Solved

I am trying to configure the TIM2_CH4 to capture mode on EV1 board so I can sense a fan speed from a PWM fan but I keep getting cat: read error: Connection timed outI have configured the timer as follows: &timers2{ pinctrl-names = "default", "sleep"; pinctrl-0 = <&tim2_pins_mx>; pinctrl-1 = <&tim2_sleep_pins_mx>; status = "okay";   /* USER CODE BEGIN timers2 */ dma-names = "ch3"; pwm { /* enable PWM on TIM2 */ status = "okay"; }; /* USER CODE END timers2 */ }; tim2_pins_mx: tim2_mx-0 { pins { pinmux = <STM32_PINMUX('A', 3, AF1)>; /* TIM2_CH4 */ bias-disable; drive-push-pull; slew-rate = <0>; }; };   tim2_sleep_pins_mx: tim2_sleep_mx-0 { pins { pinmux = <STM32_PINMUX('A', 3, ANALOG)>; /* TIM2_CH4 */ }; };I am using TIM12_CH1 to generate a pulse and I have shorted the two pins on the board.What am I doing wrong? Is there a better way to detect the sense on a PWM fan?

External memory, connected to a STM32MP1, is written with the STM32CubeProgrammer via USB. Here the chip to be written is written with "usb1" (STM32_Programmer.sh -c port=usb1 -d some.tsv").Here we could notice the following behavior: If more than one STM32MP1 is connected to the host system via USB, another label (usb2) is assigned. If a higher serial number is connected later, it will be assigned to usb1, and the already connected device will be assigned the new label usb2. The connected devices are displayed in the device manager as DFU Devices. There is no COM port assignment.This raises the question of how several devices can be connected to a host at the same time and assigned uniquely to enable several devices to be flashed in parallel.What is the best practice to guarantee consistent addressing of the boards.

In all the STM32s that have I2S / SAIs and ethernet that I've checked, there is this fixed oversampling ratio of 256 between master clock and sampling rate.When using the internal PLL to get the sampling clocks, no problem (amazing how good and stable these clocks are, even with the 8 MHz from the STLink, checked it with generating 24bit/192k SPDIF signals).But in my case I must use the extra "Audio Clock Input (I2S_CKIN)", which does not have the benefit of getting modified by a PLL.So my problem now: how do I get 3 different sampling rates (e.g. 48k / 96k / 192k) without dividing the clock (done that, but no space available) outside of the STM32 ?And without any downsampling by the CPU.Any ideas? Something I have overseen?

Hi,I am using touchGFX4.16.I copied the project folder for backup.When I tried to use touchGFX in the backed up project folder, an attached image warning appeared.1) What does it mean?2) What should I do to get rid of the warning? Best regards,

Per the title, I'm using USART2 with DMA transfer but for some reason the line stays LOW (active) before/after transmision.Init code is pure HAL generated, I added a "DeInit" just to make sure the UART enable wasn't persisting between resets/debug sessions but it's made no difference.No matter what I do with the control registers (UART_ADVFEATURE_TXINV / UART_ADVFEATURE_DATAINV), the data output & idle state don't seem to change.EDIT: DATAINV and/or TXINV do seem to invert the data bits but the idle line is *always* LOW when there's no data no matter what.Is this some edge case where using DMA transfer keeps the UART "active" all the time rather than releasing it to "idle" once transfer is complete?EDIT #3: It appears HAL_HalfDuplex_Init means the UART behaves this way, using HAL_UART_Init seems to allow the TX line to idle high, although now the data appears to be wrong whichever way up I invert it. Ghaaa,void MX_USART2_UART_Init(void) {   /* USER CODE BEGIN USART2_Init 0 */

I wonder whether I can connect two quad spi ap memory to the same octospi interface on stm32h730 to double the bandwidth. Or such a configuration can only be used with nor flash, not psram. Thanks.

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Hello, is there any way to use EXTI simultaneously in different ports with the same pin number?Examples for MCU STM32L071CB:Using PA4 and PB4, orUsing PA10 and PB10, orUsing PA6 and PB6, and so on

Hi, We are trying to measure distance from our sensor through an IR Translucent plastic to a curved metal surface, using a VL53L1X. We are getting reasonable results by they are rather noisy (~10% deviation at times)What sort of changes should we be experimenting with to reduce noise in our signal?

