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In RM it is stated that in Engineering mode (BOOT pins at 3'b100) the MPU re-opens CA7 secure debug.I boot in that mode, then halt in openocd:stm32mp15x.cpu0: hardware has 6 breakpoints, 4 watchpoints > halt stm32mp15x.cpu0 rev 5, partnum c07, arch f, variant 0, implementor 41 target halted in Thumb state due to debug-request, current mode: Supervisor cpsr: 0x200001f3 pc: 0x00010fc0 MMU: enabled, D-Cache: disabled, I-Cache: enabled > mdw 0x5c005014 0x5c005014: 0000000fIn BSEC register 0x14 (DEBUG) there is 0xf - which means unsecure debug is enabled,but secure is disabled. Also MMU is enabled and 0x2ffc0000 is RO and 0x10000000 unmapped.Thus I can't upload and run A7 code via JTAG.Is it correct ? Is the only way to upload some code to new MP1 board only via USB/serialbootloader ?I ask because typical way for STM32 MCUs was to use Openocd to send some stub codefor Flash programming of new part but it doesn't seem to work here.Only way I found is to upload fake code via USB, break

Hi All,Currently, I'm working on project wherein I need the maximum number of UARTs I can get. After doing some research, I came across the STM32F091VC controller which has the 8 UART (max number of UARTs ST can provide). Unfortunately, there is not a single eval-board/ discovery/ nucleo board which has this controller with all UART's pin out on connectors. Hence, before I proceed with my own hardware design, I wanted to know, whether I can use all the 8 UART without any issue, or I've to use some sort of management to use all of them together. Any tips regarding board design, information regarding previous issues, or the link of other references would be highly appreciated. Regards,Aatif Shaikh

Hi,Do you know when the STM32G0316-DISCO will be available for buying?

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I'm evaluating the STM32WB55 for use in a product which needs to read user input (button press and associated sensor data), and communicate it to another device over BLE. I'm using a pair of STM32WB55 Nucleo boards to communicate with each other over BLE. I'm using the BLE_p2pClient and BLE_p2pServer example programs as a starting point. I would like to reduce the latency as much as possible for sending notifications between the 2 boards. Currently, I'm able to start both boards and establish a connection between them. The example code is designed such that when you press a button on one board, an LED on the other board changes state. Using a logic analyzer to measure the delay between the button press and the LED changing, I'm seeing times that range from ~70ms to 150 ms. I'm trying to understand what parameters can be changed within the code to affect this time. I see that BLE has a connection interval spec that can range from 7.5ms to 4s. I b

Hi,I have a ethernet project running on a H743 and H753. The H743 is working fine. The H753 is not working.If the ETH_MAC clock is enabled I can see that the SWR bit in the DMAMR is set (software reset) and as soon as the RMII is selected as interface ( HAL_SYSCFG_ETHInterfaceSelect(SYSCFG_ETH_RMII); ) the SWR bit is reset by hardware. However, at the H753 the SWR bit is not cleared and the HAL driver will fail because of this sticked SWR bit.I have checked if all clocks (ETH_TX, ETH_RX and ETH_MAC) are enabled and this is the case. What is going wrong?

Is it possible to select NO startup screen in an application with TouchGFX Designer?​Because I want to show no screen at the beginning until other initialisation-routines are processed.

If the target folder is changed to "Programs - System folder" during the installation, then the error message "No spaces allowed" appears!Is there a way to install there anyway?

I didn't find the topic about "Secure MCUs", so I posted the question here that relative to NFC.In the Secure NFC (https://www.st.com/en/secure-mcus/secure-nfc.html) section, there is a video on the bottom of the page, named "NFC secure mobile point of sales". In the video, the speaker used a smartphone to scan the credit card to complete a purchase through NFC, I wonder what roles the Secure NFC played in this demo. Actually I can implement the same function through the normal embedded NFC without the Secure NFC.

Hello,I'd like to connect EEPROM slave to I2C2 of STM32F767 MCU. EEPROM's supported clock is 1MHz. With 25 MHz HSE, I only managed to setup PCLK to 1.5625 MHz. Am I correct that it is imposible to setup I2C2 to 1 MHz with this setup?Thanks!

