Solved

I have the board, I have downloaded all of the data and guides that I can find but there is no mention of AC IN voltage range. I would like to drive a small 400V induction motor. 400VACrms would mean 566V peak across the capacitor at no load.I note that the main DC bus capacitor is rated for 450V which would be the peak voltage of 318VACrms input. I can replace the 330uF 450V capacitor with a 270uF 600V capacitor but I am unsure of the voltage rating of the other components and I cannot find a complete schematic.

..

..

I use the L9963E GUI PC tools to configure/communicate with the ST µc SPC574S64E3, it works fine. I know want to learn more about the communication between the µC and the stack monitor component.Thanks in advance

Hello,I am using STM32WLE5CC for my project of Lorawan FUOTA Project. I wanted to do FUOTA task with my application, but I think, there would be issue of size. According to FUOTA document, Firmware max size is 84kB, and When I compile only Generated Lorawan Code (on application code added), its size is around 65kB in Optimize level 1. So only 19kB space is available for other code, which is very les for a product to develop, again Lorawan Multicast and Timing Module is not enabled in this firmware, which also consumes memory.I need at least 35kB for my custom application code.So, how could I achieve FUOTA, in my application, is there any way to reduce Lorawan stack size or any other Lorawan Library for lowering Memory footprint.Thank You

Hello,If the NFC operates at 13.56MHz and data rate is 100–420 kbps.How fast a data of 10kB can be transferred with a 100kbps speed.?Is it (10kB * 8/100k) + (10kB * 8/100k) * (overhead) ?Regards,Vmere

In many aplications i am using simple template, where interrupt routines (for example UART receive) raise flags (volatile variables) and main() function polling these flags and processing these events (for example parsing incoming UART charaters). I would like to put MCU to sleep when there is nothing to do - when all flags are cleared. But i can not simply write:if(!flag1 && !flag2 ...){ go_to_sleep(); }because of potential race condition. Flag can be set during if statement evaluation and there is risk, that MCU will go sleep with raised some flag. Is there any mechanism how to sleep STM8S (and possibly STM8L) safe - only if flags are cleared ?just for interest: STM32 handles that problem by calling "send event" instruction (at place where flag is raised), which prevents falling asleep.AVR have separated bit for "sleep enable" and this bit can be cleared in IRQ routine, where flag is raised and also prevent MCU from going to sleep mode.How to do that with STM8 ?

I try to specify relative paths without a lot of ../../.. spaghetti, but every time I shoot into the correct directory, I get an error like a /Debug/ was added to my path?I moved all my code files, now I want to make include paths right, but it's either using workspace folder, or... IDK. It accepts absolute paths, but I don't accept absolute paths.My whole point is to make the simplest possible folder structure for both STM32CubeIDE and other tools.I don't get it. My project root (a directory where the .project file is located) is ROOT. I'd think when I have to include directory ROOT/DIR all I have to do is to specify "DIR" as include path. Or "./DIR". But nothing works. STM32CubeIDE insists on adding /Debug/ to my paths. I tried adding "../" 1, 2, 3, 4 times. If I add too many "../" then it resolves the directory correctly as incorrect - so the path ending is correct, as specified, just the root is wrong. However, when my "root" is just ".", then it adds "/Debug/" to it and treat is a

I've been fighting this problem for some time. I have a simple custom made board based on STM32G05. I'm utilizing 2 UARTs. One of them I use just for serial port debug. Takes keyboard input (but don't use it) and print out data for debugging. The other one connects to a different MCPU. An ESP32, specifically ESP32-CAM.As the ESP32-CAM boots, it sends some diagnostics to the serial port.My STM32 does not see this data. I can use a USB serial port (with putty) and communicate to both STM32 and ESP32 independently. However, connecting the ESP32 TX pin to STM32 RX pin does not give me any data at all.I can "tap into" the ESP32 TX pin and connect this to a USB serial port RX pin and see the data while it boots, but the STM32 simply does not see it. I've look at the data on the scope, and logic levels are correct. My code is straight forward#include "main.h"   extern UART_HandleTypeDef huart1; extern UART_HandleTypeDef huart2;   uint8_t rx[6]; uint8_t rx2[6];   void HAL_U

