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BF518F and 32MB SDRAM Initialisation

Question asked by Giri on Sep 18, 2013
Latest reply on Nov 21, 2013 by Giri

Hi,

I am using a custom board with Blackfin BF518F processor interfaced with a 32MB SDRAM. The part number of SDRAM is MT48LC16M16A2 _75. I configured the EBIU registers using XML files as follows.

EBIU_SDBGTL = 0x80919989

EBIU_SDBCTL = 0x013;

EBIU_SDRRC = 0x0406

But when I am running my application (UART application) the program is encountering an exception with program sequencer showing the following values

SEQSTAT = 00002021

EXCAUSE = 0x21

IDLE_REQ = 0

SFTRESET = 0x01

HWERRCAUSE = 0x00

On doing step by step execution, I found that the exception occurred while application tried to fetch from memory location 0x0628. In the disassembly window the memory location 0x628 was showing illegal opcode.

Please guide me to solve this problem.

 

With regards

Gireesh.M

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