From 0a231537c52897a896a702247de8d02f0a87469c Mon Sep 17 00:00:00 2001 From: freitz85 Date: Wed, 23 Aug 2017 19:37:40 +0200 Subject: [PATCH] Update README.md --- README.md | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/README.md b/README.md index ed53bca..fbc79d0 100644 --- a/README.md +++ b/README.md @@ -3,7 +3,7 @@ SD card based ProFile replacement for enhanced Apple IIe computers The **AppleIISd** is an SD card based replaced for the ProFile harddrive. In contrast to other SD card based cards this card does not replace a Disk II drive. Data is saved directly onto the SD card, it is not via images on a FAT system, like on other cards. The SD card is read- / writable with CiderPress. -A CPLD is used as a SPI controller and translates, together with the ROM driver, SD card data to/from the Apple IIe. +A Xilinx CPLD is used as a SPI controller and translates, together with the ROM driver, SD card data to/from the Apple IIe. The VHDL source is based on [SPI65/B](http://www.6502.org/users/andre/spi65b) by André Fachat. The assembler sources are written in Merlin-8. @@ -12,17 +12,19 @@ The assembler sources are written in Merlin-8. * ProDOS driver in ROM * Auto boot * Access LED -* Write protect sensing (not yet) -* Card detect sensing (not yet) ## Requirements The AppleIISd requires and has been tested on an enhanced IIe computer. The ROM code uses some 65c02 opcodes. ProDOS versions 1.1 to 2.4.1 seem to work. ## TODOs +* Much more testing * Support more than one partition * Implement card detect and write protect sensing * Use 7MHz clock as SPI clock +* SRAM option (may never work, though) +* Find a use for the IRQ pin +* Support other EPROMS than 2716 and 2732 -![Alt text](IMG_20170813_124455.jpg) +![Front_Img](IMG_20170813_124455.jpg)