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How to clear the DMA functions` redundancy words?

when I use the DMA functions as below:HAL_UART_Transmit_DMA(&huart1,(uint8_t *)aTxStartMessage,sizeof(aTxStartMessage));HAL_Delay(10000);In PC side,It always display such symbols at the hand of the aTxStartMessage after the first success reciever. Wh...

GShen.1 by Associate II
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Resolved! STM32 PLL clock source doesn't work

Posted on June 18, 2017 at 09:21 Hello i have a program on the 32F030f4p6 chip for testing the system clock frequency. It blinks an LED at about 1Hz. the problem is that when i change the PLL multiplier from 2 to 12 the LED still blinks at the sa...

Resolved! Problem getting CLK and MOSI on SPI1 using STM32F091.

Hi there,Variations of this question have been asked before, but I have had no luck so far.I am attempting a very simple setup where I am using SPI to write to a display, where the screen does not talk back. I am using SPI1 on the STM32F091 and canno...

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MFord.1 by Associate III
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Transfer Error (invalid Data) with USART1 & DMA

Hello,I setup USART1 using DMA with a STM32G071 & using HAL lib.Currently, i try to send uint8_t TxBuffer[7]={0x16,0x07,0x98,0x09,0x00,0x00,1B}.Transfert is done using HAL_UART_Transmit_DMA(&huart1, &TxBuffer[0], 7) and i have well manage the require...

RBarr.1 by Associate II
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  • 4 replies
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No 2020 STM32 wishlist

This is probably the promised replacement.[Edit 2023] Link above lead to Ideas, a section mostly ignored by ST (TouchFX crew being exception) and ultimately removed together with content i.e. user wishes when migrating to Khoros [/EDIT] Pity. It's be...

Resolved! Can anyone tell me how to configure external interrupts on stm32f103c8t6? is there anything wrong, my IRQHandler is not functioning properly...(actually, i wanted my LED(PA1) to glow when i interrupted it with push button(PB3) but it is not doing so...?

#include "stm32f10x.h"void EXTI3_IRQ_IRQHandler(void){ if(EXTI->PR & EXTI_PR_PR3) { EXTI->PR |= EXTI_PR_PR3; GPIOA-> BRR |= GPIO_BRR_BS1; }}int main(void){ RCC ->APB2ENR |= RCC_APB2ENR_IOPAEN;   //LED(OUTPUT PIN)(PA1) GPIOA->CRL &= ~(GPIO_CRL_CNF1); ...