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Hello community, I have a little doubt. Are all the GND pins internally connected inside the microcontroller? Is the analog reference (AVSS) internally connected with the digital one (VSS)? If it not, how is the isolation between them?I don't know where I can do the union between the analog AGND plane and the digital GND plane and I was thinking if I can use the microcontroller to perform internally the connection. Thank you in advance!Luis

Hello everyone,I'm tring to implement a calculation of firmware CRC in run time mode.Is there inker command method to acquire last address where code is written?I'm quite confident there is a specific command like __text_end__, for example.Best regrds

I changed linker to use all of these three memories in domain D2. Problem is next :When i put for example uint32_t tempArray[4] = {0x2B7E1516 ,0x28AED2A6 ,0xABF71588 ,0x09CF4F3C} __attribute__((section(".sram1")));this line in my code, when MCU is in debug mode firstly on address of this array i see all zeroes. After calling __HAL_RCC_TIM2_CLK_ENABLE() macro, i can see data in those sram's but it is wrong initialized (random data).Am I missing something? I read thru all documents RF, DS, AN's but neither one says that this memory is something specific. I used this part's of memory as DMA buffers for SDMMC2 and everything is working fine. Only problem is in initialized data.I tried same code - just changed section to AXISRAM and everything is working as expected. So not problem in code.Thanks

I am trying to deploy a pre-trained Mobilenet model using STMCubeMX.ai, but I am facing some issue that I want to report.Here the link of the projecthttps://github.com/alessandrocapotondi/mobilenet_stmcube_aiHere the model I am using:https://github.com/alessandrocapotondi/mobilenet_stmcube_ai/blob/master/keras_model/mobilenet_160_0_25.h5Here the resource usage of my model:600KB RAM for the activations and 1.79MB of weights. Unfortunally despite the "Green Light" given by the tool for the deployment on the STMH7432ZI on the device there is no segment that can fit such ammont of contigous data./* Specify the memory areas */ MEMORY { DTCMRAM (xrw) : ORIGIN = 0x20000000, LENGTH = 128K RAM_D1 (xrw) : ORIGIN = 0x24000000, LENGTH = 512K RAM_D2 (xrw) : ORIGIN = 0x30000000, LENGTH = 288K RAM_D3 (xrw) : ORIGIN = 0x38000000, LENGTH = 64K ITCMRAM (xrw) : ORIGIN = 0x00000000, LENGTH = 64K FLASH (rx) : ORIGIN = 0x8000000, LENGTH = 2048K }Best,Alessandro

Hey,According to the datasheet, the stm32f103RB has 128K of Flash memory. If my code exceed 64k I am getting a linker error “L6406E: No space in execution regions with .ANY selector matching …�?Did I have overlooked something ?I'm working wth the Keil IDE.IDE-Version: µVision V5.10.0.2Best regardsGoran

READ/WRITE operation using the data/value blocks will require a manual key load to the smart card reader and then use that key to authenticate a certain sector or block based on the usage of the developed code.Is there authenticate and load keys functions supported by this device?i am using M24SR64-YSDK NFC1 version 1.8

I am trying to deploy a pre-trained Mobilenet model using STMCubeMX.ai, but I am facing some issue that I want to report.Here the link of the projecthttps://github.com/alessandrocapotondi/mobilenet_stmcube_aiHere the model I am using:https://github.com/alessandrocapotondi/mobilenet_stmcube_ai/blob/master/keras_model/mobilenet_160_0_25.h5For the model that I am using, the compression seems to have no effect:None (1.79MB)Compression 4 (1.79MB)Compression 8 (1.79MB)Is it normal? There are any log that I can inspect to check what is going wrong?PS: i will report another issue regarding the activation size on another topic.

I am trying to program the STM32H753 flash on our board in DFU mode. Specifically on a raspberry pi running linux.I connect the boot0 to 1.8V while plugging in my USB-C cable and then the boot0 jumper wires are no longer connected. So if DFU mode is exited, I expect the application to run and for blinky leds to reflect that.In Windows, using DeFuSeDemo, I can program the flash and then click the button "Leave DFU" and see that the application was started based on LEDs that blink.However, I can't seem to figure out the right application and syntax to program the flash from the command line with the option to leave DFU after. I'm starting to think this isn't a syntax/application issue, but maybe a board/firmware issue.In windows, the DfuSeCommand.exe doesn't appear to have that as an option, so I can program, but stays in DFU and/or fails to start the application:>"c:\Program Files (x86)\STMicroelectronics\Software\DfuSe v3.0.6\Bin\DfuSeCommand.exe" -c -d --v --o --fn test.dfu 1 Devic

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Hi, I'm using STM32L0 series and working on UART to communicate with other module and I had chosen the polling method because i know the device max response time and exact data what i'm going to receive. I was running my application for testing and it worked fine for 24 hours and then after and MCU not able to receive data even the module is responding i don't understand this scenario, can anyone please suggest what could be the problem. Thanks in advance.Regards,Vijay RakeshHAL_UART_Transmit(&huart1,A_Buff,7,200); HAL_UART_Receive(&huart1,Rx_Buf,4,5000); // Timeout value is 5 seconds to receive data

