From 10f21e5f856a1746e5acf9db90923d8e4b9beeb0 Mon Sep 17 00:00:00 2001 From: Unknown Date: Sun, 13 Jan 2019 16:30:29 +0100 Subject: [PATCH] Updated README --- RC6502 Apple 1 SBC/README.md | 2 +- README.md | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/RC6502 Apple 1 SBC/README.md b/RC6502 Apple 1 SBC/README.md index d7bdc60..a6dcbbd 100644 --- a/RC6502 Apple 1 SBC/README.md +++ b/RC6502 Apple 1 SBC/README.md @@ -33,7 +33,7 @@ Some vendors will have the same ICs in different form factors, the ones you want | PCB | Fabricate yourself using Gerber files | 1 | | U1 | 6502 CPU DIP-40, UM6502 or SY6502 | 1 | | U2 | 62256 Static RAM DIP-28 | 1 | -| U3 | 74LS128 DIP | 1 | +| U3 | 74LS138 DIP | 1 | | U4 | 28C64 or 28C256 DIP-28, EEPROM | 1 | | U5 | 74LS00 DIP | 1 | | U6 | NE555 DIP | 1 | diff --git a/README.md b/README.md index e081434..9eed202 100644 --- a/README.md +++ b/README.md @@ -12,7 +12,7 @@ I've been documenting the build process of the various components on my blog at ![RC6502 SBC Computer](https://github.com/tebl/RC6502/raw/master/RC6502%20Apple%201%20SBC/gallery/2017-07-09%2015.17.21.jpg) ## Modules -Like the RC2014 I've decided to keep things very modular with each card more or less doing one simple thing, easier to wrap ones head around as a beginner and a lot easier to understand when troubleshooting - also a lot cheaper to upgrade or replace since you don't actually need to replace the entire thing, just the specific board. With the conversion of the RC6502 computer to a SBC-version (Single Board Computer), you now have the option to build an all in one version on a single PCB - alternatively you can build the completely full-sized version as before if you want to! +Like the RC2014 I've decided to keep things very modular with each card more or less doing one simple thing, easier to wrap ones head around as a beginner and a lot easier to understand when troubleshooting - also a lot cheaper to upgrade or replace since you don't actually need to replace the entire thing, just the specific board. With the conversion of the RC6502 computer to a SBC-version (Single Board Computer), you now have the option to build an all in one version on a single PCB - alternatively you can build the completely full-sized version as before if you want to! Most can be accomplished with the SBC version so to start things off, I recommend getting PCBs of the SBC ([order](https://www.pcbway.com/project/shareproject/RC6502_Apple_1_SBC__revision_D_.html?inviteid=88707)) as well as the backplane ([order](https://www.pcbway.com/project/shareproject/RC6502_Apple_1_Replica__Backplane_module_revision_A_.html?inviteid=88707)). In order to build a single board computer (SBC) of RC6502 you'll need the following modules: - [RC6502 SBC](https://github.com/tebl/RC6502/tree/master/RC6502%20Apple%201%20SBC) ([order](https://www.pcbway.com/project/shareproject/RC6502_Apple_1_SBC__revision_D_.html?inviteid=88707))