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Quad SPI on STM32F4/F7

Question asked by lopez.pedro.001 on Sep 26, 2016
Latest reply on Sep 28, 2016 by horbach.markus
Hi.

I have a project working with a STM32F2/F4. I want to upgrade this project a bit, adding a CPLD/FPGA to do certain tasks that actually is doing the micro.

We have done a small test and it worked with a SPI and a CPLD... but we would like it faster.

We have the option to send from several SPIs or use QUADSPI, logically QUADSPI would be better, but  reading the docs it seems oriented to work with Flash Memories, I dont know if it is possible to transmit your own data.

Is it possible to use QUADSPI like SPI, just using DMA and transfering a long block of data to the output, sending hi/low nibble alternatively?.

Best Regards.

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