PowerQUICC Processors中的主题 MPC885 CAS latency https://community.nxp.com/t5/PowerQUICC-Processors/MPC885-CAS-latency/m-p/1007645#M3124 <HTML><HEAD></HEAD><BODY><P>Hello'</P><P>I'm using MPC885 processor vxworks 6.3 operating system.</P><P>I'm trying to make UPM machine in romInit.s file work in SDRAM CAS Latency 3 instead of 2. I thought maybe somebody done this job and will save me a time.</P><P>Thanks</P><P>Eli</P></BODY></HTML> Tue, 10 Mar 2020 06:14:58 GMT eli_ochakovski 2020-03-10T06:14:58Z MPC885 CAS latency https://community.nxp.com/t5/PowerQUICC-Processors/MPC885-CAS-latency/m-p/1007645#M3124 <HTML><HEAD></HEAD><BODY><P>Hello'</P><P>I'm using MPC885 processor vxworks 6.3 operating system.</P><P>I'm trying to make UPM machine in romInit.s file work in SDRAM CAS Latency 3 instead of 2. I thought maybe somebody done this job and will save me a time.</P><P>Thanks</P><P>Eli</P></BODY></HTML> Tue, 10 Mar 2020 06:14:58 GMT https://community.nxp.com/t5/PowerQUICC-Processors/MPC885-CAS-latency/m-p/1007645#M3124 eli_ochakovski 2020-03-10T06:14:58Z Re: MPC885 CAS latency https://community.nxp.com/t5/PowerQUICC-Processors/MPC885-CAS-latency/m-p/1007646#M3125 <HTML><HEAD></HEAD><BODY><P>The following application note describe how to implement SDRAM interface on UPM:</P><P><A href="http://www.freescale.com/files/netcomm/doc/app_note/AN2066.pdf">http://www.freescale.com/files/netcomm/doc/app_note/AN2066.pdf</A></P><P></P><P>Also you could refer to the MPC885ADS Linux BSP containing UPM tables for SDRAM in U-Boot sources (u-boot\board\fads\fads.c):</P><P><A class="link-titled" href="https://www.nxp.com/products/processors-and-microcontrollers/legacy-mcu-mpus/powerquicc-processors/powerquicc-i-mpc8xx/powerquicc-processor-with-cpm-with-atm-usb-dual-10-100-ethernet-security:MPC885?tab=Design_Tools_Tab" title="https://www.nxp.com/products/processors-and-microcontrollers/legacy-mcu-mpus/powerquicc-processors/powerquicc-i-mpc8xx/powerquicc-processor-with-cpm-with-atm-usb-dual-10-100-ethernet-security:MPC885?tab=Design_Tools_Tab">PowerQUICC® Processor with CPM with ATM, USB, Dual 10/100 Ethernet, Security | NXP</A>&nbsp;</P></BODY></HTML> Wed, 11 Mar 2020 01:48:08 GMT https://community.nxp.com/t5/PowerQUICC-Processors/MPC885-CAS-latency/m-p/1007646#M3125 ufedor 2020-03-11T01:48:08Z