/* Imported from Wayback Machine Original URL : https://www.retrobrewcomputers.org/n8vem-gg-archive/html-2015/Jun/msg00034.html Snapshot date: 2024-02-15 Generator : wayback-archiver */ ---- [[[msg00005.html|Date Prev]]][[[msg00032.html|Date Next]]][[[msg00026.html|Thread Prev]]][[[msg00035.html|Thread Next]]][[[maillist.html#00034|Date Index]]][[[threads.html#00034|Thread Index]]] ====== Re: N8-4314 Issues ====== ---- * //To//: * //Subject//: Re: N8-4314 Issues * //From//: RichLeary <> * //Date//: Sat, 13 Jun 2015 08:39:14 -0700 (PDT) * //In-reply-to//: <1218c8a3-442a-451b-b9ba-10f034cf4ab9@googlegroups.com> * //References//: <74c7c260-c487-4de0-9d4e-8fa91356ec4f@googlegroups.com> <1218c8a3-442a-451b-b9ba-10f034cf4ab9@googlegroups.com> ---- Great News - my second attempt at building a N8-4314 appears to be a good one. System booted right up using ROMWBW 2.7.1 and is totally stable. SD card and LED are working as expected. RTC is working correctly.   I need to test floppy interface and just for fun exercise some of the other I/O including the video, PS2 keyboard, and audio. I need to do some research on that score. As is, the 9918 appears to be responding to some ROMWBW initialization as the screen shows a full screen of the same symbol after a reset. The usual lights on a connected keyboard are dark - do not know if that means anything.   A note on as-built configuration. I used all 74LS logic except for the 574's that are 74ALS574's just because I did not immediately find 74LS574's at DigiKey, my preferred source. CPU oscillator is 18.432 MHz. Since I have no plans to use the ECB interface I have not set the K1 configuration - there is no jumper on K1. K21 & K22 are set to 1-2 jumpered but the two 4700 ohm resistors are still in place - without anything connected to the ECB bus this should also be a "don't care".   Rich Leary   ---- * **Follow-Ups**: * **[[msg00035.html|Re: N8-4314 Issues]]** * //From:// Wayne Warthen * Prev by Date: **[[msg00005.html|Re: [N8VEM: 19693] n8vem homepage requiring login?]]** * Next by Date: **[[msg00032.html|RE: [N8VEM: 19694] N8 Questions]]** * Previous by thread: **[[msg00026.html|Re: [N8VEM: 19701] Re: Dual IDE/floppy v.2 going into production]]** * Next by thread: **[[msg00035.html|Re: N8-4314 Issues]]** * Index(es): * [[maillist.html#00034|**Date**]] * [[threads.html#00034|**Thread**]]