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builderpages:speed3ple:ecb-dualsd [2025/03/15 07:39] – Revision from 2025-03-15 builderpages:speed3ple:ecb-dualsd [2026/06/15 13:21] (current) – external edit 127.0.0.1
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 +/* Imported from Wayback Machine
 +   Original URL : https://retrobrewcomputers.org/doku.php?id=builderpages:speed3ple:ecb-dualsd
 +   Snapshot date: 2025-02-12
 +   Generator    : wayback-archiver
 +*/
 +
 +====== ECB DualSD card ======
 +
 +PCB made by JLCPCB from the new Gerber files, but had to rename some files and re-zip before uploading.
 +
 +Compile RomWBW SBC.ASM file with these switches:\\
 +SDENABLE .SET TRUE\\
 +SDMODE .SET SDMODE_DSD
 +
 +Hardware:\\
 +The SD card sockets I have (ebay) needed bending of WP pin and a small cut with a knife to the GND pad next to the WP pin to ensure no short there.\\
 +I used a 9pin 33K SIP resistor in RR3 and a 9pin 1K in RR1. Schematics show that a 10pin is not needed at any of these. All TTL is 74LS.
 +
 +Jumpers:\\
 +The P3 and P4 is like this: [818881] as in 8=open, 1=short.\\
 +I'm not sure how to use P6 settings for IRQ.\\
 +The K2 Reset is set to Kontron std.
 +
 +Seems to be working fine together with SBC v4z, DiskIOv3 and PropIO
 +
 +Pictures are coming…
 +
 +^Text                                                       ^Images                                                                                                                                                            ^
 +|ECB DualSD card works fine with SBC v4z (12Mhz).           |{{[[lib:plugins:ckgedit:fckeditor:userfiles:image:builderpages:speed3ple:images:img_20200706_193944small.jpg]]
 +|Screenshot: RomWBW booting / drivelist                                                                                                                                                                                      |
 +|Screenshot:Copy files between CF(diskio v3) and SD (DualSD)|                                                                                                                                                                  |
 +
 +\\
  
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