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LPC2378 and SRAM 621024D-70LL

Question asked by Moacir Silveira Júnior on Oct 16, 2018

Hi all... My first post... Sry for my english...

 

I know that LPC2378 is old, I know that SRAM 621024 is old, but i am working with this 2 parts, and need a help.

 

I work for many year with PIC (18/32) and Arduinos, and now i am starting work with ARM...

 

I know many things, but i am can't do SRAM and LPC2378 work together. My problem: The EMC configuration not is right... The acces time for this memory is 70ns, and i do this memory work with PIC18F87J50 fine...

 

Whats happen: I do not know if the problem is in WR or RD operation. After write 65535 bytes, when i will read this 65535 bytes, he stop in addr 1230 or 515 or any other addr, with wrong byte read...

 

I need help with config in the EMC for memory with 70ns time access. I searched in internet, founded many solutions, for another timings, and I tryed many numbers, any success...

 

My code is anexed. This code is not final, is only a test:

 

Cristal 12MHz, PLL 72MHz

 

 

Ty a Lot

Moacir Jr.

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