FVP: How to set the SRAM_MODE on Ethous-U85 so as not to cause any errors?

ML Embedded Evaluation Kit
#1

/ml-embedded-evaluation-kit/scripts/cmake/timing_adapter/ta_config_u85_sys_dram_high.cmake
set(SRAM_MODE “1” CACHE STRING “Bit 0: 1=enable dynamic clocking to avoid underrun;
Bit 1: 1=enable random AR reordering (0=default);
Bit 2: 1=enable random R reordering (0=default);
Bit 3: 1=enable random B reordering (0=default);
Bit 11-4: Frequency scale 0=full speed, 255=(1/256) speed”)
I have tried set SRAM_MODE like 16,17,128,129, but got error
[error ][main@0][1002 ns] Mode not supported. Ignored.

so could anyone help me with SRAM_MODE and EXT_MODE setting question?

#2

[Thanks to Jonny Svärd and Henrik Ljunger for providing the answer]

Hi @ccg

The timing adapter in the fastmodel only supports a value of 1 for these registers. At reset the value is 0, but yes, you won’t be able use the higher bits for FVP.

#3

Thank you all :blush:
Okay, I think these registers are mainly for FPGA not fastmodel