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Hi everyone,I’m using the STM32F407VET6 VBAT pin to power the RTC, and I plan to use a CR2032 coin cell directly.I noticed that many schematics add a diode between the CR2032 and the VBAT pin to prevent reverse charging, but after checking the datash...
Hi,In STM32H742xI/G datasheet (DS12110 Rev 8), the SRAM3 memory block is not specified in the "Table 7. Flash memory and SRAM memory mapping" but I can see the availability of the SRAM3 in the generated .map file.Can someone please confirm, it is typ...
In a recent design I needed an additional pin and I configured the PA13 / SWDIO pin as a GPIO input.All going fine, code works, but then this happened: After I program the chip in automatic mode and set the option byte rdp to 0xBB I can't connect aga...
Hi We are using an STM32U073CCT6 on a battery-powered board. We need to put the processor in low-power mode to increase battery life. The current in STOP MODE 2 is about 20uA. To address some issue related to the power supply and our hardware, we put...
Hi everyone, I’ve been stuck on a CAN communication issue between two boards: STM32F429 Discovery (Classic CAN) STM32H743XIH6 (FDCAN) I’m trying to establish CAN communication between them. Currently, the F4 board can transmit and receive data cor...
Actually i tried to upload a custom frimware as per tutorial given in the Lora e5 mini documentation everything is going fine but when it came to changing the RDP level from BB to AA in the post i just changed the level fro BB to AA and clicked apply...
Hi,I am currently working on the firmware of a PCB with an STM32G031K8T6 as the MCU, supplied by a 1.8V voltage.When I enter Stop 1 mode, the consumption of the MCU drops to 100uA, instead of the 7uA stated in the datasheet.The app_stop function is a...
Hello Team, One more query is there. We are not using USB. In STM32H7S7L8H6 pin D9-VDD50USB is there. So, can we connect it with 3.3V supply? Thanks & Regards, Jignesh Karena
Hello there, I'm playing with the NUCLEO-H743ZI2 board and having difficultis with PTP. When TSIE (MACIER is set the interrupt is getting retriggered endlessly. I've tried to clear TSIS by reading both MACISR as well as MACTSSR (TXTSSIS bit set). The...
Hi i am struggling to make SPI work on my nucleo-h723z board. I am using Cubemx to configure and i press when asked to used the default setup for the nucleo board when creating the project.CubeIDE is v. 1.15.1CubeMX is v. 1.11.1my code is very basic:...
