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I cannot find the external requirement for wakeup pins PA0, PC13 and PB3 on STM32WL55.Do they need a pullup (e.g. 10K) to keep the output state once the MCU goes into one of the sleep modes?Thanks

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Hello,I am using STM32F469 with an external SDRAM (Alliance AS4C16M16MSA-6BIN) through FMC bus. Both STM32F469 and AS4C16M16MSA-6BIN run at 1.8V. The FMC bus is configured with 13 address pins and 16 data pins as follows: hsdram1.Instance = FMC_SDRAM_DEVICE;       /* hsdram1.Init */       hsdram1.Init.SDBank = FMC_SDRAM_BANK1;   hsdram1.Init.ColumnBitsNumber = FMC_SDRAM_COLUMN_BITS_NUM_9;   hsdram1.Init.RowBitsNumber = FMC_SDRAM_ROW_BITS_NUM_13;   hsdram1.Init.MemoryDataWidth = FMC_SDRAM_MEM_BUS_WIDTH_16;   hsdram1.Init.InternalBankNumber = FMC_SDRAM_INTERN_BANKS_NUM_4;   hsdram1.Init.CASLatency = FMC_SDRAM_CAS_LATENCY_3;   hsdram1.Init.WriteProtection = FMC_SDRAM_WRITE_PROTECTION_DISABLE;   hsdram1.Init.SDClockPeriod = FMC_SDRAM_CLOCK_PERIOD_2;   hsdram1.Init.ReadBurst = FMC_SDRAM_RBURST_DISABLE;   hsdram1.Init.ReadPipeDelay = FMC_SDRAM_RPIPE_DELAY_1;       /* Timing configuration for

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I don't use CubeMX - I write to all the SPI registers directly.STM32F030C8I have SPI1->CR2->DS set as 7 (8 bit data transmit) but the CPU is transmitting 16 bits for each write to the SPI1->DR register.I verify this using a logic analyzer.I can't find any other register setting that affects the number of transmit bits so I'm very puzzled as to this behavior.Any insights to get only 8 bits transmitted?Thanks

Serial port interrupts are firing continuously, so that the application code does not run.I'm using an STM32H743, on the Nucleo board.Initially, USART3 worked properly for a few weeks, then failed in this manner. I then moved to USART1, which worked for a few weeks, then also failed like this. The testing was done with RX grounded and TX left unconnected. The same results are obtained if RX is left floating.The following flags are observed as set on each interrupt:BUSY, CM, CTS, EOB, IBD, NE, ORE, REACK, RTO, RXFF, SBK, TXFT, WKUP.I am only looking for RXNE, TC, and TXE. (For receiving bytes and sending bytes.)What can I do to stop USART1_IRQHandler() being called continuously?P.S. I configure the port with the (mostly) generated:static void MX_USART1_UART_Init(void) {   /* USER CODE BEGIN USART1_Init 0 */   /* USER CODE END USART1_Init 0 */   LL_USART_InitTypeDef USART_InitStruct = {0};   LL_GPIO_InitTypeDef GPIO_InitStruct = {0};   /* Peripheral clock en

STM32CubeIDEVersion: 1.5.0Build: 8698_20201117_1050 (UTC)Project for STM32G071 (Nucleo), Bit names in SFRs wiev for DMA->ISR has wrong numbering.  

1. TCP IP dual stack (Ipv4 / Ipv6)2 TLS1.2

I have configured MDI and MDIO pins and wanted to verify mdio write cycle signal on DSO. So what other settings need to do apart from MDC and MDIO pin configuration. Do I need to initialize MDC clock? What are the settings need to do for MDC clock.Below is mdio_write function I am using.static void mdio_write(volatile struct ETHERNET_tag *reg,uint8_t phy_addr, uint8_t reg_addr,uint16_t data){ reg->MAC_MDIO_DATA.B.RA = reg_addr; reg->MAC_MDIO_DATA.B.GD = data; reg->MAC_MDIO_ADDRESS.B.PA = phy_addr; reg->MAC_MDIO_ADDRESS.B.RDA = reg_addr; reg->MAC_MDIO_ADDRESS.B.GOC = GMII_WRITE_OP; reg->MAC_MDIO_ADDRESS.B.GB = 1; dwmac_qos_mdio_busy_wait(reg);}

