Solved

The chip I use is STM32G031G8U6, and there seems to be no HAL_GPIO_EXTI_Callback () function in STM 32G00xx _ HAL _ GPIO. C file. What's the matter? The general function of my code is to eliminate the jitter generated when the rotary encoder rotates. Please take the trouble to answer your questions. If there is anything wrong with the following code, please correct it!  ;)   /*注意！ 单片机上电后A、B相默认输出高电平，第一次转动后A相先产生下降沿再产生上升沿，所以应当先判断A相的下降沿， 再判断A相的上升沿。如果先判断上升沿并检测这时候的B相电平就会导致第一次向新方向旋转时无效！ */ void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) // 通用EXTI回调用于判断旋钮左转or右转 { static uint8_t B_last_level = 0; // 检查中断源是否为 KEY3_EXIT15_Pin if (GPIO_Pin == KEY3_EXIT15_Pin) { // 获取当前A相电平 uint8_t currentA = HAL_GPIO_ReadPin(KEY3_EXIT15_GPIO_Port, KEY3_EXIT15_Pin); if (currentA == GPIO_PIN_RESET) /* A相先下降，触发第一次中断，检测并记录B相的电平状态 last */ { // 记录B相旧的电平状态last B_last_level = HAL_GPIO_ReadPin(KEY5_Input_GPIO_Port, KEY5_Input_Pin); } else if (currentA == GPIO_PIN_SET) /* A相后上升，检测此

Good morning. I am working with the Discovery kit with STM32H7B3LI MCU and want to get its internal resistance. I want to use 10 buttons, each with one resistance, and then get the correct value for my MCU. I already know how to get the values between 12000 and 64000. but I do not get what Voltage they describe. I saw on the datasheet of the Chip that it has a linear relation with the voltage and receives a voltage between 1.62 and 3.6V. Still, I have no accurate Information on the internal resistance to calculate my voltage divider. I can do it with the information I have, but I feel like I am missing something. When I put a 120-ohm resistance or shortcut directly to the ADC with 3.3V, it also gives me the maximum value.

Hello, I wanted to try I2C communication on my Nucleo board since I'm planning to use it in one of my designs. I connected together pins of I2C1 and I2C2, turned on internal pull-ups on both sides for all the pins and wanted to transmit "HELLO" from one to the other.Code for transmitting:HAL_I2C_Slave_Receive_IT(&hi2c1 ,(uint8_t *)RX_Buffer, 5);status = HAL_I2C_Master_Transmit(&hi2c2, 72 << 1, *data, 5, 80000000);After receiving the data however, even though status is set to HAL_OK it is completely garbled: I looked at the signal waveforms on my osciloscope with the logic analyzer enabled, and it shows that it's exactly what was transmitted:After that I thought that it might be an issue of the internal pull-ups not being strong enough, so I added 1K resistors on both data and clock lines, but the data in the receiving buffer is exactly the same. Does anybody know what am I doing wrong? 

I recently got another bluepill board (stm32f103c8t6) to replace the old board, and I could not connect to it using stlink. Using OpenOCD: Open On-Chip Debugger 0.12.0+dev-00600-g090b431b1 (2024-09-13-19:14) [https://github.com/STMicroelectronics/OpenOCD]Licensed under GNU GPL v2For bug reports, readhttp://openocd.org/doc/doxygen/bugs.htmlInfo : Listening on port 6666 for tcl connectionsInfo : Listening on port 4444 for telnet connectionsInfo : STLINK V2J45S7 (API v2) VID:PID 0483:3748Info : Target voltage: 3.262724Info : Unable to match requested speed 8000 kHz, using 4000 kHzInfo : Unable to match requested speed 8000 kHz, using 4000 kHzInfo : clock speed 4000 kHzInfo : stlink_dap_op_connect(connect)Info : SWD DPIDR 0x2ba01477Info : [STM32F103C8Tx.cpu] Cortex-M3 r2p0 processor detectedInfo : [STM32F103C8Tx.cpu] target has 6 breakpoints, 4 watchpointsInfo : [STM32F103C8Tx.cpu] Examination succeedInfo : starting gdb server for STM32F103C8Tx.cpu on 3333Info : Listening on port 3333

