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about spi by yuzhou on Feb 20, 2014			yuzhou Posts: 4 Joined: Dec 24, 2012 Last seen: Jul 10, 2017
i read some SPI module,all of them have work clock divided by master clock! If i need to have the work clock to be the same as master colcok? How can i do that??? Thanks a lot~ i read some SPI module,all of them have work clock divided by master clock! If i need to have the work clock to be the same as master colcok? How can i do that??? Thanks a lot~

RE: about spi by rsdio on Feb 20, 2014			rsdio Posts: 17 Joined: Feb 1, 2010 Last seen: Mar 4, 2014
In order to control the timing of both SPI clock and SPI data, the SPI module must have a Master clock that is at least 2x the SPI clock. Data transitions usually occur in between SPI clock transitions, and thus the Master clock needs to be faster. In order to control the timing of both SPI clock and SPI data, the SPI module must have a Master clock that is at least 2x the SPI clock. Data transitions usually occur in between SPI clock transitions, and thus the Master clock needs to be faster.

RE: about spi by yuzhou on Feb 20, 2014			yuzhou Posts: 4 Joined: Dec 24, 2012 Last seen: Jul 10, 2017
However clock domain cross often does exist~ However clock domain cross often does exist~

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