I'm trying to transfer data using FlexIO2
FlexIO2 and memory are connected by eDMA and FlexIO2 transfer data at 15Mbps using 16 data line and 1 clock line
I set SEMC clock to 150MHz
When I transfer 384Kbyte with internal SRAM, it takes about 14ms
But when I transfer 384Kbyte with external SDRAM, it takes about 36ms.
Is it the correct performance difference between internal SRAM and external SDRAM ?
Is there any way to improve performace with external SDRAM?