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12455 Discussions

SDcard to Cyclone II Schematics

Honored Contributor II

Hi I want to interface SDcard or MicroSD to EP2C8Q208. 

1. Do I need to drive SD_CLK to PLL_Out pin or I can use any regular I/O on Cyclone 

2. I want to use SPI mode so only 4 signals are used, is this schematic correct and is there some other examples of connecting SDcard to Cyclone FPGA.  

3. I think also that adding 10K resistor on CLK signal is not best idea. 

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