簡易頻率特性測試儀制作含原理圖與源碼

ID:135102 · 發表于 2017-7-15 22:03

2013年競賽題，基于嵌入式的

原理圖如下：

單片機源程序如下:

#include "sys.h"
#include "delay.h"
#include "usart.h"
#include "led.h"
#include "lcd.h"
#include "adc.h"
#include "PROCESS.h"
#include "sram.h"
#include "malloc.h"
#include "sdio_sdcard.h"
#include "usmart.h"
#include "LCDView.h"
#include "touch.h"
#include "TOUCHKEY.h"
#include "DDS.h"
#include "w25qxx.h"
#include "ff.h"
#include "exfuns.h"
#include "fontupd.h"
#include "text.h"
int main(void)
{
u8 key;
//u8 lcd_id[12]; //存放LCD ID字符串
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//設置系統中斷優先級分組2
delay_init(168); //初始化延時函數
uart_init(115200); //初始化串口波特率為115200
LED_Init(); //初始化LED
LCD_Init(); //初始化LCD FSMC接口
W25QXX_Init(); //初始化W25Q128
tp_dev.init(); //初始化觸摸屏
AD9854_Init(); //初始化DDS
Adc_Init(); //初始化ADC
usmart_dev.init(168); //初始化USMART
my_mem_init(SRAMIN); //初始化內部內存池
my_mem_init(SRAMCCM); //初始化CCM內存池
exfuns_init(); //為fatfs相關變量申請內存
f_mount(fs[0],"0:",1); //掛載SD卡
f_mount(fs[1],"1:",1); //掛載FLASH.
while(font_init()) //檢查字庫
{
LCD_Clear(WHITE); //清屏
POINT_COLOR=RED; //設置字體為紅色
LCD_ShowString(30,50,200,16,16,"STM32F4");
while(SD_Init()) //檢測SD卡
{
LCD_ShowString(30,70,200,16,16,"SD Card Failed!");
delay_ms(200);
LCD_Fill(30,70,200+30,70+16,WHITE);
delay_ms(200);
}
LCD_ShowString(30,70,200,16,16,"SD Card OK");
LCD_ShowString(30,90,200,16,16,"Font Updating...");
key=update_font(20,110,16,"0:");//更新字庫
while(key)//更新失敗
{
LCD_ShowString(30,110,200,16,16,"Font Update Failed!");
delay_ms(200);
LCD_Fill(20,110,200+20,110+16,WHITE);
delay_ms(200);
}
LCD_ShowString(30,110,200,16,16,"Font Update Success! ");
delay_ms(1500);
LCD_Clear(WHITE);//清屏
}
POINT_COLOR=BLUE; //畫筆顏色：藍色
//sprintf((char*)lcd_id,"LCD ID:%04X",lcddev.id);//將LCD ID打印到lcd_id數組。
//畫背景
begain:
on_off=0;
mod=0;
again=0;
Draw_Back();
LCD_Fill(AREA_FUNCTION_LEFT+3,AREA_FUNCTION_TOP+4+0*78,AREA_FUNCTION_LEFT+24,AREA_FUNCTION_TOP+74+0*78,GREEN);
AD9854_SetSine(1000000,4095);
while(1)
{
py_show_result();
if(on_off)
{
if(!mod)
{
data_process0();
}
else
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