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Hi, following your DS, LoRa PER = 1%. While RF examination, for BW= 125KHz and SF=7, the sensitivity of the micro controller is around -125dBm for PER = 1%. When we change the value of SF to 12, the sensitivity should change to -138dBm but in reality we get sensitivity around -110dBm for PER = 1%. In -138dBm we have got Per of ~20%. Our PER calculation has taken from your lib : Subghz_Phy_Per.Our code is attached.I would like to get a feedback from you why it is not working.Thanks,Tamar

Dear Mrs, Mr,I'm working with a Riverdi discovery board with a STM32. I'm developing a serial protocol for which I'm using interrupt for reception.I enabled the IT in CubeMxUsing HAL_UART_Receive_IT(), it is working fine for the first time and also if all characters received are readIf I relaunch HAL_UART_Receive_IT() and characters were sent to the uart RX buffer without being read, it fails to work The only way I made it working was to add a HAL_UART_Init function before it and it is working fine.But I guess this is not the best way to clean buffer, state and pending interrupts. Can you advise of the best way to do it ? Thank you in advance,Pascal

i cant uplode code in my stm32 Bluepill. error notification (could not verify ST device).how to solve this problem I also change change stm32fx.cfg file .but I face same problem .

Hi everyone,I think like most people, I ignored the errata sheet till it was too late. I know that the stm32f4 and quite a few others do not provide hardware support for TTCAN, which as far as my understanding goes is level 2 CAN (global time synchronization). I have searched the forum and although the errata does come up it doesn't fully answer my question.I stumbled upon a bosch application note which mentioned the following "The time triggered communication is built upon the unchanged CAN protocol (ISO 11898-1). This allows a software implementation of the time triggered function of TTCAN, based on existing CAN ICs. The high precision global time however requires a hardware implementation. A hardware implementation also offers additional functions like time mark interrupts, a stop-watch, and a synchronization to external events, all independent of software latency times."Which makes it seem like I would be able to implement level 1 TTCAN in the existing system, although not level 2.

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Hello, I have made a custom external flash loader(.stldr) file for my STM32 based board and this file works great with ST Link Utility(Read, Write and Erase) are work fine and i can Program the board correctly. But when i try to use the created .stldr file by STM32CubeIDE the erasing process well done but when the downloading process gets start then "failed to download Segment[0]" error pups up. Could any one help me with the problem?MCU = STM32H743iit6QSPI Flash = W25Q256  STMicroelectronics ST-LINK GDB server. Version 6.0.0 Copyright (c) 2021, STMicroelectronics. All rights reserved.   Starting server with the following options: Persistent Mode : Disabled Logging Level : 1 Listen Port Number : 61234 Status Refresh Delay : 15s Verbose Mode : Disabled SWD Debug : Enabled InitWhile : Enabled   Waiting for debugger connection... Debugger connected Waiting for debugger connection... Debugger connected Waiting for debugger connection... ------------------------------

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Is sdmmc it primary component for stm32cubIde or it must be imported manually ? if so please show me where to start.thanks,Hakob

Hi,I try to use a custom board with LIS25BA.I use SAI with STMF446.What I know :MCLK = 12.288 MHzWCLK = 16kHz8 slot with 3 activeso BCLK = WCLK * (8 * 16) = 2.048 MHzWhat I can do :I2C works like a charm ;)What I can't do :Configure SAI with these values.Only MCLK is false and depends on Master Clock Divider I guess ...My actual config :  If someone can help me, it would be so greatThanks in advanceAxoul

Hello everyone,I am trying to define a machine configuration file for a custom board using the DistributionPackage (I am following this approach from the ST wiki and my directory tree is the same described there).Currently, I managed to successfully boot my custom board using the DeveloperPackage, this makes me believe that the device tree files I generated using the ST MX Cube are okay.From my understanding, it is not possible to generate the filesystem files (e.g. ext4) within the DeveloperPackage (I used the ones from the StarterPackage); can you confirm this?So far, I populated the mx directory under <path of STM32MP1_Distribution_Package>/layers/meta-st/meta-st-stm32mp-addons/with the device tree files I generated using the DeveloperPackage and its directory tree looks as it follows:mx └── es-frank-ghiacciolo    ├── kernel    │   └── stm32mp157c-es-frank-ghiacciolo-mx.dts    ├── optee-os    │   └── stm32mp157c-e

HiThere is this motor control nucleo Pack P-NUCLEO-IHM03 which includes the NUCLEO-G431RB evaluation board, the X-NUCLEO-IHM16M1 expansion board and Gimbal motor GBM2804H-100T. I cannot find further information if the included evaluation board can be used with other expansion boards for motor control e.g. for brushed DC Motors.Thank you for any help

Hi,I want to know:What is the difference between L9780 and L9780AC?what the "AC" means?

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Is there someway to do this with stm32cubeide?For my specific use case I am storing configuration data on last page of flash (currently working on figuring out how to erase it so i can rewrite it in software), but I would also like to be able to configure it by reprogramming it. I can check that the page is empty and write settings to it, but I haven't found any way to erase it with stm32cubeide, I need to open the st link utility in order to erase the flash as far as I can tell.

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STM32F1x Standard Peripheral Library part number stsw-stm32054 does not appear.This library was released as V3.6.0 on November 05, 2021.I downloaded this library.However, it is currently unavailable. It seems that you can download the library from the Japanese website.Where can I get the library from the "st.com" homepage?

