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Forum Index : Microcontroller and PC projects : sd card spi signal frequency

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Plasmamac

Guru

Joined: 31/01/2019
Location: Germany
Posts: 595
Posted: 03:09pm 16 Jan 2021
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Hi,
do anybody know the Maximum signal Frequency for the spi clk ( and or other from the Sd card ) signals in the  Color Maximite 2 or explore 64 Project

thx
Plasma
 
Justplayin

Guru

Joined: 31/01/2014
Location: United States
Posts: 330
Posted: 09:16pm 16 Jan 2021
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The SPI frequency for MicroMites is .25 the system clock frequency.  So a 100MHz Explore64 could produce upto a 25MHz SPI clk frequency. A 120MHz Explore64 would be faster, however you have remember to change it's default speed of 100MHz to 120MHz. I do know about the MaxiMite2, it just doesn't interest me.

--Curtis
I am not a Mad Scientist...  It makes me happy inventing new ways to take over the world!!
 
Plasmamac

Guru

Joined: 31/01/2019
Location: Germany
Posts: 595
Posted: 02:37am 17 Jan 2021
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Thx for the infoc
Plasma
 
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