update README with a note about interfaceB: this interface is required by cycloader only when a bitstream must be written in the SPI flash

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Gwenhael Goavec-Merou 2019-10-11 09:10:38 +02:00
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@ -71,6 +71,10 @@ cycloader -b cyc1000 -r project_name_auto.rpd
svf file used to write in flash is just a bridge between FT2232 interfaceB
configured in SPI mode and sfl primitive used to access EPCQ SPI flash.**
**Note about FT2232 interfaceB:
This interface is used for SPI communication only when the dedicated svf is
loaded in RAM, rest of the time, user is free to use for what he want.**
### ARTY
To simplify further explanations, we consider the project is generated in the