I use on STM32H743ZI-Nucleo PG0 as GPIO interrupt with Falling Edge. It works, I get INT triggered, but:an INT is also triggered - sometimes (once every 1000 falling edges) - on a raising edge. After several tests I am sure, this PG0 EXTI0 is randomly and sporadicly also triggered by a rising edge and dependent on when you clear the INT GPIO flag (e.g. much later) also on a low-level.It is very disappointing because I get false, spurious interrupts: Sometimes, when I clear the INT reason on my external chip (e.g. via SPI register write), the signal is de-asserted (goes high for a low-active interrupt) - this raising edge triggers again my EXTI0 ISR handler,in a random, sporadic way.I am sure, GP0 as EXTI0 with falling edge trigger does NOT work properly.And it looks like a HW bug inside the STM32H7 MCU itself:if I route the same signal from PG0 to PF3 and use EXTI3 ISR handler instead, with the same way to configure, handle INT, similar ISR etc. - all is fine, no spurious INTs.So, it c

I am aware of the TIMER4 ADC_EXTERNALTRIG_T4_TRGO definition bug and have modified the file accordinginly . I have had this code working in single channel mode ( non DMA) but cannot get it working in multichannel DMA mode .ADC_INIT() { hadc3.Instance = ADC3;   HAL_ADC_DeInit(&hadc3);   hadc3.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV4; hadc3.Init.Resolution = ADC_RESOLUTION_12B; hadc3.Init.DataAlign = ADC_DATAALIGN_RIGHT; hadc3.Init.ScanConvMode = ADC_SCAN_ENABLE; hadc3.Init.EOCSelection = ADC_EOC_SINGLE_CONV; hadc3.Init.LowPowerAutoWait = DISABLE; hadc3.Init.ContinuousConvMode = DISABLE; hadc3.Init.NbrOfConversion = 4; hadc3.Init.DiscontinuousConvMode = DISABLE; hadc3.Init.NbrOfDiscConversion = 1; hadc3.Init.ExternalTrigConv = ADC_EXTERNALTRIG_T4_TRGO; hadc3.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_RISING; hadc3.Init.DMAContinuousRequests = DISABLE; hadc3.Init.Overrun = ADC_OVR_DATA_OVERWRITTEN; hadc3.Init.OversamplingMode = DISABLE; if (HAL_

Hello,​I​n the datasheet for the STM32F423 , I see at the table 18 "Features depending on Power Supply range". I want to understand what will be the performance of the MCU if I power it with 1.8 V. I don't clearly understand the table. At the column "Max Flash memory access with wait states "I see for 1.8V 100MHz with 6 wait states, but then in the comment below the table I read that thanks to the ART accelerator the wait states mentioned in the table doesn't impact the execution speed as it is zero wait state... So why not just to write 100MHz with 0 WS in the table? What I am missing?​A​lso in the table there is a column "IO operation " and for 1.8V I read " No io compensation " . What does it mean?​B​ottom line, I don't need ADC, DAC or any analog functionality. Can I work @ 1.8V with the same performance like with 3V?Thanks!​

Dear Community,I am trying to import a standard Mobilenet Model from Keras.Unfortunally I am getting this error during the load of the model inside cubemx.ai: [AI:Generator] Command ***/STM32Cube/Repository//Packs/STMicroelectronics/X-CUBE-AI/3.4.0/Utilities/windows/generatecode --auto -c C:/Users/ALESSA~1/AppData/Local/Temp/mxAI256000625112004454394714515898287/config.ai   [AI:Generator] NOT IMPLEMENTED: Unsupported layer type: ReLU   [AI:Generator] Python generation ended   [AI:Generator] Invalid networkAccording to the user manual UM2526 (Page 46) https://www.st.com/resource/en/user_manual/dm00570145.pdf should be supported.Activation: nonlinear activation layer, decoded also when part of Conv2D, DepthwiseConv2D, SeparableConv2D, or Dense. The following attributes are supported:– nonlinearity: type of nonlinear activation; the following functions are supported: linear, relu, relu6, softmax, tanh, sigmoid, and hard_sigmoid.Some of you has some insight about the problem

If switching GPIOA mode from 'General purpose output' (set to 1) to Alternate function USART Tx:Will level of pin break down for a short time or will it stay rock solid at "1" ?Rem. One has to change MODERy from 01 to 10. One may go via 01 -> 00 -> 10   or via  01 -> 11 -> 10.

