• Repeated pin toggling is not executing
    I am trying to write my own FLASH programmer on a Cypress USB 8051 chip that will program a SiLabs 8051 using their C2 Interface. I have written a macro that simply sets a pin low in the first statement...
  • no uart output
    Hi, I'm using the C51 compiler and running the SIO sample projects with an AT89s52 atmel microcontroller. The code compiles fine and I've run various simple I/O and timer programs successfully. When...
  • Multiple repeat transmissions using Atmel T89C51CC01
    Hi, I'm writting code for the above chip. I can receive messages into my application using the CAN simulator no problem. However, when I launch a message from my application, it is continuously re...
  • lcd display repeats the same digit twice
    hi i am using at89c51 controller along with jhd162a while printing the number like 1234 it prints as 1133,this error does not happens always, only few times it prints correctly as 1234 ,but most of...
  • unstable UART receiver
    I wrote a program to receive data from PC hyper terminal, but I meet a problem in developing stage. I found the MCU will lose the "start" bit of the receive data. so I will lose one characteristics...