Solved

Hi,I am trying to understand the graph "precision" as explained here:https://support.touchgfx.com/docs/development/ui-development/ui-components/miscellaneous/dynamic-graph#precision"If for example the level of precision is set to 0.1, each data point added to the DynamicGraph, will be multiplied by 10 internally"I am using a histogram and giving the data points as floats.I set the Precision to 1 and then to 0.1 but did not see any difference in the displayed value.My data point is 20.0f.I thought it would display a value of 200 with a precision set to 0.1.Is the precision only used internally and not for display purposes?Thanks for clarifying the use of this feature.Franck.

Hi,I'm developping an application where we want the cortex-M doing some power management (with OpenAMP) and the cortex-A taking picture and saving it on SD card.I have the STM32MP157A-EV1.I used the OpenAMP_TTY_echo_wakeup sample that I modified for my need to do the power management. Everything is working fine if I boot in third mode (ie. stm32mp157c-ev1-m4-examples). However, I don't have any camera input as it's saying that /dev/video0 doesn't exist.If I boot in second mode (ie. stm32mp157c-ev1-a7-examples), I've got a camera but I couldn't suspend at first (systemctl suspend), because I would get the following error : PM: Device 40017000.dac:dac@1 failed to suspend: error -16So, I commented every line of code linked to DAC and it worked (ie. I could have the OpenAMP and camera running at the same time). But it's not that great of a workaround. Ideally, I would want to update the device tree. Where could I find the initial device trees used so that I just can quickly modify them ? I

Does the STM32WB have drivers to support serial communication over it's USB port?

Hello,I am designing a stepper motor controller with L6482.The choice of L6482 was made because of its integrated dual h-bridge gate drivers and relatively high voltage rating.The chip features nice set of motion commands but due to specific demands I'm planning to use mainly step-clock mode. Unfortunately the Datasheet is not too detailed about step-clock mode. The questions are:Can the chip in step-clock mode automaticaly switch between micro- and full-stepping when a speed treshold is reached?Can it automaticaly reduce motor phases current when the motor is in standstill? What is the function of "external switch input" in this mode? And - out of curiosity - why STM decided not to implement "direction" pin for step-clock mode?Best regardsPawel.

Hello,I programmed the sensorTile with ALLMEMS1 end I used STM32CubeIDE. After compiling the orange light comes on and I can connect to bluetooth with the IOs app, however as soon as I disconnect the NUCLEO the bluetooth stops working. What can I do ? Thaks,Chiara

Hello everyone and i hope youre having a great embedded morning.CDC_Transmit_FS() bricks itself when i check status of the ongoing transmissionis there any mechanism to know when a CDC_Transmit_FS transaction is finished?When i try to CDC_Transmit_FS before the previous CDC_Transmit_FS is done retval=USBD_BUSY which is to be expected, well after that CDC_Transmit_FS doesnt work anymore always returning USBD_BUSY.This code bricks the usb peripheral and can only be used again after system reset:do { //HAL_Delay(100); retval=CDC_Transmit_FS(&buffer, receivedbytes); } while (retval!=USBD_OK);//   retval=CDC_Transmit_FS("finished transmission", sizeof("finished transmission"));//this will return HAL_OK but no transaction will be doneIf i place a dirty delay big enough for the first transaction to be done everything works.retval=CDC_Transmit_FS(&buffer, receivedbytes); HAL_Delay(1000); retval=CDC_Transmit_FS("finished transmission", sizeof("finished transmission"));im using STM3

Hi All,I am setting up TIM8 CH1 and CH3 on a STM32G431 and am seeing a strange result. First of all, I am using an external signal coming in on PC6 TIM8 CH1. For TIM8 CH3 I am only using a software trigger internal to the MCU, I'm not using any external pin for TIM8 CH3. I am looking for a input capture on CH1 and CH3 only. First. is this configuration okay for the G431?When I enable TIM8 I immediately get SR bits set on : UIF, CC1F, CC2F, CC4F, CC1OF, CCI5 and CCI6. I expect the result for CC1F and CC1OF as CH1 input is active. Is there something I need to do in initialization to make sure erroneous flags don't get set on an enable? Would any of these erroneous flags interfere with the DMA I have set up for CH1 and CH3?Here is my TIM8 initialization code:static void MX_TIM8_Init(void) { TIM_ClockConfigTypeDef sClockSourceConfig = {0}; TIM_MasterConfigTypeDef sMasterConfig = {0}; TIM_IC_InitTypeDef sConfigIC = {0}; //TIM_BreakDeadTimeConfigTypeDef sBreakDeadTimeConfig = {0};  

