LPC Microcontrollers中的主题 LPC2378 and SRAM 621024D-70LL https://community.nxp.com/t5/LPC-Microcontrollers/LPC2378-and-SRAM-621024D-70LL/m-p/799240#M32141 <HTML><HEAD></HEAD><BODY><P>Hi all... My first post... Sry for my english...</P><P></P><P>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.</P><P></P><P>I work for many year with PIC (18/32) and Arduinos, and now i am starting work with ARM...</P><P></P><P>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...</P><P></P><P>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...</P><P></P><P>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...</P><P></P><P>My code is anexed. This code is not final, is only a test:</P><P></P><P>Cristal 12MHz, PLL 72MHz</P><P></P><P></P><P>Ty a Lot</P><P>Moacir Jr.</P></BODY></HTML> Tue, 16 Oct 2018 12:14:29 GMT moacir_silveira 2018-10-16T12:14:29Z LPC2378 and SRAM 621024D-70LL https://community.nxp.com/t5/LPC-Microcontrollers/LPC2378-and-SRAM-621024D-70LL/m-p/799240#M32141 <HTML><HEAD></HEAD><BODY><P>Hi all... My first post... Sry for my english...</P><P></P><P>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.</P><P></P><P>I work for many year with PIC (18/32) and Arduinos, and now i am starting work with ARM...</P><P></P><P>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...</P><P></P><P>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...</P><P></P><P>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...</P><P></P><P>My code is anexed. This code is not final, is only a test:</P><P></P><P>Cristal 12MHz, PLL 72MHz</P><P></P><P></P><P>Ty a Lot</P><P>Moacir Jr.</P></BODY></HTML> Tue, 16 Oct 2018 12:14:29 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC2378-and-SRAM-621024D-70LL/m-p/799240#M32141 moacir_silveira 2018-10-16T12:14:29Z