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QSPI Pins for Dual Flash

Question asked by jtro 9 on Dec 23, 2019
Latest reply on Jan 1, 2020 by Jing Pan



I would like to interface Dual Flash memory with QSPI with MIMXRT1021CAG4A MCU. One for Program execution and other for Data storage.


I can see two FLEXSPI A & B with two slave select pin SS0 and SS1, can we connect two flash with same FLEXSPI_A  by using SS0 for one flash and SS1 for other?


Is there any performance degradation for my application?


Please guide on pin selection?