通过STM32F103作为控制芯片,将液晶显示屏作为运算器的显示界面,4×4键盘为运算输入模块,制作了经纬度运算器,可以从键盘输入经度纬度以及偏向角度与距离,计算对方的经纬度坐标,经纬度运算部分代码如下所示。
#include "stm32f1xx_hal.h"
#include "usart/bsp_debug_usart.h"
#include "led/bsp_led.h"
#include "beep/bsp_beep.h"
#include "keypad.h"
#include "math.h"
#define pi 3.14159265
float Ea = 6378136.49;
float Eb = 6356755.2882;
int ChangetoSexagesimal(float Num, int *a, int *b, int *c)
{
float e;
int Hour,Minute,Second;
Hour = (int)(Num); //
Minute = (int)((Num-Hour)*60);
Second = (int)(((Num-Hour)*60 - Minute) *60); //
e = ((Num-Hour)*60 - Minute) *60 - Second; //ËÄÉ«ÎåÈë
if(5 <=(int)(e *10) )
{
Second = Second + 1;
}
if(60 == Second)
{
Second = 0;
Minute = Minute + 1
欢迎分享,转载请注明来源:内存溢出
评论列表(0条)