I am working with the STM32L4S9AII6 MCU on a project where I am being asked to replace an FPGA implementation with this CPU. We are maxing out all 14 DMA streams via SPIs, I2Cs, & UART. As you can imagine, I am working with some serious hard real-time deadlines. I am using FreeRTOS.I think this is a confusing topic to discuss over a forum, so let me use an example to pose my question. Lets say I have 2 SPI peripherals configured. We'll call them SPI1 & SPI2. Both transmit at say 10MHz or whatever. Both are configured to transmit in 8 bits (1 byte) at a time. Both NSS lines are controlled through software to allow this enable line to be pulled low for the entire duration of a block transfer (multiple bytes per DMA request). Now lets say SPI1 attempts to transmit a block of 8 bytes. Immediately after, SPI2 also attempts to transmit a block of 8 bytes. Question: Does the DMA engine block on SPI1 until SPI1 has finished transmitting all 8 bytes and then allow SPI2 to begin transmit

Hi,I am currently working on a bluetooth application developing it on STM32WB55 Nucleo (FW version V1.13.1, BLE Stack Full)Since the device will have to be connected to a battery, I was researching the use of Low Power modes.Unfortunately, I'm not clear on the correct procedure to send in STOP2 mode the whole system, keeping the bluetooth active, I've already read questions on the forum and examples provided by ST but I'm not very clear on the whole procedure.Reading on the forum, I understood that the second core is self-managing with regard to low power, and the first core can not control it otherwise it would break the power management.Hence, there would be my questions:- The correct procedure to follow on the first core, to send it into STOP 2, what would it be?- Would there be any initialization or procedure to take into account to do also for the second core at the beginning?- Since the system will go in that mode only when both cores are in the same state, how can I control the

HAL_PWR_EnterSTANDBYMode() will still wait properly, but HAL_PWREx_EnterSHUTDOWNMode() will immediately return to RUN mode.What do you think is the cause of immediate wakeup?​As shown below, the only code difference is whether to enable HAL_PWREx_EnterSHUTDOWNMode () or HAL_PWR_EnterSTANDBYMode (). __HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU); __HAL_PWR_CLEAR_FLAG(PWR_FLAG_SB); __HAL_RTC_WAKEUPTIMER_CLEAR_FLAG(&hrtc, RTC_FLAG_WUTF); while(1) { HAL_PWREx_EnterSHUTDOWNMode(); // HAL_PWR_EnterSTANDBYMode(); }Best regards,​

I've been trying to develop a C++ application which uses the C based MC SDK (would really be nice if STM would provide a supported wrapper). I'm getting:arm-none-eabi-g++ -o "nucleo_demo_y4.elf" @"objects.list" -mcpu=cortex-m4 -T"C:\Users\dustin\repos\wheel\nucleo_demo_y4\STM32CubeIDE\STM32F302R8TX_FLASH.ld" --specs=nosys.specs -Wl,-Map="nucleo_demo_y4.map" -Wl,--cref -Wl,--gc-sections -static --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -Wl,--start-group -lc -lm -lstdc++ -lsupc++ -Wl,--end-group c:\st\stm32cubeide_1.8.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.9-2020-q2-update.win32_2.0.0.202105311346\tools\arm-none-eabi\bin\ld.exe: ./Application/User/wheel_ctrl.o: in function `Wheel::WheelCtrl::GetParam(Driver::CANDataPacket*)': C:/Users/dustin/repos/wheel/nucleo_demo_y4/STM32CubeIDE/Debug/../Application/User/wheel_ctrl.cpp:62: undefined reference to `RI_GetRegCommandParser(MCP_Handle_t*, unsigned short)' collect2.exe: error: ld

Have a file and I am trying to transfer it to SAI2. For some reason ???? I am not getting into the DMA Callback. DMA is in normal mode. Can anyone shed any light on this? /* USER CODE BEGIN 2 */ HAL_DMA_RegisterCallback(&hdma_sai2_a, HAL_DMA_XFER_CPLT_CB_ID, &DMA_XferCmplt_Callback); /* USER CODE END 2 */   /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) { if (ISR.DMA_TxCmplt) { ISR.DMA_TxCmplt = F; /* * after each DMA check if high current * if NOT then disable SAI dma */ if (adcValue[1] < (HIGH_CURRENT)) hsai_BlockA2.Instance->CR1 &= ~SAI_xCR1_DMAEN; }   if (ISR.A_ConversionComplete) { ISR.A_ConversionComplete = F; /* * checks to see if actuator has * bottomed out due to high current */ if (adcValue[1] > (HIGH_CURRENT)) { hsai_BlockA2.Instance->CR1 |= SAI_xCR1_DMAEN;   /* * if we are engaging and high current * shut off motor drive and alarm */ if (ISR.