I''m working on STM32WL55 series microcontroller and I want to use KEIL IDE,Please let me know does keil support STM32WL55 for FREE

Hi,I'm trying to learn DMA in depth, but I'm confused at some points. It's about Bus Matrix and Arbitration mechanism. In STM32F446RE, there are 2 DMA controller and each one has 1 peripheral bus and 1 memory bus. Question is not about memory bus of DMA. I know if CPU and DMA tries to reach memory on same bus at same time, there is some procedure to manage arbitration on Bus Matrix. On the below Bus Matrix Block Diagram, it seems clear. But if DMA2 reaches any APB1 peripherals directly using DMA peripheral Bus, and same time CPU is using APB1 bus to do another work on AHB Peripheral Bus 1, what happens? The CPU and DMA may even want to access the same peripheral using this way but not necessarily. Even if DMA don't have to use AHB Peripheral Bus 1, both Masters will eventually use the same bus, APB1. As i understood, there is not any arbitration mechanism because there are not overlaps on Bus Matrix. In this situation, can CPU and DMA work at same time? Is there any arbitration mehanis

Hi to everyone,I have 2 batches of a board (let's call NEW and OLD version) where internal temperature sensor of STM32H743AII6  (connected to ADC3 channel18) is used. Differences between batches are related with I/O pins (used MCO1 instead of MCO2 and 2 more I/O moved to other pins). Devices connected to changed tracks works properly. Nothing changed in power supply tracks routing or power supply stage (same dc/dc, in the same position..) . In boards produced in OLD batch I can read temperature properly, usual value is around 50-60°C due to enclosure and additional devices on board. On NEW batch the temperature value is around 260-270°C. ADC initialization and management is the same in both firmwares. Using the NEW firmware on OLD boards the measured temperature is right. In NEW boards (with wrong temperature measurement) the reference voltage Vref_Int (ADC3 channel 19) is 1,21V. I can't understand what's wrong, it seems to be something in the hardware/silicon but I have no idea.

I was not able to find the answer to this in the QA/Knowledge Base. I understand ST documentation says not to mess with the STM32-F103xx as it comes pre-programmed from the factory. However I have a board whose serial communications between the host PC are broken, but appears to be otherwise functioning. Thus I can neither communicate with nor re-flash the board over the serial interface (little more than a brick).I posted an earlier question under BLEMesh (possibly the wrong posted area) entitled "My (new) BlueNRG-LP STEVAL-IBD011V2 evaluation board is no longer recognized by MS-Windows Device manager when I plug into the USB port. How can I recover this functionality?" However this is a different question (albeit tangentially related), so I wanted to keep the questions separate. My thinking is if I can rewrite serial bridge I/O firmware loaded at the factory, perhaps I can recover the board serial communications with the host PC.

My code generation fails with the following exception :Exception in thread "Thread-4645" java.lang.IllegalAccessError: class parsers.FromScratchParser (in unnamed module @0x6a84a97d) cannot access class com.sun.org.apache.xerces.internal.parsers.DOMParser (in module java.xml) because module java.xml does not export com.sun.org.apache.xerces.internal.parsers to unnamed module @0x6a84a97d at parsers.FromScratchParser.getDestinations(FromScratchParser.java:257) at convertor.Convertor.generate(Convertor.java:354) at com.st.microxplorer.plugins.projectmanager.model.ToolchainGenerator.generate(ToolchainGenerator.java:370) at com.st.microxplorer.plugins.projectmanager.engine.ProjectBuilder.createToolChainFolders(ProjectBuilder.java:4150) at com.st.microxplorer.plugins.projectmanager.engine.ProjectBuilder.createProject(ProjectBuilder.java:916) at com.st.microxplorer.plugins.projectmanager.engine.GenerateProjectThread.run(GenerateProjectThread.java:54)Here's my java version�?�

Hello guys,I was inspecting the design files of the Nucleo board and could not understand the use of the capacitor used for the TCXO. In the image attached (nucelo design schematic file), a note says that the C31 is used in order to avoid stubs on XTA path when the same capacitor is not placed. I don't understand what it means, could someone help please?

