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My development environment is stm32cubeMX and IAR.1.Init QSPI2.Read data via QSPIif the DummyCycles = 0,the program is running abnormally.if the DummyCycles over 2,the program is normally.int main(void){ /* USER CODE BEGIN 1 */ /* USER CODE END 1 */ /* MPU Configuration--------------------------------------------------------*/ MPU_Config(); /* MCU Configuration--------------------------------------------------------*/ /* Reset of all peripherals, Initializes the Flash interface and the Systick. */ HAL_Init(); /* USER CODE BEGIN Init */ /* USER CODE END Init */ /* Configure the system clock */ SystemClock_Config(); /* USER CODE BEGIN SysInit */ /* USER CODE END SysInit */ /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_QUADSPI_Init(); /* USER CODE BEGIN 2 */   /*Read Data Via Qspi*/ uint8_t aucBuf[2]; QSPI_ReadRegEx(aucBuf, 2); /* USER CODE END 2 */ /* I

I am trying to use the st25r3916b in listen mode to act as an NFCA card.After successful calls to rfalNfcInitialize() and rfalListenStart(RFAL_LM_MASK_NFCA, ...) I am entering into a loop and calling rfalWorker(). In the same loop I call rfalListenGetState to try and see if any data comes back from the reader, which never does.After debugging this some, I can see that inside rfalRunListenModeWorker (called from rfalWorker) always goes through the following state change:RFAL_LM_STATE_POWER_OFF -> RFAL_LM_STATE_IDLE -> RFAL_LM_STATE_POWER_OFFThis seems to be happening because ST25R3916_IRQ_MASK_EOF is set on the st25r3916b's register. This feels strange because ST25R3916_IRQ_MASK_EON is also set, which is required for it to leave the idle state in the first place.I feel like the chip is not configured properly, but I have no idea why.Notes about setup:X-NUCLEO-NFC08A1 dev board connected to NUCEL F401RE dev board.I have successfully tested the setup in polling mode and can read car

Hello Support Team,Have a great dat!!!.I Have B-U585I-IOT02A development kit for our project purpose.we have created the project as per the below configuring - Enable trust zone - Enabled TreadX in non-secure region - Created API Secure side Toggle LED and called through NSC regionAlso, configure chip through cube programmer for secure region bank 1 and bank2but we are facing hard faults when we call the NSC region api.Can you supply a similar example for B-U585I-IOT02A based on the screenshot I took of the same example that is available for different series? Also, provide a step of chip configuration through the cube programmer Thanks Hiren R. Thumar

Each time I call SET_BIT to set a bit the register value remains at 0. All registers are 0 even after writing, as though they are read-only. For example, the following does not set the bit:DMA2_Stream0->CR |= ((uint32_t)1);What am I missing?Thank you!

I try to measure frequency and duty of a PWM input signal with an STM32G474. For this i have selected the combined channels option "PWM input on CH2" for Timer 15 in CubeMX. The measurement works well, as long as the input signal is not to slow. When the input frequency drops below 1300Hz, i get wrong frequency values. Obviously this is because the 16 Bit timer runs over: I use the 170MHz system clock divided by 2. dividing 85.000.000Hz by 0xFFFF results in about 1296Hz. When i apply a frequency of say 1200Hz, the time between two rising edges used for period detection is more than 0xFFFF timer ticks. So the timer counter wraps around and I get only the 16bit fraction of a number slightly above 0xFFFF, corresponding to a very short period or respectively a very high frequency. Of course the measurement range can be controlled by adjusting the timers prescaler. The problem is, that I need a criterion if the measurement was valid, of if overrun had occurred.In my understanding, the PWM i

Hi,I wanna use an RF Transceiver 433khz with STM32 boards and I am looking for the best choices. My requirements are very simple:Frequecy supported 433MhzMultihoping strategySPI interfaceI found the nRF905 but I am looking for a better solution.Thanks,Ayoub

The problem is about Sprintf with floating point number on STM32L452RET6P.Although all settings are correct, sprintf doesn't work with floating point number only. Although it works on stm32cubeMX, it doesn't work on bare-metal program. It loops endlessly in the Default_Handler function. I'm about to go crazy. First sprintf properly works. But the second one does not. After second sprintf, I've traced back the code on the debugger and I can see that the DefaultHandler executes and traps the board in an Infinite_Loop as a result of WWDG_IRQHandler misfiring. Error message tells me "No source available for "<signal handler called>() at 0xfffffff9" , No source available for "_printf_float() at 0x8001124", No source available for "_svfprintf_r() at 0x8004c8e", No source available for "sprintf() at 0x8001d08" . I can't seem to solve this problem, do you have any idea? Program is below: Here is linker flags. -mcpu=cor

I have difficulties connecting two X-NUCLEO-NFC05A1. I had no problems reading different types of NFC cards but It is impossible for me to detect the other X-NUCLEO-NFC05A1. The board does not indicate that it detects any RF device.Is it possible to establish a p2p connection between two X-NUCLEO-NFC05A1 and exchange data?Regards

