Forum Posts
How to use UpdateCharData[] and Custom_App_Context_t
I am new to microcontroller development and trying to implement my first custom ble service.I looked at a few other examples that often use the _App_Context_t struct to store data before passing it to the character update method.Example:Custom_STM_Ap...
Resolved! STM32 external OPAMPx_VINM pins
Hi, I'm working on a project which involves STM32L476QEI. It has external dedicated OPAMP1_VINM and OPAMP2_VINM (M3 and M4 pins). If I'm not going to use the opamp functionality, do I have to connect them to the ground or leave them floating? What I ...
For a three phase system, I want to stop the pwm of channel 1 using comparator 1, channel 2 using comparator 2, channel 3 using comparator 3. The current of each leg is being fed to concerned comparator. I can't find any method to do that.
Three comparators are fed with three currents of each leg. we want to stop the PWM of concerned leg whenever the current goes beyond the set value of DAC.
SDMMC2 on STM32F767 (pyboard D series) / f_mount returns FR_NOT_READY
Hi, I am trying to setup SDMMC2 interface with an SD card. I am using the pyboard d series therefore I am using the SWDIO and SWDCLK pins. The schematic of the board is here (https://micropython.org/resources/PYBD_SFxW_schematics.pdf).According to th...
The PLLon and PLLRdy in the RC register of THE RCC based on STM32H750 are out of sync
Under normal circumstances, THE PLLRdy of RCC is controlled by hardware. When PLLON is enabled by software, PLLRdy is set by hardware. When the software does not enable PLLON, PLRdy is cleared by the hardware. I now have a device with a Farad capacit...
Hi all, i would like to make a my own bare metal code for stm32f401ccu. Here i have given my code. But it's not showing correct clock frequency. Anyone could you pls check it for anything missed or etc...
#include "stm32f4xx.h"#define PLLM 25#define PLLN 320#define PLLP 1//divide 4int clock_80MHz_Ex_pll();int pinMode();void InitTIM2();void Delay_us();void Delay_ms(int x);int clock_80MHz_Ex_pll(){RCC->CR|=RCC_CR_HSEON;//External Crystal Oscillatorwhile...
Resolved! How Have UART communication in a Interrupt function
Hello ,So for my project i need to send UART command every 15min Between this my MCU need to be sleeping And send a command if a Interrupt pin change stateBut when i wrote UART_transmit fonction in a ISR : RTC , timer , interrupt pin the comman...
