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58 lines
1.7 KiB
58 lines
1.7 KiB
#ifndef _BSP_DMA2D_H
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#define _BSP_DMA2D_H
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#include "main.h"
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#include "dma2d.h"
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// extern uint8_t dma2d_transfering;
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void DMA2D_Fill( void * pDst,
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uint32_t width, uint32_t height, uint32_t lineOff, uint32_t pixelFormat,
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uint32_t color);
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void DMA2D_MemCopy(uint32_t pixelFormat,
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void * pSrc, void * pDst,
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int xSize, int ySize,
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int OffLineSrc, int OffLineDst);
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void DMA2D_Blend(void* pFg, void* pBg, void* pDst,
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uint32_t offlineFg, uint32_t offlineBg, uint32_t offlineDist,
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uint16_t xSize, uint16_t ySize,
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uint32_t pixelFormat, uint8_t opa);
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#endif
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/*
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Test
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uint32_t gpubuf1[200];
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uint32_t gpubuf2[200];
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DMA2D_Fill( gpubuf1, 25, 8, 0, DMA2D_ARGB8888, 0xFFFFFFFF );
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if (gpubuf1[0] ==0xFFFFFFFF && gpubuf1[199] ==0xFFFFFFFF){
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log_i( "DMA2d Fill Test Pass %02X " , gpubuf1[199]);
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}
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dma2d_transfering =1;
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DMA2D_MemCopy(DMA2D_ARGB8888, gpubuf1, gpubuf2, 25, 8, 0, 0);
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osDelay(100);
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if (gpubuf2[0] ==0xFFFFFFFF && gpubuf2[199] ==0xFFFFFFFF){
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log_i( "DMA2D MemCopy Test Pass %02X " , gpubuf2[199]);
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}
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DMA2D->CR |= DMA2D_IT_TC;
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DMA2D->CR |= DMA2D_CR_START;
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会产生两次DMA 传输完成中断
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第一次中断传输中断后，停止，数据也接收到，可能时间太短
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建议死等
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// DMA 的寄存器启动
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void MYDMA_Enable(DMA_Stream_TypeDef *DMA_Streamx,u16 ndtr)
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{
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DMA_Streamx->CR&=~(1<<0); //关闭DMA传输
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while(DMA_Streamx->CR&0X1); //确保DMA可以被设置
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DMA_Streamx->NDTR=ndtr; //DMA 存储器0地址
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DMA_Streamx->CR|=1<<0; //开启DMA传输
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}
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// 读 GPIOB pin13 电平
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#define NAND_RB (((GPIOB->IDR) >> 13) & 0x1U)
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*/ |