164 lines
3.3 KiB
C
164 lines
3.3 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 "Dis_Picture.h"
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#include "Text.h"
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#include "GBK_LibDrive.h"
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#include "adc.h"
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#include "dac.h"
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/**********************************************************************/
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//DAC 实验
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//STM32H7工程模板-HAL库函数版本
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//DevEBox 大越创新
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//淘宝店铺：mcudev.taobao.com
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//淘宝店铺：shop389957290.taobao.com
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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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u8 tbuf[32];
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int main(void)
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{
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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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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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LCD_Init(); //初始化2.0寸 240x320 高清屏 LCD显示
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GBK_Lib_Init(); //硬件GBK字库初始化--(如果使用不带字库的液晶屏版本，此处可以屏蔽，不做字库初始化）
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LCD_Clear(WHITE); //清屏
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Draw_Font16B(16,16,RED, " STM32H7 DAC ");
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Draw_Font16B(16,32,BLUE," 嵌入式开发网 ");
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Draw_Font16B(16,48,BLUE,"mcudev.taobao.com");
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Draw_Font16B(16,70,BLUE,"K1: DAC+ K2: DAC-");
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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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Draw_Font16B(16,100,RED, "DAC VAL(PA5):");
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Draw_Font16B(16,120,RED, "DAC VOL(PA5):0.000V");
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Draw_Font16B(16,140,RED, "ADC VOL(PC0):0.000V");
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HAL_DAC_SetValue(&DAC1_Handler,DAC_CHANNEL_2,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==KEY1_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_2,DAC_ALIGN_12B_R,dacval);//设置DAC值
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}
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else if(key==KEY2_PRES)
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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_2,DAC_ALIGN_12B_R,dacval);//设置DAC值
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}
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if(t==10||key==KEY1_PRES||key==KEY2_PRES) //KEY1/KEY2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_2);//读取前面设置DAC的值
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sprintf((char*)tbuf,"DAC VAL(PA5): 0x%4X",adcx); //显示DAC寄存器值
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Draw_Font16B(16,100,RED,tbuf); //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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sprintf((char*)tbuf,"DAC VOL(PA5): %5.3f ",temp); //显示电压值
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Draw_Font16B(16,120,RED,tbuf); //显示电压值
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adcx=Get_Adc_Average(ADC1_Handler,ADC_CHANNEL_10,20);//获取通道10的转换值，20次取平均 PC0引脚，对应ADC1的CH10通道，更多引脚信息，请参考数据手册
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temp=(float)adcx*(3.3/65536); //得到ADC电压值
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sprintf((char*)tbuf,"ADC VOL(PC0): %5.3f ",temp); //显示电压值
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Draw_Font16B(16,140,RED,tbuf); //显示电压值
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LED2_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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/**********************************************************************/
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//DAC 实验
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//STM32H7工程模板-HAL库函数版本
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//DevEBox 大越创新
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//淘宝店铺：mcudev.taobao.com
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//淘宝店铺：shop389957290.taobao.com
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/*********************************************************************/
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