Hello,Can X-CUBE-SBSFU source code work with STM32H7 (STM32H743) too ?In the getting started it is said:"It comes with an example implementation running on the NUCLEO-L476RG, NUCLEO-L432KC, B-L475E-IOT01A, 32L496GDISCOVERY, NUCLEO-G071RB, 32F413HDISCOVERY, and 32F769IDISCOVERY platforms.".Thank,ranran

Hello.I downloaded and tried your "Secure boot & secure firmware update software expansion for STM32Cube" solution.https://www.st.com/en/embedded-software/x-cube-sbsfu.htmlIt works great on my Nucleo-64 board, and the next step what I wanted to do is port it to my own MCU (STM32F2xx).Here comes my question: Do you have any guide that shows step-by-step what to do exactly?I started with SECoreBin. I created a project for my own MCU. Changed the HAL, but got errors. I realized that, my MCU had sectors, instead of pages, okay, I changed that to fit my needs. Then I still got errors regarding the CRC, okay I changed that also. etc. etc. etc. Now I can compile everything (in the SECoreBin project), but I get linker errors. I probably have to change something in the linker script.So the bottom line is: whatever I do, I face a new problem. I am kinda lost in this work. This is why I need some kind of step-by-step guide. If such thing exists.Or an alternative question: Can I request an off

Hello there,I was wondering either it is possible (with STM32L4) to turn on a PWM channel for a certain amount of cycles or for a certain amount of time? Ideally, without any interrupts during this period or at the end.I am trying to figure out a way to re-trigger an external watchdog supervisor without breaking the MCU from sleep mode. For example, lets say the wdg device has to be retriggered every 500 ms and I would like to sleep the MCU for 2 seconds. With this functionality, I would configure the peripheral to do 4 cycles (assuming 500 ms period) or to work for 2 secs (any period less than 500 ms is ok). Turning the pwm peripheral without any timeout could cause a deadlock in the application.In case this is not possible, I thought of using an external multivibrator, that would make the additional line toggle for me while I am asleep... But its a bit too much.I would appreciate all help.

Hi,I am going to use internal osc for generating a frequency of signal 36khz. Do i need any external circuitry for it ..?For selection of 8Mhz frequency as clock can it be done in cube mx only and generate a source code form there...?Selection of prescaler for 8MHZ frequency to get signal of 36khz.

Am I correct in thinking that if I can only make changes to screen widgets from within the model::tick() function?I had passed the model pointer out to the remainder of my hardware app so it could push new updated data as it happened, but even though I saw the view code run to update the widgets, after their invalidate the screen image did not change.I did see a brief flash of the updated widget as the screen was switching to another one so it looks as if the change was happening but the refresh was not.If Instead of getting the model to update the presenter/view immediately when told from the outside world I set an internal flag and then from within the model:;tick I checked the flag and called the presenter the updates worked.So it looks as if the invalidate was not taking effect unless part of the model::tick call, is this correct?

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STPM32 is used for an e-meter application. Idea is to use 2-pin UART connection, isolate only the RX and TX with optocouplers and not to use the SYN and SCS for reset.According to datasheet on page 68 the remote reset can be performed in two ways:·       Using SYN and SCS pin·       Writing the reset bit (S/W reset in DSP_CR3)Does this last option correctly reset the chip, especially the DSP unit? In this case, two optocouplers would not be needed for the SYN and SCS lines. Will it work as expected ?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.

I am using STM32F070 processor. I want to know a way of instructing the NVIC not to execute Timer interrupt in certain cases. Is there a way to do this? The situaltion is as follows-There are two interrupts- SPI and timer conifgured at same priority level. I have configured timer in auto reload mode. I process application either in SPI or timer interrupt but not both. The situation is that when application is being executed in SPI interrupt, timer interrupt also arrives because of timeout. In my case, I do not want this timer interrupt now as the work is already being done in SPI interrupt already. So I always set the UIF bit in TImer SR regiser in the SPI interrupt, hoping the the Timer interrrupt is acknowledged, and when SPI interrupt is exited, the timer interrupt is not executed anymore (or only in next timeout). But this doesnt work. The Timer interrrupt is always executed after SPI. I can not immediately stop the timer when I enter the SPI interrupt as I have to do some validati

Posted on May 23, 2018 at 10:05Hello evry body , i can write a byte on flash of stm32f429ZI WÄ°TH success . for info i use nucleo 144 and sector 23 the last sector .for example :with these adresses uint32_t locip1_adress=0x081E0001;//LAST sector for STM32429ZI sector 23uint32_t locip2_adress=0x081E0002;//LAST sector for STM32429ZI sector 23uint32_t locip3_adress=0x081E0003;//LAST sector for STM32429ZI sector 23uint32_t locip4_adress=0x081E0004;//LAST sector for STM32429ZI sector 23uint32_t remip1_adress=0x081E0005;//LAST sector for STM32429ZI sector 23uint32_t remip2_adress=0x081E0006;//LAST sector for STM32429ZI sector 23uint32_t remip3_adress=0x081E0007;//LAST sector for STM32429ZI sector 23uint32_t remip4_adress=0x081E0008;//LAST sector for STM32429ZI sector 23uint32_t ROV_min_adress=0x081E0009;//LAST sector for STM32429ZI sector 23 this data needs two bytesuint32_t ROV_max_adress=0x081E00B;//LAST sector for STM32429ZI sector 23 this data needs two bytes/* Unlock the Flash to

Please send me tutorial related to STM32F429ZI EthernetAlso i am not able to import cubemx sample code to Truestudio, please provide supportRegardsAshwinraj