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Hi everybody,I read 15 analog channels with DMA on my STM32f446. It works very well (It's tiggrered by TIM3 every 200ms).So I'd like to add Vbat. First, I've added it as the 16th channel of DMA, it works, but I saw the battery voltage decreases (around 0.05V in two hours), so I think I read it too often.So I'd like to read it periodically (every minute for example).I'm trying to read my 15 first channels with DMA and then a classic read for Vbat, but the value is always wrong (around 560 instead of 1000).Is it possible to do that (two different means to read ADC) ?Thank you,

On ST87M01 current version 2.7.0 I suspect that everything that goes in module via "AT" interface passes through filter which removes spaces and sets everything lowercase. This is OK for AT commands, but it mingles with user data that is passed, for example topic and message in mqttpub command, which is unexpected behavior. For example:at#mqttpub=Topic1,This is a testexpected topic is "Topic1" but you get "topic1"expected message is "This is a test" but you get "thisisatest".

Hi!My application requires NIST-compliant random number generation, and I see some unclear/contradicting info on the Reference Manual, the AN4230 application note, and the public NIST certificate. My MCU is STM32H563ZI.- Reference Manual: https://www.st.com/resource/en/reference_manual/rm0481-stm32h52333xx-stm32h56263xx-and-stm32h573xx-armbased-32bit-mcus-stmicroelectronics.pdf- AN4230: https://www.st.com/resource/en/application_note/an4230-introduction-to-random-number-generation-validation-using-the-nist-statistical-test-suite-for-stm32-mcus-and-mpus-stmicroelectronics.pdf- Public NIST certificate E163: https://csrc.nist.gov/CSRC/media/projects/cryptographic-module-validation-program/documents/entropy/E163_PublicUse.pdf Confusing/contradicting info:- E163 gives a RNG_CR of 0x08F01EXX, but AN4230 says value should be 0x00F01E00 (note difference in bit 27). Also, manual says bit 27 "must be kept at reset value.".- Reset values on the manual do not match my

Dear all,I have been modifying the VENC_SDCard_ThreadX example and wanted to start some activity based on the user button, triggered by interrupt using the usual HAL + BSP helpers to init the gpio, and registering a handler function for falling flanks.So I tried BSP_PB_Init(BUTTON_USER1, BUTTON_MODE_EXTI);and implemented BSP_PB_Callback(). Symptom: Hitting the button turned the program to be stuck in some unrelated irqhandler (debugger name-clash -- the defaulthandler triggered), the callback has not been triggered.I had a look at the BSP implementationn and retried the same with HAL functions, same effect, this code in BSP_PB_Init() sparked my interest: (void)HAL_EXTI_GetHandle(&hpb_exti[Button], BUTTON_EXTI_LINE[Button]); (void)HAL_EXTI_RegisterCallback(&hpb_exti[Button], HAL_EXTI_COMMON_CB_ID, ButtonCallback[Button]);which registers a callback,  and further down the line in stm32n6xx-hal-driver-exti.c there is an HAL_EXTI_IRQHandler  implementation which

Hi ST team,I am seeing what appears to be a silicon-level issue on STM32H563RGV6, revision X, related to the SWAP_BANK option byte.When SWAP_BANK is enabled, a USB OUT endpoint stops being re-armed during a flash mass erase of the inactive bank. The USB ISR still executes, but the BULK OUT path wedges because the OUT endpoint is no longer re-armed. Once the mass erase completes, the endpoint behavior returns to normal.Key observations:MCU: STM32H563RGV6Revision: XThe issue is specifically tied to SWAP_BANK being setThe problem occurs during mass erase of the inactive bankThe symptom is specifically USB OUT not being re-armedThis does not look like a total USB interrupt loss; ISR activity can still occurOther endpoint activity is not affected in the same wayThe entire application, including vector table and read-only data used by the relevant path, is relocated to SRAMBank selection / inactive-bank arithmetic has been verified and is correctThis does not appear to be a normal software i

Hello community,I am currently working with the CAN sample example.Using the polling approach works fine for sending and receiving messages with my PCAN adapter. However, after configuring Interrupt Line 0 for the dedicated message buffer, but this didn't work. I've sent messages using the PCAN adapter, but no interrupt was triggered. Do i have to set the irq component rla as well? In my opinion the interrupt code is already implemented in the can code. Did i miss something?Thanks in advance for your help.Kind regards,Tkorn

Hi, I'm using the STM32U5G9J-DK1 Demo Board with the STM Demo Program Ux_Device_DFU, because I need to create a specific bootloader for my board.The STM32CubeProgrammer program connects to the board via USB and I can read its memory, but the program doesn't receive information from the Flash Blocks, so programming doesn't start.If I enable the Bootloader available in the MPU's system memory, the programming via the STM32CubeProgrammer works correctly.What should I change in the STM source code to avoid this problem?Thank you in advanced

Hi,  I have an stm32g473 which use the clock of another system as external clock on PF0 / OSC_IN. This clock is them multiplied by 74 through the PLL. I need to synchronize my code with the external clock (i.e. wait for it to rise).  What is the simplest way to do this? Can I use PF0 both as OSC_IN and as an GPIO in input mode to generate an event on the rising edge? or should I root the clock to both OSC_IN and another GPIO?  Are there other possibilities did not find in the reference manual (e.g. using the HSE as a trigger to one of the timer or an event I could WFE on ?)Thanks.

