The flash algorithm ST_STM32F746G_Disco_QSPI.elf assumes that the QSPI flash uses the pin layout below (same as on the ST STM32F746NG discovery board):
QSPI_CLK PB2
QSPI_CS PB6
QSPI_D0 PD11
QSPI_D1 PD12
QSPI_D2 PE2
QSPI_D3 PD13
If another pin layout is used for the QSPI interface, please refer to:
https://wiki.segger.com/STM32F746_Discovery
The flash algorithm ST_STM32F723I_Disco_QSPI.elf assumes that the QSPI flash uses the pin layout below (same as on the ST STM32F723E discovery board):
QSPI_CLK PB2
QSPI_CS PB6
QSPI_D0 PC9
QSPI_D1 PC10
QSPI_D2 PE2
QSPI_D3 PD13