Something wrong

double calc( int angel) { return sin(2*pi*(5/48000)*l); } Why do the function always returns zero?
Something wrong with my keil?

Hi, I have tested my ARM7 stamp baord with some of the supplied test HEX files including UART test with Tera Term. All good. My problem however is when I generate the hex files myself with Keil uv3...
something wrong with SPI commucation of two stm32

Hello everyone.Recently I have had two stm32 chips to communicate by SPI,then I had a difficult problem.My goal was letting the master and the slave exchanging one byte data,just one byte.after I wrote...
operating leds not on a dev board.

I see the examples of how to use the LEDS on the Keil examples but I'm not able to do this on my own board. I tried something like GPIOC->MODER |= (GPIO_MODER_MODER8_0);//output GPIOC->OSPEEDR...
timer and phyCORE Dev board

Hi all When i run the program below in the simulator the program works fine and the LED blinks correctly in the simulator window.But if I download the program to the phyCORE dev board the LED in the...