STM32 MCUs Products

Hello! I'm now using a STM32F469 to drive a screen with MIPI-DSI Interface. I need to send the initial codes with low power command transmission, and then drive the screen in video mode. I think LPDT it is supported by this MCU, but I'm not sure how to use it. Could anyone give me some advice or instructions?

Hello, when I was using this chip, STM32F427ZGT6, it could print data, but the delay was incorrect. After 5 seconds, it was only a few milliseconds. Due to the inaccurate delay, the timing sequence became disordered

Dear Sir, My board is equipped with STM32G431 MCU.  I found that the UART DFU mode of my board does not work after the flash of the MCU has been programmed. The UART DFU mode can only work with a blank MCU that have not been programmed before. I have only used the default setting in the CubeProgrammer. I appreciate if you can give me any suggestion.

I call HAL_UART_Init() with LPUART1 at 20Mbaud but when I activate assertion it fail at IS_UART_BAUDRATE().The IS_UART_BAUDRATE() is not correct for LPUART that can have a baudrate up to 53.3 Mbaud.Also for UART, the comparaison in IS_UART_BAUDRATE() should be <= instead of < like in IS_LL_USART_BAUDRATE().

Heyho,do all SAIs in all MCUs offer the SPDIF output feature?CubeMx and online MCU selectors do not show this info, no time to check 20 more datasheets.For the few STM32 I know and worked or played with (G4, F7, H7) the answer is yes.Merci!

Hello,Hello, in our project we are using an STM32N6 MCU and an external flash from ISSI with this MCU. Datasheet of the flash's link in the below.https://www.issi.com/WW/pdf/25LX-WX032-064.pdfDuring debugging, we read the flash using standard commands, and the values we read appear as shown in the image.Everything works fine up to the code marked with the red box;

Hi Team,As we are going to use RAM – IC CY62136EV30 (TSOP-44) in our new project with ST micro STM32F407ZG (LQFP-144).Do we need any impedance matching for 6-layer board?Can you please suggest the same. Crystal frequency we taken 16MHz for the MCU.Thanks.Regards,Ashutosh

System OverviewHardware ConfigurationMicrocontroller: STM32H7S3L8H6Memory ArchitectureXSPI1 (Flash, MX25UW25645GXDI00): 32MB, accessed via GPIOP/GPIOOClock: PLL2S source, Prescaler = 3flash_xspi_handle.Instance = config->instance; flash_xspi_handle.Init.FifoThresholdByte = 1; flash_xspi_handle.Init.MemoryMode = HAL_XSPI_SINGLE_MEM; flash_xspi_handle.Init.MemoryType = HAL_XSPI_MEMTYPE_MACRONIX; flash_xspi_handle.Init.MemorySize = HAL_XSPI_SIZE_256MB; flash_xspi_handle.Init.ChipSelectHighTimeCycle = 2; flash_xspi_handle.Init.FreeRunningClock = HAL_XSPI_FREERUNCLK_DISABLE; flash_xspi_handle.Init.ClockMode = HAL_XSPI_CLOCK_MODE_0; flash_xspi_handle.Init.WrapSize = HAL_XSPI_WRAP_NOT_SUPPORTED; flash_xspi_handle.Init.ClockPrescaler = 3; flash_xspi_handle.Init.SampleShifting = HAL_XSPI_SAMPLE_SHIFT_NONE; flash_xspi_han

I am trying to create two phase-shifted PWM waves on an STM32L4 TIM1 using asymmetric mode. From what I understand, I have to:enable output on GPIO channels 1 and 3enable output compare 1,2,3,4 and output compare 1,2,3,4 as asymmetric PWM modeThen, I setCCR1 = 0, CCR2 = ARR, and CCR3 and CCR4 to the outputs provided by the function below. Then I only enable channel 1 and channel 3 as outputs..?So output compare 1 and 2 work together to produce the first PWM on channel 1. And output compare 3 and 4 work to produce the second PWM on channel 3.This is what I understand from the graph on page 754 in the RM. But it is not allowing me to change the phase shift while still maintaining 50 % duty cycle on both waves. When I print my CCR3 and CCR4 values, they are exactly ARR apart, which would make me think that they should produce a 50% duty cycle wave. But they don't. I'd appreciate an