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I am trying to follow the "STM32WB Getting started Series: Part 12b lab..."(https://www.youtube.com/watch?v=CKYWy7LKL68&list=PLnMKNibPkDnG9JRe2fbOOpVpWY7E4WbJ-&index=16) on youtube. In the video he is using a WB55, but I am trying to implement it on a WB15 (both Nucleo).But, it does not work on the WB15 board. When I try it on the WB55 board, it works fine.I have been combing through the video trying to see if I have a setting somewhere that is different, but nothing jumps out.If I open up the P2P example project from CubeMX, it works just fine, so the BLE stack is working fine on the WB15 board.I am hoping there is just some setting I am missing, because the project will eventually have to run on a costum board with a WB10 :\ RegardsRolf

I recently bought a STM32h747i-DISCO board from DIGIKEY. After uploading a standard demo program from touch GFX the display was working fine for approximately 10 seconds, then it shows distorted or horizontal lines and it gets worse after some time. Every time when I unplug and connect it to my laptop the display works fine for 10 sec and afterwards the same problem occurs. Why is this happening?I have attached the images of the display. Any suggestions?

Hi, I want to use both CAN1 and CAN2 for my application with 500kbps and 125kbps speeds respectively. I have initialized both of them as per my requirements using HAL. Where in Tx is implemented in polling and Rx in interrupts. CAN1 Tx and Rx working perfect. Coming to CAN2 Tx is working and Rx is not working. Interrupt itself is not firing up for CAN2 Rx (HAL_CAN_RxFifo0MsgPendingCallback is not being called). I've read in datasheet that some SRAM sharing process is happening between 2 CANs. I'm unable to comprehend that. Is that an issue?I'm attaching the code also. Please check and help!

I am trying to send messages from Can1 to Can2 in an stm32f205vet6. HAL_CAN_AddTxMessage is returning HAL_OK but I am not able to receive any messages in CAN2. And I cant see any messages transmitted in a scope. clock speed = 120MhzCan speed = 500 kbpsMy code belowCAN1_initvoid MX_CAN1_Init(void){ /* USER CODE BEGIN CAN1_Init 0 */ /* USER CODE END CAN1_Init 0 */ /* USER CODE BEGIN CAN1_Init 1 */ /* USER CODE END CAN1_Init 1 */ hcan1.Instance = CAN1; hcan1.Init.Prescaler = 15; hcan1.Init.Mode = CAN_MODE_NORMAL; hcan1.Init.SyncJumpWidth = CAN_SJW_1TQ; hcan1.Init.TimeSeg1 = CAN_BS1_1TQ; hcan1.Init.TimeSeg2 = CAN_BS2_2TQ; hcan1.Init.TimeTriggeredMode = DISABLE; hcan1.Init.AutoBusOff = DISABLE; hcan1.Init.AutoWakeUp = DISABLE; hcan1.Init.AutoRetransmission = DISABLE; hcan1.Init.ReceiveFifoLocked = DISABLE; hcan1.Init.TransmitFifoPriority = DISABLE; if (HAL_CAN_Init(&hcan1) != HAL_OK) { &n

Hi,I use ADC3 on STM32H7, I need to know (and set) what is sampling frequency.I use 3 channels in 16 bits. What I tried to calculate?1) Tconv_time = 8.5(setable)+8.5(fixed for 16 bits) = 17 ADC clock cycles = 17/30Mhz = 566 ns2) From this image I should have Fadc_ker_ck = 30 MHz, becase my CKMODE = 0b11, and adc_sclk = 480/2 = 240 MHz (HPRE=2) - so it is sys_clk/2Form above the Tconv should be 17/30Mhz = 567 nsWhat about sampling frequency? My PRESC in ADC3_CCR = 0b1010 (divide by 128)So I should divide some_CLK/128. What is the some_CLK? Is it the Fadc_ker_ck = 30 MHz?? Then it would be 30Mhz/128 = 234,375 kHz = 4,266 usecExperiments:I use BDMA for continual ADC3 measurement, I converts 200 samples for each chanels (3) = 600 samples.I can measure the conversion time for all 3 channels - it takes 34.82 ms. => It is 600samples/34.82 ms => 1sample/58usecSo:measured time for 1 sample is 58 usec = 17,241 kHzcalculated time for 1 sample is 4.266 usec = 234,375 kHzSo what I did wrong?T

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So downloaded code from ST website (i.e. https://www.st.com/en/embedded-software/stm32cubeh7.html - version 1.11.0) then built the CM4 and then the CM7 project for the BSP example.This builds ok, but when I load onto the board the LCD display just displays random pixels. Any ideas ? Thanks.

screen MB1166-a09,FP-AI-VISION1_V3.1.0,camera mb1683-CAMS-A02, the screen is a mess.No camera picture.I'm using cubeide for run( flash the borad),should i change the version of FP-AI-VISION1? where i goes wrong？

Hi all,I have the B-G431B-ESC1 board and would like to try the 6-step mode. When I select a 6 step project in MC Workbench and the B-G431B-ESC1, the software shows that there is no current control/no over current protection. The schematic shown has only 1 current shunt and the board has 3 resistors.If I choose another board (e.g. EVSPIN32F0251S1) which has only one shunt resistor, the current control function is active.Does the 6-stage implementation only work with one shunt resistor?Is this a limitation of the GUI, and can the MC API be configured to use 3 resistors in 6-step mode?Or would I have to program the control myself?Kind Regards Thundernail

The USART section states that all 4 USARTs can be clocked from a common set of 4 clock sources, but doesn't reference how to specify the clock for USART4 either.

