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DCMI 和 OV2640 的若干问题 #212

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majianjia opened this issue Jul 12, 2021 · 0 comments
Open

DCMI 和 OV2640 的若干问题 #212

majianjia opened this issue Jul 12, 2021 · 0 comments

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@majianjia
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缓冲区大小问题,这部分是DMA环形缓冲,不过已经分成了两个buffers,为什么在大小还需要乘以2.

static rt_uint32_t JPEG_LINE0_BUF[JPEG_LINE_SIZE * 2];

DCMI 结束部分的逻辑不太对。
这个函数是在frame complete callback 里面调用的,这部分存在的意义是啥。因为这里已经接收完成可以直接关闭或者重新开始下一帧的接受。


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