I am using STM32L010F4 20 pin on a simple breakout board.I am running STM32CubeIde and using a STM32Lc100-disco as my programmer via SYS_SWCLK (PA14), SYS_SWDIO (PA13) and NRST.All works well can get SPI etc running no problem.I mapped USART2_RX to PA10 and USART2_TX to PA9 and connect this to a serial to USB converter.Config below huart2.Instance = USART2; huart2.Init.BaudRate = 115200; huart2.Init.WordLength = UART_WORDLENGTH_8B; huart2.Init.StopBits = UART_STOPBITS_1; huart2.Init.Parity = UART_PARITY_NONE; huart2.Init.Mode = UART_MODE_TX_RX; huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE; huart2.Init.OverSampling = UART_OVERSAMPLING_16; huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE; huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;Just cannot get output without the stlink connected.Tried orders of plugging in, restarting, booting desktop, etc. does not work.

Hey guys.There is a library named cmsis_dsp for these mcus but when i took a look inside them there were just simple codes and not hardware implementation of dsp.But in datasheet it says:The STM32F405xx and STM32F407xx family is based on the high-performance Arm® Cortex®-M4 32-bit RISC core operating at a frequency of up to 168 MHz. The Cortex-M4 core features a Floating point unit (FPU) single precision which supports all Arm singleprecision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.  Im confused. Does it have the hardware or not?

Hi all,I have a STM32F765, which i want to use to generate 4 D-shot signals on 4 GPIO, in the specific 4 gpio connected to Timer 1 .The timer is set as 4 channel pwm with DMA (memory to perpheral).The issue is that i'm able to generate the desired signal only for 2 channels (CH1-CH4).The CH2 and CH3 do not produce any output.I'm quite sure the issue depends on the DMA.Without DMA i can generate a PWM / Pulse on all the channels.In addition if the each timer's channel has its dedicated dma, then all works fine.Note that in the main loop a generic buffer of 5 entries is streamed on the dma (a Dshot has a dimension of 26)So the issue is related to DMA2 stream 6 / Channel 0, where 3 timer channels are processed together: Solution:Each timer channel needs a dedicated dma streamint main(void) {   HAL_Init();   SystemClock_Config();   MX_GPIO_Init(); MX_DMA_Init(); MX_TIM1_Init();   uint32_t esc_dshot_buffer[5] = {25, 50, 0, 25, 0};   uint8_t toggle = 0; &

I am using STM32CubeIDE with a STM32F103 and have UART1 setup in interrupt mode. Is there a working code example anywhere that tells how to implement UART interrupt mode? I have been unable to find via g~~gle. I have worked with multiple other processors other than STM32 and have never had a problem with UARTs. Apparently with all the posts online asking for help anything other than polling is a problem with the STM32 line.Basically I am trying to do something really simple. I have a GPS unit that I have programmed to send the single $GPRMC message. All I want to do is read the incoming message 1 character at a time and copy it to a buffer until the '\n' character is received. I will read the character in the interrupt routine and copy it to the buffer. I will check the character in the interrupt routine for a '\n'. When that character is received I will set a flag that will be picked up in my main while loop and the string data will be processed. I have approximately 800 msecs to proc

Hello everyone, I have a problem with include string methods into cpp header file. I created .cpp files like in this example: https://dev.to/younup/cmake-on-stm32-episode-5-get-ready-for-c-1mh9Also, I generated the project with c++ checkbox.When I #include <string> in app.cpp file I can create a string, but I want to include the library in app.hpp file I get an error. Therefore I can't declare the prototypes of functions in the header file. I'm using Nucleo-L152re board. Codes and errors below.I will be grateful for any help ;) //app.hpp #pragma once #ifndef _APP_H_ #define _APP_H_   #include "stm32l1xx_hal.h" #include "main.h"   //#include <string> // <- Error 1   #ifdef __cplusplus extern "C" { #endif //#include <string> // <- Error 2     void setup(); void loop();   //void testString(std::string text = "abc");   //std::string alp = "";   #ifdef __cplusplus } #endif   #endif//app.cpp #include "app.hpp"   /

Specifically using the timers on STM32H743XI-EVAL and have the microcontroller STM32H743

Recently I swithc project to STM32L4P5CET as main mcu. I can't see any option to use sdmmc in dma mode (In stm32cubeide/mx). Is ST planning to add support later, or it's impossible?

