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LPC4337 with AS4C2M32SA-6TIN 64MB SDRAM

Question asked by Sigurd Möller on Jul 7, 2016
Latest reply on Jul 11, 2016 by Sigurd Möller

I am trying to get the AS4C2M32SA-6TIN SDRAM to work with my LPC4337. I am not experienced with external memory.

I am able to write data to the first 32 addresses but the 33rd fails. I think the timings must be okay but something in my configuration is off.

 

Currently it is setup as: 2Mx32, 4BANKS, 11ROWS, 8COLS. Can someone verify this is the correct setup for this SDRAM?

 

Also, any ideas where I am failing to be able to access the whole 64 MB?

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