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Hi Everyone,I am trying to run HRTIM Master unit with repetition interrupt and the repetition counter is 1. Now, when I am in interrupt I have to update compare and period registers and using LL to do so. But, within interrupt merely updating registers using LL_HRTIM_TIM_SetPeriod(HRTIM1, LL_HRTIM_TIMER_MASTER, PRD); LL_HRTIM_TIM_SetCompare1(HRTIM1, LL_HRTIM_TIMER_MASTER, (0.5)*PRD);takes around 2usec, which is a lot for my application. Any way to do it quicker?

Hello,We are working with a custom board using the STM32H753II that connects to a 480x320 ILI9486 LCD via the FMC (8080 interface). The display and its custom-written driver work fine when writing pixel data using the CPU. To improve performance, we want to use the DMA2D available in the MCU for most rendering tasks.The first thing I tried was using the DMA2D in Mem-to-Mem with Blending and fixed color BG mode (MODE 101) with the FG color format set to A4 for anti-aliased font rendering (size 12x16). OMAR was set to the same address used when writing manually. I expected this to work just fine. However, the displayed characters are extremely distorted and not recognizable unless you know what they should be.To further debug this issue, I created some test characters. One consists of a gradient from 0x0 to 0xB from left to right. The other consists of a 2px wide vertical line in the center.All characters were drawn in the order they are shown and right after one another using interrupts

Hi, I have custom HW with STM32L496RGTx. On board I have MicroSD card slot.I would like trying emmc from Hardkernel with microSD reader like this: I use CubeMX 6.1.1 with STM32L4 v1.16.0 package. If I set sdmmc1 to MMC 1bit in FATFS doesn`t offer SD card.Why? How to set up emmc+fatfs+freertos with STM32L496?Please helpThank you

/* Reset of all peripherals, Initializes the Flash interface and the Systick. */ HAL_Init(); /* USER CODE BEGIN Init */ //TimHandle.Instance = TIM1; HAL_TIMEx_ConfigCommutEvent_IT(&htim1, TIM_TS_NONE, TIM_COMMUTATION_SOFTWARE); /* USER CODE END Init *///////////////////////////////////////////////////////////////////////////////////////////* USER CODE BEGIN 4 */void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef* htim){  if(htim->Instance == (TIM2)){    HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_14);    HAL_TIM_GenerateEvent(&htim1, TIM_EventSource_COM);    //count++;    //BRG_switch();  //<-this call is working    }  //if(htim->Instance == (TIM1)){pwm++;}}void HAL_TIMEx_CommutCallback(TIM_HandleTypeDef *htim1){  count++;  BRG_switch();    //<-this call is not working!}

Hi,Need a support for STM32WL5CC development on Software and Hardware schematic level.

hiI work with IAR application (Ver:8.4) for debugging and programming. Sometimes when I am in debug mode and I try to break and reset micro via iar tool bar, I encounter this message and I am not able to break and I have to reprogram. Could you please tell me whats the reason and how I can prevent this problem. Thanks in advance  #IAR

Hi all,An LED is connected as below.PA1 --- Resistor --- LED --- 3.3VBuild test.bin from source code shown below using STM32CubeIDE. while (1) {  /* USER CODE END WHILE */  /* USER CODE BEGIN 3 */  HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_1);  HAL_Delay(200); }Create test.dfu from the test.bin.Connect a board to PC via USB, and "STM Device in DFU Mode" appears in Device Manager.Try to upgrade the test.dfu into the board using DfuSeDemo.A message "Your device was plugged in DFU mode. So it is impossible to make sure this file is correct for this device." pops up.Click "YES."A message "Upgrade successful !" is shown.Disconnect USB from the PC, connect BOOT0 to GND and re-connect USB to the PC.An LED blinks with an interval of 2sec. Which maybe a demo exe pre-installed. So, it seems to fail to install my program.Could anybody tell me solution?Thank you.

HI,So I cannot seem to get the time base that I expect out of Timer 6. I have got timer working wiht the right freqnecy however I cannot seem to get timer 6 to work at the expected freqency. It seems to be running twice as fast to what I set it to.I am running a 16 MHz internal, in the diagram attached you should find the rest of the RCC settings.This is the code that goes with that diagram. I have checked it and it should all be good but maybe I missed something.RCC->CR |= RCC_CR_HSEON; //HSE on while((RCC->CR & RCC_CR_HSERDY) != RCC_CR_HSERDY); // Waiting for HSE to be ready RCC->CR &= ~RCC_CR_PLLON; // Disable PLL while((RCC->CR & RCC_CR_PLLRDY)== RCC_CR_PLLRDY); // Wait for pll to turn off RCC->CFGR = RCC_CFGR_PLLSRC_HSE_PREDIV | RCC_CFGR_PLLMUL9 | RCC_CFGR_HPRE_DIV1 | RCC_CFGR_PPRE1_DIV2 | RCC_CFGR_PLLXTPRE_HSE_PREDIV_DIV2;//PLLSCR = HSE/2 , PLLMUL = x9 (72Mhz),AHB prescaler not devided, APB1 Clock /2 = 36MHz (Max=36MHz) RCC->CR |= 0x01000000; //