Hello,  I am working with STM32G030K8T6 microcontroller and I am using an independent watchdog (IWDG). The device goes into standby mode under certain conditions, but since I cannot turn off the IWDG, I am trying to reset the IWDG by waking up with RTC wake-up before the watchdog expires. The reset time of the IWDG is set to 32.8 seconds, so I am trying to set the RTC wake-up timer to 30 seconds so that the device wakes up before the IWDG expires. During normal operation I disable RTC wake-up, before going into standby I enable it and after 30 seconds I expect the RTC wake-up interrupt to run and reset the IWDG with the “HAL_RTCEx_WakeUpTimerEventCallback” function. However, after standby the system seems to reset completely and the wake-up callback function does not work, so the device resets without resetting the IWDG. My thought was that the “HAL_RTCEx_WakeUpTimerEventCallback” function will work while in standby and then it will go back to standby mode. But it doesn't work lik

I am using the latest version of CubeIDE (1.17.0), a STM32F765 Nucleo board with Ethernet. I am configuring the project to run lwIP using the internal Ethernet MAC. I am using FreeRTOS (CMSIS V2). CubeMX configures this LWIP_RAM_HEAP_POINTER to a default value of 0x30004000 which is NOT a valid address in the processor. I have gone through the reference manual to find out that nothing is present on this address and it is a reserved address. This causes a hardfault whenever I execute the code. However, if I comment the definition of LWIP_RAM_HEAP_POINTER, in that case lwIP uses normal buffer declared in RAM as heap and my code runs without any problem. I am making a course on this, so I just wanted to confirm if this is a bug in CubeMX or what?  

Hi everyone! I'm here with my devkit and trying to have FDCAN working properly! I compiled the Yocto distribution for the board and I followed all the tutorials in the wiki ( https://wiki.st.com/stm32mpu/wiki/Category:CAN ) and here's what I came up with: I initialized m_can1 &m_can1 { pinctrl-names = "default", "sleep"; pinctrl-0 = <&m_can1_pins_b>; pinctrl-1 = <&m_can1_sleep_pins_b>; status = "okay"; };I used the pins_b configuration because looking at the datasheet they were the only possible exposed pins on the PI_GPIO extender (CN2) on the board (overwriting I2C5 pins for the Arduino). I also removed the pullup resistors for i2c (R166 and R167). On the kernel side I tried the loopback and seems to work fine: root@stm32mp1:~# ip link set can0 up type can bitrate 1000000 dbitrate 2000000 fd on[ 1602.982564] m_can_platform 4400e000.can can0: bitrate error 0.3%[ 1602.988958] m_can_platform 4400e000.can can0: bitrate error 0.3%[ 1602.994593] IPv6: ADDRCONF(

Hi,I was able to successfully use arm_math.h in stm32cubeIDE and I did the same for the touchgfx application generated cubeIDE project.But when I tried compiling the same with touchgfx , it was showing an error  "arm_math.h" not found however , building the stm32cubeIDE project generated by touchgfx builds fine. I am totally lost how to integrate DSP library to touchgfx so it can flash along with UI

Hi all,I would like to keep RTC value (and keep the RTC working) during power off of the disco board, so I am planning to cut SB16 (soft bridge) from+3.3V and solder an external CR2032 +V battery to the board. My first questions are:How will I know that the battery is connected to VBAT pin of the MCU during initialization of RTC (from software)? The initialization generated by STM32CubeMX overwrites the date and time registers of the RTC. If the battery is connected the initialization could not modify the RTC clock value and I think it should do nothing with the battery backup RTC... I guess if the RTC is enabled during power on initialization then I have skip RTCInit(). Is this okay?Is there any example or tech paper how to use external battery for RTC and backup RAM? (Hidden secrets)Is the +3V CR2032 battery good pick (the 3V voltage) for backing up RTC?Any notes are welcome!Thanks,Louis  

Hello,I looked through the data sheets of multiple efuses and cannot really find reliable values of Iq (quiescent current) values (somtimes only leakage for certain pins is given). Even the product selector does not show any listings of Iq. Every other vendor (TI, AD, Onsemi, etc.) offers that. Or is it that I just couldn't find it?My requirements are:- max 10V input- lowest Iq possible in always on or when disabled- current limit: > 1.2AThank you.Best,Andy

Hi there,I am trying to set up UART3 to receive and transmit using Interrupt.My setup is simple to verify the issue. These are the steps that I did:1. Add Uart3 in .ioc file with the configuration as:2. In main(), before entering while(1) loop, I start receive_IT as:HAL_UART_Receive_IT(&huart3, bufTemp, 1); 3. Add Callback function as:void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) {HAL_UART_Receive_IT(huart, bufTemp, 1);}The problem that I am running into that is if I send "1234\r\n", my HAL_UART_RxCpltCallback() only triggers twice, and I can see "1" and "2" in my buffer. I also verified ErrorCode before HAL_UART_Receive_IT() is called in the callback function. It turned out the error was an Overrun Error.Could someone please give me some suggestions on how to solve this issue? Sincerely, 

