您好,我用汇编语言写了个89S52程序进行调速(H桥见图),请帮忙改正以下.[图片]500){this.resized=true;this.width=500;this.alt='这是一张缩略图，点击可放大。\n按住CTRL，滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/32/1123648974.gif');}"onmousewheel="returnimgzoom(this);">1123649028.asm