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UARTprintf("%f",x);
发送 接到的是ERROR
怎么用UARTprintf()函数发送浮点格式的数
void f_char_printf(float Xangle){ float temp = Xangle;
if(Xangle>=0){ UARTprintf("%d.%d",(int32_t)temp ,(int32_t)((temp -(int32_t)temp )*1000));
}
else{
temp = 0-temp;
UARTprintf("-%d.%d",(int32_t)temp ,(int32_t)((temp -(int32_t)temp )*1000));
直接写了个函数 不知道为什么UARTprintf 没有%f 这种用发、。。。
Zijie
UARTPrintf确实是不知浮点数据的打印，只支持以下几种类型：
%c, %d, %p, %s, %u, %x, and %X.
那应当如何是好呢？？？
double c,d;int m1,m2,m3,m4，pui32ADC0Value[0];
d=(double)(pui32ADC0Value[0]); c=(double)(d/4096)*3.3; m1=c; m2=(int)(c*10)%10; m3=(int)(c*100)%100;
UARTprintf("AIN0 = %d", m1); UARTprintf("."); UARTprintf("%d", m2); UARTprintf("%dv\n", m3);
看懂你就你能用了
