fx3s booting with 2 spi

gean_3054931 · ‎Jun 21, 2018

Hello,

I am using cyusb3035 fx3s,i have interfaced fx3s with two spi flash(same specification and separate chip select) through spi interface.

one flash is for booting the fx3 and other is for data storage.can i interface fx3s with two spi flash?will it cause problem for booting if i do?let me know.

thank you,

KandlaguntaR_36 · ‎Jun 22, 2018

No need to do any thing for booting. By default SPI_SSN# will be asserted by the bootloader while booting.

Once the booting is done, we do not touch the SPI_SSN# line.

If you want to communicate with SPI Flash (used for storage purpose), assert the I2S_SD (D2) pin and use SPI APIs to do data transfers.

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fx3s booting with 2 spi

fx3s booting with 2 spi

Re: fx3s booting with 2 spi