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Synchronous USART 'clock' not working?

Hello,Currently I am working on an ECU to communicate with an (existing) electronic sub-system . My choice was to use the STM32F4 family for this application. Boards are coming in while writing software and there are issues in testing.I discovered t...

SBoks by Associate
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  • 3 replies
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Undefine symbol readableU1 (refered from main.o)

.\sx1272mb2das\NUCLEO_CUBE_LORA.axf: Error: L6218E: Undefined symbol readableU1 (referred from main.o).This error occurs.​​​char readableU1(void);​​void check_GPSBufferSize(void) {​ int currentBufferLength = readableU1(); if (currentBufferLength > 0)...

KKS by Associate II
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  • 3 replies
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How to configure Multiple channel ADC using DMA

Hi,I am using stm32f051r4 for my project . I want to configure multiple channel ADC using DMA and my configurations are as follows . void adc_configuration(){ RCC->AHBENR |= RCC_AHBENR_GPIOCEN;          // Enable clock for used IO pins GPIOC->MODER |...

STM32F777 RTC not working accurately

I was using stm32f429 and ported my code to stm32f777. In F429 the rtc was working accurately but in F777 it is lagging by about 1hr a day approx. The hardware is same for both the MCUs and using the internal RTC

HBatr by Associate II
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  • 6 replies
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Resolved! Two mcu's accessing sdcard

Hey everyone,I have an stm32f722ze, The sdcard driver seems to be working well although I have a weird issue.I have a secondary mcu that also needs to access the sdcard.The secondary mcu can succesfully mount and unmount the sdcard multiple times, al...

con3 by Senior
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  • 3 replies
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CAN reception

Hi,Sir I am trying to interface CRS ecu with STM32F303 Discovery. I have referred the example code of evaluation board also. But not able to receive anything.I have attached my project folder. I

STM32F446RET Core held in reset

Hi ST,I have a custom board using STM32F446RE. I followed the Nucleo board schematics for my JTAG connection except that I connect the NRST pin to vcc through a pull-up resistor(10k) to prevent inadvertent reset. The other thing is that I have a TI p...

KZhan.6 by Associate
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  • 8 replies
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Don't Execution SysTick_Handler(void) in LL library

Sorry for weird EnglishI try use SysTick_Handler in LL library (with STM32L011F4U and CubeMX ), but never execute the Handler.I also tried HAL library, then executed properly. So I checked difference between HAL and LL , and I recognized initializing...

sjiro by Associate
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