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Lets say i call HAL_SPI_TransmitReceive_DMA() and then I get an error or I decide to timeout while waiting for SPI data. What is the correct way to recover from an SPI error or a timeout?I use this code and it seems to work: // De-init SPI2 HAL_SPI_DeInit(&hspi2); // Reset SPI2 __HAL_RCC_SPI2_FORCE_RESET(); __NOP(); __NOP(); __HAL_RCC_SPI2_RELEASE_RESET(); __NOP(); __NOP(); // Reset DMA1 __HAL_RCC_DMA1_FORCE_RESET(); __NOP(); __NOP(); __HAL_RCC_DMA1_RELEASE_RESET(); __NOP(); __NOP(); // Re-init DMA and SPI MX_DMA_Init(); MX_SPI2_Init();

A particular STM32MP1 based board uses the USB OTG interface configured to the cortex A7. Is there any guidance how to configure the kernel so that it will use the USB device port with a gadget driver, so that the host sees it as keyboard, serial port, mouse, audio interface ? For example, as pictured, a snippet of usb otg in the .dts ( high speed). It uses dwc2 as driver for OTG function, How to assign the device descriptor to the otg/usb interface ? Full speed would be fine as well. In the kernel sources there is "legacy" and "function" code.

I have an array of times, currently TIM3 and TIM4 on a STM32F373.  I may want to add more timers in the future, so I enable them in a loop.  Is there a way to ensure they all start at the exact same time or will the loop iteration be so fast that they will look synced on a scope?  I'm also thinking an interrupt may occur while the loop is in the process of enabling timers, causing them to start out of sync.  Is the only way to use the external interrupt with a master timer and have all other timers as slave?  ( can I trigger it in software only, eg. setting a master timer to expire after 0 ticks?

Using CubeIDE v1.13.0, installed this week.On STM32F0Discovery (STM32F051): /* USER CODE BEGIN WHILE */ while (1) { HAL_UART_Transmit( &huart1, "Hello, UART1 world!\r\n", 21, 10000 ); HAL_GPIO_TogglePin( LD3_GPIO_Port, LD3_Pin ); HAL_Delay( 500 ); HAL_UART_Transmit( &huart2, "Hello, UART2 world!\r\n", 21, 10000 ); HAL_GPIO_TogglePin( LD4_GPIO_Port, LD4_Pin ); HAL_Delay( 500 ); /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ } /* USER CODE END 3 */The first HAL_UART_Transmit is to UART1, configured as full-duplex.This works fine - the full string is transmitted each time:The second HAL_UART_Transmit is to UART2, configured as Single Wire Half Duplex.This does not quite work - only the 1st two characters are ever transmitted:If I single-step the transmit loop in the HAL_UART_Transmit for UART2, it does transmit the entire string.So what's going on here? Is there some gotcha! with Single Wire Half Duplex?(Screenshots are from YAT; same results

For calculating apriori PID parameters when running ST FOC SDK, you obviously need to consider the sampling time of the regulator for the integral term. According to UM1052, current sensing is synchronous to the PWM. Is the sampling period of the current sensing ADC the same as the sampling period of the current PI controllers ?Again, referencing UM1052, page 38/178, formula for Ki; is T equal to 1 / pwm_freq ?@cedric H 

Hi :)Working on the EVA32MP257F, I am trying to generate the openstlinux for it, however, I see no target MACHINE in the yocto project for it. I guess that a private repo is required for this?Also, can I apply the RT patch provided for the MP1 on top of it?Adrian

In STM32CubeIDE, there doesn't seem to be any way to access the I2S and I2C interfaces for the CS43L22 on the STM32F407G-DISC1 board. There is nothing in the System Core, Analog, Timers ... Middleware and Software Packages configuration area of CubeIDE.I will be generating my own audio samples, and they will be sent to the DAC in a timer interrupt. I will not be using DMA.I have gathered numerous files that perform the higher-layer functions necessary, but I cannot find anything related to the low-level hardware control. For example, the schematic for the board indicates that the I2C address for the codec is 0x94. When I search through all of the files that I have found for "94", I don't find anything related to this address and I2C.There must something out there because many people are successfully accessing this codec. I just cannot find it.

