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
Solved! Go to Solution.
There was some problems in hardware. I've tried to run this test on another custom board, and it passed succesfully
There was some problems in hardware. I've tried to run this test on another custom board, and it passed succesfully
@georgemakarov
Hello,
is it possible to look at the scheme? You may provide it as reply
on my mail.
Regards,
Yuri.