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Hello. I use board st25ru3993-eval and application ST25RU3993 Reader Suite. When tags are readed we can see RSSI LOG Channel I & Q and Input Power. RSSI LOG Channel I & Q we can find in RSSI Display Register in AS3993, but i do not understand how calculate Input Power. I found the document "AN4971 Application note" and there are the formula and table in it.If i calculate by this formula my values are not match those values from Reader Suite. Please, explain me how to calculate Input Power. Thanks!

I need to design a comparator with Vih=1.3V and Vil=1.2V. Therefore hysteresis is 100mV. The circuit will be working on a 3.3V supply. During high state, the o/p of the comparator will be 3.3V and at the low state, it will be 0V. I will be using a comparator with a push-pull output configuration. Please see my design calculations in the file attached. I would like to know two things1)May I know my design calculation is correct or not.2)For finding Vref where I need to plug the value of R1 and R2.In equation 1 or 2RegardsHARI

Does anyone have an experience with binary open source solution from Stackforce? Is it a .a library for gcc linking?

Hi,So far I was using Nucleo WB55 and everything was ok with ST-LINK. Now I created new project and switched to Nucleo H723ZG. When I try to run or debug I receive message:No ST-LINK detected! Please connect ST-LINK and restart the debug session.The Nucleo board is connected via USB, I restarted CubeIDE and my mac, but it didn't help. When I try to update ST-LINK I receive such message: macOS CatalinaSTM32CubeIDE (v1.6.1)Nucleo H723ZG

Hi~I want to know the main difference between the 3 sensor parts.I found in the datasheet that only the LSM6DSO32X is marked with machine learning cores.​Could this make any difference to the development or final product?​I finally include this sensor on a watch-type product and try to distinguish about 4 behavior patterns through machine learning.Considering this, are there any more suitable parts?​Thank you~.​

I compiled the stemwin example of stm32cubef3 v1.11.0 with IAR v9.10. If the optimizations of the c/c++ compiler is high (size), there is no problem, but if it is None or Low, the following error occurs. stm32f3xx_hal_rcc.c   Tool Internal Error:   Internal Error: [AsmLine - OgAsm]: Error: Invalid shift amount    LSRS   R6,R6,#+0      Internal Error: [AsmLine - OgAsm]: Error: Invalid shift amount    LSRS   R6,R6,#+0     How do I fix the error?

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I am using STEVAL-PCC009V2 along with EVAL6480H board. I am controlling it through SPIN EVALUATION TOOL VERSION 3.2 Overcurrent detection(OCD), stall A and stall B status are always in red. what may be the problem? Give me the better solution.

Hi, I'm trying to print the string. What is that I'm missing?This is my func : void Screen1View::UpdateWildcardTexts(char* a) { Unicode::snprintf(textArea1Buffer,10,"%s",a); textArea1.invalidate(); }This is how I test it :void Screen1View::setupScreen() { Screen1ViewBase::setupScreen(); char a[16] = "string"; UpdateWildcardTexts(a); }

Hello!Can somebody say what im doing wrongI have project in STM32CubeIDE with lwip and freertosIm trying to add new thread(as new task) with exist principles and cant do it/* Definitions for TCPip */osThreadId_t mtcpConHandle;const osThreadAttr_t mtcpCon_attributes = {.name = “mtcpCon�?,.stack_size = 384 * 4,.priority = (osPriority_t) osPriorityNormal,};void mstartTcpCon(void *argument);int main(void){/* creation of TCPip connection*/mtcpConHandle = osThreadNew(mstartTcpCon, NULL, &mtcpCon_attributes);while (1){}}void mstarTcpCon(void *argument){....}And at build I have got the following make errors:main.o: in function ‘main’undefined reference to ‘mstartTcpCon’