86 lines
2.6 KiB
C
86 lines
2.6 KiB
C
#include "sys.h"
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#include "usart.h"
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#include "delay.h"
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#include "led.h"
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#include "key.h"
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#include "lcd.h"
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#include "sdram.h"
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#include "ltdc.h"
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#include "usmart.h"
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#include "adc.h"
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#include "dac.h"
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//ALIENTEK 北极星STM32H750/F750开发板 实验22
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//DAC 实验
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//技术支持：www.openedv.com
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//广州市星翼电子科技有限公司
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int main(void)
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{
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u16 adcx;
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float temp;
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u8 t=0;
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u16 dacval=0;
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u8 key;
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Cache_Enable(); //打开L1-Cache
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HAL_Init(); //初始化HAL库
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Stm32_Clock_Init(160,5,2,4); //设置时钟,400Mhz
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QSPI_Enable_Memmapmode(); //QSPI内存映射模式
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delay_init(400); //延时初始化
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uart_init(115200); //串口初始化
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LED_Init(); //初始化LED时钟
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KEY_Init();
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SDRAM_Init(); //初始化SDRAM
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LCD_Init(); //初始化LCD
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MY_ADC1_Init(); //初始化ADC1
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DAC1_Init(); //初始化DAC1
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POINT_COLOR=RED;
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LCD_ShowString(30,50,200,16,16,"Apollo STM32H7");
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LCD_ShowString(30,70,200,16,16,"DAC TEST");
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LCD_ShowString(30,90,200,16,16,"ATOM@ALIENTEK");
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LCD_ShowString(30,110,200,16,16,"2017/8/14");
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LCD_ShowString(30,130,200,16,16,"WK_UP:+ KEY1:-");
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POINT_COLOR=BLUE;//设置字体为蓝色
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LCD_ShowString(30,150,200,16,16,"DAC VAL:");
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LCD_ShowString(30,170,200,16,16,"DAC VOL:0.000V");
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LCD_ShowString(30,190,200,16,16,"ADC VOL:0.000V");
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HAL_DAC_SetValue(&DAC1_Handler,DAC_CHANNEL_1,DAC_ALIGN_12B_R,0);//初始值为0
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while(1)
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{
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t++;
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key=KEY_Scan(0);
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if(key==WKUP_PRES)
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{
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if(dacval<4000)dacval+=200;
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HAL_DAC_SetValue(&DAC1_Handler,DAC_CHANNEL_1,DAC_ALIGN_12B_R,dacval);//设置DAC值
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}else if(key==2)
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{
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if(dacval>200)dacval-=200;
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else dacval=0;
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HAL_DAC_SetValue(&DAC1_Handler,DAC_CHANNEL_1,DAC_ALIGN_12B_R,dacval);//设置DAC值
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}
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if(t==10||key==KEY1_PRES||key==WKUP_PRES) //WKUP/KEY1按下了,或者定时时间到了
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{
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adcx=HAL_DAC_GetValue(&DAC1_Handler,DAC_CHANNEL_1);//读取前面设置DAC的值
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LCD_ShowxNum(94,150,adcx,4,16,0); //显示DAC寄存器值
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temp=(float)adcx*(3.3/4096); //得到DAC电压值
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adcx=temp;
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LCD_ShowxNum(94,170,temp,1,16,0); //显示电压值整数部分
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temp-=adcx;
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temp*=1000;
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LCD_ShowxNum(110,170,temp,3,16,0X80); //显示电压值的小数部分
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adcx=Get_Adc_Average(ADC1_Handler,ADC_CHANNEL_19,10); //得到ADC转换值
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temp=(float)adcx*(3.3/65536); //得到ADC电压值
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adcx=temp;
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LCD_ShowxNum(94,190,temp,1,16,0); //显示电压值整数部分
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temp-=adcx;
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temp*=1000;
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LCD_ShowxNum(110,190,temp,3,16,0X80); //显示电压值的小数部分
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LED0_Toggle;
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t=0;
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}
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delay_ms(10);
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}
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}
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