I tried to provision Secure Manager 1.2 to my DK board, and got the following error messages in the provisioning.log:2024-11-10 15:49:30,796 - root - DEBUG - Error: SFI command is not supported for the current device configuration using STLINK interfaces !2024-11-10 15:49:30,796 - root - DEBUG - Error: Cannot launch RSSe...2024-11-10 15:49:30,796 - root - DEBUG -2024-11-10 15:49:30,796 - root - DEBUG - Error: C:\Users\cbens\STM32Cube\Repository\STM32Cube_FW_H5_V1.3.0\Projects\STM32H573I-DK\ROT_Provisioning\SM\Binary\SecureManagerPackage.sfi SFI file Install Operation Failure! Please, try again.2024-11-10 15:49:30,796 - root - DEBUG -Then I booted the DK board in DFU mode, and used the programmer 2.17 to program the sfi, but still failed either "could not connect to the device" if SW1=0, or the following errors if SW1 = 1 (I know according to the instructions it should not be 1.)17:23:44 : Erasing memory corresponding to segment 0:17:23:44 : Not flash Memory : No erase done17:23:44

Does anyone have info or know how to determine the part #'s or specifications for lcd's used on STM32F746G-DISCO and STM324291-Eval1 boards?

Hello,Maybe you can help me, I am not able to start debug session with STLINK-V3MINIE.Context is: Windows 10 64bit, Intel(R) Core(TM) i5-9400STMCubeIDE V1.17.0 Tried with 2 different STLINK-V3MINIEthe STLINK-V3MINIE is seen and updated correctly to V3J15M7 using STLinkUpgrade 3.15.7 toolWhen trying to open a debug session, I get the message "No ST-LINK detected! Please connect ST-LINK and restart the debug session"I tried >20 times, connecting on different USB ports, different USB cables, 2 different STLINK-V3MINIE. I tried to switch OFF the firewall.When I use my old STLINK-V3MINI it is working fineWhen I use a Nucleo board, it is working fineAny idea what I should do? Thanks

I'm working on a stm32wle5c8 Lora project.  I have my own overrides of HAL_InitTick, HAL_GetTick, HAL_Delay and HAL_IncTick because I want to use SysTick as a high-resolution timer.  With this new project, a file Core/Src/sys_app.c is being generated that overwrites HAL_GetTick and HAL_Delay.  What's worse.. The generated ones don't even do anything.  HAL_GetTick does nothing unless the static variable SYS_TimerInitialisedFlag is set.  There is nothing in the code that actually sets it, so HAL_GetTick will always return 0.  HAL_Delay calls a function in another newly generated file Core/Src/timer_if.c which looks like this: void TIMER_IF_DelayMs(uint32_t delay) { /* USER CODE BEGIN TIMER_IF_DelayMs */ /* USER CODE END TIMER_IF_DelayMs */ } In essence, these files are overwriting functions that did something with functions that actually do nothing! So, it would be nice if neither of these files are generated, but I cannot find the magic inca

Created a new thread from STDRIVE101 PWM Output Jitter Inquiry here because it is a question about a completely different device.Dear Peter,Thank you for your explanation. That clarifies the behavior of the STDRIVE101.I have two follow-up questions:Does the STSPIN32G4 behave the same way regarding jitter?Does the STSPIN32G4 use an internal clock?I appreciate your insights.Best regards,Aji

Hi all,I am using the Nucleo-H723ZG board and I'm testing the consumption in stop mode, running the example from the ST repository NUCLEO-H723ZG\Example_LL\PWR\PWR_EnterStopMode.The code compiles without any warning and I use the stlink of the nucleo to program it.I removed the Jumper JP4 (VDD_MCU) and in its place I inserted a precise ammeter (HP34401A)The current measured at the moment of STOP is about 4mA!!Can anyone help me?Thanks a lot,Nicola

I have two NUCLEO-H755ZI-Q boards and I’m trying to run the SPI_FullDuplex_ComIT example on both.One board breaks here (whether the software is built for master or slave):The other board has no problem (whether the software is built for master or slave).Any ideas?

Hi,I'm using the CMSIS-DSP library for FFT calculation, using build-time configurable FFT lengths in the range 64 - 1024. The CMSIS-DSP documentation recommends that, when the FFT length is known, using an appropriate initialisation function such as arm_rfft_init_512_q15() for a 512-length real FFT is preferred over the generic initialiser arm_rfft_init_q15(), since the former allows unused tables to be removed by the linker.I can only find arm_rfft_init_q15() in the repository.I'm using STM32Cube_FW_H7_V1.12.1 but I can't see how to determine which version of CMSIS-DSP that includes (having searched include files for a define, which I'm sure must be hidden there somewhere!).Does anyone know whether those additional FFT init functions have been deliberately excluded from the H7's repository?Advice about how to check the CMSIS-DSP version would also be appreciated.Thanks in advance.

