• tsk_lock() and tsk_unlock()
    Hallo, i use tsk_lock() for disables task switching(on Arm Cortex-M3) is this the same function as NVIC_DisableIRQ(SysTick_IRQn) i wonder because tsk_lock() takes longer then calling NVIC_DisableIRQ...
  • query
    sir i have developed my own header file in case of lpc2148 arm7 in keil software which is.. #include<lpc214x.h> void gpioset(int port,unsigned long set) { if(port==0) { IO0SET=set; } else {...
  • query
    WhenI link my program,I meet with the problem as following: Warning L15 : multiple call to segment List two caller: caller1 is a sub_program invoked by my ex1_int serve program caller2: ?c_c51startup...
  • queries
    I have a problem in c51 compiler. i got message as below Build target 'Target 1' compiling hgbmenu.c... HGBMENU.C(41): warning C280: 'check': unreferenced local variable linking... *** ERROR...
  • STM32F10xOPT.s query
    Hi, I am a 'newbie' in the Arm/Cortex arena and as usual there are some problems and questions that need answers. 1. The 'STM32F10xOPT.s' file that comes along in the startup folder, do I understand...