hey frnds. i have problem in sending char serially in normal program. when i try to send 'A' it sends '?'. this is my program. plz help me guyz to solve this problem.
#include<reg51.h> void main(void) { TMOD=0x20; TH1=0xFD; SCON=0x50; TR1=1; while(1) { SBUF='A'; while(TI==0); TI=0; } }
I think most people have learn lots of their skills from looking at other peoples code.
But it really is 100% important to look at every single line and understand it. If it can't be understood with available documentation then the code is either for a black-magic processor (like some driver code in a Linux system, where the manufacturer did write the code based on undocumented knowledge) or the original author did something wrong. Or the code is just solving an advanced problem at a skill level too far ahead.