Bob Coggeshall

i.MX233 and MT46V32M16P-5B DDR SDRAM initialization.

Discussion created by Bob Coggeshall on Jan 18, 2012
Latest reply on Jan 21, 2012 by Bob Coggeshall

I am in the process of bringing up a new design with the i.MX233 and MT46V32M16P-5B DDR SDRAM

I am booting off of SD and executing out of OCRAM just fine. But am stuck at the SDRAM initialization In the bootlet code there are 4 possible initialization routines:

 

init_mddr_mt46h32m16lf_96Mhz()

init_mddr_mt46h32m16lf_133Mhz()

init_ddr_mt46v32m16_96Mhz()

init_ddr_mt46v32m16_133Mhz()

 

I have tried all of these and none of them work and there is no documentation other than looking up the 40 some odd hex register settings up in the i.MX233 RM.

Before I do that I was wondering if there are any tools for coming up with proper iMX233 EMI register settings.

TIA

..c

 


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