program launch but nothing appear on the UART.I make a project with 2 UART with STM32CubeMX and both work great (it's not a hardware problem)Someone could help me?

Please let me know the related Youtube link or website.

Hi,I'm looking for an STM32 evaluation board with dual CAN bus ports (transceivers / DB9 connectors) on board.Does anyone know of any ?

I am using truestudio and cubemx with STM32F103C8T6. I am trying to use canbus. If I connect the cantx and canrx pins on A12 and A11 (as shown in attached cubemx file), I get an output that looks like a can frame, but has peak voltage of 400mV.cubemx file and a zip of project is attached, does anyone have any idea what could be the problem?there were some resistors for usb on the board, but I removed them. I am programming with stlink v2 with swdalso, it is running at something like 83 kHz. I used this (http://www.bittiming.can-wiki.info/) website to calculate values, but I'm not sure what to put for clockrate since cubemx clock configuration doesn't mention canbus anywhere and looking at all the datasheets and guides I could I couldn't figure out what clock the canbus uses.Does anyone know where I can find what clock the canbus is using?