請教一下RA8871M透過DMA去SFI_0抓取圖檔來顯示的問題

akira

各位先進，小弟使用的是RA8871M，從API的DEMO CODE來看只有void DMA_24bit(unsigned char SCS, unsigned char Clk, unsigned short X1, unsigned short Y1, unsigned short X_W, unsigned short Y_H, unsigned short P_W, unsigned long Addr)和void DMA_32bit(unsigned char SCS, unsigned char Clk, unsigned short X1, unsigned short Y1, unsigned short X_W, unsigned short Y_H, unsigned short P_W, unsigned long Addr)，兩種格式可用，若圖檔是16bit或18bit有解嗎？

BWSU

您好！DMA_24bit/32bit是针对FLASH的寻址区分，大于128Mb需要使用32bit来寻址。

图片是16bpp或者18bpp，与液晶屏初始化设置相关，二者若不一致会导致图片显示异常。