Hi All,please point me to sources aboutESD sensitivity in practical applicationsstandard practice to protect RF inputsfor GNSS modules like Teseo LIV4F, LIV3F, with external antenna - this means, the device has a RF connector (MCX, SMA) which might be subject to ESD.

Hi all, I am currently working with the STM32WLE5JC for a LoRa/LoRaWAN-based IoT node and would like to clarify some points regarding LoRa FHSS and LR-FHSS support. From several discussions in the STMicroelectronics Community, I noted the following statements from ST employees and contributors: “There is no way to activate the frequency hopping as the LoRa stack does not offer this feature on the STM32WL.” “After further investigation, it appears that the Semtech SX1262 does not support LoRa FHSS, (but supports for LR FHSS). This is a hardware limitation rather than a driver limitation.” “There is no reference to LoRa FHSS in the driver code or documentation.” It is also understood that: Semtech SX1262 RF IP (which the STM32WLE5 is based on) does not support LoRa FHSS from a hardware perspective Based on this, my understanding is that: :backhand_index_pointing_right: STM32WLE5JC does not support LoRa FHSS However, I would like clarification on the following: 1. LoRa FHSS Support C

In a recent release (not sure which one) the option to select USER_PHY was added to the platform settings under LWIP.I need to implement a different PHY for a LAN9374. It is basically identical to the LAN8742. The only issue is that the LAN8742 init code fails unless modified slightly. If I select LAN8742 and modify the file I can get it working but as expected every time I regenerate the project the modifications get overwritten. Where is the documentation on how to implement a USER_PHY?

I was wondering if there is any possibility to change the NCS from NCS1_port2 to NCS2_port2 using the OTP registers on the STM32N6.I checked the registers but couldn’t find any option to adjust this. Maybe its not possible. Just to confirm my understanding:The default setting for ROM boot is XSPI1 using XSPIM_Port_2, and NCS1 is "required" by the ROM boot code to correctly load the FSBL via LoadAndRun. https://community.st.com/t5/stm32-mcus-products/stm32n6-it-s-possible-to-change-xspi2-to-xspi1-for-boot-using/m-p/847884/highlight/true#M287378 Kind regards,Zimmeri

Greetings Everybody, Since few months i have been trying my hands on RAK3172. I have successfully implemented ADC, UART/USART and I2C on RAK but without SUBGHZ and everything is working fine. I have also made my custom code for RAK3172 SUBGHZ and it is also working fine. I have established communication with two RAK3172 modules and they are communicating with each other as on successful data transfer between the two i am toggling LED connected to one of the GPIOs. Now problem comes when i am enabling UART/USART and SUBGHZ code. On startup i am sending 64 bytes of data out on UART/USART connected to USB to TTL converter. On every power ON i am trying to find 64 bytes of data on terminal but without any successs. Is there anything that i am doing wrong ?

I am currently using the STM32H735G-DK.​While white and red seem to display correctly, black(0x0000) appears as a dark purple when rendered. Even when displaying textures, there is a slight purple tint mixed in throughout the image.​I am writing to the framebuffer in RGB565 mode, and the LCD is reading directly from it. What could be causing this color distortion?

Dear ST,The STM32H5 overview page seems to display the wrong number(1) of CANFD controllers for STM32H5E4 in the line comparison table. The datasheet says it's 3,  like for all the others  in the STM32H5E/F lines.Also, I couldn't find anything in the errata sheet about non usable CAN instances.

 Hello Forum,I want to use a Nucleo 64 STM32F401 Board to test I2C connection with an unknown master (reverse engineering).The Bus consits of 1 Master (unknown Controller) an 1 Slave (My STM32F40). The Master sends out a Read Request at Addr. 5 and the Slave should respond with 3 Bytes. I've connected the I2C Bus to PB6/PB7 of the Nucleo Board. On Softwareside I Initialized with bare metal Code, see attachment.I my setup a I2C Master sends out a Adress byte with read request to address 5, but my Controller doesn't do a thing at all. I would expect at least an ACK Bit, but nothing can be monitored.From the Signal capture the bus looks fine for me, but in which mode do I need to configure the stm32 slave? Is this standard mode or fast mode. Is the clock speed of any concern in this case (slave)? How to config the CCR and TRISE register in this case.The Port seems to be configured correct, the IDR of GPIOB detects a "1" on PB6/PB7.In my example I've also enabled interrupts, but

After a long time, i started to look into using the BLE_Thread_dynamic stack image on WB55 again. First without success with my own code on my own board, which I do think to remember worked before.But afterwards with the BLE_Thread_dyn example on a WB55 Nucleo Board and that doesn't work as well. This is how the FUS Info looksAnd this is where it gets stuck Any Ideas what I might be doing wrong?I already tested with and without "Start Wireless Stack" from the programmer. Not using it, makes it stop even earlier, at hci_reset.Starting to look into older stack images now.Edit: I went back up to 1.18 (using the example code from 1.24, which seems to be untouched since way back) and nothing worked :thinking_face:.

