Something wrong

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

double calc( int angel) { return sin(2*pi*(5/48000)*l); } Why do the function always returns zero?
something about preprocessor

when i use preprocessor #if 0 ... #endif to cross out a bunch of sentences, then after building the target. I noticed the "data" memory usage increased, why? There is no error in the result.
something about preprocessor

when i use preprocessor #if 0 ... #endif to cross out a bunch of sentences, then after building the target. I noticed the "data" memory usage increased, why? There is no error in the result.
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...