Hello , Im currently exploring Touch gfx capabilities on low cost hardware (STM32G071  + SPI LCD shield) , and i comme across a bug .steps to reproduce :Start a fresh new project on Touch GFX using online demo , choose STM32G071 demoLoad a few additional image to project (a series of 40 png issued from a splitted .gif file total size : 150kbConnect board generate code and flash target Results : some images of GUI gets missed up ( black lines ) like : navigation arrow , touch gfx logo and some texts disappear .I suppose this is due to low ram available , can you please explain ow touchgfx is allocating cache for bitmaps in demo project? since the board has a NOR non mapped flash chip for assets storage does it mean that all assets are being cached on startup ? if yes why touchgfx still call for SPI data reader each time i switch screen ?Sorry for long post but i'm quit confused : / , many thanks in advance Ps : please find attached te additional images i'm usingPs2: The additional

Hello,I can't found the electric schematic (pdf is fine) of the STM32F429I-DISC1 evaluation board.Can someone help please.Thanks.

I am designing an application where the STUSB4500 must be able to negotiate successfully with a wide variety of USB-C PD sources. This involves a microcontroller which edits the PDOs of the STUSB4500 on the fly after reading the source capabilities. ST's example software recommends sending a software reset message to the STUSB4500 since the source will retransmit its capabilities during the re-negotiation that ensues, but this software reset triggers a hard reset with some USB-C PD sources, and so I'd prefer a solution that doesn't involve a software reset at all.The USB-C PD specification defines a command GET_SOURCE_CAP, which can be sent in the same manner as the SOFT_RESET message except that the transmit buffer is written with 0x07 rather than 0x0D. However, this triggers a hard reset in all USB-C PD sources I've tested with, even those that handled the software reset just fine in ST's recommended method. Is there a reason why the STUSB4500 hard resets when this message is sent, a

I'm somewhat new to scatter files and I'm trying to understand them better by doing some tests on a ST32F765 project (with 2mb flash at 0x0800 0000 - 0x081F FFFF).This scatter file works OK:LR_IROM2 0x08100000 0x00100000 { ; load region size_region (Sector 8 - Sector 11, single bank) ER_IROM2 0x08100000 0x00100000 { ; load address = execution address AppFileInfo.o (+RO) ; } }   LR_IROM1 0x08000000 0x00100000 { ; load region size_region (Sector 0 - Sector 7, single bank) ER_IROM1 0x08000000 0x00100000 { ; load address = execution address *.o (RESET, +First) *(InRoot$$Sections) .ANY (+RO) .ANY (+XO) } RW_IRAM2 0x20000000 0x00020000 { ; RW data .ANY (+RW +ZI) } }but this scatter file does not work:LR_IROM2 0x08000000 0x00100000 { ; load region size_region (Sector 0 - Sector 7, single bank) ER_IROM2 0x08000000 0x00100000 { ; load address = execution address AppFileInfo.o (+RO) ; } }   LR_IROM1 0x08100000 0x00100000 { ; load region size_region (Sector 8 - Sector 11,

HiIs STA1385 Telemaco3P supported by Arm KEIL MDK?else what are the alternatives for programming and debugging?Unfortunately there is little or no info. on this processor on the ST websitehttps://www.st.com/en/automotive-infotainment-and-telematics/sta1385.htmland none at Keil websitehttps://www2.keil.com/stmicroelectronics-stm32Thanks

Hello erveryone,I have a question regarding the X-NUCLEO-NFC03A1. I want to use the board with NFC Tags Type 5. The board version with the ST25R95 should be able to do that, but it seems like theres only the version with CR95HF available for sale at Mouser etc.. How can I get my hands on the ST25R95 board? And the general description says that X-NUCLEO-NFC03A1 is only able to read up to NFC Tag Type 4 is that also true for the ST25R95 version?Thanks in advance for your answers :)

What happened to the equivalent of I2S_FLAG_CHSIDE as I don't seem to be able to find it.Or do you just count the interrupts and assume it goes Left - Right - Left... forever?ThanksAndy.

I would like to use the RNG of the H743ZI2. The provided example works, but on a new project I can't get it work, The CPU clock is configured to 400MHz just like in the example./* RNG Initialization */   if (HAL_RNG_DeInit(&hrng) != HAL_OK) { /* DeInitialization Error */ Error_Handler(); }   /* Initialize the RNG peripheral */ if (HAL_RNG_Init(&hrng) != HAL_OK) { /* Initialization Error */ Error_Handler(); }uint32_t rnd_number;   void main() { while (1) {   status = HAL_RNG_GenerateRandomNumber(&hrng, &rnd_number); if (status != HAL_OK) { Error_Handler(); } } }  

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Not sure this is the right section...but I would like to know if it is possible to use the L9177A with an hall effect sensor, in that case, I guess the signal is to be routed to the VRIN+ input, what about the VRIN- input?Must be connected to GND or to a some threshold voltage? whats the level of the signal the L9177A will recognize with hall sensor signal?Thanks a lot.

