SPI Nor Booting DDR3 Initialization

NITHIN BOJJA

Hi,

I am trying to boot the 6678 evm with led blink project and I changed all sections to load in to DDR3 and emif4Cfg is adding in the map file . When I load led.out file after loading GEL file, leds are blinking. I created a .dat file using hex6x,b2i2c,b2ccs, romparse etc and loaded into NOR flash. when I power off and power on leds are not blinking. DDr3 config values I gave at emif4Cfg are there at 0x00873500, but booting is not happening.

emif4Cfg
000280F5 00000001 00000010 00000002
63062A32 00000000 00001450 1113783C
30717FE3 559F86AF 00000000 00000000
00000000 00000000 00000000 00000000
00000000 70073214 00000000 0010010F
00000000 00000000 00000000 00000000
00000000

What might be the reason. where I am doing wrong. Please guide me to solve the issue. I am attaching my project for reference.1464.led_play.zip

Thank You

Nithin

over 10 years ago

0 Raja over 10 years ago

TI__Guru* 81335 points

Hi Nithin,
From my understanding, the DDR is not initialized to work only the config values are loaded.

Please try the example attached on below e2e thread,
e2e.ti.com/.../1145230
Thank you.

0 NITHIN BOJJA over 10 years ago in reply to Raja

Intellectual 505 points

Thank You for the reply Raja,
From my understanding config values are for the initialization of DDR3, correct me if I am wrong. Please guide me to initialize DDR3 if config values are not initializing the DDR3. The link you suggested is for booting the spi nor flash, I booted dsp with out any problem when my code is not using DDR3.
Thank You,
Regards
Nithin

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SPI Nor Booting DDR3 Initialization