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SPI通信模式设置为主的RV1106设备,不停接收无效数据
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1028276254@qq.com
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2024-11-25 9:04
2024-12-20 3:31
我们用SPI通信,发现设置为主的RV1106设备,在接收的时候,会不停收到无效数据,设置为从的设备却不会有这个问题。
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Crocodile
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2024-01-23 7:21
2024-12-23 1:10
您好 SPI通讯本质上是主从设备信息交换的过程,主机在发送数据的同时也在接收MISO的数据,从机没有填充数据到spi_ioc_transfer的tx_buf或者MISO没有连接都会使主机错误地接收数据,从机能够在有数据时才接收是因为时钟是由主机发送的没有时钟进入时会等待
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