Differences

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--- builderpages:abingham:jair-8080-notes [2021/09/25 07:59] – Revision from 2021-09-25
+++ builderpages:abingham:jair-8080-notes [2026/06/15 12:55] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 /* Imported from Wayback Machine
-   Original URL : https://www.retrobrewcomputers.org/doku.php?id=builderpages:abingham:jair-8080-notes
+   Original URL : https://retrobrewcomputers.org/doku.php?id=builderpages:abingham:jair-8080-notes
-   Snapshot date: 2021-09-25
+   Snapshot date: 2023-10-03
    Generator    : wayback-archiver
 */
@@ Line 11: / Line 11: @@
 High-resolution photos of my completed board:
-[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:abingham:jair8080-front.jpg|{{builderpages:abingham:jair8080-front.jpg?400|Front}}]]\\
+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:abingham:jair8080-front.jpg|{{builderpages:abingham:jair8080-front.jpg?400|Front}}]]\\
-[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:abingham:jair8080-back.jpg|{{builderpages:abingham:jair8080-back.jpg?400|Back}}]]
+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:abingham:jair8080-back.jpg|{{builderpages:abingham:jair8080-back.jpg?400|Back}}]]
 My primary reference in building this card was the Rev 2.4 'SD Card Image.zip' file located at the bottom of the [[http://www.s100computers.com/My%20System%20Pages/8080%20CPU%20Board/8080%20CPU%20Board%20Rev1.htm|Rev 1 board page on S100Computers.com]]. A detailed PDF manual for the board is located in that .zip file. However, there are a few additional notes which other builders may find useful, I have collected them below.
@@ Line 47: / Line 47: @@
 The image below shows the 2 jumpers installed on my board:
-[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:abingham:jair8080-jumpers.jpg|{{builderpages:abingham:jair8080-jumpers.jpg?400}}]]
+[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:abingham:jair8080-jumpers.jpg|{{builderpages:abingham:jair8080-jumpers.jpg?400}}]]
-Files for Fix #2 - [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:abingham:airsrv25.asm|airsrv25.asm]][[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:abingham:bios.hex|bios.hex]] (put BIOS.HEX on SD card instead of the BIOS.HEX in the v2.4 zip file)
+Files for Fix #2 - [[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:abingham:airsrv25.asm|airsrv25.asm]][[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:abingham:bios.hex|bios.hex]] (put BIOS.HEX on SD card instead of the BIOS.HEX in the v2.4 zip file)
 ===== SD Card Type & Preparation =====
@@ Line 55: / Line 55: @@
 The SD card used with the JAIR board should be a plain 'SD' card, **not** an 'SDHC' or 'SHXC' card. SD cards with capacities < = 2GB are typically plain SD. SDHC and SDXC cards will be labeled as such on the card per the SD specification. The image below shows a suitable SD card for use with the JAIR-8080:
-{{https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:abingham:1gb_sd_card.jpg}}
+{{https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:abingham:1gb_sd_card.jpg}}
 The card needs to be formatted with a single FAT16 partition. The partition 'type' in the MBR partition table must be either type 0x04 (FAT16 < 32MB) or 0x06 (FAT16 > 32MB but < 2GB). Modern Windows OSes format FAT16 partitions as type 0x0E, which is FAT16 > 2GB with INT 13h LBA addressing extension.
@@ Line 63: / Line 63: @@
 **To assist other builders, I have created an image file of a properly formatted 1GB SD card containing the Rev 2.5 BIOS.HEX + Rev 2.4 CPMDISKS.TXT, DISK-A.BIN, DISK-B.BIN, DISK-C.BIN, and DISK-D.BIN. This image may be written to an SD card using the cross-platform program [[https://etcher.io/|Etcher]].** (Note - Etcher will work from the .zip file directly, no need to extra the entire 1GB file!)
-GB SD Card image - [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:abingham:jair8080-2pt5-1gb-sd.zip|jair8080-2pt5-1gb-sd.zip]]
+GB SD Card image - [[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:abingham:jair8080-2pt5-1gb-sd.zip|jair8080-2pt5-1gb-sd.zip]]
 Further details on the SD card partition type can be found in [[https://groups.google.com/d/topic/s100computers/GU3Z0UIP9LY/discussion|this thread]] on the S100Computers Google Group.