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i.MX RT LPSPI in Quad mode

Question asked by Dmitriy Nechaev on Nov 16, 2019
Latest reply on Nov 20, 2019 by Dmitriy Nechaev

Hello to everyone. I need to use LPSPI in Quad mode. Drivers from original example (evkmimxrt1020_cmsis_lpspi_int_b2b_transfer_master)  don't support quad mode at all. I've set PCSCFG bit in CFGR1 register and transfer width in TCR. After that module works int 4 bit mode. It transfers data in right manner, but i dont understand how to read data in that mode, because D0-D3 should become inputs for reading. Does anybody have any ideas(examples) for quad mode?