Hi and happy new year,Migrating from STM32F103 to STM32F303, I mostly copy&paste my code from STM32103 to STM32F303, and only adjust what's necessary. However, I am having troubles with the TIM2 peripheral. Before starting the counter, the CNT register shows the correct reset value of 0x0000. My ARR register is set to 499. When I start the timer, I do not enter my ISR. When I halt the program, I see that the counter has incremented far beyond my ARR value (11052779 when I halted the program). The ISR was not entered between CNT=0 and CNT=11052779).When I let the program run for a while (couple of minutes), the counter keeps incrementing until an overflow occurs (counter value > 2^32), starting from 0 again. When this happens, I enter the ISR, service it and leave the ISR again. Then, my ISR gets entered every 500ms, as supposed.Can anyone tell me, why the counter misses the first ARR, needs to go all the way up to 2^32, overflows, and then matches the ARR regularly in the requir

I am trying to code SPI functionality to connect with an external 16-bit ADC. The STM32 only receives data from the ADC, so only a MISO and SCLK line, along with a Conversion/CS line is required. I am currently using the 32F072BDISCOVERY board to test my code. Unfortunately, I do not have access to the ADC yet, so to perform simple testing to see if my SPI code is working, I figured I could set the MISO line to ground to receive all 0s or to 3V to receive all 1s. However, no matter what I connect the MISO line to, I only receive 1s. To make things simple, I set the SPI peripheral data size on the STM32 to 8 bits. Here is my code. Super simple so I don't know what could be going wrong here. uint8_t spi_value[1];HAL_SPI_Receive(&hspi1, spi_value,1,1000);I am reading out the value over UART and checking it in the live variables section in the debugger. It always is 255, which is the equivalent of all 1s.

My chip is STM32F407

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it seems that a write to AXI SRAM very shortly before a system reset (via AIRCR) gets lost. I wrote a very short block of code that simply reads a word from 0x24000000, increments it, writes it back, and resets the processor. I can see that the value is not changing. Using a debug tool, I can see that, if I manually modify the contents of memory, the register used for the increment changes accordingly. Also, if I use the debug tool to display that memory location after the code should have written it, it shows the new value. However, if I let the code write back the new value, then reset the processor, the memory reverts to its old value after the reset (as shown both by reading the memory directly or by displaying the register).​I saw this note in the reference manual: “When a half word is written to an internal SRAM and a reset occurs, this half word is not really written to the SRAM after reset. This due to the ECC behavior.�? However, this does not apply: I am doing full-word-size

I am using STM32H743BI controller. I need to use backup RAM as nonvolatile ram. So I use external 3V battery and LSE 32.768 crystal for RTC. RTC works well but I can not use backup RAM. I use code like below;PWR->CR1 |= PWR_CR1_DBP;while(((PWR->CR1 & PWR_CR1_DBP) == 0));I do not know is there anything I should do. I can not find any application not or source code about backup RAM.

Hi all,We use TextureMapper bilinear interpolation to rotate the image, but in RGB565 mode, dirty spots will appear on the border of the image.This problem will appear in version 4.15, but not in 4.12.3.Any suggestion to avoid the issue?

Hi, I have a STM32F407 board that is running as a full duplex slave. it receives data from a Raspberry Pi configured as a SPI master. Is there a way to receive data from the RPi in a non-blocking mode? One way I could think of was to set the CSN line as a falling interrupt and then call the receive function within the callback. Unfortunately, I've run out of interrupts (many many endstops!).I tried starting the SPI comm using interrupt mode but that does not seem to work. It transferred only the first two bytes (of the 42 bytes I wanted to transfer). I will try the DMA but I believe that too does a one time transfer and then stops(?)Any other ideas?

void TIM1_UP_TIM16_IRQHandler (void) { volatile uint8_t t; uint32_t sr;   sr = TIM1->SR; sr &= ~TIM_SR_UIF; gpio_set(TIM1_PORT, TIM1_PIN); gpio_clr(TIM1_PORT, TIM1_PIN); TIM1->SR = sr; while (TIM1->SR & TIM_SR_UIF); }Above is the code for TIM1 Update Event Interrupt Handler. My repetition counter register TIM1_RCR value is set to 1, and I configured this to be center-aligned PWM mode.I am triggering TIM1_PORT/TIM1_PIN GPIO just to see the interrupt happening on the logic analyzer, and I expected to see this happens every twice when overflow/underflow happens (RCR is 1)However, as shown in the picture attached, this interrupt happens "twice in a row" IF above line 10 while loop is commented out? And when it is not commented out, it only appears once. So the question is why did this delay happen when trying to clear the status register TIM1_SR?Also, from this picture below, the red arrow shows that in the very beginning, when the first interrupt of Upda

Hi,I am trying out the following tutorial: https://support.touchgfx.com/docs/tutorials/tutorial-01, which is very basic.In the "Running an Example on an STM32 Evaluation Kit" section, when pressing run target, everything compiles, the MCU is loaded, but the external memory is not programmed.(I still get the Done message...)Looking at the extflash.bin size, it is over 2GB!I did not modify the example in any way.Looking at the Images and Texts, there is nothing extra and it shouldn't use much more than a few MB.Did anybody successfully run this example?Setup:TouchGFX Designer 4.15.0STM32F746G-DiscoThanks,Franck.

