• My usart interrupt occure only one time!!
    Hi. who can help me !! my interrupt occure only one time. I dont know why?? can any body help me why my program dosent work correctly? my startup is SAM7.s thise is my code: #include "at91sam7x256...
  • USART fails in EXTI Interrupt
    I have faced another strange thing today: inside ISR of EXTI I wanted to send some character to USART, but I found that program halts there, after eliminating the commands regarding USART I found that...
  • usart
    can the usart port act as both input as well as output port at the same time.
  • USART
    Hi I'm having issue getting the data send from the usart1; I initialised properly, but the problem is not the rightdata is display on my PC terminal; I'm using stm32f407VG #include "stm32f4xx.h"...
  • HardFault_Handler occure when Timer interrupt enableing
    Hi I am using LPC1788 evaluation kit (OEM509 board) and I need to use timer interrupt and CMSIS RTX OS at the same time. here is a part of source code: TIM_ConfigStruct.PrescaleOption=TIM_PRESCALE_USVAL;...