I am trying to run an FTPM in a trusted environment generated by OPTEE. I can see OpenSTLinux has support for OPTEE, TPM but there is no support for ftpm. Can someone give me pointers as how I can include ftpm in distro(openstlinux-weston). ftpm souce code is made available by Microsoft but I want to know how I can make it work on STM board.

Hello,So I already downloaded the Lorawan_End_Node example into my Nucleo board and I could see how it works with the TeraTerm terminal.However, now I'm trying to generate a new code from the .ioc file with the CubeMX (I only added the debugger option and defined regional configuration for EU868). I had some problems in the beginning because it seems that the CubeMX does not generate the BSP driver files (I read this in another question in this forum). So I coppied the BSP folder into my drivers folder of the project and added the ".extSettings" with the modified path to this same drivers folder in the project. Now the project could be built and downloaded/debugged.Can anyone confirm if this was well done?Anyway, this seemed to make the trick, but the code does not still work. When I run it into my board the code stops working before ending the first try to join. See next image:The join failed message never appears and the code is stuck at here: It seems it is waiting for an inter

I'm evaluating the ST25SDK-1.5.0 for the development of an application on Android but understood ST25TB tags are not supported.Any recommandations on how to implement ST25TB support on a mobile application ? Any workaround on android?Thanks

I am quite new with embedded programming. I must implement CRC8 with HAL and have tried to implement the CRC8 in python at the other end. Have used the crc8 library but both results don’t match. Is there anybody who could give me a hand to implement it correctly?

hello everyone, I have a small mistake when I want to make something like the photo, it give me error what is the problem, If anyone help me, It is very good for me, thanks.

Hi I would like to know if I can still get the interrupt updates of a timer but disable the call to the callback HAL_TIM_PeriodElapsedCallback.

HI all,I tried change option bytes for STM32WB55 in code, and probably something went wrong when I did this. After programming MCU I found that my flash was probably be blocked:How can I unblock FLASH? I tried change security config options in STM32CubeProgrammer, used CLI, used DFU mode but It didn not help. In all the time I have error:STM32_Programmer_CLI -c port=swd -ob SFSA=0xcb ------------------------------------------------------------------- STM32CubeProgrammer v2.4.0 -------------------------------------------------------------------   ST-LINK SN : 066FFF393738425043065240 ST-LINK FW : V2J35M26 Voltage : 3.27V SWD freq : 4000 KHz Connect mode: Normal Reset mode : Software reset Device ID : 0x495 Device name : STM32WB55xx Flash size : 1 MBytes Device type : MCU Device CPU : Cortex-M0+/M4     UPLOADING OPTION BYTES DATA ...   Bank : 0x00 Address : 0x58004020 Size : 104 Bytes   ██████████████████████████████████████████████████ 100%     P

I'm planning to use 2052 bytes per packet (ATT-MTU-2052) and I want to know if it is possible. So. here is a question.What's the maximum ATT-MTU and minimum connection interval of WB55 with BLE 5.2?

Hello,We are using M95512-6RMP with STM32WL5CC, we powered EEROM with STM32WLE5CC Pin. According to M95512-6RMP datasheet its voltage range is 1.8V-5.5V.I have attached our schematic of EEPORM connection.Please help us in this case. We want to use EEPROM at minimum of 2.2V.Thank You

I am looking for a self-test library to be able to pass UL-60730 class-B certification. Request you to help me if such a library exists.Regards,Bhavya.