Hi following a reset by the IWDG, does the SRAM1 or SRAM2 keep their content?Thanks

I'm trying to set up SPI transfer via DMA which is triggered by LPTIM1 on STM32H745IIK6. Unfortunately for some reason, no SPI activity is present regardless of the config register values, which seem to be correct. Here's the LPTIM1 and DMA1 config:And I'm starting the timer with:HAL_LPTIM_Init(&hlptim1); HAL_LPTIM_Counter_Start(&hlptim1, 190); HAL_LPTIM_PWM_Start(&hlptim1, 190, 95);And trying to initialize DMA with:HAL_SPI_TransmitReceive_DMA(&hspi1, (uint8_t*)&spi_tx_buffer, (uint8_t*)&spi_rx_buffer, 1);LPTIM1 output works, I can see it on the PD13, but as I said, no activity on any of the SPI pins.Can you give me some pointers regarding the initialization of automatic SPI DMA transfer which is triggered by LPTIM1? I have tried to follow a few examples from this forum which use direct writing to registers but none of them work?

Hi all,I have a complex system with several STM32H743 processors, 1 Master, 6 Slave processors. The Master sequentially reads data from all Slaves via Interrupt handling. SPI clock speed is 16 MHz, access to data reads (108 Bytes each Read) every 10 ms.The communication runs properly for some hours but then suddenly one or more SPI ports do not send out clocks anymore - thus no further data is read. I detected that the MASTER Bit in CFG2 register is reset in this case (which of course causes that no clocks are output) I use MXCube code (Version 1.2) and the call to "HAL_SPI_ReceiveIT" returns "HAL_OK". But no data is received due to missing Clocks for the SPI.Can anybody tell, what could cause the Master Bit to be reset (without calling HAL_SPI_Init or reconfiguring the SPI) ?The other registers look ok (SPE = 1, CSTART = 1, TXTF=1, TXP=1, Interrupts are enabled).Any help very much appreciated!

How do I have to set the configuration of the FDCAN Message RAM Start Adresses correctly in order to use 2 CANFDs simultaneously?Is there an example which shows a correct initialisation? The default samples initialize all start Adresses to 0, but this leads to Message corruption!Here my sample code: Would this be correct?   if (nCan == CAN0)   {      phCan->Instance = FDCAN1;      uCANOffset = 0;   }   else   {      phCan->Instance = FDCAN2;      uCANOffset = 1024;   }   phCan->msgRam.StandardFilterSA = 0;   phCan->msgRam.ExtendedFilterSA = 0;   // Start-Adressen für Message-RAM:   phCan->msgRam.RxFIFO0SA = 0+uCANOffset;   phCan->msgRam.RxFIFO1SA = 512+ uCANOffset;   phCan-

Hello,I am currently trying to transmit CAN frames from my SPC570S-DISP board. The board is connected to a verified working CAN node that is expecting frames at 500 kbps. I am able to write to the CAN buffers and get the CAN core to transmit, but it transmits the same nonsensical frame regardless of the input parameters (data, ID, RTR, IDE, SRR, length). To send these frames, I configure the CAN core to the timing settings I need, then I configure a TX and RX MB, then I write the data and ID to a TX MB, then I set the TX MB code to 0x0C to initiate a transmission. I then await for the TX MB code to return to 0x08, which never happens. I observe the following frame on my scope, repeated every 4 ms or so:The bit widths are as expected: multiples of 2 us. The first dominant section is 17 bits long, followed by repeated patterns of 25 bits recessive and 1 bit dominant. No matter what settings I put into the TX MB, the result is the same. What additional settings need to be set for the tran

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Hi again, I'm attempting to use the I2S peripheral on the STM32H7, and the CubeMX produces half-duplex code. Here you see that I'm using an STM32H743, selected I2S, full-duplex slave, but the only choices of mode I get are Mode Slave Transmit and Mode Slave Receive. There is no full duplex mode selectable. In addition, when I have mode slave transmit enabled, the data is spit out on the wrong pin (PA6 instead of PA7). There is literally no code change between selecting 'Full-Duplex Slave' and 'Half-Duplex Slave', but there is a change in the .ioc file. Any thoughts on how to make full duplex work? Any idea if this is a known problem in the CubeMX software?In my case, I'm lucky, an only *require* the transmit, and not so much the receive.Thanks so much!-Caleb