此岸幸福

摘要： 最近在用430开发一款产品，在软件调试的时候发现Watch窗口中无法观察局部变量的值，总是显示<unavailable>，下面通过一个简答的例子说明一下现象：#include "msp430g2553.h"/* Global variable */unsigned char ReceiveGlobal;unsigned char addxy(unsigned char x,unsigned char y){ unsigned char z; z = x+y; return z;}void main(){ /* Local variable */ unsigned 阅读全文