Ask questions, find answers, and share insights on STM32 products and their technical features.
I wanted to use DAC with DMA with TIM5 being the trigger. my problem is that it does not correctly display the audio,I mean the original audio is like 10 seconds, I first tried to do the transfer by the CPU so that for every interrupt generated by th...
Hi, I'm pretty new into microcontrollers and I have been doing recently a project using stm32f401rbt6. I have made own pcb with this mcu and have issues with connecting to it using SWD pins by using STlink. I have been investigating this problem for ...
Hello all,I have a project using UART DMA for receive datas from Nextion HMI. When i touch a button on Nextion Screen, data should be received a buffer via UART DMA. First five hour it works good but after five hours no data flows. It is like the bu...
Hey folks, I am using UART RX in DMA mode using 512 byte buffer. My code sippest working fine. I have one question.Q. Suppose you have recevied 12 bytes but you have set 512 length so, rxCmplt() callback will not called. Right? But I wanted to stop U...
I'm trying to send POST request to my docker & node.js based server. But i cant send. Im using STM32F103RCT6 & ESP8266 (ESP-01)void connectWifi() { HAL_UART_Transmit(&huart1, (uint8_t *)"AT\r\n", strlen("AT\r\n"), HAL_MAX_DELAY); HAL_Delay(1000); ...
Hi, I'm developing an CAN to USB converter, this converter needs to change the baud rate of the CAN when the user sends an determined message via UART.The Prescaler, TimeSeg1, TimeSeg2 are all configured correctly for the baud rate I desire, as examp...
The LIS3DSH accelerometer is located on the STM32F407VGT6.I need to get the WHO_AM_I value from the LIS3DSH accelerometer register using CMSIS and SPI.The SPI1->DR register is 8 bit.I need to send the WHO_AM_I address and 8 more bits, a total of 16 b...
Hi, I have a STM32L071 on a custom boardThe code was generated with CubeMx for TrueSTUDIO.I have an alarm set on the RTC to wake up the chip from standby mode everyday at 2 AM.I tested it and the system does wake up ! good.My problem is that I need ...
Hi,HAL Version 1.10I am using SMBus in my system to communicate with the smart battery.On an Arbitration loss error, the ARLO flag is set and the "HAL_SMBUS_ER_IRQHandler" is called. The IRQ handler clears the ARLO flag but the "hsmbus->State" remain...
Hello community, I'm working on a project where, on the same board, a SOM (system on module) will run Yocto Linux and an STM32F466 MCU will run bare metal code. I want to update MCU firmware from the SOM using USART communication. From the SOM I can ...