Hello community :)I need help using the EEPROM Memory 24LC1025.I've this address for the 24LC1025 EEPROM ( A0 = 0, A1 = 0 and A2 = 1). And I'm trying to write/read on the data address range 10000h-1FFFFh but I'm not able to, when I try to do anything in this sector it rollovers to the data address range 0000h-FFFFh and I haven't figured out why.Here's part of my code:I2C_HandleTypeDef hi2c1; uint8_t dataread[127]; int main(void) { HAL_Init(); SystemClock_Config(); MX_GPIO_Init(); MX_DMA_Init(); MX_I2C1_Init(); MX_USART6_UART_Init(); HAL_I2C_Mem_Read(&hi2c1, 0x54<<1, 0x0000, I2C_MEMADD_SIZE_16BIT, dataread, sizeof(dataread), 1000); HAL_UART_Transmit(&huart6, dataread, sizeof(dataread), HAL_MAX_DELAY); while (1) { } }I've modified the Mem_Read function incresing MemAddress from uint16_t to uint32_t because I wasn't able to reach one of the higher addresses.In the datasheet the method of accesing different blocks of memory or different sectors is by modif

I want to work with Lora FHSS. Resources on this subject are limited. \STM32Cube_FW_WL_V1.3.0\Projects\NUCLEO-WL55JC\Applications\SubGHz_Phy\SubGHz_Phy_LrFhss. ;I looked at the FHSS example you told me about. This example works in TX mode only. It only sends data using FHSS. I want to listen to this transmitted data with the same model STM32 Nucleo WLE5JC card. Is there an example of this? How can I configure the FHSS configuration to always listen?

Hello,I have been facing this issue of "No source available for "<signal handler called>() at 0xfffffffe"" on a nucleo-h753zi board. Following are few logs obtained from STMCube Programmer.1. Fault that is eesca;ated to a hard fault (forced)2. Faulty called function address: 0x1BB166083. Fault on instruction access (IACCVIOL)4. MMFAR: 0x05. R0,R1,R2,R3,R12: 0x0   SP:0xFFFFFFFC   LR:0xFFFFFFFF   PC:0xFFFFFFFE   XPSR:0x10000036. Debugger issue: As soon as disassembly is clicked, debug is stopped. Note: I am trying to test CAN communication between two nucleo-h753zi boards. Code works on one of the boards. Any help would be much appretiated.Thanks in advance

Hi!I use STM32CubeIde + FreeRTOS + LWIP and quite often, especially for debugging, I change features through CubeMX. It causes reloading of several files that I would like to patch before build.  Examples are LWIP->tcpip.c or LWIP->cc.h.I face an issue, that once they are reloaded, I need to apply changes manually. I looked into file templates, but it seems even worse idea to manipulate that. I know I could add my patched templates to the project, but it's some kind of CubeIDE feature I guess and could make it work properly. I'd like to just create a patch file and add "git apply" command to pre-build steps. However, it seems that reloading file from the Repository by CubeMX causes patch to be not relevant to the file since I get error that patch "does not apply". I used "git diff" for patch creation.Any idea how to patch Repository files before building my application and maintain CubeMX "rebuild" functionality? 

Hi, I need FIT rate for CL 60% and CL 90% for M24C02-RMN6TP please help me with this query.

Hello STM32 Community,I am working with an STM32F103C8T6 ("Blue Pill") Original Chip and interfacing it with a MAX31855 thermocouple amplifier over SPI1. I used a sample program generated by ChatGPT, which initializes SPI1 and manually controls the CS pin using MOSI (PA7).Programmer Used : Original STLINK-V3SET Hello STM32 Community,I am working with an STM32F103C8T6 ("Blue Pill") and interfacing it with a MAX31855 thermocouple amplifier over SPI1. I used a sample program generated by ChatGPT, which initializes SPI1 and manually controls the CS pin using MOSI (PA7).Problem Statement:The program works only on the first flash when I enter debug mode. As soon as i click on Play Button the board stops getting detected via ST-Link/V2 and cannot be reflashed anymore. I have tried with 2-3 different boards, but all of them stopped responding in the same manner.What I Have Tried:Checked Hardware Connections:MAX31855 Connections:SCK → PA5DO → PA6 (MISO)CS → PA7 (MOSI, manually controlled)M