Hi,I am working on an application for the STM32N6 (using zephyr) that streams data from four SPI interfaces (SPI1, SPI2, SPI3 and SPI6) via Ethernet (UDP). I am using full-duplex SPI transfers and GPDMA1.Everything works fine up to SPI clock frequencies of 22MHz on all four SPI interfaces. However, as soon as I increase the SPI clock to beyond 25MHz, I start getting DMA transfer errors and erroneous data in my buffers. Obviously, 22MHz full-duplex on four SPI interfaces is already quite fast, but if possible, I would like to go beyond that.I know that Ethernet is not the bottleneck here, since this happens even if I do not stream all data over Ethernet.I was just wondering: Is this performance expected, e.g., due to the high load on the memory bus? What measured could I take to increase performance further?Thanks for your help!

Hello,I’m currently testing the CSI–DCMIPP interface on the Nucleo-N6 board. I’m following various examples, but the variable used in DCMIPP_Start (lcd_bg_buffer) is not receiving any data. Is there something I might have configured incorrectly?At the moment, the buffer is configured to be stored in ARAM2.

Hi,I’m working with the STM32F407VGTX and I am using GPIO PA4 as the SPI chip-select (CS) pin. In my GPIO initialization, I set the PUPDR register to configure PA4 with a pull-up, expecting the CS pin to remain HIGH when idle. However, I observe on my logic analyzer that after initialization PA4 goes HIGH briefly, then returns LOW (its default state) even though the pull-up is set. I am attaching a screenshot of my logic analyzer for reference.Could anyone please explain why the pin doesn’t remain high with the pull-up configuration, and what’s the correct way to configure PA4 so that CS is HIGH when SPI is not active?Thank you! 

I turned off all the other configuration aka Alternate Functions..only enabled GPIO PA5 as output Pushpull mode, low freq.its doesnt turn on or off individually..tried to turn on and off using HAL as well as direct registers..both work only when PA4 turns on ...what i mean if i want to turn on PA5 i should turn on PA4, then only it works..what is this causing this issue.can you help me out.tried on multiple hardwares..same issue so hardware issue eliminated, no pin short circuit. 

Hi, I bought 50pcs STM32L151C8T6A from one Chinese online vendor, which has device marking with QR code.I encountered an issue while using the new version chip, after initial power-on, the overall sleep current of the product is approximately 5uA(STM32L151C8T6A in stop mode), When I reset the product's hardware multiple times, there is a high probability that the product's sleep current will reach up to 1.6mA. Once this occurs, the product can only return to normal by being powered on again.With the same hardware, replacing the STM32L151C8T6A with an older version will prevent the issue from occurring.This is a mature product, and this is also my first time using the new version of STM32L151C8T6A. Is the software for the old and new versions incompatible? What should I be aware of?ps: I am using the STM32L series standard library.  

Hi,I'm trying to implement an external loader for the Arduino Giga R1 board with AT25S128A 128Mbit of external flash. After following the guide given in the external loader repo, I'm running into the problem, that I can erase, write & read from the memory fine, however, as soon as I try to turn on memory mapped mode, all the data reads as 0xFF...FF, both in code and in the STM32CubeIDE memory viewer. I think my problems could be related to MCU configuration, I would be grateful if someone could give some guidance, see the relevant code below and attached. quadspi.c:uint8_t CSP_QSPI_EnableMemoryMappedMode(void) { QSPI_CommandTypeDef sCommand = { 0 }; QSPI_MemoryMappedTypeDef sMemMappedCfg = { 0 }; // Enable Memory-Mapped mode sCommand.InstructionMode = QSPI_INSTRUCTION_1_LINE; sCommand.Instruction = QUAD_INOUT_FAST_READ_CMD; sCommand.SIOOMode = QSPI_SIOO_INST_EVERY_CMD; sCommand.AddressMode = QSPI_ADDRES

I'm in the middle of attempting to reconfigure the clock tree on my STM32F303K8. The old clock tree looks likeThe new clock tree looks like The old clock tree works fine. The new clock tree always fails on boot; not always in the same address but always in the

Hi Team,I have few questions regarding stm32h7 errata.Errata 2.2.21, Can silicon revision 'V' support a cpu frequency of 480 Mhz ? If yes, why is it showing 'P' for v revision.    2. Can I please ask if there is a fix in the HAL for the below given SPI errata  (from 2.22.2 to 2.22.6)? 

