关于战舰V4开发板TFT屏驱动程序清屏的问题

菜菜鸟儿

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如上图所示为实现不同种色彩全屏清屏效果，驱动芯片用的是ST7796，初始化代码用的是正点例程里面提供的，没有截图，但下载后实测现像为自上而下的像拉窗帘一样的刷屏效果，不能瞬间清屏切换色彩，不知道是什么原因造成的，请各位大虾指点迷津，这里抗了很久，急

A571157242

像窗帘一样，听起来就是刷屏很慢的效果。提升一下刷屏的速率

854278507

你用IO模拟8080肯定慢了，你要用FSMC模拟8080，然后用DMA传输，这样才快