• MCU Performance of Cortex M4
    Hi, I'm developing the software based on a Cortex M4 MCU, and currently I need to implement a audio processing feature. In this case, I need to evaluate the MCU performance of the current software and...
  • there is any way to know my programme use how much of MCU resources ??
    hi to all, i am new in keil and embedded systems, i am working with emwin graphic library and as you know this is big(in viewpoint of micro flash usage) library. size of hex file that keil create for...
  • How can I know if a pin is connected or not?
    Hello, I have a doubt. How can I know if an input pin port is connected or not? I know the microcontroller only recognized Zeros and Ones, but I need to know if a pin port is connected or not....
  • I can download the program to MCU
    I use LPC2468. I has write some code to control PWM, and I set the PCON = 0x2, so the system enter power down mode, and then, I cann't download any program to this chip, because every time this board...
  • anyone know how?
    #include <reg9e5.h> #define POWER 3 // 0=min power...3 = max power #define HFREQ 0 // 0=433MHz, 1=868/915MHz #define CHANNEL 106 // Channel number: f(MHz) = (422.4+CHANNEL/10)*(1+HFREQ) unsigned...