I'm targeting:openstlinux-5.15-yocto-kirkstone-mp1-v22.07.27DISTRO: openstlinux-eglfsMACHINE: stm32mp15-discoImage+SDK build fine. I create the raw file as usual, image SD card, and boot fails with:NOTICE: Model: STMicroelectronics STM32MP157F-DK2 Discovery BoardNOTICE: Board: MB1272 Var4.0 Rev.C-02INFO:   PMIC version = 0x20INFO:   Reset reason (0x15):INFO:     Power-on Reset (rst_por)INFO:   FCONF: Reading TB_FW firmware configuration file from: 0x2ffe2000INFO:   FCONF: Reading firmware configuration information for: stm32mp_ioINFO:   Using SDMMCINFO:     Instance 1INFO:   Boot used partition fsbl1NOTICE: BL2: v2.6-stm32mp1-r1.0(debug):v2.6-dirtyNOTICE: BL2: Built : 13:14:26, Nov 23 2021WARNING: CRC check failed on FWU metadataWARNING: loading of FWU-Metadata failed, using Bkup-FWU-MetadataWARNING: CRC check failed on FWU meta

Hello I'm using SPI to interface my STM32F7 with the SX1262 radio. I got a weird behavior, I'm using a GPIO to toggle the NSS pin. But sometimes it toggles randomly during the data transfer. You can see on the following screenshot of my logic analyzer:Here's the code for it:void WriteBuffer(SPI_HandleTypeDef hspiX) { while(HAL_GPIO_ReadPin(GPIOF, GPIO_PIN_13) == 1) {   }   uint16_t WriteBufferSize = 6; uint8_t WriteBufferCmd[] = {0x0E, 0x00, 0x33, 0x65, 0x67, 0x67}; // !ACC //uint8_t WriteBufferAnswer[6];   HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET); HAL_SPI_Transmit(&hspiX,(uint8_t *)WriteBufferCmd,WriteBufferSize,100); HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);     }Here's the SPI setup:  

"Could you Implement a monitor task that ideally should be executed at the beginning of each time slice and determine the utilization factor during the previous time slice. If the utilization factor is too high it should give warning. If we can use idle time then we can measure the utilization.In order to set up this monitor we should this to perform a one time estimate how many idle operations can be performed in a time slice. I probably think you can use this estimate. The monitor task should print a warning on the output if the utilization factor is higher than 90%.."This is my requirement from I got for my internship. And I implemented one and when I check with segger systemview tool it is showing little difference. did anyone did something like this?volatile float referencePoint = 1512.493; volatile uint32_t tickhookcurrent = 0UL; volatile float utilization_monitor = 0; void vApplicationIdleHook( void ) { /* This hook function does nothing but increment a counter. */ tickhookcurr

I am using Segger Embedded Studio 6.32 to develop a project for the STM32L062K8U6. While there are some start-up files created by the SES project wizard, I am not using any pre-built libraries and developing all my own code based on information from the "RM0376 Reference manual Ultra-low-power STM32L0x2 advanced Arm®-based 32-bit MCUs" and related docs.I am having a problem with a hard fault occurring every time I enable one of the timers. I have code to run a 500us timer delay that I have tested with timers 2, 6, 21, and 22 with the same result in each case. The main loop toggles an IO pin every time the overflow flag is set. Watching the output on the o'scope I can see that I am getting a correct 500us period, but no matter what timer is used, after 48 seconds of operation I end up in the default hard fault exception handler. I am at a loss to explain this behavior and have not had this issue with timers on other ST Cortex M0 chips.Internet searches on this topic turn up a lot of thr

Hi,I'm using STM32 family for a very long time for lot of clients. My clients want to use linux system just for the screen and the wifi capabilities and I want to use STM32H7B3I-DK as reference and design cheaper and more stable system (I dont like to use heavy OS for low budget projects).I love the examples in "STM32H7B3I-DK compiled demo binary"', but cant find the source.Can you please provide the source code of the examples or add more start guides for the wifi connectivity module?Thanks.

Here is my code : ignore the led toggles , the screenshot of the sr reg is below and highlited bits. Im guessing it has something to to with the arhitecture of the cpu.Kind regards.void flash_page_write(void){ uint32_t addrr_start=0x08001000; uint32_t addrr_end=0x08001FFF; static const uint64_t Data64_To_Prog[32] = {  0x0000000000000000, 0x1111111111111111, 0x2222222222222222, 0x3333333333333333,  0x4444444444444444, 0x5555555555555555, 0x6666666666666666, 0x7777777777777777,  0x8888888888888888, 0x9999999999999999, 0xAAAAAAAAAAAAAAAA, 0xBBBBBBBBBBBBBBBB,  0xCCCCCCCCCCCCCCCC, 0xDDDDDDDDDDDDDDDD, 0xEEEEEEEEEEEEEEEE, 0xFFFFFFFFFFFFFFFF,  0x0011001100110011, 0x2233223322332233, 0x4455445544554455, 0x6677667766776677,  0x8899889988998899, 0xAABBAABBAABBAABB, 0xCCDDCCDDCCDDCCDD, 0xEEFFEEFFEEFFEEFF,  0x2200220022002200, 0x3311331133113311, 0x6644664466446644, 0x7755775577557755,  0xAA88AA88AA88AA88, 0xBB99BB99BB99BB99, 0xEECCEECCEECCEECC, 0x

Hello I have a Nucleo board L476RG and I would like to change the trigger mode of the comparator on the fly, the problem is that I cannot find the register responsible of this in the datasheet.I guess it's not related to the comparator but to the EXTI lines if I'm not mistaken.Any help please.

Hi...I am using STM32H750I Board with resolution of 480 x 272 , but I have a to configure board with 480 x 480 resolution. How can I customize the board in TOUCHGFX IDE in bare metal?Can I use only Internal memory to store the framebuffer, not external memories like QSPI , SDRAM with FMC?If anyone have an idea on this please help me out to solve this.Pooja M