• several interrupts
    hi, my code is too long so i put snapshot of my code #include<..........> . . . . . main() { ...... } void down(void)//down { ES=0; //disable serial ISR timer_flag=0; ph_sensor_error();...
  • Issues Related to Function Decleration
    I have encountered some problems while writing the code for 8051 microcontroller, Can you explain me the following issues: 1- Compiler issued an error when i pass the value to function by referece...
  • ldr (register, several values)
    Hello, I've a small simple question: ldr r4, =||Image$$ER_IROM1$$RO$$Length||+||Image$$RW_IRAM1$$RW$$Length|| At the moment I get an error message from Keil, using this code in the startup...
  • several Interrupts at the same time
    Hi, working with the LPC1758 controller, I've some problems with the interrupts. I use the interfaces I2C1 and SPI. Both interfaces are configurated using interrupts. After the initalization...
  • Open several COM ports
    Hello all, I have a big problem to solve and I need your help. My target (based on 89C51RD2) should transfer/receive data to/from PC in several protocols type through single COM port. When the PC receives...