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本帖最后由 旧诗行 于 2023-7-5 17:13 编辑
有无大佬帮我看看为啥没反应
void LDMA_Init(u32 A,u32 B)
{
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA1,ENABLE);
DMA_InitTypeDef DMA_InitStructure;
DMA_InitStructure.DMA_Memory0BaseAddr=A;
DMA_InitStructure.DMA_MemoryBurst=DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_MemoryDataSize=DMA_MemoryDataSize_Byte;
DMA_InitStructure.DMA_PeripheralBaseAddr=B;
DMA_InitStructure.DMA_PeripheralBurst=DMA_PeripheralBurst_Single;
DMA_InitStructure.DMA_PeripheralDataSize=DMA_PeripheralDataSize_Byte;
DMA_InitStructure.DMA_PeripheralInc=DMA_PeripheralInc_Enable;
DMA_InitStructure.DMA_BufferSize=4;
DMA_InitStructure.DMA_Channel=DMA_Channel_0;
DMA_InitStructure.DMA_DIR=DMA_DIR_MemoryToMemory;
DMA_InitStructure.DMA_FIFOMode=DMA_FIFOMode_Disable;
DMA_InitStructure.DMA_FIFOThreshold=DMA_FIFOThreshold_Full;
DMA_InitStructure.DMA_MemoryInc=DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_Mode=DMA_Mode_Normal;
DMA_InitStructure.DMA_Priority=DMA_Priority_Medium;
DMA_Init(DMA1_Stream0,&DMA_InitStructure);
DMA_Cmd(DMA1_Stream0,ENABLE);
}
#include "stm32f4xx.h"
#include "sys.h"
#include "delay.h"
#include "usart.h"
#include "lcd.h"
#include "DMA.h"
void Delay(__IO uint32_t nCount);
void Delay(__IO uint32_t nCount)
{
while(nCount--){}
}
int main(void)
{
u8 data1[]={1,3,5,7};
u8 data2[]={0,0,0,0};
char lcd_id[12]; //存放LCD ID字符串
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//设置系统中断优先级分组2
delay_init(168); //初始化延时函数
uart_init(115200); //初始化串口波特率为115200
LCD_Init(); //初始化LCD FSMC接口
POINT_COLOR=RED; //画笔颜色:红色
LCD_Clear(BLACK);
LCD_ShowxNum(30,190,(u32)data1[0],1,24,0);
LCD_ShowxNum(60,190,(u32)data1[1],1,24,0);
LCD_ShowxNum(90,190,(u32)data1[2],1,24,0);
LCD_ShowxNum(120,190,(u32)data1[3],1,24,0);
LCD_ShowxNum(30,220,(u32)data2[0],1,24,0);
LCD_ShowxNum(60,220,(u32)data2[1],1,24,0);
LCD_ShowxNum(90,220,(u32)data2[2],1,24,0);
LCD_ShowxNum(120,220,(u32)data2[3],1,24,0);
LDMA_Init((u32)data1,(u32)data2);
LCD_ShowxNum(30,250,(u32)data1[0],1,24,0);
LCD_ShowxNum(60,250,(u32)data1[1],1,24,0);
LCD_ShowxNum(90,250,(u32)data1[2],1,24,0);
LCD_ShowxNum(120,250,(u32)data1[3],1,24,0);
LCD_ShowxNum(30,280,(u32)data2[0],1,24,0);
LCD_ShowxNum(60,280,(u32)data2[1],1,24,0);
LCD_ShowxNum(90,280,(u32)data2[2],1,24,0);
LCD_ShowxNum(120,280,(u32)data2[3],1,24,0);
}
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