Hello.Attempt to debug the example code using 'J-LINK' in 'ST25RU3993-EVAL'.'J-LINK' has been connected to the entire line and no shock has occurred.But when I try to put the code on the board, it doesn't work normally and it's called "Could not connect to target."'TrueSTUDIO' is in use and debug settings are converted to 'J-LINK'. Please reply. Thank you.

I am try to connecting a STM32 Nucleo (F401RE) to a ESP8266 on UART.I've managed to control the ESP8266 with the PC using a usb/uart channel and hyperterminal.I've managed to send uart messages to the PC from the NucleoBut I am unable to command the ESP8266 from the Nucleo, the same commands that worked sent from my PC, do not work sent from the Nucleo. I've sent a simple char 't' just to see how it looks on the scope from both PC and Nucleo to comapre, and Im attaching my measurements, There is a difference between the usb/uart device and what the Nucleo sends, an Endian, it seems the Nucelo adds some '0' and I suspect this might cause the problem.this is my configuration of the Nucleo channel huart1.Instance = USART1; huart1.Init.BaudRate = 115200; huart1.Init.WordLength = UART_WORDLENGTH_8B; huart1.Init.StopBits = UART_STOPBITS_1; huart1.Init.Parity = UART_PARITY_NONE; huart1.Init.Mode = UART_MODE_TX_RX; huart1.Init.HwFlowCtl = UART_HWCON

I just got my dk2 kit, played with it a little bit, but the performance is so bad. it takes a lot to boot ~30sec and after that it is unresponsive, you click something, then several seconds later something happens. Is this considered normal, or it is just my board?

I'm interested in learning about TF-A, OPTEE, are some demos concerning these topics available?Is it possible to debug the CortexA core, through the embedded ST-LINK? I mean working solution, not in theory?What would be limitations debugging very early boot stuff, trusted world?

I have the zip file for X-CUBE-SBSFU. But I don't know how to add it to STM32CubeMX. I tried install from local on embedded software packages manager. But it did not work.Thanks!

Dear experts,A customer asks me to copy application from flash to RAM and run in RAM.Not sure if this is justified. If I remember correctly it is not so much on 'F4, but maybe on H7 RAM performs much better? Anyway they pay for this so...I've created a project in latest Atollic and selected Target settings-> Code location = RAM.It generates linker script where both code and data goes to DTCRAM at 0x20000000.From description of the memory layout in the H7 RM DTCM RAM area is not suitable for code:"The DTCM-RAM can be used as read-write segment to host critical real-time data (such asstack and heap) for application running on Cortex®-M7 CPU".But it seems to work, with cache disabled.I tried to change the link script: ITCM RAM for code and DTCM for data. This of course works.So, is DTCRAM good for code or it works by coincidence and not supported officially?Where I can find better explanation of the RAM parts of H753/743? Thanks,-- Pavel A.

Hello, ST experts​STM32F415 runs at 168MHz speed on custom board. And UART1 is used between MCU and a peripheral. The UART baudrate is 460800bps. And UART1 global interrupt is the highest priority interrupt except Non maskable interrupt and Hard Fault interrupt. HAL_UART_Receive_IT ​keeps running to receive data one byte a time from peripharal. But overrun error keeps on happening, what might be the reason?Best RegardsYang

I'm working with an STM32L031F4 and I'm trying to calibrate the ADC to no avail. I'm wondering what it is that I'm missing here. With the code snippet below, I never get out of the while loop and the CALFACT stays at 0 (if I understand correctly, CALFACT should be updated with the calibration results upon completion). RCC->APB2ENR |= RCC_APB2ENR_ADCEN; ADC->CCR |= ADC_CCR_LFMEN; //set Low Frequency bit since I'm running <3.5M ADC1->CFGR2 |= (1 << 31); //set up clock for a /4 prescaler ADC1->CR |= ADC_CR_ADDIS; //ensure that ADC is off ADC1->CR |= ADC_CR_ADCAL; //start calibration while ((ADC1->ISR & ADC_ISR_EOCAL) == 0){} ADC1->ISR |= ADC_ISR_EOCAL;The ADC clock is enabled prior to attempting to calibrate...Clock is the MSI at 2.09M with a /4 prescaler set by CFGR2..I'm not overly concerned about this as I'm getting good data out of the ADC without calibration, but I'd like to understand why this isn't working.It looks like a HAL-based project u

