• KL25Z Not Executing SysTick_Handler
    I am new to embedded software development but I have chosen to begin learning through the KL25Z board. At the moment, I am exploring the use of SysTick interrupts, but after debugging and reducing my...
  • Can't write on the control register during handler mode
    I am using TM4C development board and Uvision 4 IDE. During the context switch routine i need to store PSP value. When i use PSP symbol in the assembly code i have an error "error: A1647E: Bad register...
  • multi slave in I2C bus
    Please help me at C code for reading time from DS1407 on I2C bus.I am able to R/W data to an EEPROM on the same bus.But when i read the time i get 0xffff for hrs,mins and secs even after initializing...
  • uVision debugging: no values for variables and macros when hovering over them
    I am new to the Keil IDE because of the small learning curve on debugging. But: when I debug, I only saw actual values of my variables while hovering over, where I did see them occassionally some days...
  • i2c slave problem
    hi everyone i am trying to communicate between two lpc2148 through I2c. I am having problems in the slave side, i think so. The slave does not acknowledge properly(Hardware). i used logic analyzer in...