Hello everyone,I am trying to establish a serial communication between a Teensy 4.1 and a Nucleo F401RE board. The Nucleo board reads data from some VL53L7CX ToF sensors (this part works) and send them via Serial to the Teensy (this one doesn't work).Indeed, the Teensy never receives any data, except after the end of the initialization of the ToF sensors: it receives a 0 integer. However, at this moment of the code, no data are supposed to be sent by the Nucleo. So I don't understand where that could come from and why I can't receive the actual data written on the Serial port. Do you have any idea about that please?I have made the following wiring:Pin 0 of Teensy linked to pin PA_9 (D8) of the NucleoPin 1 of the Teensy linked to pin PA_10 (D2) of the NucleoGND of the Teensy linked to the GND of NucleoAlso, here are my two codes (both were developed with the Arduino platform). The 1st one is the Nucleo's code and the 2nd one is the Teensy's code:NUCLEO /** ************************

I've used CubeMX to enable in PA4 as in input with EXTI interrupt enabled on a STM32F373.  It works well, but how to I enable the device with this interrupt disabled by default?  HAL seems to enable the interrupt and then allow the 'user' code' to be include just after but that will in fact trigger an interrupt in my case since a second device is toggling that pin quickly.  I only want the interrupt to be generated after some time after the device has booted to ensure it is ready. Thanks!

I am using stm32f407vgt6 mcu and sending data in canbus but I want to receive ack notification

ok so when i debug and step through my code the hse ready bit in the rcc-cr register sets to one but when i run it it hangs at my while loop waiting for it to set why does this happen 

I am trying to send some bytes over an SPI via DMA on bare metal STM32G441. But there is nothing being sent and I cant find why. I only used DMA on ST32F devices that do not have the DMAMUX. Please note that SCK and MISO are not used here. I looked at a generated code from CubeIDE which does not seem to do anything else. I expected the SPI to send 1000 bytes.Here is my code. The comment shows what is happening in each line as I am not using CMSIS. The bit definitions are corresponding to the bits: bit5 = (1<<5) for example.     volatile uint8_t buf[1000] = {0b11001000}; // initialize RCC->AHB1ENR |= bit0|bit2; // enable DMA1 and DMAMUX clocks RCC->AHB2ENR |= bit0; // enable GPIOA clock RCC->APB2ENR |= bit12; // enable SPI1 clock GPIOA->MODER &= ~(0b11<<14); GPIOA->MODER |= (0b10<<14); // PA7 alternate function GPIOA->AFRL |= (5<<28); // PA7 SPI1 MOSI GPIOA->OSPEEDR |= (0b11<<14); // MOSI speed high DMA1

Hi every one ..I designed custom board for stm32h745xit6 .My TouchGFX working fine with internal flash .The core board has mt25ql256a and connected as under PB2 CLKPG6 NCSPF8 D0PF9 D1PF7 D2PF6 D3I generated STLDR as explained in ST videos tutorial.my generated STLDR file is visible and selected as external loader , but it gives error when programming 0x90000000 ...kindly help methanks in advance.IN

Hello, I want to take data from ADC input and store them on the internal flash memory of my STM32f769i-discovery board. Can you help me about the use of flash memory? Thank you.

Hi,I have troubles with the new version of SPC5Studio.I have made a bootloader with SPC5Studio V. 5.8.1 which is working fine but when I have remade it with the new SPC5Studio software it doesn't jump to application code. This is what happens: The bootloader starts correctly when I send the id upgrade message from CAN. It saves correctly the application code in Flash memory. After that, I turn off the device and then ,after few seconds, I turn on it. After few checks it jumps to the application code but here is when I saw two different behaviours : bootloader's code with SPC5Studio version 5.8.1 can jump to application code, the one with SPC5Studio version 6.0.0 fails. They have the same source code, same memory map and the only few changes are that which are generated with "Generate SPC5 Application" button. Any suggests? Could I receive SPC5Studio v. 5.8.1 version in order to compare the auto-generated code? Thanks in advance. P.S. Micro is SPC582B60E1  