The STM32F072 Clock tree figure in reference manual shows APB1 prescaler, but where is that defined in the reference manual? When I search for APB1 in the reference manual, in the context of a register field, it does not show up (other than in the clock tree figure). This controls the frequency that goes to the timer peripherals. Additionally, this figure shows "x1" or "x2" by this APB1 label, which is different than all the other values associated with division (they're shown as "/n", where n is the divide by value). Does the "xn" mean you multiply by 1 or 2, or divide by 1 or 2? Does ABP1 prescaler mean bit 0 or bit 1 of the APB prescaler register field? This part of the reference manual (figure 10 in RM0091 Rev 10) doesn't make sense to me. Thanks for any help in clearing this up.

Hello everybody!LWIP has a possibility to assign new port number every time after reboot the device. There is define in cc.h#define LWIP_RAND() ((u32_t)rand())But it does not work properly. Every time after reboot I get same port number. For solve this, I defined in lwipopts.h:#define LWIP_RAND() ((u32_t)(HAL_RNG_GetRandomNumber(&hrng)%16384+49152))But compiler shown me warnings about redefine LWIP_RAND(). And I was forced to change the code in cc.h. CubeMX will overwrite this changes at next code generation. How to fix it?

*Using FP-AI-Vision1 Packimport the binary webcam, the screen is black.import the people detection binary, the screen is a mess.No camera picture.While import the Tutti Frutti demo, it can normally run.

I have two NOR flash in my hardware.   On SoM (Boot meadia detecting as NOR1 in Uboot) On Carrier Card   Both are detecting in Uboot as Nor0 and Nor1 but in STMCube programmer i am not able to flash to Nor1.   Tool given NOR1 not found error. So not able to flash to NOR1 and Boot from QSPI.   If i put NOR0 in tsv file it is flashing to carrier card NOr flash. I wanted to flash to On SoM QSPI which is detecting as NOR1 which is not supported in TSV file.   To test , I have made the carrier card SPI4 disabled then On SoM QSPI is detecting as NOR0 and flashing and booting works.   [2023-05-25 19:25:57] uboot> mtd list [2023-05-25 19:26:01] SF: Detected is25wp016 with page size 256 Bytes, erase size 64 KiB, total 2 MiB [2023-05-25 19:26:01] SF: Detected n25q256ax1 with page size 256 Bytes, erase size 64 KiB, total 32 MiB [2023-05-25 19:26:01] List of MTD devices: [2023-05-25 19:26:01] * nor0 [2023-05-25 19:26:01]  - device: is25wp016@0 [2023-05-

Hi ST Community, Thank you so much in advance for your timely support.I am developing a Touch GFX GUI on the STM32H7B3I-DK Discovery Board. Code was generated by Touch GFX itself with Cube MX with modifications done by me on STM32 Cube IDE. Free RTOS is used.I have 2 screens. One screen is an ADD screen where the user can add one or more 'procedures' with a unique name. The second screen is a LIST Screen where it displays a Scroll list of all the procedures that the user has added.For example: The user goes to the ADD screen and adds a procedure by providing a name "Procedure 1" and then adds another procedure with the name "Procedure 2". If he goes to the LIST Screen. He will see Procedure 1 and Procedure 2 listed on the scroll list.I have implemented this using the Scroll List Container that is available in Touch GFX. The list item for this Scroll List is a custom container that has a text field. The Scroll list is designed to update the number of list items and the text fields of ea

Hello,Sorry for a long post this needs some context.I've been configuring and testing OP-TEE from the following guide:https://wiki.st.com/stm32mpu/wiki/How_to_configure_OP-TEEI'm using the STMicro fork of optee_os (tag 3.16.0-stm32mp-r2), and the OP-TEE client, test, and examples from v3.16 from the OPTEE and linaro github repos. The full xtest passes.Eventually I'll need more than 16 random bytes so changed the optee_example_random to generate more random bytes. Now for the Oddity. When generating longer runs of random bytes, there is almost always a string of all zeros towards the beginning. Here is the output of the linaro version (generates 16 bytes):# seq 8 | xargs -I -- /usr/bin/optee_example_random Invoking TA to generate random UUID... D/TA: random_number_generate:74 has been called I/TA: Generating random data over 16 bytes. TA generated UUID value = 0xbbe9fda061c8fd5b43632e5126fd12 Invoking TA to generate random UUID... D/TA: random_number_generate:74 has been called I/TA: Ge