Problem with EPCQ-L1024 extended QUAD input fast transfer

[OPakh]

I have a problem with EPCQ-L1024 extended QUAD input fast transfer.

For communication with it I use "Generic Serial Flash Interface Intel FPGA IP"

It works good in 1x mode but when I send command EBh lines DQ2-3 are always in 1

For example

master_write_32 $mp $operating_protocols_setting 0x00022002

master_write_32 $mp $control_register 0x00000101

master_write_32 $mp $read_instr 0x00000AEB

master_read_32 $mp 0x00000100 0x1

Lines DQ[2], DQ[3] are not used. What may be the problem?

I use Quartus 18.1(Windows 10), Arria 10 GX 

[ShafiqY_Intel]

Hi OPakh,

If you want to enter the QUAD mode, you need to enable the QUAD mode first.

This is the step to enable the QUAD mode:

set flash_cmd_setting [expr {$base + 0x1c}]

set flash_cmd_ctrl [expr {$base + 0x20}]

master_write_32 $mp $flash_cmd_setting 0x00000035

master_write_32 $mp $flash_cmd_ctrl 0x1

I hope this will help.

Thanks😉