Hi,1- How do I let CubeMX know the SD pin detect, I've set pin PC13 as card_detect, GPIO input, pull-up, but then what?2- Should I use the open source FATFS "https://elm-chan.org/fsw/ff/00index_e.html"? How?Thank you

I thought HANDLE was part of the stm32 hal library so I tried including stm32h7xx_hal.h however it did not resolve the issue

In our application, we don't necessarily need to know the true distance, we only need to know when it's in a certain range, and it doesn't matter if that range is represented as 30-40mm or 50-60mm, only that is consistent. Can we get away with not needing calibration if this is the case?We are using a VL53L1X aimed through a IR transparent plastic.

From what I gather, sunlight causes the sensor to return a much larger value. Should this always be the case? Or is sunlight going to cause a variety of different values. I have mixed results in testing.

I use MX25LM51245GMI00 flash. But I dont have few pins so I use 4 pins for OCTO SPI. Does it work 4 pins OCTOSPI? What do I it for 4 pins OCTOSPI. What changes do I need to make

We are prototyping a ST95HF NFC in combination with an embedded Linux board.Since we can only find Linux demo code for the ST3916 on your website wetried to combine the ST25r95 rfa library found in STSW-ST25RFAL003_v2.6.0with the Linux demo code found in STSW-ST25R013 - Linux demo of ST25R3916 for Raspberry Pi using X-NUCLEO-NFC06A1 which has demo code based on RFAL 2.2.0Our efforts so far to combine the code is able to to discover the technology of the card presentedbut after this we end up with communication failures to/from the ST25r95 chip.Is there code available of the Linux demo project for the ST25r95 forversion v2.6.0?We successfully used the poller based version of Linux_RFAL_st25r95_v2.0.4 to read NFC cards, but this is version is too CPU intensive and version 2.6.0 seems to be a much improved version.

hi I have the ihm08m1 how can I change from 1 shunt to 3 shunt if by default it is soldered on 1 shunt?

Currently I am trying to set up the emmc boot on a stm32mp157. I have mirrored the partitions of a working SD card to the emmc with:sgdisk -e /dev/mmcblk1 sgdisk -R=/dev/mmcblk2 /dev/mmcblk1 sgdisk -G /dev/mmcblk2   dd if=/dev/mmcblk1p1 of=/dev/mmcblk2p1 bs=512 conv=fdatasync dd if=/dev/mmcblk1p2 of=/dev/mmcblk2p2 bs=512 conv=fdatasync dd if=/dev/mmcblk1p3 of=/dev/mmcblk2p3 bs=512 conv=fdatasync dd if=/dev/mmcblk1p4 of=/dev/mmcblk2p4 bs=512 conv=fdatasync dd if=/dev/mmcblk1p5 of=/dev/mmcblk2p5 bs=512 conv=fdatasync dd if=/dev/mmcblk1p6 of=/dev/mmcblk2p6 bs=512 conv=fdatasync   echo 0 > /sys/block/mmcblk2boot0/force_ro dd if=/dev/mmcblk1p1 of=/dev/mmcblk2boot0 bs=512 conv=fdatasync echo 1 > /sys/block/mmcblk2boot0/force_ro   echo 0 > /sys/block/mmcblk2boot1/force_ro dd if=/dev/mmcblk1p2 of=/dev/mmcblk2boot1 bs=512 conv=fdatasync echo 1 > /sys/block/mmcblk2boot1/force_ropartition is fsbl1, fsbl2, ssbl, boot, rootfs1, rootfs2.Then i used the OTP boot device conf

I have recently started with STM32G0. I want to configure and use FDCAN. So, if there are any implemented examples and or some programming manual on this; please share.Thank you.RegardsJayam Srivastava.

GreetingsI'm using an STM8S003F3 TSSOP20 (my first STMicro) for a simple project with one input (low frequency PWM) and one output (high frequency PWM). I seek to keep it as simple as possible. Since I'm not familiar with STMicro MCU's, I would like to confirm the wiring of this:100nF between NRST and VSS1uF between VCAP and VSS1uF and 100nF in parallell between VDD and VSS+5V to VDD0V to VSSVDD, VSS, NRST and SWIM connected to ICSP plug.PWM input on PD2PWM output on PD3All other pins connected together, with one configured as output, driven to 0VThanks in advance for any helpful advice!

Hello,I am trying to find an example or application note that describes how to do OOB pairing using an NFC tag and the STM32WBx series. Has anyone out there successfully done this before, or can you point me to some good information for doing this?Thank you for any help.