I'm programming a custom board built around the STM32F401 MCU and I'm having a hard time configuring the system clock. I'm using a 8MHz external crystal and I'm trying to set up the PLL to get the maximum frequency given by the datasheet, i.e. 84MHz. I've double checked the values with the cubeMX Clock Configuration tab (i'm not using it to generate code though) and the reference manual, the resulting setup being like this:pll_m = 8,   pll_n = 336,   pll_p = 4,   pll_q = 7. the formula for SYSCLK frequency value isSYSCLK_freq = HSE_freq/pll_m*pll_n/pll_pwhich gives us8MHz/8*336/4 = 84MHzwhich is a maximal frequency the MCU can run on. There are some additional constrains on the clocks' values, but they are all satisfied with this setup. The problem is, it doesn't work. The software crashes even before the main() function - the clock setup function is called from the initialization code in reset handler, and the mcu crashes shortly after setting the sysclk

We are working on a very low power device which requires a "wake up" interrupt utilizing a "cost effective" device. I have initially started looking at the LIS3DE which has two interrupt outputs.We essentially are in an active (VCC is on), with low power consumption waiting for the shock to occur. Once the shock occurs, we need to generate an interrupt to "wake up" the MCU.We need to have an interrupt occur at 100usecs after sensing the shock and generate the interrupt.Can you provide a recommendation which of your devices fits these requirements best?NOTE: This question and answer originated from a customer support case which was handled by us. We regularly review support cases and add any helpful ones here for all to benefit from.              

Datasheet DS12536 Rev 1, page 45 says:-----------------------------------------------------------------The STM32F730x8 devices feature a UTMI low-pin interface (ULPI) for high-speed operation (480 Mbit/s). When using the USB OTG HS in HS mode, an external PHY device connected to the ULPI is required.The STM32F730x8 devices feature an integrated PHY HS.--------------------------------------------------------------------As you can see, these records do not provide information about which specific devices require external PHY.Additionally, I've found little bit more clear descritption in the very different part of mentioned document: page 13.-------------------------------------------------An USB OTG full-speed and a USB OTG high-speed with full-speed capability (with the ULPI only for the LQFP64 and LQFP100 packages and with the integrated HS PHY for the LQFP144 and UFBGA176 packages) -------------------------------------------------That sounds much more clear. So it looks like reco

Hi Guys!I'm using windows 7 to programming via SWD the BlueNRG-1.Using this version of windows I don't have any problem. It is my dev PC.But now I need to use on Windows 10 to mass production and change MAC address. The factory only have Windows 10.I tried 3 different PCs with windows 10 and always got an error of installation.Follow the error when the software try to install the USB driver.Thank you!

Hi,I am trying to get the NMEA data over UART and print it over another uart .But when i try read in loop after writing data to PC ,I'm not receiving any data. what could be the issue?any ideas ??

Hey.I am using the STM32F769I Discovery board,and I want to decode a JPEG which I receive from Arducam Mini via SPI.I used the code from the JPEG_DecodingUsingFs_DMA Example and modified the JPEG_Decode_DMA function in a way, that it takes a binary array as data input, rather than a file object. Everything else stayed the same.However, when I start decoding, I won't get to JpegProcessingEnd triggered by the JPEG_OutputHandler. This seem to be, because of the Jpeg_OUT_BufferTabs won't change their state to "FULL".Any idea or hint for me why this is not working?Or what I can test to find out the cause for that?

We are developing an application where the host controller will drive two radio modules.But Host controller software should have MISRA 2012 compliant SDK with RTOS support and should support FIPS-certified crypto library.Do anyone can help us to find appropriate MCU that meet our requirements ?