2020-08-05 02:14 AM
Hello,
I would like to use three flash memories in QUADSPI from an STM32F7.
As with a normal SPI link, I have connected three memories to a single QUADSPI port and select each with the respective SLAVE_SELECT (SS) of the memory.
I can easily program one flash memory in QUADSPI with the hardware CHIP_SELECT of the STM32F7, ie with PB6 or PB10.
However I do not succeed when I put a software CHIP_SELECT in QUADSPI.
My question :
Is it possible to control the CHIP_SELECT by software and not only in hardware by QSPI_BK1_NCS ?
I tried to force the CHIP_SELECT software to another pin but could not read the flash memory (the signal from CHIP_SELECT to the oscillator is correct)
Best Regards,
Mike