I use spc58nh-disp develop board.I want to enter the standbymode. but can't enter.If i setup SPCSetRunMode(SPC5_RUNMODE_STANDBY0) in main loop, It's behave.But after i get the RTOS, core0, core1 and core2 working, If i work SPCSetRunMode(SPC5_RUNMODE_STANDBY0), is not working.what is problem?ex)--> standby mode working codeint main(void) { componentsInit();wkpu_lld_start(&WKPUD1, &wkpu_config_wkup_cfg);if (SPCSetRunMode(SPC5_RUNMODE_STANDBY0) == CLOCK_FAILED) {SPC5_CLOCK_FAILURE_HOOK();}runCore0();runCore1();vTaskStartScheduler();   for ( ; ; ) {  }} --> standby mode not working codeint main(void) { componentsInit();runCore0();runCore1();wkpu_lld_start(&WKPUD1, &wkpu_config_wkup_cfg);if (SPCSetRunMode(SPC5_RUNMODE_STANDBY0) == CLOCK_FAILED) {SPC5_CLOCK_FAILURE_HOOK();}vTaskStartScheduler();   for ( ; ; ) {  }}  

Hello together,I am looking for some time now fort an Application/Design note/guide for the injection pre-driver L9781 without too much success.Does anybody know if such thing exist? Thanks and I wish you a sunny day!Best regards.

Hi Team,    Any Transceiver IC support up to 3GHz range in STMicroelectronics? And how to interface with controller.!  Thanks and Reguad,Aravind

Hello,why is the MSC Host class not active in the Cube IDE configuration tool for STM32U575 series MCUs?I am developing a product based on STM32U575VGT6 and need the USB Host functionality for firmware updates and file storage to USB flash key. As I can see, the hardware of the selected MCU can ensure such functionality. However, the option during configuration is not selectable. Why is it so, and will it be available one day?Thanks!

I read from the OpenOCD docs in spc5 studio, I can only found sample instructions OpenOCD for spc58 family. But can't find any info about spc57 family support. Did spc5 studio openocd also working for other spc5 mcu family? 

- STM32G0B0 USART1 receiving RS485 data via interrupt driven data collection.   Our micro is attached to a RS485 interface(38400, 8,N,1) receiving BACnet data. The data taken on the 485 bus is different from what we receive in the USART buffers. We have reviewed the USART config many times over and can not find anything obvious.485:        55 FF 01 11 0C 00 00 DCUSART:  55 00 7F 7A DE FF EB 00Notes: All the 485 packets seem to be 8 bytes in length and the micro received packets can be seven or 8 bytes. The scope trace is taken going into the micro after the 485 chip(THVD1410DR). The scope trace seems to show the second byte as all ones.We have tried different USART1 configs but the received data always seems wrong after the first byte. Any help is appreciated.   LL_USART_InitTypeDef USART_InitStruct = {0}; USART_InitStruct.PrescalerValue = LL_USART_PRESCALER_DIV1; USART_InitStruct.BaudRate = 38400; USART_InitStruct.Da

I use SPC58nh-disp.I use "time.h" and clock() function.but occur errorlike" c:/spc5studio-6.0/eclipse/plugins/com.st.tools.spc5.tools.gnu.gcc.ppcvle.win32_4.9.4.20200908161514/toolchain/bin/../lib/gcc/powerpc-eabivle/4.9.4/../../../../powerpc-eabivle/lib/e200z4\libc.a(lib_a-timesr.o): In function `_times_r':timesr.c:(.text._times_r+0x2): undefined reference to `times'  "how to solve??  or Are there other ways to measure execution time???? 

We are using the ADC on an STM32G4xx for a safety project. The safety manual requires us to read VSS or VDD for ADC diagnostics. STM32G4 has ADC channel 0 internally connected to VSSA, so we are trying to use HAL_ADC_ConfigChannel() to configure ADC_CHANNEL_0.Unfortunately, HAL_ADC_ConfigChannel() asserts on IS_ADC_CHANNEL(hadc, sConfig->Channel) because IS_ADC_CHANNEL() does not check for ADC_CHANNEL_0. I would assume this is a bug in stm32g4xx_hal_adc_ex.h since all ADC instances in the G4 do support VSS as valid input channel (see reference manual section 21.4.4).Can someone please look at this?Regards, Norbert

Hello, I have an STM32L010F4P6. I am using HAL libraries, STM32Cube IDE 1.10. And i wrote my program in language C. I must set optimalization to -Os. (Low space) My issue is little bit mysterious. I am using LPUART (115200 8N1) for communication. When I flash fw and run a code all work perfectly, but when i reset the STM32 (unconnected and connected power or terminate by IDE, unconnect ST-link, reset by ide) the MCU Transmit wrong data in response. I could not debug (because -Os) and also because it failed after reset