I'm bringing up a design based off the STM32H573 and I believe I'm having a number of issues that are probably sharing a common thread with bad hardware. I don't usually screw those things up, but I guess I got unlucky this time.1) PC1 when configured as a (GPIO) output cannot drive a load. Works as a GPIO input. Sometimes, when configured as output after configuring it as input, it would start working and then die (this happened twice in two days). Pulls, OD, nothing seems to make a difference. Replicated over two boards -- the second board with no ESD damage possible. 2) HSI seems to be off by 9% (HAL_Delay and UART are showing this error). Tested on one board only. Here is my schematics:

HI USB-C Input (5–20 V PD) + USB-C Data (USB2.0 D+/D– to STM32H745) + charging phone at same time + Audio data transfer Problem: When I connect the USB-C input supply (PD 5–20 V), the phone only charges and the audio USB port does NOT appear.But when I do NOT provide PD input power, the audio USB port appears correctly.And if the audio port is already active, then when I connect the PD input afterwards, the phone does NOT charge — only the audio stays active  

Hello everyone,This is my first post on the platform, so please bear with me.I would like to write raw data to an SD card very quickly.After quite a bit of research, I decided to use SDMMC with MDMA, and I want to write directly to the SD card blocks to avoid latency associated with the FATFS overlay.Apart from an old post that explains how to configure MDMA and link it to SDMMC, I haven't found any concrete examples of a function that allows reading and writing to the SD card.Could you give me a simple example of writing and reading to use MDMA with SDMMC to write to the SD card, or point me to existing projects or examples that I may have missed?Thanks in advance. 

I'm trying to port a proprietary code that is designed for another STM32H753 plateform, to a STM32H753-EVAL board.My code remains stuck waiting for HSERDY bit.The setup I am doing looks identical to STM32CubeHW example but I guess I forgot something: - set LDOEN in PWR_CR3 register and wait for ACTVOSRDY- set voltage scaling to VOS1 (bits 14 and 15 in PWR_D3CR register) and wait for VOSRDY- set bit HSEON and wait for HSERDY -> bit is never set I setup the eval board JP10 to be powered up through the jack (external power supply) If I power the board through STLink, I have no issue. Am I missing anything ?

I want to use N657B0 to drive VD55G0, and the camera side can already enter the Stream state. After I use the function HAL_DCMIPP_CSI_PIPE_Start, I track the variable csi_instance through single-step debugging and find that several bits in its SR1 register are inconsistent with the normal state. And I find the defination about these.The normal state is 1 but I get 0.Could you please tell me what the reason for this might be? Is the issue caused by a voltage supply problem in the hardware connection, or by inadequate rate matching in the port?

I have a STM32U595 and I use the RTC in binary mode.If an SSR underflow occurs during Vbat mode, will the SSRUF be set so after power recovery I can manage the interrupt ?

From my understanding all STM32N6 chips need a external flash chip and there's a static stage 0 boot loader.  So if this is true is there any limitation's on the brands of flash or speed/address bit size limitations? With the previous stage 0 bootloader for a different non ST product had a lot of limitation on the flash that could be used.* 16 bit flash address only* Only support a few brands of flash chips.  

Hi Everyone,I am working on a project with TouchGFX. I'm working with STM32U5G9ZJT6 and I have an external RAM APS12808L-OBM-BA connected via HSPI (Fclk-hspi 100 MHz) in mapped mode. The project is working, but the image animation are not working well. To solve it I have decided to increase the HSPI frecuency.The APS12808L-OBM-BA memory can operate at up to 200MHz. However, when I exceed 118MHz, I can't map the memory. You can see a picture below reading the memory after mapping (you see "?").I have changed the memory read latency (MR0 and MR4) to increase the Fmax.I need all of suggestions f