• Interrupt stops randomly
    Hi, Mocroprocessor: AT91SAM7s128 Toolchain: RealView MDK-ARM Version: 3.20 I have the following ADC code need to be run while interrupts disabled to eliminate 60hz noise. So I put it inside...
  • Logic Analyzer randomly freezes...
    I am using the STM32F4 Discovery board (Cortex M4F) with uVision. I find the Logic Analyzer very useful, but I experience the following problem. After a random time (10, 20, even 30 seconds) of correct...
  • AT89C51ED2 UART not work?
    I downloaded AT89C51ED2 UART source code from ATMEL web. when I connected from PC COM1 to AT89C51ED2 and sended a byte data, it sended a wrong byte data back. Have some solutions about this @@?
  • UART of AT89C51 is not working ?
    I am using Keil uv2 to program my AT89C51 and although the UART is working just fine in Simulation but in real circuit its not working i donno why .... cuz there are just ASCII code in the Hyper term...
  • UART doesn't work
    Hey, I have a problem with my UART. It runs as long as the RS232-Cable to the PC is connected, but once I unplug it(i.e. the TxD and RxD Pins are open), the UART stops sending data. Is this a correct...