最近突发奇想，对手头上的mcu芯片进行一个简单的测试
测试内容包括:io口翻转速度，乘法运算速度，单次for循环速度
测试的单片机包括了各大厂商:ST,Ti,STC,ATMEL
测试的mcu内核包括:ARM-M3,ARM-M4,AVR,MSP430,8051
本次测试并非专业测试，结果仅供参考。
测试代码如下：
void chackckack()
{
int x1=23;
int x2=66;
int k=0;
//100次乘法运算
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
k=x1*x2;
}
void chackckack10000()
{
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
chackckack();
}
void textgpio()
{
LED0_L;
LED0_H;
LED0_L;
LED0_H;
LED0_L;
LED0_H;
LED0_L;
LED0_H;
LED0_L;
LED0_H;
LED0_L;
LED0_H;
LED0_L;
LED0_H;
LED0_L;
LED0_H;
LED0_L;
LED0_H;
LED0_L;
LED0_H;
LED0_L;
}
void main()
{
int i;
while(1)
{
textgpio()//测试gpio翻转10次
chackckack10000();//测试乘法10000次 此处针对不同性能mcu做了改动
//chackckack();//测试乘法100次 此处针对不同性能mcu做了改动
LED0_H;
LED0_L;
for(i=0;i<100;i++);//测试100次空循环
LED0_H;
LED0_L;
delay_ms(20); // wait for 20 ms
}
}
测试汇总表格在此：