STM32G491Code generator generate wrong order of calls for SPI initialization for LL driver: LL_DMAMUX_SetSyncRequestNb  calls after LL_DMAMUX_EnableSync

Hello,We programmed our STM32L011 microcontroller with firmware that enters STOP mode and waits for an interrupt.However, we accidentally disabled the interrupt on the PA4 line. As a result, the device now immediately enters STOP mode, and we are unable to reprogram it.Could you please advise how we can recover the device in this situation?Thank you in advance.

 Hello!We are using an STM32L0 microcontroller as a power switch.The device works correctly when the firmware is started from STM32CubeIDE using the Run command.However, if we switch the power supply off and then back on, the STM32L0 does not boot.We suspect there may be an issue related to the reset circuit.Please see the attached schematic. The relevant device is U6.Could you please advise?Thank you in advance.

Hello world!I want to move a motor with serial commands. I use the stm32g051 PWM and a DC motor. And for the sake of lower consumption of energy and cpu I use a dma in circular mode. And of course I want to change the pwm from time to time. But somehow, there is always a delay of more than 10 seconds between the calling of the function and the change in the motor behaviour. mid_error_t tim_forward_buffers(void) { for (uint16_t i=0; i<PWM_BUF_LEN; i++){ pwm_ch1[i] = (uint32_t)(param.speed * (htim2.Init.Period-2))/ MAX_SPEED; //pwm_ch1[i] = 0; // htim2.Init.Period; pwm_ch2[i] = 0; } __HAL_TIM_SET_COMPARE(&htim2, TIM_CHANNEL_1, pwm_ch1[0]); __HAL_TIM_SET_COMPARE(&htim2, TIM_CHANNEL_2, pwm_ch2[0]); return MID_ERROR_OK; }You may guess that the PWM_BUF_LEN is too big... There is just one element in pwm_ch1 and pwm_ch2. What may cause this problem? I use the __HAL_TIM_SET_COMPARE to change the pwm faster and the pwm_ch1 pwm_ch2 just contain one elem

I'm working on adding a custom STM32MP257 board based on the openstlinux distribution package, and I'm currently using the STM32MP257F-EV1 board. I'm having problems with booting on eMMC with a stm32cubemx-generated device tree. What I've done:* Created a STM32MP257F-EV1 project in CubeMX. I've only changed the project name, no pinning etc (based on instructions from https://wiki.st.com/stm32mpu/wiki/How_to_create_STM32MPU_projects_with_STM32CubeMX#Create_an_STM32MP2_series_project)* Copied the generated output into layers/meta-st/meta-st-stm32mp-addons/mx* Copied stm32mp25-mx.conf to a custom one and edited (perhttps://wiki.st.com/stm32mpu/wiki/How_to_create_your_own_machine)BOOTSCHEME_LABELS += "optee" [...] BOOTDEVICE_LABELS += "sdcard" BOOTDEVICE_LABELS += "emmc" * Built the image usingDISTRO=openstlinux-weston MACHINE=stm32mp257f-simon source layers/meta-st/scripts/envsetup.sh bitbake st-image-westonwhich finishes successfully (CUBEMX_DTB, CUBEMX_PROJECT etc being set in

Hello, i found a bug in the code generated by the Motor Control Workbench usign the 6-step algorithm. Even with Open Loop mode enabled, the code is still using the PID for the initial duty cycle computation (state CHARGE_BOOT_CAP in the TSK_MediumFrequencyTaskM1()). If the PID isn't set up right and starts with a low duty cycle, the motor won't turn. This means the Hall sensors don't trigger, the duty cycle never updating, and the motor just sits there even if you set a high duty cycle value. The Open Loop mode shall bypass the PID controller, otherwise it is useless.  I fixed it by changing row 174 of mc_tasks_sixstep.c as follows: from:  MCI_ExecBufferedCommands(&Mci[M1]); /* Exec the speed ramp after changing of the speed sensor */ to: if (SDC_GetOpenLoopFlag(pOLS[M1])) { SDC_SetControlMode(pSDC[M1], MCM_DUTY_MODE); } else { MCI_ExecBufferedCommands(&Mci[M1]); /* Exec the speed ramp after changing of the speed sensor */ } Leo Edited to apply source code formatti

Hi i am getting this error while opening motor pilot for gui in motor control,pls go throgh below attached file.        

The project requirement is to use optical ethernet with STM32MP257F. I want to try this interfacing first at STM32MP257F EV1 with some copper to optical Ethernet converter module, but in STM32MP257F EV1, Ethernet pins are not available for interfacing. Kindly suggest some solution for using optical ethernet with STM32MP257F.     Kindly send the solution as early as possible.     Thank you With Best Regards, Dr. Amruta S. Dixit