Ask questions, find answers, and share insights on STM32 products and their technical features.
Hello.First of all, thank you for your help.I have a question about UART & debug.When I stop transmitting from the PC while communicating with the PC and then debug, there is no problem.When I stop debugging and resume while transmitting from the PC,...
I'm using UART7 on a STM32H743 to drive a RS-485 transceiver. I've set it up to use the hardware DE pin to switch the transceiver between TX and RX modes. I transmit 14byte messages to devices on the bus, and they send back ~14byte messages. My code ...
I am trying to implement an application with USB CDC-ECM host capabilities. As a bring up setup, I configured two STM32 boards:1) STM32U5G9J-DK2 board, configured as a CDC-ECM device, using USBX.2) STM32U575I-EV, configured as a CDC-ECM host, using U...
I am using one of the 32 bit timers to measure intervals for fault protection on a HV pulse modulator. I have an interrupt on EXTI that captures both leading and trailing edges of the command pulse. In the service routine, I simply store the lates...
My simple program to test wake from standby with PC13/Wakeup_pin4 is working. I use the pushbutton on this pin as an EXTI and had to add the GPIO_DeInit before setting the pin as an input without EXTI.The same code does not work in my larger program...
I’m working on a design where I need to communicate with two SPI devices that operate at different logic levels:1) A sensor running at 1.8v logic (need SPI + 2 other lines, all at 1.8v) 2) Everything else on my board, preferably running at 3.3v, I wi...
I have measured the MCU current on the NUCLEO-L433RC-P dev board by removing JP6 and connecting a multimeter. The current in shutdown is ~1mA, why is this so high ? The shutdown current should be nA or uA at most... To shutdown I call "HAL_PWREx_E...
Hello again, The DMA now works in standard request mode with circular mode disabled, but it doesn't when I am trying to use circular buffering mode (my destination buffer only contains 0s). I defined manually the data size, the source and destinati...
Hello All, I am using STM32L011G4U6TR for one of my application development. I have written a code where I am using,11 GPIO, 1 UART and Internat EEProm.When I am building the code in I am getting below Error and not able to load the Application on ST...
Hello All,I have a camera of 5 MP and optical light engine with display of 1280 x 720 pixels.Can I run both the peripherals on MIPI interface simultaneously such that the camera content is input/feed is input to optical light engine having display of...
