Queries on QSPI, used MCU stm32l4kc

[chethan sk]

The MCU qspi peripheral is connected to serial NOR flash. Along with these connection the same qspi individual data pins are connected to 3 individual Altera FPGA for booting purpose.

qspi clock is common for all 3 FPGA.

The following operation which are working fine:

1. Read and write to flash using 4 data pins is working fine.

The following problems what we are facing:

1. I need to make one GPIO pin to be high Just after 8 bytes i have read from the flash.
2. I kept FIFO depth 8.

and I am having doubt that where I need to alter in qspi driver such that