Hi,I recently need to use I2C with interrupt mode to lower my CPU usage.So I did this changes :I changed the function where I call my transmitstatic HAL_StatusTypeDef PGA309_Write_RawData(uint8_t REGISTER,uint8_t LSB_DATA,uint8_t MSB_DATA) { uint16_t i = 0; I2C1_TxBuffer[i++]= REGISTER; //First data : Set register address I2C1_TxBuffer[i++]= LSB_DATA; //Second data : LSB value I2C1_TxBuffer[i++]= MSB_DATA; //Third data : MSB value //return HAL_I2C_Master_Transmit(&hi2c4, (uint16_t)PGA309_SLAVE_ID, I2C1_TxBuffer, i, (uint32_t)100); return HAL_I2C_Master_Transmit_IT(&hi2c4, (uint16_t)PGA309_SLAVE_ID, I2C1_TxBuffer, i); }I added NVIC stuff to HAL_I2C_MspInit()void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c) { GPIO_InitTypeDef GPIO_InitStruct = {0}; if(hi2c->Instance==I2C4) { /* USER CODE BEGIN I2C4_MspInit 0 */   /* USER CODE END I2C4_MspInit 0 */   __HAL_RCC_GPIOF_CLK_ENABLE(); /**I2C4 GPIO Configuration PF14 ------> I2C4_SCL PF15 ------> I2C4_SDA

A bit confused by STM32L496 DISCOVERY board.Documentation says Arduino compatible connector maps timer functions like following printscreen.But in CubeMX, the pins are very different, as can be seen on the following printscreens.E.g. Discovery board doc says PI6 belongs to TIM5_CH1.In reality, according to CubeMX as well as CPU datasheet it belongs to TIM8_CH2.Can anyone help to clarify?  

The H3LIS100DL has no fifo, and the ODR can be set to 400Hz. This would make it update the axes data each 2.5ms. I have programmed it to interrupt a mcu when a threshold is reached. This wakes the micro controller from deep sleep. Unfortunately it takes the Mcu about 8ms before it has woken up and is ready to read back the samples (X,Y,Z) that caused the interrupt.Is there a way to make the accelerometer to keep the data and not overwrite it? I read something about BDU (Block Data Update for LIS3DH); something like that the output data would not be overwritten until all axes had been read out. Is there anything similar that would work for H3LIS100DL? Any other trick?I know there will be lost samples, but I'm mainly interested in reading back the sample that caused the interrupt.

Hi,In CubeMx, Project Manager tab -> Advanced Settings, the "Do Not Generate Function Call" for MX_TouchGFX_Init is not working.After selecting it and generating the code, the MX_TouchGFX_Init() is still present in the main.c and going back to the Advanced Settings, the previously selected check box got deselected.This is a problem because when using the QuadSpi with TouchGFx, it needs to be mapped before TouchGFX initialization.The mapping cannot be made in the MX_QUADSPI_Init because there is no USER CODE section at the end of this function (Hey ST, what about having a user code section at the end of EVERY HAL init function???).Settings:MCU: STM32H743CubeMx: 6.1.1CubeIDE: 1.5.1Firmware Package: FW_H7 1.8.0

STM32CubeMX version 6.1.1 ，when set CAN as 1Mhz,cubeMX prompted error,PCLK1 is 36Mhz.

Hi all, I am a new STM32 user migrating from Atmel/Microchip's SAMD line. I created my first project following along the tutorials here: https://www.youtube.com/watch?v=x_5rYfAyqq0&t=682s.It's a motor driver, with some other hardware shown outside of the screenshot below, but at the moment I am just trying to get statusLED to blink. I can successfully connect to the board with an STLink, when I press debug and resume, my LED will momentarily flash which I capture on video and scope, shown in the video here.Strangely I don't lose connection to the board or anything, and my program continues to execute, but nothing else happens. As you can see from the code it's supposed to just blink every 500ms. Does anyone have an intuition as to what might be going on?Here's a video showing the momentary flash (The LED is in the bottom right corner of the board and I press the debug/resume buttons off camera) https://photos.app.goo.gl/BfGQbW1SX8EJT5eV8I am using the internal clock for d