DDR Test Tool fails to write DCD

[georgemakarov]

Hello!
I try to make DDR calibration and stress test.
I use the latest vesrion of NXP DDR Test Tool 3.00 and the latest DDR register programming aid 1.1
My configuration is i.MX6ULL (MCIMX6Y2CVM05AB) and single chip of DDR3 K4B1G1646I-BMMA0CV
When i try to download utility via SDP i got an error "ERROR: Write dcd failed"
I found that following lines in script lead to this error:

setmem /32	0x021B001C =	0x02208032	// MMDC0_MDSCR, MR2 write, CS0					
setmem /32	0x021B001C =	0x00008033	// MMDC0_MDSCR, MR3 write, CS0					
setmem /32	0x021B001C =	0x00048031	// MMDC0_MDSCR, MR1 write, CS0					
setmem /32	0x021B001C =	0x15208030	// MMDC0_MDSCR, MR0 write, CS0					
setmem /32	0x021B001C =	0x04008040	// MMDC0_MDSCR, ZQ calibration command sent to device on CS0					

I found several topic in community about similar problem, but in this case these registers is allowable.

PS.
I have another board that was developed 3 years ago with the same MCU and DDR3 chip, and this board accepts this configuration file well without errors. though fails at calibration anyway 

[georgemakarov · Accepted solution]

There was some problems in hardware. I've tried to run this test on another custom board, and it passed succesfully

[Yuri]

@georgemakarov 
Hello,

   is it possible to look at the scheme? You may provide it as reply
on my mail.

Regards,
Yuri.