at89c2051 programming problem

hbhks1

at89c2051 programming problem [Copy link]

Hello everyone, I have a stupid problem. I downloaded a .C motor driver from the website. But when I put it into Keil software to edit HEX, it can't be compiled. I don't know if it's a software problem or my own technical problem. Please help me analyze the following program: stepper.c stepper.hex /* * STEPPER.C * sweeping stepper's rotor cw and cww 400 steps * Copyright (c) 1999 by W.Sirichote */ ＃i nclude c:\mc5151io.h /* include i/o header file */ ＃i nclude c:\mc5151reg.h register unsigned char j,flag1,temp; register unsigned int cw_n,ccw_n; unsigned char step[8]={0x80,0xc0,0x40,0x60,0x20,0x30,0x10,0x90} #define n 400 /* flag1 mask byte 0x01 run cw() 0x02 run ccw() */ main() { flag1=0; serinit(9600); disable(); /* no need timer interrupt */ cw_n = n; /* initial step number for cw */ flag1 |=0x01; /* initial enable cw() */ while(1){ { tick_wait(); /* wait for 10ms elapsed */ energize(); /* round-robin execution the following tasks every 10ms */ cw(); ccw(); } } } cw(){ if((flag1&0x01)!=0) { cw_n--; /* decrement cw step number */ if (cw_n !=0) j++; /* if not zero increment index j */ else {flag1&=~0x01; /* disable cw() execution */ ccw_n = n; /* reload step number to ccw counter */ flag1 |=0x02; /* enable cww() execution */ } } } ccw(){ if((flag1&0x02)!=0) { ccw_n--; /* decremnent ccw step number */ if (ccw_n !=0) j--; /* if not zero decrement index j */ else {flag1&=~0x02; /* disable ccw() execution */ cw_n = n; /* reload step number to cw counter */ flag1 |=0x01; /* enable cw() execution */ } } } tick_wait(){ /* cputick was replaced by simpler ASM code 10ms wait */ asm" JNB TCON.5,*"; /* wait for TF0 set */ asm" CLR TCON.5"; /* clear TF0 for further set */ asm" ORL TH0,#$DC"; /* reload TH0 with $DC, TL0 = 0 */ } energize(){ P1 = step[(j&0x07)]; /* only step 0-7 needed */ }

lcofjp

＃i nclude c:\mc5151io.h /* include i/o header file */ ＃i nclude c:\mc5151reg.h There are problems with these two sentences, and they are very big problems. You can fix them yourself. If you don’t know how to fix them, don’t bother, as there will be more pitfalls in the future.

lcofjp

Including header files is not only a syntax error, the key is whether you have these two header files?

ienglgge

Copy the entire c file and use it directly? This is a very sloppy approach. You should first find a normal project. Analyze the main content of this c file. Add variables and functions to the corresponding files in the original project. Debug it bit by bit. This is relatively less risky. In addition, if you analyze the code more in the early stage, it will be easier to modify the function later.